Weather Alert in Wisconsin
Red Flag Warning issued May 12 at 3:10AM CDT until May 12 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Polk; Barron; St. Croix; Pierce
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY... The combination of hot temperatures in the 80s to lower 90s, very low relative humidity values between 15 to 25 percent, and gusty winds will work in tandem with dry fuels to create critical fire weather conditions today. Fires can quickly spread out of control in these conditions. The National Weather Service in Twin Cities/Chanhassen has issued a Red Flag Warning, which is in effect from noon today to 9 PM CDT this evening. The Fire Weather Watch is no longer in effect. * WIND...South to southwest winds of 10 to 15 mph with gusts up to 25 mph. * HUMIDITY...As low as 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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Weather Topic: What is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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