Weather Alert in Oregon
Red Flag Warning issued June 30 at 1:00PM PDT until July 1 at 9:00PM PDT by NWS Pendleton OR
AREAS AFFECTED: Central Mountains of Oregon
DESCRIPTION: ...DRY THUNDERSTORMS EXPECTED FOR CENTRAL OREGON TUESDAY, FOLLOWED BY DRY AND WINDY CONDITIONS ACROSS THE KITTITAS VALLEY AND WASHINGTON BASIN WEDNESDAY... .The high pressure currently leading to hot and dry conditions will start to break down Tuesday into Wednesday, allowing for dry thunderstorms to develop across central Oregon. Once high pressure has completely broken down on Wednesday, winds will pick up. With RHs having little time to recover from Monday and Tuesday's heat, this will lead to potentially critical fire weather conditions across the Kittitas Valley and into the Washington Columbia Basin. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect from 2 PM to 9 PM PDT Tuesday. * AFFECTED AREA...Fire Weather Zone 700 Central Mountains of Oregon. * TIMING...From 2 PM to 9 PM PDT Tuesday. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * RAINFALL AMOUNTS...Storms are mostly expected to be dry, with rainfall amounts less than a tenth of an inch. A few isolated storm cells could produce rainfall amounts of 0.1 to 0.2 inches. * OUTFLOW WINDS...As high as 45 mph.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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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
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
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