Weather Alert in Oregon
Hydrologic Outlook issued March 12 at 2:09PM PDT by NWS Pendleton OR
AREAS AFFECTED: Wallowa County; Northern Blue Mountains of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Blue Mountains of Washington; Simcoe Highlands; Upper Slopes of the Eastern Washington Cascades Crest; Lower Slopes of the Eastern Washington Cascades Crest
DESCRIPTION: ESFPDT Heavy rain and mountain snow through Friday evening followed by unusually warm temperatures this weekend will lead to high water levels on many mountain streams and rivers. Currently the Grande Ronde River at Troy, the Umatilla River at Gibbon, the Walla Walla River at Touchet, The Klickitat River near Pitt and the Naches River at Naches are all forecast to reach Action Stage by Friday evening and continue into the weekend before receding in the late weekend or early next week. At this time, these locations are not expected to reach minor flood stage. Other streams and rivers will have rises but remain within their banks. There is some uncertainty in the rain and snow amounts through tomorrow and temperatures this weekend but confidence in river levels is good (60-80%). Additionally, water temperatures have dropped to the lower 40s, so the chances of hypothermia will be increased for anyone falling into rivers or streams.
INSTRUCTION: N/A
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Current conditions powered by WeatherAPI.com
