Weather Alert in Oregon
Extreme Heat Watch issued August 21 at 12:08PM PDT until August 27 at 9:00PM PDT by NWS Pendleton OR
AREAS AFFECTED: Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Eastern Columbia River Gorge of Washington; Kittitas Valley; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington; Simcoe Highlands; Lower Slopes of the Eastern Washington Cascades Crest
DESCRIPTION: * WHAT...Dangerously hot conditions with high temperatures of 95 to 105 degrees possible. This will pose a major to extreme risk of heat-related illness. * WHERE...Portions of north central and northeast Oregon and central, south central, and southeast Washington. * WHEN...From Saturday afternoon through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Extreme heat will significantly increase the risk of heat-related illnesses for much of the population, especially those who are heat sensitive and those without effective cooling or adequate hydration.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Monitor the latest forecasts and warnings for updates.
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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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