21625f40b5
I tried to get the latest versions from dockapps.org, but I haven't tested any of them. More dockapps will be added as time permits.
419 lines
14 KiB
Groff
419 lines
14 KiB
Groff
.de Sh
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.br
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.if t .Sp
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.ne 5
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.PP
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\fB\\$1\fR
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.PP
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..
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.TH wmweather+ 1x "August 17, 2010"
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.SH NAME
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wmweather+ \- A dock app for displaying weather information
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.P
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.SH SYNOPSIS
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.B wmweather+
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.RB [\| options \|]
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.SH DESCRIPTION
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\fBwmweather+\fP downloads current conditions, forecast data, and optionally a
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radar image. It will also watch for various warnings and display them using an
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external command.
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.SH OPTIONS
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Note that later options override earlier ones, and command line options
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override configuration file options. All multi-character options may be
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specified with one or two leading dashes. The configuration file is simply one
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option (with value if necessary) per line, leading dashes optional. Empty lines
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and lines beginning with the '#' character are ignored.
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.SS General Options
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.TP
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.BI "-display " <display\ name>
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Name of display to use.
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.TP
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.BI "-c " <file>
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Specify a configuration file instead of the default. This option is ignored in
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the configuration file.
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.TP
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.BI "-display-mode " <string>
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Specify the starting display mode. Valid values are "cur"/"current",
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"fcst"/"forecast", and "map"/"radar".
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.TP
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.BI "-location " <latitude+longitude>
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Specify a latitude and longitude, for example "41'59'00N 87'55'00W" or
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"N41.9833333333333 W87.9166666666667". You may use either the decimal or DMS
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notation, with either a prefixed sign or a prefixed or suffixed N/S/E/W. If
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this option isn't given, the program will assume you live on the equator and
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guess your longitude based on your system timezone offset.
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.TP
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.BR "-e\fR,\fP\ -email " <address>
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Specify the anonymous FTP password.
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.TP
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.BR -v ", " -version
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Display version number and exit.
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.TP
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.BI "-viewer " <program>
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External program for viewing weather warnings. This command must take the text
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to display from standard input. It will be executed as '/bin/sh -c
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\fI<program>\fP' with stdout redirected to /dev/null. If not specified, it will
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default to "xless".
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.TP
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.BR -animate ", " -noanimate
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Turn animation on or off. Animation may still be toggled with the middle mouse
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button as described below. The default is on.
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.SS Station Options
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.TP
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.BI "-s\fR,\fP\ -station " <ID>
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Station ID for all stations. Equivalent to
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.RI "'-metar-station " <ID> " -avn-station " <ID>
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.RI " -eta-station " <ID> " -mrf-station " <ID> '.
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.TP
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.BI "-metar-station " <ID>
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Station ID for METAR observations. See \fBCurrent Conditions\fP for more
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information. A value must be provided.
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.TP
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.BI "-avn-station " <ID>
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Station ID for AVN forecasts. See \fBForecasts\fP for more information.
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.TP
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.BI "-eta-station " <ID>
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Station ID for ETA forecasts. See \fBForecasts\fP for more information.
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.TP
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.BI "-mrf-station " <ID>
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Station ID for MRF forecasts. See \fBForecasts\fP for more information.
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.TP
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.BI "-warning-zone " <zoneID>
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Zone ID for weather warnings. See \fBWarnings\fP for more information. This
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option may be repeated for multiple zones.
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.TP
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.BI "-forget-warning-zones"
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Cause wmweather+ to forget all warning zones found to this point. Useful for
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user configuration files to override the warning zones specified in the
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system-wide configuration.
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.P
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.BI "-metar-uri " <URI>
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.br
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.BI "-avn-uri " <URI>
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.br
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.BI "-eta-uri " <URI>
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.br
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.BI "-mrf-uri " <URI>
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.br
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.BI "-warning-uri " <URI>
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.RS
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URI to download the specified data from. See \fBURIs\fP for more information.
