Weather Alert in Washington
Hydrologic Outlook issued March 18 at 2:55PM 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 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 remain above action stage then rise above minor flood stage Friday afternoon through Sunday morning. The Naches River at Cliffdell and the Yakima River at Umtanum are expected to remain above action stage through at least Sunday but are not expected to reach minor flood stage. The Yakima River at Easton is expected to rise just above action stage Friday night and Saturday morning. Please monitor the latest river forecasts from the National Weather Service for additional information.
INSTRUCTION: N/A
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Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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