WA WFO PORTLAND Warnings, Watches, and Advisories

WFO PORTLAND Warnings, Watches and Advisories for Saturday, August 6, 2022

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FIRE WEATHER WATCH

URGENT - FIRE WEATHER MESSAGE

National Weather Service Portland OR

246 PM PDT Fri Aug 5 2022

...HOT...VERY DRY...AND INCREASINGLY UNSTABLE CONDITIONS EXPECTED

THIS WEEKEND NEAR THE COLUMBIA GORGE AND WILLAMETTE VALLEY...

...BREEZY OFFSHORE FLOW SATURDAY AFTERNOON THROUGH SUNDAY MORNING...

.Offshore flow is beginning to develop across Southwest Washington

and Northwest Oregon today, which will eventually bring hot and

very dry air into the region for the weekend. North to northeast

winds will increase Saturday afternoon, turning more easterly

Saturday night and Sunday. Thermal low pressure will build over

the Willamette Valley and Cascades Saturday, and will enhance

instability while crossing back over the Cascades on Sunday.

...FIRE WEATHER WATCH IN EFFECT FROM LATE SATURDAY MORNING

THROUGH SATURDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR

FIRE WEATHER ZONES 604 AND 667...

The National Weather Service in Portland has issued a Fire

Weather Watch for wind and low relative humidity, which is in

effect from late Saturday morning through Saturday evening.

* AFFECTED AREA...

In Oregon,

Fire Weather Zone 604 - Willamette Valley.

In Washington,

Fire Weather Zone 667 - Clark County Lowlands.

* WINDS...North 10 to 15 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 15 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions

are forecast to occur. Listen for later forecasts and possible

Red Flag Warnings.

THROUGH SUNDAY EVENING FOR WIND, LOW RELATIVE HUMIDITY, AND

INCREASINGLY UNSTABLE CONDITIONS FOR FIRE WEATHER ZONES 605, 607,

AND 660...

Weather Watch for wind, low relative humidity, and increasingly

unstable conditions, which is in effect late Saturday morning

through Sunday.

Fire Weather Zone 605 - North Oregon Cascade Foothills.

Fire Weather Zone 607 - Mt. Hood National Forest West of

Cascade Crest.

Fire Weather Zone 660 - Extreme South Washington

Cascades and Foothills.

* WINDS...Northeast 5 to 15 mph with gusts up to 25 mph.

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