Weather Alert in Texas
Flood Advisory issued August 21 at 4:59PM CDT until August 21 at 8:00PM CDT by NWS San Angelo TX
AREAS AFFECTED: Mason, TX; San Saba, TX
DESCRIPTION: * WHAT...Arroyo and small stream flooding caused by excessive rainfall is expected. * WHERE...Northeastern Mason and southwest San Saba counties * WHEN...Until 800 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 459 PM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. This will cause arroyo and small stream flooding. Between 1 and 1.5 inches of rain have fallen. - Some locations that will experience flooding include... Pontotoc, Fredonia and Art. - This includes the following Low Water Crossings... Spy Rock crossing, Oak Grove crossing, Old Union crossing San Fernando Creek, Vater crossing Hasse Creek, Old Pontotoc crossing Little Willow Creek, Old Union crossing, Hickory Grove crossing Elm Creek, Mason-Llano crossing and crossings along County Road 238. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
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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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