Fire Weather Warning:
Issued at: 6:09 am PDT on August 29, 2015, expires at: 7:00 PM PDT on August 29, 2015
...Red flag warning remains in effect from 11 am this morning to
7 PM PDT this evening for wind and low relative humidity for
northern Washington and north Idaho...
- affected area: fire weather zone 101 northern and central
Idaho Panhandle (zone 101)...fire weather zone 673 East
Washington northern Columbia Basin (zone 673)...fire weather
zone 674 East Washington Palouse and Spokane area (zone 674)...
fire weather zone 677 East Washington central Cascade valleys
(zone 677)... fire weather zone 684 East Washington
Okanogan/Methow valleys (zone 684)...fire weather zone 686
East Washington northeast (zone 686) and fire weather zone 687
East Washington Okanogan Highlands (zone 687).
- Winds: southwest 25 to 35 mph with gusts 45 to 60 mph. Gusts
as high as 65 mph in the mountains.
Except in fire weather zone 677 winds southwest 15 to 25 mph
with gusts of 35 to 55 mph. Mountain wave activity in the Lee
of Mission Ridge could result in isolated stronger gusts.
Strongest sustained winds expected along the Columbia River
between Entiat...Chelan and Pateros.
- Relative humidities: 20 to 30 percent in the valleys. 30 to 40
percent in the mountains.
- Impacts: very windy conditions and low relative humidities will
result in rapid growth of existing fires or any new ignitions.
A red flag warning means that critical fire weather conditions
will develop today. The very strong winds coupled with the lower
relative humidity will create extreme fire growth potential.
High Wind Watch:
Issued at: 2:57 PM PDT on August 28, 2015, expires at: 8:00 PM PDT on August 29, 2015
...High wind watch remains in effect from Saturday morning
through Saturday evening...
- winds...southwest 25 to 35 mph with gusts of 50 to 65 mph.
- Timing...winds will increase Saturday morning and peak by the
early afternoon hours. Winds will relax late Saturday evening.
- Impacts...high winds may result in in toppled trees and downed
power lines. Strong cross winds will result in hazardous
travel for high profile vehicles...especially along Interstate
90 and along Highway 2. Winds will also produce blowing dust
across the basin into the surrounding valleys. Blowing dust
may result in visibility reduced to one quarter mile at times.
A high wind watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest