...DRY THUNDERSTORMS EXPECTED TODAY AND WEDNESDAY OVER CENTRAL
AND EASTERN OREGON, WITH DRY AND WINDY CONDITIONS ACROSS THE
COLUMBIA BASIN WEDNESDAY...
.The ridge of high pressure currently in place over the Pacific
Northwest will break down tonight through Wednesday as a pair of
upper-level low-pressure systems pass over the region. This will
lead to thunderstorm development across central and eastern
Oregon Tuesday afternoon and evening, and across eastern Oregon
Wednesday afternoon and evening. Widespread breezy to windy
conditions will persist this evening through Wednesday, strongest
through the Cascade gaps and Columbia Basin on Wednesday with a
frontal passage.
* AFFECTED AREA...Fire Weather Zones 691 Lower Columbia Basin of
Oregon and 691 Lower Columbia Basin of Washington.
* TIMING...From 11 AM to 10 PM PDT Wednesday.
* WINDS...West 20 to 30 mph with gusts up to 40 mph.
* RELATIVE HUMIDITY...As low 18 to 23 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
...DRY THUNDERSTORMS EXPECTED TODAY AND WEDNESDAY OVER CENTRAL
AND EASTERN OREGON, WITH DRY AND WINDY CONDITIONS ACROSS THE
COLUMBIA BASIN WEDNESDAY...
.The ridge of high pressure currently in place over the Pacific
Northwest will break down tonight through Wednesday as a pair of
upper-level low-pressure systems pass over the region. This will
lead to thunderstorm development across central and eastern Oregon
Tuesday afternoon and evening, and across eastern Oregon Wednesday
afternoon and evening. Widespread breezy to windy conditions will
persist this evening through Wednesday, strongest through the
Cascade gaps and Columbia Basin on Wednesday with a frontal
passage.
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from 11 AM to
10 PM PDT Wednesday. The Fire Weather Watch is no longer in
effect.
* AFFECTED AREA...Fire Weather Zones 691 Lower Columbia Basin of
Oregon and 691 Lower Columbia Basin of Washington.
* TIMING...From 11 AM to 10 PM PDT Wednesday.
* WINDS...West 20 to 30 mph with gusts up to 40 mph.
* RELATIVE HUMIDITY...As low 18 to 23 percent.
* IMPACTS...Any fire that develops will catch and spread quickly.
Outdoor burning is not recommended.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Colville Reservation (Zone 702), Okanogan
Valley (Zone 703), Foothills of Central Washington Cascades
(Zone 705) and Waterville Plateau (Zone 706).
* Winds: Tuesday: West 15 to 20 mph with gusts to 25 mph
increasing to 30 mph in the evening. Wednesday: West 20 to 30
mph with gusts up to 40 mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 27
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Foothills of Northeast Washington (Zone 701).
* Winds: Southwest 10 to 20 mph with gusts up to 30 mph.
* Relative Humidities: 20 to 28 percent.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Western Columbia Basin (Zone 707), Eastern
Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower
Palouse -Snake River (Zone 709).
* Winds: Tuesday: West to southwest 10 to 20 mph with gusts to 25
mph. Wednesday: West to southwest 15 to 25 mph gusts around 40
mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 25
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
until 10 PM PDT this evening.
* Affected Area: Methow Valley (Zone 704).
* Winds: Southeast 5 to 10 mph becoming west 10 to 15 mph with
gusts up to 30 mph in the afternoon.
* Relative Humidities: 10 to 17 percent.
* Impacts: Rapid fire spread is likely with any new fires.
...DRY THUNDERSTORMS EXPECTED TUESDAY OVER CENTRAL AND EASTERN
OREGON, FOLLOWED BY DRY AND WINDY CONDITIONS ACROSS THE COLUMBIA
BASIN WEDNESDAY...
.The ridge of high pressure currently in place over the Pacific
Northwest will break down Tuesday night through Wednesday as a
pair of upper-level low-pressure systems pass over the region.
This will lead to thunderstorm development across central and
eastern Oregon Tuesday afternoon and evening. Widespread breezy
to windy conditions will persist Tuesday evening through
Wednesday, strongest through the Cascade gaps and Columbia Basin.
* AFFECTED AREA...Fire Weather Zones 691 Lower Columbia Basin of
Oregon and 691 Lower Columbia Basin of Washington.
* TIMING...From Wednesday morning through Wednesday evening.
* WINDS...West 20 to 30 mph with gusts up to 40 mph.
* RELATIVE HUMIDITY...As low as 15 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Colville Reservation (Zone 702), Okanogan
Valley (Zone 703), Foothills of Central Washington Cascades
(Zone 705) and Waterville Plateau (Zone 706).
* Winds: Tuesday: West 15 to 20 mph with gusts to 25 mph
increasing 30 mph in the evening. Wednesday: West 20 to 30 mph
with gusts up to 40 mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 27
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Western Columbia Basin (Zone 707), Eastern
Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower
Palouse -Snake River (Zone 709).
