…WIDESPREAD BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY
SATURDAY…
…HIGH-BASED SHOWERS AND THUNDERSTORMS TONIGHT AND SATURDAY
ALONG THE WASHINGTON CASCADES AND BLUE MOUNTAINS…
.An approaching low-pressure system will bring widespread breezy
westerly winds through the Cascade gaps, across the Columbia
Basin, and into portions of the Blue Mountains Saturday. Coupled
with low relative humidity, this will lead to critical fire
weather conditions. Moreover, high-based showers and
thunderstorms are forecast, with the best chances of abundant
lightning overnight through Saturday morning along the Washington
Cascades and Saturday afternoon for the northeast Blue Mountains.
…RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR691,
OR703, WA690, AND WA691…
The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from noon to 10 PM PDT Saturday. The Fire Weather Watch is no
longer in effect.
* AFFECTED AREA…Fire Weather Zones 690 Kittitas Valley, 691
Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of
Washington and 703 Warm Springs Reservation.
* TIMING…From noon to 10 PM PDT Saturday.
* WINDS…West 15 to 25 mph with gusts of 25 to 40 mph.
* RELATIVE HUMIDITY…15 to 25 percent in the afternoon.
* IMPACTS…Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.
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