Moderate

At 305 AM EDT, Doppler radar was tracking a strong thunderstorm near Novi, moving east at 50 mph. HAZARD...Winds in excess of 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Livonia, Novi, and Northville around 310 AM EDT. Southfield around 315 AM EDT. Detroit and Dearborn around 330 AM EDT. Downtown Detroit around 335 AM EDT. Belle Isle around 340 AM EDT. Grosse Pointe around 345 AM EDT.

At 206 AM CDT, Doppler radar was tracking a strong thunderstorm 20 miles northwest of Whitman, or 38 miles northwest of Mullen, moving east at 30 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Speckel Meir Lake, Sevenmile Hill, Round Lake, and Intersection of Highway 61 and Survey Valley Road. This includes Highway 61 between mile markers 173 and 190.

* WHAT...Heat index values up to 107 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning

* WHAT...Heat index values up to 105 expected. * WHERE...Okfuskee, Creek, Pawnee, and Western Osage Counties. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

At 232 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Edinboro to 10 miles south of Meadville. Movement was east at 50 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Titusville, Union City, Riceville, Canadohta Lake, Guys Mills, Lincolnville, Hydetown, Mill Village, Townville, Spartansburg, and Elgin.

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of central, northern, northwest, southern, southwest, and western Oklahoma and northern Texas. * WHEN...From 1 PM this afternoon to 7 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.

At 1243 AM MDT, Doppler radar was tracking a strong thunderstorm 13 miles east of Crescent Lake National Wildlife Refuge, or 27 miles north of Oshkosh, moving northeast at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Hyannis, Ashby, Rackett, Sand Puddin Lake, Swede Lake, Britton Lake, Kincaid Lake, Jensen Lake, Green Lake, Bourquim Hill, Dominick Lake,

At 217 AM EDT, Doppler radar indicated a strong thunderstorm near Fowlerville, moving southeast at 45 mph. HAZARD...Winds gusts around 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and damage unsecured objects. This strong thunderstorm will be near... Howell around 225 AM EDT. Hartland around 235 AM EDT. Other locations impacted by this storm include Island Lake State Recreation Area, Chilson, Conway Township, Tyrone Township, and Deerfield Township.

* WHAT...For the High Surf Advisory, hazardous surf of 7 to 10 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...West facing reefs of the Marianas. * WHEN...Until 4 PM ChST 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. * ADDITIONAL DETAILS...Pulses in the southwesterly monsoon along the southern peripheries of newly-formed Invest 97W will

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...From 11 AM this morning to 8 PM EDT 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.