Weather Alert in South Dakota
Fire Weather Watch issued February 13 at 9:28PM MST until February 15 at 5:00PM MST by NWS Rapid City SD
AREAS AFFECTED: Southern Black Hills; Fall River County Area; Custer County Plains; Pine Ridge Area; Badlands Area; Bennett County Area; Mellette and Todd Counties; Tripp County; Southern Campbell; Weston County Plains
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE SUNDAY... .Unseasonably warm weather will combine with very dry air and breezy winds to support potential critical fire weather conditions Sunday. The lowest RH and breeziest winds will be from southern Campbell County east into south central SD. The National Weather Service in Rapid City has issued a Fire Weather Watch for gusty winds and low relative humidity, which is in effect from Sunday morning through Sunday afternoon. * AFFECTED AREA...Fire Weather Zones 315 Southern Campbell, 317 Weston County Plains, 321 Southern Black Hills, 322 Fall River County Area, 325 Custer County Plains, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions.
INSTRUCTION: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
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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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