Severe

...Critical Fire Weather Conditions Expected Tuesday... .Windy conditions and low relative humidity will combine with dry fuels resulting in potential for wildfire spread. The National Weather Service in Pendleton has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 11 PM PDT Tuesday. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 10 AM to 11 PM PDT Tuesday. * WINDS...Northwest 25 to 35 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 18 percent.

* WHAT...Westerly winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Big Belt, Bridger and Castle Mountains. * WHEN...From noon today to midnight MDT tonight. * IMPACTS...Inclement conditions for outdoor recreation, especially activities involving boating or recreation in the mountains. Travel will be difficult, especially for high profile vehicles. Isolated power outages and or tree damage possible. People are urged to secure loose objects that could be blown around or damaged by the wind.

* WHAT...Westerly winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Upper Blackfoot and MacDonald Pass, Eastern Glacier, Western Toole, and Central Pondera, Northern High Plains, Southern High Plains, and Southern Rocky Mountain Front, and East Glacier Park Region Zone. * WHEN...From noon today to midnight MDT tonight. * IMPACTS...Inclement conditions for outdoor recreation, especially activities involving boating or recreation in the mountains. Travel

* WHAT...Westerly winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Judith Basin County and Judith Gap. * WHEN...From noon today to midnight MDT tonight. * IMPACTS...Inclement conditions for outdoor recreation, especially activities involving boating. Travel will be difficult, especially for high profile vehicles. Isolated power outages and or tree damage possible. People are urged to secure loose objects that could be blown around or damaged by the wind.

* WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Koyukuk River and Slate Creek. * WHEN...Until 1000 PM AKDT Tuesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1000 PM AKDT, river gauge reports indicate steep rises in water levels from rain and snowmelt that is beginning to cause flooding. Rapid river rises have already caused flooding of the Middle Fork of the Koyukuk River and it's

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Louisiana, including the following parishes, Bienville, Caldwell, De Soto, Grant, Jackson, La Salle, Natchitoches, Ouachita, Red River, Sabine and Winn and east Texas, including the following counties, Angelina, Nacogdoches, Sabine, San Augustine and Shelby. * WHEN...Through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

* WHAT...Dangerously hot conditions with temperatures upwards of 110 degrees possible. * WHERE...Palo Duro Canyon. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Monitor the latest forecasts and warnings for updates.

At 1223 AM CDT/1123 PM MDT/, a severe thunderstorm was located 9 miles north of Big Bow, moving south at 20 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Big Bow. For your protection move to an interior room on the lowest floor of a building.

...WARM, DRY, AND WINDY TUESDAY WITH COLD FRONT PASSAGE... * Affected Area: Colville Reservation (Zone 702), Okanogan Valley (Zone 703), Methow Valley (Zone 704), Foothills of Central Washington Cascades (Zone 705), Waterville Plateau (Zone 706), Western Columbia Basin (Zone 707), Eastern Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: West 15 to 30 mph with gusts of 40 to 50 mph. * Relative Humidities: 12 to 23 percent.

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of southeast Mississippi, including the following counties, George, Greene, Perry, Stone and Wayne. * WHEN...Through Thursday 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. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS...