Severe

The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect until 10 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 478 Salt Lake Desert. * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph, strongest late this afternoon into the early evening. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.

SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Northeastern Marshall County in central Iowa... Southwestern Black Hawk County in northeastern Iowa... Tama County in central Iowa... Southeastern Grundy County in central Iowa... * Until noon CDT. * At 1108 AM CDT, severe thunderstorms were located along a line extending from Beaman to 5 miles east of Garwin to 4 miles west of Chelsea, moving northeast at 40 mph. HAZARD...60 mph wind gusts.

...The Flood Warning is extended for the following rivers in Missouri... Missouri River at St. Charles. Missouri River at Hermann. Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Osage River near Mari-Osa Campground. ...The Flood Warning is cancelled for the following rivers in Missouri... Missouri River at Washington. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring.

...The Flood Warning is extended for the following rivers in Missouri... Missouri River at St. Charles. Missouri River at Hermann. Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Osage River near Mari-Osa Campground. ...The Flood Warning is cancelled for the following rivers in Missouri... Missouri River at Washington. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast.

...The Flood Warning is extended for the following rivers in Missouri... Missouri River at St. Charles. Missouri River at Hermann. Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Osage River near Mari-Osa Campground. ...The Flood Warning is cancelled for the following rivers in Missouri... Missouri River at Washington. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast.

...The Flood Warning is extended for the following rivers in Missouri... Missouri River at St. Charles. Missouri River at Hermann. Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Osage River near Mari-Osa Campground. ...The Flood Warning is cancelled for the following rivers in Missouri... Missouri River at Washington. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Missouri River near Chamois.

At 1109 AM CDT, severe thunderstorms were located along a line extending from near Alden to Steamboat Rock to 4 miles north of Beaman, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Iowa Falls, Eldora, Grundy Center, Conrad, Hubbard, Alden, Wellsburg, Radcliffe, Union, Steamboat Rock, Liscomb, Holland, New Providence, Whitten, Buckeye, Morrison, Owasa, Pine Lake State Park, Iowa Falls

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Benton County in east central Iowa... * Until 1215 PM CDT. * At 1115 AM CDT, severe thunderstorms were located along a line extending from near Gladbrook to Blairstown, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Vinton, Belle Plaine, Urbana, Dysart, Shellsburg, Van Horne,

* 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, Warren and Whiteside, Iowa, including the following areas, Cedar, Clinton, 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 Thursday morning.

* WHAT...Dangerously hot conditions with heat index values up to 110 expected. * WHERE...Palo Duro Canyon. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.