Interactive NWS Alert
Radar valid at 1000 pm PDT, Jul 21st 2021
...LIGHTNING WITH THUNDERSTORMS AND DRY AND BREEZY CONDITONS WILL
BRING CRITICAL FIRE WEATHER CONDITIONS THROUGH WEDNESDAY...
.There will be multiple fire weather hazards resulting in critical
fire weather conditions through Wednesday evening. Two rounds of
lightning with the first moving through Tuesday morning and the
next expected Tuesday night into Wednesday morning. Both rounds of
thunderstorms will occur over eastern districts in Washington and
north Idaho. Areas near the east slopes of the Cascades will see
gusty winds and low relative humidity this afternoon into the
early evening. A cold front Wednesday afternoon will deliver
gusty winds with low relative humidity for much of the region.
East Washington Northeast (Zone 686)-
350 AM PDT Tue Jul 20 2021
...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM PDT WEDNESDAY FOR
THUNDERSTORMS FOLLOWED BY WIND WITH LOW RELATIVE HUMIDITY FOR EAST
* Affected Area: Fire Weather Zone 686 East Washington Northeast
* Thunderstorms: Isolated thunderstorms this morning. A second
lightning event with scattered thunderstorms late Tuesday Night
and Wednesday morning. Brief rain expected with thunderstorms.
* Winds: West to southwest 5 to 15 mph with gusts up to 20 mph on
Tuesday increasing on Wednesday 10 to 20 mph with gusts to
around 25 mph. Gusty outflow winds are possible near
* Relative Humidities: 13 to 18 percent in the valleys and 17 to
25 percent in the mountains for Tuesday and on Wednesday, 10 to
17 percent in valleys and 15 to 23 percent in the mountains.
* Impacts: Thunderstorms containing only light rain amounts may
lead to several new fire starts. Breezy winds may lead to fire
spread of any new or existing fires especially on Wednesday.
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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