Weather Alert in California
Special Weather Statement issued July 29 at 8:07PM PDT by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Catalina and Santa Barbara Islands; San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches; San Miguel and Santa Rosa Islands; Santa Cruz and Anacapa Islands
DESCRIPTION: ...TSUNAMI ADVISORY IS IN EFFECT FOR THE FOLLOWING LOCATIONS, ALL COASTAL AREAS OF LOS ANGELES...VENTURA...SANTA BARBARA...AND SAN LUIS OBISPO COUNTIES... * UPDATES... There have been no significant changes since the last statement. * LOCAL IMPACTS... A tsunami capable of producing strong currents that may be hazardous to swimmers, boats, and coastal structures is expected. Widespread inundation is NOT expected. However, damage at the harbors will be possible. Surging water in and out of harbors can cause boats and docks to detach from structures. Port San Luis and Morro Bay will be of particular concern for these impacts, however other locations anywhere in the Advisory area will be susceptible to impacts including coastal flooding. * RECOMMENDED ACTIONS... If you are located in this coastal area, move off the beach and out of harbors and marinas. Do not go to the coast to watch the tsunami. Be alert to instructions from your local emergency officials * FORECAST TSUNAMI START TIMES... Port San Luis California 1235 AM PDT on Jul 30 Santa Barbara California 1245 AM PDT on Jul 30 Los Angeles California 0100 AM PDT on Jul 30 Tsunamis often arrive as a series of waves or surges which could be dangerous for many hours after the first wave arrival. The first tsunami wave or surge may not be the highest in the series. * FORECAST TSUNAMI DURATION... Port San Luis California 24 hrs Santa Barbara California 9 hrs * FORECAST PEAK TSUNAMI WAVE HEIGHTS... Port San Luis California 2.0 to 3.8 ft Santa Barbara California 0.7 to 1.3 ft Los Angeles California less than 1 ft * PRELIMINARY EARTHQUAKE INFORMATION... An earthquake occurred with a preliminary magnitude of 8.8. * TIDE INFORMATION... Port San Luis...Low tide of 2.0 ft at 831 PM PDT on Jul 29. High tide of 3.9 ft at 201 AM PDT on Jul 30. Santa Barbara...Low tide of 2.1 ft at 756 PM PDT on Jul 29. High tide of 3.9 ft at 129 AM PDT on Jul 30. Los Angeles...Low tide of 2.0 ft at 728 PM PDT on Jul 29. High tide of 4.0 ft at 101 AM PDT on Jul 30. This product will be updated as new information becomes available. Stay tuned to your local news source and NOAA weather radio for further information and updates.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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