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.RE
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.P
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.BI "-metar-post " <DATA>
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.br
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.BI "-avn-post " <DATA>
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.br
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.BI "-eta-post " <DATA>
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.br
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.BI "-mrf-post " <DATA>
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.br
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.BI "-warning-post " <DATA>
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.RS
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Post data for downloading the specified data. See \fBURIs\fP for more
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information. Note that the post option must follow the corresponding URI
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option. Note that the post data will \fInot\fP be URL-encoded for you.
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.RE
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.TP
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.B -noradar
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Do not display a radar image. This is the default.
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.P
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.BI "-radar-uri " <URI>
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.br
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.BI "-radar-post " <DATA>
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.RS
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Retrieve an image from the specified URI. See \fBRadar Map\fP for more
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information.
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.RE
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.TP
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.BI "-radar-crop " <string>
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How to crop the radar image.
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.IR X x Y + W + H
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format. See \fBRadar Map\fP for more information.
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.TP
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.BI "-radar-cross " <string>
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Where to draw radar crosshairs.
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.IR X x Y
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format. See \fBRadar Map\fP for more
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information.
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.SS Measurement Options
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.TP
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.BR -m ", " -metric
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Same as '-cm -hPa -kph -tempc'.
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.TP
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.B -in
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Display precipitation amounts in inches. This is the default.
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.TP
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.B -cm
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Display precipitation amounts in centimeters.
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.TP
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.B -inHg
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Display pressure in inches of mercury. This is the default.
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.TP
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.BR -hPa ", " -mbar
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Display pressure in hectopascal (millibars)
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.TP
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.B -mmHg
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Display pressure in millimeters of mercury.
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.TP
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.B -atm
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Display pressure in atmospheres.
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.TP
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.B -mph
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Display windspeed in miles/hour. This is the default.
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.TP
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.B -kph
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Display windspeed in kilometers/hour.
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.TP
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.B -knots
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Display windspeed in knots.
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.TP
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.B -mps
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Display windspeed in meters/second.
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.TP
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.B -beaufort
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Display windspeed on the Beaufort scale.
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.TP
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.B -tempf
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Display temperature in degrees Fahrenheit. This is the default.
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.TP
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.B -tempc
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Display temperature in degrees Celcius.
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.SH DISPLAY
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The dockapp has three display modes: Current Conditions, Forecasts, and Radar
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Map. Modes are selected by the buttons across the top of the icon. Weather
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Warning status is indicated by the font color. At any point
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double-(left)clicking the main display will send SIGUSR1 to the process (see
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\fBSIGNALS\fP).
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.Sh "Current Conditions"
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This mode displays the current conditions as given in the METAR report for the
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selected station, as downloaded from
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.UR http://weather.noaa.gov/pub/data/observations/metar/stations/
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http://weather.noaa.gov/pub/data/observations/metar/stations/
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.UE
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.RI .
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Downloads are attempted every 15 minutes. Find your station at
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.UR http://www.nws.noaa.gov/tg/siteloc.shtml
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http://www.nws.noaa.gov/tg/siteloc.shtml
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.UE
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.RI .
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.P
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The station ID is displayed at the top left of the display. The observation
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date (local) is to the right, and the time (local and UTC) occupies the line
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below. Under that, to the right is the temperature and relative humidity, the
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wind direction and speed, the atmospheric pressure (indicated by "P"), the
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heat index (indicated by "HI"), and the wind chill (indicated by "WC").
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.P
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To the left is a graphical display of the current weather. The sky condition is
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indicated as clear (sun), partly cloudy (sun with small clouds), mostly cloudy
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(sun behind a large cloud), or overcast (large cloud). This image may be
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covered by fog (foggy overlay), dust/sand/haze (brownish particles), or blowing
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snow/dust/sand (blue wind-lines), with the level of transparency indicating the
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degree of visibility. If a funnel cloud or tornado was reported, a tornado
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graphic will be displayed instead of the sky condition.
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.P
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Beneath this graphic, icons will depict rain (raindrop), snow (snowflake),
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freezing precipitation (hailstones), and thunderstorms (lightning bolt). If
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animation is enabled, the icons will appear and vanish on a ten second cycle
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to indicate precipitation intensity. Animation may be enabled or disabled by
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middle-clicking the display.
