Not bad.
Two nits...
- I would make the map larger (I like to depict the surrounding weather
systems and winds)
and
- reverse the order of the winds (higher altitudes on top, lower on
bottom) to visually reflect the actual conditions.

I've revised my personal weather brief form and posted it on my website for
anyone that might find it useful. If you have any suggestions to make it
better, please let me know.
http://www.wizardofdraws.com/main/wxbrief.html