Here are some of the weather sites on the Internet I am watching to plan your flight.
Here are some of the things I am looking for:
Light winds (8 or less) for an hour before to 3 hours after the flight time.
No fog or clouds below 5,000 feet
Visibility greater than 5 miles.
No rain or storms within 75 to 100 miles.

These are just some of the factors and of course, my decision is always final.

Air Sports Net

Weather Underground (click hourly under the day of the week)

LAMP Forecast

http://www.blastvalve.com/weather/ok/

http://www-frd.fsl.noaa.gov/mab/soundings/reply-skewt.cgi?data_source=RUC2&lon=-104.67&lat=39.87&airport=okc

Balloonist's Wind forecast OKC

This morning http://www.blastvalve.com/weather/weather.pl?icao1=KPWA&icao2=KOKC&icao3=KGOK&fb1=KOKC&fb2=KGAG&fb3=KTUL&When=AM&Submit=Get+BalloonCast

This evening http://www.blastvalve.com/weather/weather.pl?icao1=KPWA&icao2=KOKC&icao3=KGOK&fb1=KOKC&fb2=KGAG&fb3=KTUL&When=PM&Submit=Get+BalloonCast

Tomorrow morning http://www.blastvalve.com/weather/weather.pl?icao1=KPWA&icao2=KOKC&icao3=KGOK&fb1=KOKC&fb2=KGAG&fb3=KTUL&When=TM&Submit=Get+BalloonCast

http://www.weathermeister.com/free/index_old.jsp

Weather.com

AccuWeather.com

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