* WHAT...Sub-freezing temperatures as low as 31 expected Sunday
morning.
* WHERE...Northport, Metaline Falls, Metaline, Newport, Chewelah,
Colville, Deer Park, Ione, Kettle Falls, Fruitland, and Tiger.
* WHEN...Until 8 AM PDT Sunday.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
* ADDITIONAL DETAILS...This will be the first significant
freeze/frost at the end of the growing season. The growing season
will be extended with warmer than average temperatures returning
next week.
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Sandpoint, Athol, Clark Fork, Priest River, Plummer,
Colfax, Oakesdale, Uniontown, Wallace, Pinehurst, Rosalia, Osburn,
Fernwood, Tekoa, Bonners Ferry, St. Maries, Mullan, La Crosse,
Potlatch, Genesee, Kellogg, Pullman, Moscow, and Eastport.
* WHEN...Until 8 AM PDT Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Sandpoint, St. Maries, Wallace, Colfax, Plummer, Osburn,
Potlatch, Mullan, Kellogg, Eastport, Uniontown, Priest River,
Genesee, Pullman, Oakesdale, Rosalia, Tekoa, Pinehurst, Clark
Fork, Bonners Ferry, Athol, La Crosse, Moscow, and Fernwood.
* WHEN...From 2 AM Saturday to 8 AM PDT Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Sub-freezing temperatures as low as 28 expected Saturday
morning and as low as 31 expected Sunday morning.
* WHERE...Metaline Falls, Tiger, Northport, Deer Park, Metaline,
Chewelah, Kettle Falls, Colville, Fruitland, Ione, Newport, and
Orin-Rice Road.
* WHEN...From 2 AM Saturday to 8 AM PDT Sunday.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
* ADDITIONAL DETAILS...This will be the first significant
freeze/frost at the end of the growing season. The growing season
will be extended with warmer than average temperatures returning
next week.
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Harrington, Spokane Valley, Post Falls, Coeur d'Alene,
Grand Coulee, Airway Heights, Rockford, Downtown Spokane, Creston,
Ritzville, Wilbur, Cheney, Fairfield, Odessa, Hayden, Coulee City,
Davenport, and Worley.
* WHEN...From 2 AM to 8 AM PDT Saturday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Inchelium, Boulder Creek Road, Highway 20 Wauconda Summit,
Sherman Pass, Republic, Chesaw Road, and Wauconda.
* WHEN...From 2 AM to 8 AM PDT Saturday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Temperatures as low as 35 will result in frost formation.
* WHERE...Plummer, Kellogg, Colfax, Tekoa, Osburn, Oakesdale,
Pullman, Moscow, St. Maries, Pinehurst, Fernwood, Wallace,
Rosalia, La Crosse, Potlatch, Mullan, Genesee, and Uniontown.
* WHEN...From 2 AM Saturday to 8 AM PDT Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Sub-freezing temperatures as low as 28 expected Saturday
morning and as low as 31 expected Sunday morning.
* WHERE...Ione, Tiger, Metaline Falls, Colville, Kettle Falls,
Northport, Deer Park, Fruitland, Metaline, Chewelah, and Newport.
* WHEN...From 2 AM Saturday to 8 AM PDT Sunday.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
* ADDITIONAL DETAILS...This will be the first significant
freeze/frost at the end of the growing season. The growing season
will be extended with warmer than average temperatures returning
next week.
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Coeur d'Alene, Wilbur, Spokane Valley, Post Falls, Hayden,
Worley, Airway Heights, Harrington, Davenport, Fairfield, Creston,
Rockford, Cheney, and Odessa.
* WHEN...From 2 AM to 8 AM PDT Saturday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Republic, Wauconda, and Inchelium.
* WHEN...From 2 AM to 8 AM PDT Saturday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Sub-freezing temperatures as low as 28 possible.
* WHERE...Priest River, Athol, Wauconda, Metaline Falls, Sandpoint,
Eastport, Tiger, Kettle Falls, Ione, Clark Fork, Northport,
Newport, Metaline, Colville, Inchelium, Bonners Ferry, Chewelah,
Deer Park, Fruitland, Republic.
* WHEN...From late Friday night through Sunday morning.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
* WHAT...Sub-freezing temperatures as low as 28 possible.
* WHERE...Chewelah, Inchelium, Metaline Falls, Tiger, Eastport,
Ione, Deer Park, Wauconda, Athol, Priest River, Republic,
Colville, Clark Fork, Newport, Metaline, Fruitland, Northport,
Sandpoint, Kettle Falls.
* WHEN...From late Friday night through Sunday morning.
* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation.
...DRY AND BREEZY MONDAY AFTERNOON AND EARLY EVENING...
* Affected Area: Fire Weather Zone 708 Eastern Columbia Basin -
Palouse -Spokane Area (Zone 708) and Fire Weather Zone 709
Lower Palouse -Snake River (Zone 709).
* Winds: Southwest 10 to 15 mph with gusts up to 25 mph.
* Relative Humidities: 15 to 22 percent.
* Impacts: Risk of rapidly spreading wildfires.
...DRY AND BREEZY MONDAY AFTERNOON AND EARLY EVENING...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from noon to 7 PM PDT Monday. The Fire Weather Watch is no longer
in effect.
* Affected Area: Fire Weather Zone 708 Eastern Columbia Basin -
Palouse -Spokane Area (Zone 708) and Fire Weather Zone 709
Lower Palouse -Snake River (Zone 709).
