Severe

* WHAT...For the Heat Advisory, temperatures up to 106. For the<br /> Extreme Heat Warning, dangerously hot conditions with temperatures<br /> up to 112 expected. Temperatures up to 115 can be expected along<br /> the Rio Grande. * WHERE...Lower Brewster, Terrell, Glasscock, Howard, Mitchell, and<br /> Reagan Counties. * WHEN...For the Heat Advisory, until 10 PM CDT this evening. For the<br /> Extreme Heat Warning, from noon to 10 PM CDT Thursday. * IMPACTS...Heat related illnesses increase significantly during<br />

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The following counties, in Indiana, Dearborn, Fayette,<br /> Franklin, Ohio, Ripley, Switzerland and Union, the following<br /> counties, in northern Kentucky, Boone, Bracken, Campbell, Carroll,<br /> Gallatin, Grant, Kenton, Mason, Owen, Pendleton and Robertson, and<br /> the following counties, in Ohio, Adams, Brown, Butler, Clermont<br /> and Hamilton. * WHEN...From 10 PM EDT this evening through Thursday morning.

At 1202 PM CDT, Doppler radar indicated thunderstorms producing<br /> heavy rain across the warned area. Between 1 and 3 inches of rain<br /> have fallen. Flash flooding is ongoing, with 3 to 5 inches of water<br /> on many of the back roads between Colchester and Adair. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas,<br /> highways, streets and underpasses as well as other poor<br /> drainage and low-lying areas.

* AFFECTED AREA...Fire Weather Zone 204 Eastern<br /> Panhandle/Crescent Lake NWR, Fire Weather Zone 206<br /> Sandhills/Valentine NWR/Nebraska National Forest, Fire Weather<br /> Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie<br /> National Forest, Fire Weather Zone 209 Loup Rivers Basin, Fire<br /> Weather Zone 210 Frenchman Basin and Fire Weather Zone 219<br /> Loess Plains. * TIMING...Noon through 9 PM CDT this evening. * WINDS...Northwest 20 to 30 mph with gusts between 45 and 50 mph. * RELATIVE HUMIDITY...As low as 16 percent.

* AFFECTED AREA...Fire Weather Zones 211, 212, 213, 214, 217 and<br /> 218. * TIMING...Until 8 PM MDT this evening. * WINDS...West 20 to 30 mph with gusts up to 50 mph, strongest<br /> over the mountains. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Conditions will be favorable for rapid fire spread.<br /> Avoid outdoor burning and any activity that may produce a<br /> spark and start a wildfire.<br /> A Red Flag Warning means that critical fire weather conditions<br /> are either occurring now....or will shortly. A combination of<br />

At 1211 PM CDT, a severe thunderstorm was located near Chipley,<br /> moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include...<br /> Chipley, Graceville, Bonifay, Cottondale, Campbellton, Richter<br /> Crossroads, Brock Crossroad, Jacob City, Chipley Municipal Airport,<br /> Holmes County Airport, Jacobs, Browntown, Bahoma, Poplar Head,<br /> Ellaville, and Johnson Crossroads.<br />

...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at La Salle affecting Bureau, Putnam and La Salle<br /> Counties. For the Illinois River (Upper)...including La Salle...Minor flooding<br /> is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream<br /> to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until further notice. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State<br />

* WHAT...Flooding caused by excessive rainfall continues to be<br /> possible. * WHERE...Portions of southeast Louisiana, including the following<br /> parishes, Assumption, Central Jefferson, Central Plaquemines,<br /> Central St. Charles, Central Tangipahoa, East Baton Rouge, East<br /> Feliciana, Eastern Ascension, Eastern Orleans, Iberville, Lower St.<br /> Charles, Lower Tangipahoa, Northern Livingston, Northern St.<br /> Tammany, Northern Tangipahoa, Pointe Coupee, Southeast St. Tammany,<br />

SVRTAE The National Weather Service in Tallahassee has issued a * Severe Thunderstorm Warning for...<br /> Northwestern Jackson County in the Panhandle of Florida...<br /> Southeastern Holmes County in the Panhandle of Florida...<br /> Northeastern Washington County in the Panhandle of Florida... * Until 1245 PM CDT. * At 1154 AM CDT, a severe thunderstorm was located over Bonifay,<br /> moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include...<br />

* WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties.<br /> Water rises are also possible along the upper Saint Lawrence<br /> River in the Thousand Islands region. * WHEN...From 2 PM Thursday to 8 PM EDT Friday. * IMPACTS...The combination of high lake levels and significant<br /> wave action may result in minor lakeshore flooding along the<br /> immediate lakeshore, especially in bays, inlets, harbors, and<br /> other low lying areas along the shoreline. Shoreline erosion is<br />