* WHAT. Heat index values up to 110 expected. * WHERE. Portions of east central and northeast Kansas and central, north central, northwest, and west central Missouri. * WHEN. Until 8 PM CDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 115. * WHERE. Portions of east central and northeast Kansas and central, north central, northwest, and west central Missouri. * WHEN. Until 8 PM CDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Flooding caused by excessive rainfall is possible. * WHERE. Portions of Illinois, including the following areas, Bureau, Hancock, Henderson, Henry IL, McDonough, Mercer, Putnam, Rock Island and Warren, Iowa, including the following areas, Cedar, Des Moines, Henry IA, Iowa, Jefferson, Johnson, Keokuk, Lee, Louisa, Muscatine, Scott, Van Buren and Washington, and northeast Missouri, including the following areas, Clark and Scotland. * WHEN. From 4 PM CDT this afternoon through 7 AM CDT Wednesday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Numerous thunderstorms producing very heavy rainfall are expected to develop ahead of a slow moving cold front. Several inches of rain in a short time is possible.

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of Illinois, including the following areas, Bureau, Hancock, Henderson, Henry IL, McDonough, Mercer, Putnam, Rock Island and Warren, Iowa, including the following areas, Cedar, Des Moines, Henry IA, Iowa, Jefferson, Johnson, Keokuk, Lee, Louisa, Muscatine, Scott, Van Buren and Washington, and northeast Missouri, including the following areas, Clark and Scotland. * WHEN. Through 7 AM CDT Wednesday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS. - Numerous thunderstorms producing very heavy rainfall are expected to develop ahead of a slow moving cold front. Several inches of rain in a short time is possible.

* WHAT. Heat index values of 105 to 108. * WHERE. Portions of east central and northeast Kansas and central, north central, northwest, and west central Missouri. * WHEN. Until 8 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

The Flood Watch continues for the following rivers in Illinois. Missouri. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. . The Flood Watch is replaced by a River Flood Warning for the following rivers in Illinois. Iowa. Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine zones. Mississippi River at Bellevue LD12 affecting Jackson, Clinton, Jo Daviess and Carroll Counties. Mississippi River at Le Claire LD14 affecting Rock Island and Scott zones. Mississippi River at Fulton LD13 affecting Clinton, Carroll and Whiteside Counties. * WHAT. Flooding is possible. * WHERE. Mississippi River at Gregory Landing. * WHEN. From Saturday afternoon until further notice. * IMPACTS. At 17.0 feet, Water affects the road north of the grain elevator in Gregory Landing. * ADDITIONAL DETAILS. - At 12:00 PM CDT Tuesday the stage was 12.7 feet. - Forecast. Flood stage may be reached early Saturday afternoon. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for. Southeastern Van Buren County in southeastern Iowa. Northwestern Lee County in southeastern Iowa. * Until 745 PM CDT. * At 656 PM CDT, a severe thunderstorm was located over Mount Zion, or near Keosauqua, moving east at 30 mph. HAZARD. 60 mph wind gusts and half dollar size hail. SOURCE. Radar indicated. IMPACT. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include. Keosauqua, Bonaparte, Bentonsport/Vernon, Farmington, Houghton, Mount Sterling, Mt Hamill, Van Buren County Fairgrounds, Keosauqua Airport, Utica, Mount Zion, Shimek State Forest, Indian Lake Park, Lake Sugema Campground, Lacey Keosauqua State Park, and Kilbourn.

At 709 PM CDT, a severe thunderstorm was located over Bentonsport/Vernon, or near Keosauqua, moving east at 20 mph. HAZARD. 60 mph wind gusts and half dollar size hail. SOURCE. Radar indicated. IMPACT. Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include. Keosauqua, Bonaparte, Bentonsport/Vernon, Farmington, Houghton, Mount Sterling, Indian Lake Park, Mt Hamill, Keosauqua Airport, Lacey Keosauqua State Park, Shimek State Forest, and Van Buren County Fairgrounds.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 11 COUNTIES IN NORTH CENTRAL ILLINOIS BUREAU PUTNAM IN NORTHWEST ILLINOIS CARROLL HENRY IL MERCER ROCK ISLAND WHITESIDE IN WEST CENTRAL ILLINOIS HANCOCK HENDERSON MCDONOUGH WARREN IN IOWA THIS WATCH INCLUDES 14 COUNTIES IN EAST CENTRAL IOWA CEDAR CLINTON IOWA JOHNSON MUSCATINE SCOTT IN SOUTHEAST IOWA DES MOINES HENRY IA JEFFERSON KEOKUK LEE LOUISA VAN BUREN WASHINGTON IN MISSOURI THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST MISSOURI CLARK SCOTLAND THIS INCLUDES THE CITIES OF ALEDO, BETTENDORF, BURLINGTON, CARTHAGE, CLINTON, CREDIT ISLAND, DAVENPORT, FAIRFIELD, GENESEO, HENNEPIN, IOWA CITY, KAHOKA, KEOKUK, KEOSAUQUA, MACOMB, MARENGO, MEMPHIS, MOLINE, MONMOUTH, MOUNT CARROLL, MOUNT PLEASANT, MUSCATINE, OQUAWKA, PRINCETON, ROCK ISLAND, SIGOURNEY, STERLING, TIPTON, WAPELLO, AND WASHINGTON.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 24 COUNTIES IN CENTRAL IOWA DALLAS JASPER POLK POWESHIEK IN SOUTH CENTRAL IOWA APPANOOSE CLARKE DECATUR LUCAS MADISON MAHASKA MARION MONROE RINGGOLD UNION WARREN WAYNE IN SOUTHEAST IOWA DAVIS WAPELLO IN SOUTHWEST IOWA ADAIR ADAMS CASS TAYLOR IN WEST CENTRAL IOWA AUDUBON GUTHRIE THIS INCLUDES THE CITIES OF ADAIR, ADEL, ALBIA, ALLERTON, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BLOOMFIELD, CARLISLE, CASEY, CENTERVILLE, CHARITON, CORNING, CORYDON, CRESTON, DES MOINES, EARLHAM, EXIRA, FONTANELLE, GREENFIELD, GRINNELL, GUTHRIE CENTER, HUMESTON, INDIANOLA, KNOXVILLE, LAMONI, LENOX, LEON, MOUNT AYR, NEW MARKET, NEWTON, NORWALK, OSCEOLA, OSKALOOSA, OTTUMWA, PANORA, PELLA, PERRY, SEYMOUR, STUART, WAUKEE, AND WINTERSET. * PRIMARY THREATS INCLUDE. SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE. SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY. A TORNADO OR TWO POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 20% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 05% PROB OF 10 OR MORE SEVERE WIND EVENTS : 70% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 20% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 60% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90% MEAN STORM MOTION /MPH/ : SE 30