Severe

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 103 to 107. Major Heat Risk. * WHERE...Yuma area. * WHEN...From 10 AM Wednesday to 8 PM MST Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat.

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 104 to 109. Major Heat Risk. * WHERE...Portions of Imperial County, including the Imperial Valley. * WHEN...From 10 AM Wednesday to 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 102 to 106. Major Heat Risk. * WHERE...In Arizona, Gila River Valley and Parker Valley. In California, Chuckwalla Valley and Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ to 8 PM MST /8 PM PDT/ Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. An Extreme Heat Warning means that a period of very hot temperatures,

* WHAT...Sub-freezing temperatures of 26 to 32 degrees expected. * WHERE...Franklin County, and Hampshire County. * WHEN...From 11 PM this evening to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until Wednesday morning. * IMPACTS...At 7.0 feet, Low-lying wetlands and agricultural land is inundated near the river. * ADDITIONAL DETAILS... - At 9:30 AM CDT Tuesday the stage was 7.1 feet.

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Iowa River at Oakville affecting Louisa County. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Marengo affecting Benton and Iowa Counties. Iowa River at Wapello affecting Louisa County. * WHAT...Minor flooding is occurring. * WHERE...Iowa River at Marengo. * WHEN...Until Saturday afternoon.

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Iowa River at Oakville affecting Louisa County. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Marengo affecting Benton and Iowa Counties. Iowa River at Wapello affecting Louisa County. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Wapsipinicon River near De Witt 4S.

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Iowa River at Oakville affecting Louisa County. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Marengo affecting Benton and Iowa Counties. Iowa River at Wapello affecting Louisa County. * WHAT...Minor flooding is occurring. * WHERE...Iowa River at Wapello. * WHEN...Until Friday morning.

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Iowa River at Oakville affecting Louisa County. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Marengo affecting Benton and Iowa Counties. Iowa River at Wapello affecting Louisa County. * WHAT...Minor flooding is occurring. * WHERE...Cedar River near Conesville. * WHEN...Until late Thursday night.

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. Iowa River at Oakville affecting Louisa County. ...The Flood Warning continues for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. Iowa River at Marengo affecting Benton and Iowa Counties. Iowa River at Wapello affecting Louisa County. * WHAT...Minor flooding is occurring. * WHERE...Iowa River at Oakville. * WHEN...Until late Thursday night.