Expected

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.

* AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty, Hill and Blaine Counties, Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front, Chouteau and Fergus Counties, Lincoln Ranger District of the Helena National Forest, Central and Eastern Lewis and Clark National Forest Areas and Helena and Townsend Ranger Districts of the Helena National Forest. * WINDS...West 15 to 25 mph with gusts up to 50 mph. Along the

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 108 expected. For the Lake Wind Advisory, west winds 10 to 20 mph with gusts up to 30 mph expected. * WHERE...McCone County. * WHEN...For the Extreme Heat Warning, from noon Saturday to 6 PM MDT Sunday. For the Lake Wind Advisory, from 6 PM Saturday to 6 PM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Heat related illnesses

* WHAT...Dangerously hot conditions with temperatures up to 107 expected. * WHERE...Northern Phillips, Northern Valley, and Southwest Phillips Counties. * WHEN...From noon Saturday to noon MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car