Weather Alert in Michigan
Red Flag Warning issued April 28 at 9:00AM EDT until April 28 at 8:00PM EDT by NWS Gaylord MI
AREAS AFFECTED: Cheboygan; Presque Isle; Otsego; Montmorency; Alpena; Crawford; Oscoda; Alcona; Roscommon; Ogemaw; Iosco; Gladwin; Arenac
DESCRIPTION: ...Critical Fire Weather Conditions Today... .Stronger south winds with frequent gusts combine with a dry airmass today. South winds of 5 to 10 mph with frequent gusts up to 20 mph will become 10 to 15 mph with gusts up to 30 mph by early afternoon today. Humidity values will dip quickly late this morning, becoming 20% to 25% by early afternoon. These conditions will last through the mid and late afternoon hours. Winds continue to strengthen this evening, however moisture will begin to move in from the west. Sunny skies and mixing heights around 4kft will lead to unstable air today. NE lower will likely see the longest critical conditions, possibly lasting into the evening hours. The National Weather Service in Gaylord has issued a Red Flag Warning, which is in effect until 8 PM EDT this evening. * AFFECTED AREA...Fire weather zones 017, 018, 022, 023, 024, 028, 029, 030, 034, 035, 036, 041, and 042. * WIND...South winds of 10 to 15 mph with frequent gusts up to 30 mph. Winds will strengthen this evening. * HUMIDITY...Minimum relative humidity 20% to 25%. The lowest values will be over interior areas. * THUNDERSTORMS...Chances for thunderstorms tonight. * HIGHEST THREAT...Highest threat areas will be interior locations. * 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 are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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