Moderate

* WHAT...Heat index values up to 107. * WHERE...Portions of North and Central Texas. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous activities to the early morning or evening. Check up on relatives and

* WHAT...Heat index values up to 106. * WHERE...Bosque, Fannin, Hood, Jack, Palo Pinto, Parker, Somervell, Stephens, Young, and Lamar Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous

At 1038 PM MDT, Doppler radar was tracking a strong thunderstorm 5 miles south of Cheyenne Wells, moving northeast at 10 mph. HAZARD...Wind gusts up to 50 mph and pea 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. This strong thunderstorm will be near... Cheyenne Wells around 1045 PM MDT. This includes Highway 385 between mile markers 138 and 159. If outdoors, consider seeking shelter inside a building.

* WHAT...Visibility below one half a mile in dense fog. * WHERE...Cherokee, O'Brien, Plymouth, and Sioux Counties. * WHEN...Until 9 AM CDT Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 7 PM CDT Wednesday. * 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...Cheatham, Davidson, Dickson, Houston, Humphreys, Montgomery, Robertson, and Stewart Counties. * WHEN...From 11 AM to 8 PM CDT Wednesday. * 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...Dangerous and potentially life threatening rip currents and breaking waves due to elevated surf expected. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...Until 11 PM PDT this evening. * IMPACTS...There is an increased risk of ocean drowning. Rip currents will be widespread and very strong, potentially pulling swimmers and surfers out to sea. Waves can wash people off beaches and rocks. Pooling of sea water is possible around

* WHAT...Dangerous and potentially life threatening rip currents and breaking waves due to elevated surf expected. * WHERE...Catalina and Santa Barbara Islands, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...For the Coastal Flood Advisory, until 11 PM PDT this evening. For the Beach Hazards Statement, from 11 PM PDT this evening through late Wednesday night. * IMPACTS...There is an increased risk of ocean drowning. Rip currents will be widespread and very strong, potentially pulling

* WHAT...Dangerous and potentially life threatening rip currents and breaking waves due to elevated surf expected. * WHERE...Santa Barbara County Southwestern Coast and Santa Barbara County Southeastern Coast. * WHEN...Through late Wednesday night. * IMPACTS...There is an increased risk of ocean drowning. Rip currents will be widespread and very strong, potentially pulling swimmers and surfers out to sea. Waves can wash people off beaches and rocks. Pooling of sea water is possible around high

* WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Door, Kewaunee and Manitowoc Counties. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Dangerous swimming conditions are expected. Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Several beaches that will be most susceptible to the dangerous swimming conditions include... Rock Island State Beach, Baileys Harbor beaches and Whitefish