Weather Alert in California
Heat Advisory issued June 16 at 9:56PM PDT until June 18 at 8:00PM PDT by NWS San Diego CA
AREAS AFFECTED: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; San Diego County Mountains
DESCRIPTION: * WHAT...Temperatures up to 96. * WHERE...Riverside County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Mountains, and San Diego County Valleys. * WHEN...Until 8 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses.
INSTRUCTION: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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North America Water Vapor (Moisture)
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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