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* IMPACTS...Any fires that develop could spread rapidly. * AFFECTED AREA...In California...Fire weather zone 280. In Oregon, fire weather zone 618, 619, and 620. This includes portions of the Western Klamath National Forest, Southern Oregon Coast, Western Siskiyou National Forest, and the Illinois Valley. Poor RH recovery and gusty northeast winds will affect ridges overnight, while all of the area will receive gusty northeast winds and low RH in the afternoons. * WIND...This afternoon 10 to 20 mph with gusts up to 30 mph, then increasing to 15 to 25 mph with gusts up to 35 mph tonight into Tuesday morning. * HUMIDITY...Single digits to upper teens in the afternoon. Recoveries only 20 to 35 percent tonight. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Temperatures have warmed above freezing and will continue to do so throughout the day. Therefore, the Freeze Warning will be allowed to expire.

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Republic, Orin-Rice Road, Lookout Pass, Athol, Wauconda, Springdale-Hunters Road, Wallace, Kettle Falls, Ione, Fruitland, Northport, Newport, Highway 20 Wauconda Summit, Dobson Pass, Chesaw Road, Sandpoint, Clark Fork, Chewelah, Colville, Priest River, Fernwood, St. Maries, Pinehurst, Metaline Falls, Inchelium, Flowery Trail Road, Schweitzer Mountain Road, Eastport, Fourth Of July Pass, Sherman Pass, Tiger, Deer Park, Kellogg, Boulder Creek Road, Osburn, Mullan, Metaline, and Bonners Ferry. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 29. * WHERE...Potlatch, Uniontown, Oakesdale, Tekoa, Rosalia, Moscow, Colfax, Genesee, La Crosse, Plummer, and Pullman. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Okanogan, Omak, Grand Coulee, Craigmont, Odessa, Ephrata, Winchester, Worley, Moses Lake, Fairfield, Soldiers Meadow Road, Bridgeport, Creston, Rockford, Downtown Spokane, Ritzville, Disautel Pass, Brewster, Nezperce, Spokane Valley, Nespelem, Oroville, Coulee City, Othello, Tonasket, Coeur d'Alene, Cheney, Badger Mountain Road, Hayden, Quincy, Waterville, Airway Heights, Post Falls, Mansfield, Davenport, Kamiah, Wilbur, and Harrington. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

* IMPACTS...Any fires that develop could spread rapidly. * AFFECTED AREA...In California...Fire weather zone 280. In Oregon, fire weather zone 618, 619, and 620. This includes portions of the Western Klamath National Forest, Southern Oregon Coast, Western Siskiyou National Forest, and the Illinois Valley. Poor RH recovery and gusty northeast winds will affect ridges overnight, while all of the area will receive gusty northeast winds and low RH in the afternoons. * WIND...Through this morning, east winds 15 to 30 mph with gusts up to 40 mph. This afternoon 10 to 20 mph with gusts up to 30 mph, then increasing to 15 to 25 mph with gusts up to 35 mph tonight into Tuesday morning. * HUMIDITY...Single digits to upper teens in the afternoon. Recoveries only 25 to 50 percent this morning and 20 to 35 percent tonight. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from this evening through Tuesday morning. * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...Fire weather zones 621, 622 and 623. This includes the Siskiyou Mountains, portions of the Rogue River National Forest in the Eastern Rogue Valley region and the Winema National Forest of westernmost Klamath County nearest the Southern Oregon Cascades. * WIND...Tonight into Tuesday morning, east winds 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...Relative humidity recoveries tonight into Tuesday morning of only 20 to 35 percent. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Pullman, La Crosse, Uniontown, Oakesdale, Colfax, Tekoa, and Rosalia. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Othello, Moses Lake, Coulee City, Creston, Spokane Valley, Fairfield, Airway Heights, Badger Mountain Road, Ephrata, Harrington, Ritzville, Downtown Spokane, Quincy, Mansfield, Grand Coulee, Davenport, Rockford, Wilbur, Cheney, Odessa, and Waterville. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Clark Fork, Mullan, Flowery Trail Road, Springdale-Hunters Road, Priest River, Athol, Inchelium, Metaline Falls, Newport, Northport, Chewelah, Orin-Rice Road, Ione, Schweitzer Mountain Road, Kellogg, Boulder Creek Road, Highway 20 Wauconda Summit, Fernwood, St. Maries, Fourth Of July Pass, Wauconda, Republic, Dobson Pass, Metaline, Kettle Falls, Pinehurst, Tiger, Deer Park, Fruitland, Chesaw Road, Wallace, Sandpoint, Bonners Ferry, Sherman Pass, Eastport, Lookout Pass, Colville, and Osburn. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Bridgeport, Craigmont, Worley, Oroville, Okanogan, Hayden, Nespelem, Omak, Nezperce, Coeur d'Alene, Disautel Pass, Kamiah, Post Falls, Tonasket, Winchester, Soldiers Meadow Road, and Brewster. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

