...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. The National Weather Service in Des Moines has issued a Fire Weather Watch, which is in effect from Saturday morning through Saturday evening. * AFFECTED AREA...Parts of central and southern Iowa. * WIND...For Friday, Northwest winds at 10-15 mph, gusting to 20-30 mph. For Saturday, Southwest winds at 20-25 mph, gusting to 30-40 mph. * HUMIDITY...For Friday, minimum values of 20-25 percent. For Saturday, minimum values of around 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.