Weather Alert in Washington
Hydrologic Outlook issued March 16 at 10:06PM PDT by NWS Pendleton OR
AREAS AFFECTED: Kittitas Valley; Upper Slopes of the Eastern Washington Cascades Crest; Lower Slopes of the Eastern Washington Cascades Crest
DESCRIPTION: ESFPDT Moderate to heavy rain is expected this week along the Washington Cascade crest. With temperatures remaining above freezing at night and warming into the lower to mid 40s during the day increased snowmelt is expected as well. The rain and snow melt will increase water levels in rivers and streams flowing off the Cascades. The Naches River at Naches is expected to rise to action stage late tonight and then above minor flood stage on Friday. The Naches at Cliffdell, the Yakima River at Easton and the Yakima River at Umtanum are forecast to rise above action stage at various times from Thursday through Friday but are not expected to reach minor flood stage. Please monitor the latest river forecasts from the National Weather Service for additional information.
INSTRUCTION: N/A
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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