Weather Alert in Wisconsin
Red Flag Warning issued May 11 at 2:56AM 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 IN NORTHWESTERN WISCONSIN TODAY... .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 and northwestern Wisconsin today. 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 Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM this morning to 10 PM CDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Wisconsin, Douglas, Bayfield, Ashland, Iron, Burnett, Washburn, Sawyer and Price. * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 21 percent. * IMPACTS...This combination of wind and minimum RH could lead to the rapid spread of fires.
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 are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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