Weather Alert in Arizona
Severe Thunderstorm Warning issued August 25 at 5:27PM MST until August 25 at 6:15PM MST by NWS Phoenix AZ
AREAS AFFECTED: Maricopa, AZ
DESCRIPTION: SVRPSR The National Weather Service in Phoenix has issued a * Severe Thunderstorm Warning for... Maricopa County in south central Arizona... * Until 615 PM MST. * At 526 PM MST, a severe thunderstorm was located over Queen Creek, or 7 miles southeast of Gilbert, moving northwest at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Mesa, Chandler, Gilbert, Tempe, Gilbert City Hall, Downtown Mesa, Tumbleweed Park, Chandler City Hall, San Tan Village Mall, Freestone Park, Fiesta Mall, Phoenix Mesa Gateway Airport, and Higley. This includes the following highways... US Highway 60 between mile markers 178 and 188. AZ Route 87 between mile markers 164 and 173. AZ Route 202 between mile markers 35 and 49.
INSTRUCTION: For your protection move to an interior room on the lowest floor of a building.
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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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