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.Sh Forecasts
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This mode displays the current conditions as given in the AVN, ETA, and MRF
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data for the selected stations, as downloaded from
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.UR http://www.nws.noaa.gov/tdl/synop/products/bullform.mav.htm
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http://www.nws.noaa.gov/tdl/synop/products/bullform.mav.htm
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.UE
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.RI ,
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.UR http://www.nws.noaa.gov/mdl/synop/products/bullform.met.htm
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http://www.nws.noaa.gov/mdl/synop/products/bullform.met.htm
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.UE
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and
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.UR http://www.nws.noaa.gov/tdl/synop/products/bullform.mex.htm
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http://www.nws.noaa.gov/tdl/synop/products/bullform.mex.htm
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.UE
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.RI .
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AVN and ETA reports are downloaded at startup, 0000Z, and 1200Z. MRF reports
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are downloaded at startup and 0000Z. In the event of failure, downloads will be
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retried every 15 minutes. See the URIs given to find your stations.
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.P
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The display is divided into two sections. A small window at the top indicates
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the date and hour (local time) for which this forecast is valid. Left-clicking
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this window or clicking the small arrow-button to the right will advance to
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the next forecast; right-clicking or clicking the small arrow-button to the
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left will move to the previous forecast. Middle-clicking will return to the
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first forecast in the list.
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.P
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The larger display at the bottom shows the forecast for the selected date and
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time. To the right from top to bottom are the station ID, the daily high and
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low temperatures, the predicted temperature and relative humidity, and the
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wind direction and speed. The final line may display the heat index (HI), the
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wind chill (WC), the amount of snow to fall in that period (SN), the amount of
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liquid-equivalent precipitation to fall in that period (P), or the forecast
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type (e.g. "AVN" or "MRF").
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.P
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To the left is a weather display similar to that for the Current Conditions.
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The animation here indicates the percent chance of rain, snow, freezing
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precipitation, thunderstorms, and severe thunderstorms (large lightning bolt).
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Animation may be turned on or off with the middle button. When animation is
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off, the mouse wheel may be used to adjust the cutoff chance for the display
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(hold Shift to adjust faster). The cutoff will be displayed briefly when first
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turning off animation, when first displaying forecasts, whenever button 6
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(typically, the 'side' button) is held down in the large display. Permanent
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cutoff display may be toggled by double-middle-clicking the large display.
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.Sh "Radar Map"
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The radar image will be downloaded every 30 minutes from the URI specified.
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Then, if -radar-crop was specified in the form
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.IR X x Y + W + H ,
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a subimage of witdh \fIW\fP and height \fIH\fP will be taken, with the
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upper-left pixel taken from
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.RI ( X ", " Y ).
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If \fIX\fP or \fIY\fP is negative, it will be measured from the right/bottom of
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the image instead of the top/left. The image is then resized to fit within the
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52x40 rectangle available. A border around the image indicates the current font
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color. If -radar-cross was specified in the form
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.IR X x Y ,
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crosshairs will then be
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drawn over the pixel
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.RI ( X ", " Y )
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when the middle button is held on the radar map.
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.P
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If -noradar was specified or no radar data is available, an image to that
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effect will be displayed instead.
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.P
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Some nice images are available from
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.UR http://weather.noaa.gov/radar/mosaic/DS.p19r0/ar.us.conus.shtml
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http://weather.noaa.gov/radar/mosaic/DS.p19r0/ar.us.conus.shtml
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.UE
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and
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.UR http://www.weather.com/common/home/maps.html
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http://www.weather.com/common/home/maps.html
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.UE
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.RI .
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Be kind, since the display is so small pick the smallest version of the image
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to download.
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.Sh "Weather Warnings"
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Various weather warnings, watches, and statements for the specified zone are
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downloaded from
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.UR http://weather.noaa.gov/pub/data/watches_warnings/
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http://weather.noaa.gov/pub/data/watches_warnings/
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.UE
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.RI .