* Winds: Tuesday: West to southwest 10 to 20 mph with gusts to 25
mph. Wednesday: West to southwest 15 to 25 mph gusts around 40
mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 25
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
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 8 PM PDT Wednesday.
* Affected Area: Foothills of Northeast Washington (Zone 701).
* Winds: Southwest 10 to 20 mph with gusts up to 30 mph.
* Relative Humidities: 20 to 28 percent.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Okanogan Valley (Zone 703), Foothills of
Central Washington Cascades (Zone 705) and Waterville Plateau
(Zone 706).
* Winds: Tuesday: West 15 to 20 mph with gusts to 25 mph
increasing 30 mph in the evening. Wednesday: West 20 to 30 mph
with gusts up to 40 mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 27
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
* Affected Area: Western Columbia Basin (Zone 707), Eastern
Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower
Palouse -Snake River (Zone 709).
* Winds: Tuesday: West to southwest 10 to 20 mph with gusts to 25
mph. Wednesday: West to southwest 15 to 25 mph gusts around 40
mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 25
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. Winds will decrease Tuesday night. A dry cold front will
sweep through the region on Wednesday delivering stronger winds
region- wide. Humidity levels increase on Wednesday but remain
near critical levels.
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 1 PM Tuesday to 8 PM PDT Wednesday.
* Affected Area: Colville Reservation (Zone 702).
* Winds: Tuesday: Southwest to west 15 to 20 mph with gusts to 25
mph increasing 30 mph in the evening. Wednesday: West 20 to 30
mph with gusts up to 40 mph.
* Relative Humidities: 10 to 15 percent on Tuesday. 22 to 27
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...DRY THUNDERSTORMS EXPECTED FOR TUESDAY IN CENTRAL OREGON,
FOLLOWED BY DRY AND WINDY CONDITIONS ACROSS THE COLUMBIA BASIN
WEDNESDAY...
.A high pressure ridge will allow temperatures to heat up and RHs
to drop through Tuesday, before an upper-level low lifts through
the region Tuesday night into Wednesday. This low will lead to
thunderstorm development across central Oregon starting Tuesday
afternoon, followed by gusty conditions in the front's wake on
Wednesday.
The National Weather Service in Pendleton has issued a Fire
Weather Watch for abundant lightning, which is in effect from
Wednesday morning through Wednesday evening.
* AFFECTED AREA...Fire Weather Zones 691 Lower Columbia Basin of
Oregon and 691 Lower Columbia Basin of Washington.
* TIMING...From Wednesday morning through Wednesday evening.
* WINDS...West 15 to 20 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 18 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. A dry cold front will sweep through the region on
Wednesday delivering stronger winds region-wide. Humidity levels
increase on Wednesday but remain near critical levels.
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 1 PM Tuesday to 8 PM PDT Wednesday. The Fire Weather Watch
is no longer in effect.
* Affected Area: Western Columbia Basin (Zone 707), Eastern
Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower
Palouse -Snake River (Zone 709).
* Winds: Tuesday: West to southwest 10 to 20 mph with gusts to 25
mph. Wednesday: West to southwest 15 to 25 mph gusts around 40
mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 25
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
...HOT, DRY, AND WINDY TUESDAY AND WEDNESDAY...
.Hot and very dry conditions will be in place on Tuesday. Winds
will increase through the day with gusts 15 to 25 mph from the
East Slopes to the Palouse. Locally stronger winds will develop
late Tuesday afternoon and evening in the foothills of the
Cascades and across the Waterville Plateau producing gusts around
30 mph. A dry cold front will sweep through the region on
Wednesday delivering stronger winds region-wide. Humidity levels
increase on Wednesday but remain near critical levels.
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 1 PM Tuesday to 8 PM PDT Wednesday. The Fire Weather Watch
is no longer in effect.
* Affected Area: Okanogan Valley (Zone 703), Foothills of
Central Washington Cascades (Zone 705) and Waterville Plateau
(Zone 706).
* Winds: Tuesday: West 15 to 20 mph with gusts to 25 mph
increasing 30 mph in the evening. Wednesday: West 20 to 30 mph
with gusts up to 40 mph.
* Relative Humidities: 8 to 15 percent on Tuesday. 18 to 27
percent on Wednesday.
* Impacts: Rapid fire spread is likely with any new fires.
* WHAT...Hot conditions with temperatures up to 105 degrees
expected. This will pose a major risk of heat-related illness.
* WHERE...Lower Columbia Basin of Oregon and Washington, Foothills
of the Northern Blue Mountains of Oregon, Yakima Valley, and
Foothills of the Blue Mountains of Washington.
* WHEN...From 11 AM to 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. Extreme heat
will significantly increase the risk of heat-related illnesses for
much of the population, especially those who are heat sensitive
and those without effective cooling or adequate hydration.