Inspired by
Develop your own weather maps and alerts with Perl and GD, I have put together a script which downloads the base radar image from a specific site at a specified interval.
use strict;
use LWP::Simple;
use POSIX;
my $refresh = 1800;
do {
my $base="http://radar.weather.gov/ridge/RadarImg/N0R/MTX_N0R_0.gi
+f";
my $timestring = strftime( "%Y%m%d_%H%M%S", gmtime() );
my $savefilename = "SLCRadar_".$timestring.".gif";
my $status = getstore($base,$savefilename);
print $status."\n" ;
sleep $refresh;
} while ($refresh);