Animated temperature map

It’s hot. Here’s an animated map of temperatures for the day, from the aviation forecast. Normally this kind of angry rainbow palette is the worst sort of visualization sin, but it’s sort of appropriate for a hot day like today.

Making an animated GIF well is harder than I remember if you care about filesize.

#!/bin/bash
# Source: http://weather.aero/tools/weatherproducts/windstemps
for n in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18; do
    wget -O $n.gif "http://weather.aero/data/winds/ruc"$n"hr_sfc_temp.gif"
done
gm convert -filter box -resize 315x -loop 0 -delay 25 ??.gif animation.gif