Weather Alert in California
Special Weather Statement issued July 30 at 2:39PM 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
DESCRIPTION: ...ALL TSUNAMI ADVISORIES HAVE BEEN CANCELLED... * UPDATES... All Tsunami Advisories have been cancelled. However, tidal fluctuations and enhanced currents will continue for the next few days. * LOCAL IMPACTS... While the tsunami is expected to remain below advisory criteria, strong currents will pose a risk for ocean swimmers. * RECOMMENDED ACTIONS... If you are located in this coastal area, check in with local lifeguards before entering the water. Be alert to instructions from your local emergency officials. * OBSERVED TSUNAMI WAVE HEIGHTS FROM EARLIER... Port San Luis California 2.7 ft at 0214 AM PDT on Jul 30 Santa Barbara California 1.5 ft at 0706 AM PDT on Jul 30 Santa Monica California 1.2 ft at 0827 AM PDT on Jul 30 Los Angeles Harbor CA 0.5 ft at 0546 AM PDT on Jul 30 This will be the final statement issued for the local area for this event.
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Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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