* IMPACTS...Any fires that develop could spread rapidly. * AFFECTED AREA...In California...Fire weather zone 280. In Oregon, fire weather zone 618, 619, and 620. This includes portions of the Western Klamath National Forest, Southern Oregon Coast, Western Siskiyou National Forest, and the Illinois Valley. Poor RH recovery and gusty northeast winds will affect ridges overnight, while all of the area will receive gusty northeast winds and low RH in the afternoons. * WIND...Tonight into Monday morning, 15 to 30 mph with gusts up to 40 mph. Monday afternoon 10 to 20 mph with gusts up to 30 mph, then increasing to 15 to 25 mph with gusts up to 35 mph Monday night into Tuesday morning. * HUMIDITY...Single digits to upper teens in the afternoon. Recoveries only 25 to 50 percent tonight and 20 to 35 percent Monday night. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Grande Ronde Valley. * WHEN...From 11 PM this evening to 9 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Areas of sub-freezing temperatures are expected overnight into Monday morning in cold-prone locations of the Grande Ronde Valley.

* WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Central Oregon. * WHEN...From 11 PM this evening to 9 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Areas of sub-freezing temperatures are expected overnight into Monday morning in cold-prone locations of central Oregon.

* WHAT...Sub-freezing temperatures as low as 23 expected. * WHERE...Wallowa County. * WHEN...From 11 PM this evening to 9 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Widespread sub-freezing temperatures are expected overnight into Monday morning in cold-prone locations of Wallowa Valley.

* WHAT...Northwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Kittitas Valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Patchy blowing dust can also be expected.

* WHAT...Visibility between one-quarter and one mile in blowing dust. * WHERE...Lower Columbia Basin of Washington and Foothills of the Blue Mountains of Washington. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. * ADDITIONAL DETAILS...Blowing dust has developed in northern Franklin, Walla Walla, and Columbia counties between HWY395 and HWY12. Additional areas of blowing dust are expected to develop this afternoon.

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Grande Ronde Valley and Wallowa County. * WHEN...From 11 PM this evening to 9 AM PDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

The National Weather Service in Spokane has issued a * Dust Storm Warning for... Northeastern Adams County in eastern Washington... North central Whitman County in eastern Washington... Southeastern Lincoln County in eastern Washington... * Until 330 PM PDT. * At 225 PM PDT, a dust channel was 7 miles east of Ritzville, or 37 miles southwest of Cheney, moving east at 35 mph. HAZARD...Less than a quarter mile visibility. SOURCE...Trained weather spotters reported zero to one-quarter visibility 7 miles northwest of Ritzville at 140 PM. IMPACT...Dangerous life-threatening travel. * This includes the following highways... Interstate 90 in Washington between mile markers 212 and 247. U.S. Highway 395 in Washington between mile markers 94 and 96. Locations impacted include... Ritzville, Sprague, Lamont, Marcellus, Tokio, Revere, and Packard.

* WHAT...Northwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Kittitas Valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Patchy blowing dust can also be expected.