Critical fire weather conditions will develop Thursday afternoon and evening. An area of low pressure dropping south from the Pacific Northwest will bring gusty winds up to 40 mph with locally higher gusts up to 50 mph as relative humidity drops to 10-15 percent in Western Nevada and 15-20 percent in the Tahoe Basin. The graphic indicates the areas highlighted in red where the red flag warning is in effect which includes: The Greater Lake Tahoe Basin, Western Nevada Sierra Front and West Central Nevada Basin and Range, Mineral and Southern Lyon Counties, and Mono and Eastern Alpine Counties. North of the red flag warning moisture associated with the low pressure will raise relative humidity values but winds will remain gusty. For more information please refer to the Red Flag Warning at http://www.weather.gov/reno. (click for more)