Weather Alert in California
Special Weather Statement issued February 18 at 4:58AM PST by NWS Eureka CA
AREAS AFFECTED: Southwestern Humboldt
DESCRIPTION: At 458 AM PST, Doppler radar was tracking a strong shower 5 miles southwest of Petrolia, or 11 miles west of Honeydew, moving east at 25 mph. HAZARD...Hazardous conditions to motorists. SOURCE...Radar indicated. IMPACT...Accumulating small hail over roadways and hazardous conditions to motorists. Locations impacted include... Honeydew and Petrolia and Mattole Rd.
INSTRUCTION: Exercise caution when driving over small hail. Small hail can quickly accumulate on roadways resulting in slippery conditions. Go easy on brakes and steering to avoid spin-outs.
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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
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