Expected

* WHAT...Heat index values up to 110. * WHERE...Portions of central, northern, northwest, southern, southwest, and western Oklahoma and northern Texas. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Heat index values up to 108 expected. * WHERE...Love County. * WHEN...From 1 PM to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

The National Weather Service in Reno has issued a Red Flag Warning for thunderstorms and strong outflow winds, which is in effect from 1 PM to 10 PM PDT Thursday. * Affected Area...Fire Weather Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Weather Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties. * Thunderstorms...A mix of wet and dry thunderstorms Thursday

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the High Surf Advisory, large breaking waves of 3 to 7 feet expected in the surf zone. * WHERE...Walton and Bay County Beaches. * WHEN...For the High Rip Current Risk, through Saturday evening. For the High Surf Advisory, from 10 AM Thursday to 7 AM CDT Friday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water.

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the High Surf Advisory, large breaking waves of 3 to 7 feet expected in the surf zone. * WHERE...Walton and Bay County Beaches. * WHEN...For the High Rip Current Risk, through Saturday evening. For the High Surf Advisory, from 10 AM Thursday to 7 AM CDT Friday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water.

* WHAT...Dangerous rip currents. * WHERE...Gulf County Beaches. * WHEN...Through Saturday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of northeast Illinois, including the following counties, Cook and Will and northwest Indiana, including the following county, Lake IN. * WHEN...Until 615 PM CDT. * IMPACTS...Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 307 PM CDT, Doppler radar and automated rain gauges indicated heavy rain with rates in excess of 1 inch per hour.

Windy conditions will develop this afternoon and continue into tonight, even outside of any thunderstorms that develop. Southerly winds will gust up to 30-40 mph, with a few gusts to 45 mph possible. Gusty winds will blow around unsecured objects. The wind gusts may make driving more difficult, especially for high profile vehicles on east-west oriented roads.

* WHAT...During the Small Craft Advisory, expect sustained winds up to 28 knots from the southwest with isolated gusts up to 34 knots. The largest significant waves will be 5 feet with a potential maximum wave height of 7 feet. During the Low Water Advisory, abnormally low water levels expected. * WHERE...Michigan Waters of Lake Erie from Detroit River to North Cape MI. * WHEN...During the Small Craft Advisory, the maximum winds are expected around 11 PM EDT Wednesday with the largest waves

Outside of thunderstorms, windy conditions will develop this evening and continue tonight. South to southwest winds will gust up to 30-40 mph, with a few gusts to 45 mph possible. Gusty winds will blow around unsecured objects. The wind gusts may make driving more difficult, especially for high profile vehicles on east-west oriented roads.