Weather Alert in Illinois

Recent Locations: Sutter, CA Sturtevant, WI Sublette, IL

Severe Thunderstorm Warning issued April 2 at 4:28PM CDT until April 2 at 5:30PM CDT by NWS Quad Cities IA IL

AREAS AFFECTED: Hancock, IL; Henderson, IL; Henry, IL; Mercer, IL; Rock Island, IL; Warren, IL; Des Moines, IA; Louisa, IA; Scott, IA

DESCRIPTION: SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... North central Hancock County in west central Illinois... Henderson County in west central Illinois... Northern Warren County in west central Illinois... Rock Island County in northwestern Illinois... Mercer County in northwestern Illinois... Western Henry County in northwestern Illinois... Des Moines County in southeastern Iowa... Southeastern Louisa County in southeastern Iowa... Central Scott County in east central Iowa... * Until 530 PM CDT. * At 427 PM CDT, severe thunderstorms were located along a line extending from Mannon to near Colusa, moving northeast at 50 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Severe thunderstorms will be near... Burlington, Oquawka, Dallas City, Millersburg, New Boston, Keithsburg, Joy, Carman, Gladstone, and Gulf Port around 435 PM CDT. Terre Haute, Edgington, Bald Bluff, Decorra, and Loud Thunder Scout Camp around 440 PM CDT. Aledo, Buffalo, Andalusia, Stronghurst, Biggsville, Rozetta, Seaton, Hamlet, Olena, and Gingle Corners around 445 PM CDT. Other locations in the path of these severe thunderstorms include Davenport, Rock Island, Reynolds, Taylor Ridge, Sunbeam, Milan, Oak Grove, Little York, Media, West Lake Park, Rock Island Arsenal, Credit Island, Blackhawk State Park, Mississippi Valley Fairgrounds, Moline, Bettendorf, Matherville, Kirkwood, Shale City, Preemption, Smithshire, Eleanor, Wanlock, Coyne Center, East Moline, Eldridge, Burgess, Viola, Riverdale, Boden, Panorama Park, Moline Quad-City Airport, Fruitland, Gilchrist, Monmouth, Silvis, Le Claire, Coal Valley, Hampton, Sherrard, Lake Warren, Campbells Island, Illiniwek Forest Preserve and Pleasant Valley. This includes the following highways... Interstate 74 in Iowa between mile markers 1 and 5. Interstate 80 in Iowa between mile markers 291 and 306. Interstate 80 in Illinois between mile markers 1 and 13. Interstate 74 in Illinois between mile markers 1 and 27. Interstate 88 between mile markers 1 and 6. Interstate 280 between mile markers 1 and 18.

INSTRUCTION: Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a sturdy building. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office in the Quad Cities. A Tornado Watch remains in effect until 800 PM CDT for northwestern and west central Illinois...and southeastern and east central Iowa.

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Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds