The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from noon Thursday to midnight PDT Thursday night. The Red Flag Warning has been cancelled. * Affected Area. Fire Weather Zone 278 Eastern Lassen County, Fire Weather Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Weather Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties, Fire Weather Zone 423 West Humboldt Basin in Pershing County, Fire Weather Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties and Fire Weather Zone 458 Northern Washoe County. * Winds. West to southwest winds 15 to 25 mph with gusts to 35 mph with wind prone areas gusting up to 45 mph. * Humidity. Relative humidity will range 10 to 15 percent Thursday afternoon into the evening. * Duration. There is potential for 3 to 6 hours of gusty winds along with low relative humidity values. * Impacts. The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them.