Expected

* WHAT...Dangerously hot conditions below 4000 feet, with daytime temperatures ranging from 103 degrees at Havasupai Gardens, to 112 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Thursday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. This warning is reserved for only the hottest days of the year and is

...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois...Indiana... Little Calumet River at Munster (Hohman Avenue) affecting Lake IN and Cook Counties. For the Little Calumet River...including South Holland, Munster (Hohman Avenue)...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Little Calumet River from IN-912 in Hammond downstream to confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge.

* WHAT...Small stream flooding caused by excessive rainfall is expected in the Sahuarita area, mainly along and south of east Sahuarita road. * WHERE...Eastern Pima County in southeastern Arizona, including areas near and between Sahuarita and Corona De Tucson... * WHEN...Until 545 PM MST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 244 PM MST, Doppler radar and automated rain gauges indicated

At 449 PM CDT, Doppler radar was tracking a strong thunderstorm near Pike Road, or 12 miles northeast of Meadville, moving northeast 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... Tuskegee, Milstead, Shorter, Franklin, Hardaway, Liverpool, Victoryland, Davisville, Lake Tuskegee, Cross Keys, Mitchell, and Cecil. If outdoors, consider seeking shelter inside a building.

At 350 PM MDT, Doppler radar was tracking a strong thunderstorm over San Elizario, moving southeast at 15 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Blowing dust is also possible along Interstate 10 between San Elizario and Fabens which will reduce visibilities to under a mile. Locations impacted include... Clint, Fabens, Horizon City, San Elizario, Socorro, Dairyland, and Colonia del Paso.

The National Weather Service in Phoenix has issued a * Dust Advisory for... Pinal County in southeastern Arizona... * Until 345 PM MST. * At 254 PM MST, a dust channel was over Arizona City, or 12 miles southeast of Casa Grande, moving northeast at 15 mph. HAZARD...Less than three miles visibility with strong wind in excess of 40 mph. SOURCE...Doppler radar. IMPACT...Hazardous travel. * This includes the following highways... AZ Interstate 10 between mile markers 188 and 204. AZ Interstate 8 between mile markers 168 and 178.

* WHAT...Dangerous rip currents and breaking waves due to elevated surf of 3 to 6 feet on south-facing beaches, as well as minor coastal flooding near times of high tide. * WHERE...Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...Through late Thursday night. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats

* WHAT...Dangerous rip currents and breaking waves due to surf of 2 to 4 feet on south-facing beaches expected, with 3 to 5 feet near Jalama. Minor coastal flooding is also possible near times of high tide. * WHERE...Santa Barbara County Southwestern Coast and Santa Barbara County Southeastern Coast. * WHEN...Through late Thursday night. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can

At 536 PM EDT, Doppler radar was tracking a strong thunderstorm near Surrency, moving east at 40 mph. HAZARD...Wind gusts around 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Surrency and Odum. If outdoors, consider seeking shelter inside a building.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of north central and northern Indiana, including the following counties, in north central Indiana, St. Joseph. In northern Indiana, La Porte. * WHEN...Until 730 PM EDT /630 PM CDT/. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Overflowing poor drainage areas. * ADDITIONAL DETAILS... - At 538 PM EDT /438 PM CDT/, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or