Severe

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: Methow Valley (Zone 704) and Foothills of Central Washington Cascades (Zone 705). * Winds: West 15 to 25 mph with gusts up to 50 mph. * Relative Humidities: 20 to 27 percent. * Impacts: Rapid fire spread is expected with any new or ongoing fires. A Red Flag Warning means that critical fire weather conditions

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. ...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2 PM UNTIL 8 PM SATURDAY FOR THE FOLLOWING AREAS: OKANOGAN VALLEY (ZONE 703) - COLVILLE RESERVATION (ZONE 702) - WATERVILLE PLATEAU (ZONE 706) - WESTERN COLUMBIA BASIN (ZONE 707) - EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708) AND LOWER PALOUSE -

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: Northern and Central Idaho Panhandle (Zone 101), Okanogan Highlands and Kettle Mountains (Zone 699), Selkirk Mountains of Northeast Washington (Zone 700) and Foothills of Northeast Washington (Zone 701). * Winds: Southwest 10 to 20 mph with gusts up to 40 mph. * Relative Humidities: 15 to 27 percent.

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: East Washington Central Cascades (Zone 696), East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697) and East Washington North Cascades (Zone 698). * Winds: West 15 to 25 mph with gusts up to 45 mph. * Relative Humidities: 15 to 30 percent in the valleys and 30 to

* IMPACTS: Low humidities, hot temperatures, gusty winds, and wind shift with a cold front will create erratic fire behavior. * AFFECTED AREA: In South Central MT Fire Zones...123...124...125...126...127 128. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In South Central MT...Carbon...Park...Stillwater...Sweet Grass Yellowstone. In Southwest MT...Gallatin. * WIND: Southwest 10 to 20 mph with gusts up to 35 mph Saturday, becoming northwest 10 to 20 mph Sunday.

* IMPACTS: Low humidities, hot temperatures, strong gusty winds, and wind shift with a cold front will create erratic fire behavior. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zone...129. In Southeast MT Fire Zones...130...131...132. * COUNTIES AFFECTED: In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In South Central MT...Big Horn...Carbon...Yellowstone. In Southeast MT...Custer...Powder River...Rosebud...Treasure.

* WHAT...For the Heat Advisory, high temperatures up to 102 degrees expected. For the High Wind Warning, west winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...Eastern Glacier, Western Toole, and Central Pondera. * WHEN...For the Heat Advisory, from noon Saturday to 3 AM MDT Sunday. For the High Wind Warning, from 6 PM Saturday to noon MDT Sunday. * IMPACTS...Damaging winds will blow down trees and power lines. Travel could be difficult, especially for high profile vehicles.

* WHAT...Dangerously hot conditions. High temperatures on Saturday between 100 to 110 degrees, with overnight lows Saturday night between 70 to 75 degrees. * WHERE...Bears Paw Mountains and Southern Blaine, Fergus County below 4500ft, and Western and Central Chouteau County. * WHEN...From noon Saturday to noon MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. Do not leave young children and pets in unattended vehicles. Car

* WHAT...Dangerously hot conditions. High temperatures between 100 and 105 degrees expected. * WHERE...Cascade County below 5000ft, Judith Basin County and Judith Gap, Gallatin Valley, and Madison River Valley. * WHEN...From noon Saturday to 3 AM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph expected. Isolated wind gusts up to 75 mph along the immediate eastern slopes of the Rocky Mountain Front. * WHERE...East Glacier Park Region Zone, and Northern High Plains. * WHEN...From 6 PM Saturday to noon MDT Sunday. * IMPACTS...Damaging winds will blow down trees and power lines. Travel could be difficult, especially for high profile vehicles. Recreationists should be aware of any trees that could fall while establishing camps or hiking.