* Winds: Southwest 10 to 20 mph with gusts up to 30 mph.
* Relative Humidities: 14 to 21 percent.
* Impacts: Risk of rapidly spreading fires.
...ISOLATED TO SCATTERED THUNDERSTORMS TODAY...
.Isolated to scattered thunderstorms continue to be possible this
afternoon across the Blue/Strawberry/Wallowa Mountains through
the evening hours.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon, 645 Wallowa District, 692 Blue Mountains of
Washington and 693 Southeast Washington Grande Ronde Valley.
* IMPACTS...New fire starts and rapid fire spread due to cloud-
to-ground lightning and gusty outflow winds.
* THUNDERSTORMS...Isolated to scattered thunderstorms producing
abundant lightning and gusty outflow winds. Most storms will
be accompanied by light rain.
* OUTFLOW WINDS...Outflow winds are always possible with storms,
and these storms will be capable of producing wind gusts of 30
to 45 mph.
...ISOLATED TO SCATTERED THUNDERSTORMS TODAY...
.Isolated to scattered thunderstorms are expected through afternoon
across the Blue Mountains, adjacent foothills, and portions of the
Columbia Basin as a weather system moves over the region.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon, 645 Wallowa District, 692 Blue Mountains of
Washington and 693 Southeast Washington Grande Ronde Valley.
* IMPACTS...New fire starts and rapid fire spread due to cloud-
to-ground lightning and gusty outflow winds.
* THUNDERSTORMS...Isolated to scattered thunderstorms producing
abundant lightning and gusty outflow winds. Most storms will
be accompanied by light rain.
* OUTFLOW WINDS...Outflow winds are always possible with storms,
and these storms will be capable of producing wind gusts of 30
to 45 mph.
...DRY AND BREEZY MONDAY AFTERNOON AND EARLY EVENING...
The National Weather Service in Spokane has issued a Fire Weather
Watch for wind and low relative humidity, which is in effect from
Monday afternoon through Monday evening.
* Affected Area: Fire Weather Zone 708 Eastern Columbia Basin -
Palouse -Spokane Area (Zone 708) and Fire Weather Zone 709
Lower Palouse -Snake River (Zone 709).
* Winds: Southwest 10 to 20 mph with gusts up to 30 mph.
* Relative Humidities: 14 to 22 percent.
* Impacts: Risk of rapidly spreading fires.
...ISOLATED TO SCATTERED THUNDERSTORMS TODAY...
.Isolated thunderstorms have initiated across the southern Blue
Mountains this morning. Additional development is expected through
morning and afternoon across the Blue Mountains as a weather
system moves over the region.
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect until 11 PM
PDT this evening. The Fire Weather Watch is no longer in effect.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon, 645 Wallowa District, 692 Blue Mountains of
Washington and 693 Southeast Washington Grande Ronde Valley.
* IMPACTS...New fire starts and rapid fire spread due to cloud-
to-ground lightning and gusty outflow winds.
* THUNDERSTORMS...Isolated to scattered thunderstorms producing
abundant lightning and gusty outflow winds. Most storms will be
accompanied by light rain.
* OUTFLOW WINDS...Outflow winds are always possible with storms,
and these storms will be capable of producing wind gusts of 30
to 45 mph.
...UNSTABLE CONDITIONS CONTINUE, WITH THUNDERSTORMS DEVELOPING
ONCE AGAIN TONIGHT AND SUNDAY...
.Unstable conditions will persist once again tomorrow, before an
oncoming weather system shifts the threat from instability to that
of thunderstorms. Storms are expected to develop over the eastern
mountains tomorrow afternoon as well, however forecast confidence
remains on the lower end, so will hold off on upgrading the watch
there for now.
* AFFECTED AREA...Fire Weather Zones 643 Northern Blue Mountains
of Oregon, 644 Central Blue Mountains, 645 Wallowa District,
692 Blue Mountains of Washington and 693 Southeast Washington
Grande Ronde Valley.
* IMPACTS...New fire starts and rapid fire spread due to outflow
winds.
* THUNDERSTORMS...Scattered thunderstorms producing abundant
lightning and gusty outflow winds. Most storms will be
accompanied by light rain.
* OUTFLOW WINDS...Outflow winds are always possible with storms,
and these storms will be capable of 30 to 40 mph wind gusts.
...15-30% CHANCE OF THUNDERSTORMS PRODUCING DRY LIGHTNING SATURDAY
AFTERNOON AND EVENING...
* AFFECTED AREA...In Oregon, Fire Weather Zone 688 Mt. Hood
National Forest Region. In Washington, Fire Weather Zone 634
Southern Gifford Pinchot National Forest and Fire Weather Zone
635 Mt. Adams Ranger District of the Gifford-Pinchot National
Forest.
* WINDS...Southeast 5 to 10 mph with gusts up to 15 mph. Brief and
highly localized outflow wind gusts up to 40 mph possible with
any shower or thunderstorm that passes by.
* RELATIVE HUMIDITY...As low as 20 percent.
* IMPACTS...Conditions may be favorable for rapid fire spread
which may threaten life and property. Use extra caution with
potential ignition sources, especially in grassy areas.
Outdoor burning is not recommended.
* ADDITIONAL DETAILS...There is a 15-30% chance of thunderstorms
through 8 PM PDT Saturday over the Cascade mountains. Very
little to no rainfall will accompany any thunderstorm that does
develop, increasing the potential for dry lightning igniting new
wildfire starts.
