![]() More damage to most roofing surfaces, asphalt tiles that have curled up and/or fractured due to age may break away completely.Ĭonsiderable and widespread damage to vegetation, a few windows broken, structural damage to mobile homes and poorly constructed sheds and barns. Trees are broken off or uprooted, saplings bent and deformed, poorly attached asphalt shingles and shingles in poor condition peel off roofs. Construction/temporary signs and barricades blow over. Larger branches break off trees, and some small trees blow over. Swaying of skyscrapers may be felt, especially by people on upper floors. Leaves and small twigs in constant motionĭust and loose paper raised, small branches moveīranches of a moderate size move, small trees begin to sway Wind smoke felt on exposed skin, leaves rustle National Weather Service Omaha/Valley, NebraskaCass, Fremont, Harrison, Mills, Monona, Montgomery, Page, Pottawattamie, Shelby National Weather Service La Crosse, WisconsinAllamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell, Winneshiek National Weather Service Sioux Falls, South DakotaBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon, O'Brien, Osceola, Plymouth, Sioux, Woodbury National Weather Service Quad Cities, Iowa/IllinoisBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines, Dubuque, Henry, Iowa, Jackson, Jefferson, Johnson, Jones, Keokuk, Lee, Linn, Louisa, Muscatine, Scott, Van Buren, Washington These volunteers, sometimes organized under the SKYWARN banner in the U.S., are typically trained by NWS forecasters to be the eyes and ears of both the warning forecasters and the local public safety networks.įor a list of which counties in each office and more information on how to report: National Weather Service Des Moines, IowaAdair, Adams, Appanoose, Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll, Cerro Gordo, Clarke, Crawford, Dallas, Davis, Decatur, Emmet, Franklin, Greene, Grundy, Guthrie, Hamilton, Hancock, Hardin, Humboldt, Jasper, Kossuth, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Palo Alto, Pocahontas, Polk, Poweshiek, Ringgold, Sac, Story, Tama, Taylor, Union, Wapello, Warren, Wayne, Webster, Winnebago, Worth, Wright The program is made up of thousands of volunteers who attend regular training and then scan the skies of their communities identifying and reporting critical storm information. What is SKYWARN? SKYWARN is a program sponsored by the National Weather Service. All share a sense of responsibility to their neighbors. Some spotters are amateur radio operators. Citizens may also be an active part of the spotter network, some with an avid interest in the weather and many without. Often, local fire and police personnel are trained to observe and report severe weather, partly due to their extensive radio communication and 24-hour operations. ![]() Who are spotters? Virtually every community has some form of spotter network. ![]() Even as new technology allows the National Weather Service to issue warnings with greater lead time, spotters will always serve as a critical link between radar indications of severe weather and what’s happening on the ground. Spotters are provide this real-time ground-truth of local conditions - such as hail size, wind speed, tornado development, and local damage - to help warn the public. Real-time reports are critical in issuing warnings and saving lives. ![]()
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