Weather Alert in Utah
Flood Warning issued August 26 at 7:18PM MDT until August 26 at 8:45PM MDT by NWS Grand Junction CO
AREAS AFFECTED: San Juan, UT
DESCRIPTION: * WHAT...Small stream and arroyo flooding caused by excessive rainfall is occurring. * WHERE...A portion of southeast Utah, including the following county, San Juan along Highway 163 from the Arizona border to Bluff. * WHEN...Until 845 PM MDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. * ADDITIONAL DETAILS... - At 718 PM MDT, trained weather spotters reported slow moving thunderstorms with very heavy rainfall across the warned area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.2 to 0.5 inches are possible in the warned area. - Some locations that will experience flooding include... Mexican Hat, Halchita, Goulding, Tselakai Dezza, Bluff and Oljeto and areas along Highways 163 and 261. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging currents in a matter of minutes, even from distant rainfall.
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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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