Expected

* WHAT...Dangerously hot conditions with heat index values up to 117 expected. * WHERE...Duval, La Salle, McMullen, and Webb Counties. * WHEN...From noon to 8 PM CDT Thursday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

* WHAT...Dangerous rip currents and strong longshore currents in the surf zone. * WHERE...The beaches from Cape Hatteras to Surf City. * WHEN...From 8 AM EDT Thursday through Thursday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Strong longshore currents will create dangerous swimming conditions. * ADDITIONAL DETAILS...The most likely time for strong rip currents to occur is a couple hours either side of low tide, which will occur around 4:00 PM Thursday.

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Madison, Northern Oneida, Onondaga, Seneca, Southern Cayuga, Southern Oneida, and Yates Counties. * WHEN...From 4 AM to 6 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

At 648 PM CDT, Doppler radar was tracking a strong thunderstorm near Schell City, or 7 miles east of Rich Hill, moving east at 35 mph. HAZARD...Wind gusts of 50 to 55 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Rockville. If outdoors, consider seeking shelter inside a building. A Tornado Watch remains in effect until 1000 PM CDT for west central Missouri.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of northern Indiana, including the following counties, Lagrange and Steuben, southwest Michigan, including the following counties, Branch and Hillsdale, and northwest Ohio, including the following county, Williams. * WHEN...Until 945 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 750 PM EDT, Doppler radar indicated heavy rain due to

The National Weather Service in Phoenix has issued a * Dust Advisory for... Maricopa County in south central Arizona... Pinal County in southeastern Arizona... * Until 545 PM MST. * At 452 PM MST, a wall of dust was along a line extending from near Phoenix Mesa Gateway Airport to Chandler Fashion Center Mall to near South Mountain Park, moving north at 15 mph. HAZARD...Less than one mile visibility with strong wind in excess of 30 mph. SOURCE...Doppler radar. IMPACT...Hazardous travel.

At 552 PM MDT, Doppler radar was tracking a gust front along a line extending from 13 miles southwest of Afton to 4 miles southwest of Deming. Movement was southeast at 30 mph. HAZARD...Wind gusts up to 50 mph as the gust front moves through. There will likely be little if any rain with these wind gusts. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Areas of blowing dust south of Deming could reduce visibilities briefly to under a mile.

* WHAT...Minor coastal flooding expected. * WHERE...Matagorda Peninsula, Brazoria County beaches, and Galveston Island. * WHEN...Until 3 AM CDT Thursday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Elevated water levels may result in minor coastal, especially during times of high tide. If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of

* WHAT...Minor coastal flooding. * WHERE...Gulf-facing beaches, including the Matagorda Peninsula, Brazoria County beaches, Galveston Island and the Bolivar Peninsula. * WHEN...Until 3 AM CDT Thursday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Elevated water levels may result in minor coastal, especially during times of high tide. If travel is required, allow extra time as some roads may be

At 630 PM CDT, Doppler radar was tracking a strong thunderstorm over Rich Hill, moving east at 35 mph. HAZARD...Wind gusts up to 50 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Schell City, Metz, Harwood, and Horton. If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for