Severe

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from 1 PM Sunday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona.

* WHAT...Dangerously hot conditions with high temperatures of 98 to 108. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...Until midnight MDT tonight. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Low temperatures in the 60s and 70s tonight followed by high temperatures in the 90s Sunday may cause lingering heat stress, especially for those without relief from the heat.

SVRCAE The National Weather Service in Columbia has issued a * Severe Thunderstorm Warning for... Northwestern Calhoun County in central South Carolina... Southeastern Lexington County in central South Carolina... Northwestern Orangeburg County in central South Carolina... * Until 330 PM EDT. * At 245 PM EDT, a severe thunderstorm was located 9 miles southwest of Gaston, or 16 miles south of Red Bank, moving northeast at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and powerlines.

FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Vermilion County in east central Illinois... * Until 445 PM CDT. * At 146 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of the Big Bend and Panhandle of Florida, including the following areas, in the Big Bend of Florida, Gadsden, Inland Jefferson, Leon, Madison and Northern Liberty. In the Panhandle of Florida, Calhoun. * WHEN...Through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of the Big Bend and Panhandle of Florida, including the following areas, in the Big Bend of Florida, Coastal Bay, Coastal Dixie, Coastal Franklin, Coastal Jefferson, Coastal Taylor, Coastal Wakulla, Inland Dixie, Inland Franklin, Inland Taylor, Inland Wakulla, Lafayette and Southern Liberty. In the Panhandle of Florida, Coastal Gulf, Inland Bay and Inland Gulf. * WHEN...Through Monday afternoon.

...CRITICAL FIRE WEATHER CONCERNS THIS WEEKEND... * WIND...Southeast winds today will become west and northwest on Sunday with speeds at 15 to 25 mph with gusts to 35 mph. * HUMIDITY...minimum relative humidity ranging 8 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning.

The National Weather Service in Elko has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 2 PM to 11 PM PDT Sunday. * Affected Area...Fire Weather Zone 470 Eastern Elko County. * Winds...West to northwest 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 8 percent. * Impacts...The combination of gusty winds and low humidity will create critical fire weather conditions. A red flag warning means that critical fire weather conditions

FFWCAE The National Weather Service in Columbia has issued a * Flash Flood Warning for... East Central Columbia County in east central Georgia... North Central Richmond County in east central Georgia... * Until 530 PM EDT. * At 226 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2 inches of rain have fallen. The expected rainfall rate is 1.25 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in

* WHAT...Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 103 to 108 degrees at Havasupai Gardens, and 111 to 115 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Tuesday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. This warning is reserved for only the hottest days of the year and is