Weather Alert in California
Special Weather Statement issued June 8 at 1:24PM PDT by NWS Hanford CA
AREAS AFFECTED: Yosemite NP outside of the valley; Yosemite Valley; Upper San Joaquin River
DESCRIPTION: At 124 PM PDT, Doppler radar was tracking a strong thunderstorm 8 miles south of Yosemite Valley, or 9 miles northeast of Yosemite South Entrance, moving west at 10 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Yosemite Valley, Little Yosemite Valley Campground, Morraine Dome Campground, Camp 4 Campground, North Pines Campground, Buck Camp Ranger Station, Yosemite Glacier Point, Ostrander Lake, Bridalveil Creek Campground, Little Yosemite Valley Ranger Station, Yosemite Valley Vistor Center, Lower Pines Campground, and Upper Pines Campground.
INSTRUCTION: If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service.
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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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