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Downloads are attempted at the same time METAR observations are retrieved. Find
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your zone at
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.UR http://weather.noaa.gov/
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http://weather.noaa.gov/
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.UE
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or
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.UR http://weather.gov/
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http://weather.gov/
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.UE
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.RI .
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Note that some areas issue weather warnings by multiple geopolitical units
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(e.g. "zones" and "counties"). The -warning-zone option may be specified
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multiple times, so all appropriate files may be inspected.
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.P
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If any new warnings are downloaded, all text will be displayed in an
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orange/red scheme instead of the normal blue/orange. The new warnings may then
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be viewed by left-clicking the large display window in any mode. At any point,
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all current warnings may be displayed by right-clicking the large display.
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.SH "URIs"
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The URIs from which the various observations, forecasts, and images are
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downloaded can be easily customized by supplying values for the various
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.I -*-uri
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options. The following substitution variables are available:
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.TP
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.B %s
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The station ID for the specified data type (note that warnings have no station
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ID).
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.TP
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.B %z
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The zone ID, for warnings.
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.TP
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.B %f
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The warning type, for warnings (e.g. "tornado", "special_weather_stmt").
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.P
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The substitutions can be manipulated with the standard
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.BR printf (3)
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modifiers for strings, in particular the
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.BR # ", " 0 ", " - ", "
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.BR "' '" ", " + ", and " '
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flags, the
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.BR "field width" ,
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and the
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.B precision
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fields are accepted. Also, an additional flag
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.B !
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is recognized to use the capitalized versions of various numeric flags (e.g.
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\fBX\fP versus \fBx\fP) and to capitalize character or string values, and an
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additional syntax
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.BI ">" "<offset>"
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after the precision is recognized to start at an offset into the string value
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(negative values indicate offset from the end of the string).
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.P
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The current defaults are:
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.TP
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metar-uri
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.nf
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http://weather.noaa.gov/pub/data/observations/metar/stations/%s.TXT
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.fi
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.TP
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avn-uri
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.nf
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http://www.nws.noaa.gov/cgi-bin/mos/getmav.pl?sta=%s
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.fi
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.TP
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eta-uri
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.nf
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http://www.nws.noaa.gov/cgi-bin/mos/getmet.pl?sta=%s
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.fi
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.TP
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mrf-uri
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.nf
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http://www.nws.noaa.gov/cgi-bin/mos/getmex.pl?sta=%s
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.fi
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.TP
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warning-uri
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.nf
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http://weather.noaa.gov/pub/data/watches_warnings/%f/%.2z/%z.txt
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.fi
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.SH FILES
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.TP
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.I $HOME/.wmweather+/
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Directory used to store downloaded data files. These files may be deleted at
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any time.
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.TP
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.I $HOME/.wmweather+/conf
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User configuration.
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.TP
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.I /etc/wmweather+.conf
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System configuration.
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.TP
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.I $HOME/.wmweather+/.dir-test
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Created and deleted to test write access to \fI$HOME/.wmweather+/\fP
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.SH SIGNALS
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.TP
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.I SIGUSR1
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Forces downloads for the current mode to be attempted immediately.
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.TP
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.I SIGUSR2
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Forces all downloads to be attempted immediately.
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.SH BUGS
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Before reporting a bug, please check the HINTS file (in particular,
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proxy instructions are in that file). Also, please verify that you have
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the latest version of wmweather+, and that your bug has not already been
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reported. Bugs may be filed at
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.UR http://sourceforge.net/tracker/?group_id=60336&atid=493854
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http://sourceforge.net/tracker/?group_id=60336&atid=493854
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.UE
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.RI .
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.SH AUTHORS
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\fBwmweather+\fP was written by \fIBrad Jorsch
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<anomie@users.sourceforge.net>\fP, using the wmgeneral code by \fIMartijn
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Pieterse <pieterse@xs4all.nl>\fP.
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.P
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Email regarding wmweather+ should be sent to
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\fIanomie@users.sourceforge.net\fP.
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.SH INSPIRATION
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wmWeather was a good idea, but it didn't give me enough information. However,
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no code from wmWeather was used in writing wmweather+.
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