Weather Alert in Iowa
Special Weather Statement issued August 12 at 2:27AM CDT by NWS Quad Cities IA IL
AREAS AFFECTED: Jackson; Cedar; Clinton; Muscatine; Scott; Carroll; Whiteside; Rock Island; Henry
DESCRIPTION: At 227 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Wheatland to Long Grove to Warner. Movement was northeast at 40 mph. HAZARD...Winds in excess of 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could cause minor tree limb damage and blow around unsecured objects. Locations impacted include... Davenport, Moline, Rock Island, Bettendorf, Clinton, East Moline, Maquoketa, Morrison, Silvis, Geneseo, Eldridge, DeWitt, Milan, Colona, Camanche, Le Claire, Coal Valley, Fulton, Savanna, and Prophetstown. This includes the following highways... Interstate 74 in Iowa between mile markers 1 and 5. Interstate 80 in Iowa between mile markers 279 and 306. Interstate 80 in Illinois between mile markers 1 and 17. Interstate 74 in Illinois between mile markers 1 and 18. Interstate 88 between mile markers 1 and 31. Interstate 280 between mile markers 1 and 18.
INSTRUCTION: If outdoors, consider seeking shelter inside a building.
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Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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