Weather Alert in California
Extreme Heat Warning issued June 19 at 12:31PM PDT until June 19 at 10:00PM PDT by NWS Las Vegas NV
AREAS AFFECTED: Western Mojave Desert
DESCRIPTION: * WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures around 108 for Barstow-Daggett. For the Wind Advisory, west-southwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Western San Bernardino County. * WHEN...For the Extreme Heat Warning, until 10 PM PDT this evening. For the Wind Advisory, from 2 PM Friday to 11 PM PDT Saturday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events, especially when overnight low temperatures remain warm. This results in little to no time to recover from the heat. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Winds this strong can make driving difficult, especially for high-profile vehicles. Use extra caution. Monitor the latest forecasts and warnings for updates.
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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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