...Critical Fire Weather Conditions Expected Friday and Saturday... .Breezy northwest winds, along with cured fuels and low RH values in the 20s, especially over southwest to west central Iowa Friday afternoon to evening will lead to critical fire weather conditions. Saturday will feature even gustier winds, along with lower RH values, warming temperatures and dry fuels will lead to continued critical fire weather conditions. Burning is not recommended. * AFFECTED AREA...Parts of Northern Iowa * WIND...Southwest winds at 20-25 mph, gusting to 30-40 mph * HUMIDITY...Minimum values around 15 percent * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.