Weather Alert in Iowa
Special Weather Statement issued May 9 at 4:46AM CDT by NWS Sioux Falls SD
AREAS AFFECTED: Lyon; Lincoln; Lyon; Murray; Cottonwood; Nobles; Jackson; Pipestone; Rock; Beadle; Kingsbury; Brookings; Jerauld; Sanborn; Miner; Lake; Moody; Brule; Aurora; Davison; Hanson; McCook; Minnehaha; Douglas; Hutchinson; Turner; Lincoln
DESCRIPTION: Warm and very dry conditions are expected this afternoon, with humidity levels as low as 15 to 25 percent. Coupled with breezy west to northwest winds gusting up to 20-25 mph, fire danger conditions may reach near critical levels. Fire danger will be greatest in localized areas where grasses are still receptive to fire starts and spread. Isolated to scattered light showers during the late afternoon and evening will also bring a potential for isolated gusts up to 40 to 50 mph. This could result in erratic fire behavior. Check with local officials before attempting any outdoor burning today.
INSTRUCTION: N/A
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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
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
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