Weather Alert in California
Special Weather Statement issued July 30 at 10:55AM PDT by NWS San Francisco CA
AREAS AFFECTED: San Francisco; Coastal North Bay Including Point Reyes National Seashore; North Bay Interior Valleys; San Francisco Bay Shoreline; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
DESCRIPTION: ...TSUNAMI ADVISORY HAS BEEN CANCELED FOR THE BAY AREA COASTLINE FROM SONOMA COUNTY SOUTHWARD TO MONTEREY INCLUDING SAN FRANCISCO AND AND MONTEREY BAYS... * UPDATES...Some areas may continue to experience small sea level changes. Local conditions can cause a wide variation in wave action. Dangerous currents and fast tidal swings will persist through today. These conditions are hazardous to swimmers, boats, and coastal structures. * OBSERVED TSUNAMI WAVE HEIGHTS FROM EARLIER... San Francisco 1.2 ft at 0224 AM PDT on Jul 30 Point Reyes California 2.6 ft at 0423 AM PDT on Jul 30 Monterey California 1.5 ft at 0424 AM PDT on Jul 30 Richmond California 0.8 ft at 0241 AM PDT on Jul 30 Alameda California 1.2 ft at 0247 AM PDT on Jul 30 Redwood City California 0.6 ft at 0425 AM PDT on Jul 30 This will be the final statement issued for the local area for this event.
INSTRUCTION: N/A
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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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