Weather Alert in Wisconsin
Fire Weather Watch issued May 10 at 2:24PM CDT until May 11 at 10:00PM CDT by NWS Duluth MN
AREAS AFFECTED: Douglas; Bayfield; Ashland; Iron; Burnett; Washburn; Sawyer; Price
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED IN NORTHEASTERN MINNESOTA AND POSSIBLE IN NORTHWESTERN WISCONSIN SUNDAY... .Breezy south-southwesterly to southerly winds gusting to 25 to 30 mph Sunday along with relative humidity values as low as 15 percent will lead to critical fire weather conditions across northeastern Minnesota late Sunday morning into Sunday evening. For northwest Wisconsin, relative humidity of 20 to 25 percent combined with the gusty winds may lead to critical fire weather conditions Sunday afternoon into evening. RH values will improve late Sunday evening as the air near the ground begins to cool around and after sunset. Additional breezy southerly winds and low relative humidity values on Monday and possibly Tuesday may lead to additional critical fire weather conditions. The National Weather Service in Duluth has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Sunday afternoon through Sunday evening. * AFFECTED AREA...In Wisconsin, Douglas, Bayfield, Ashland, Iron, Burnett, Washburn, Sawyer and Price. * WINDS...South 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...This combination of wind and minimum RH could lead to the rapid spread of fires.
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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