Moderate

* WHAT...South swell from 190 degrees with a period of 15 to 16 seconds will generate surf of 4 to 6 feet with sets up to 8 feet along south-facing beaches. High rip current risk. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...Through Thursday afternoon. * IMPACTS...Hazardous swimming conditions with high rip current and longshore current risk. If you become caught in a rip current, yell for help. Remain calm and do not exhaust

* WHAT...Southwest winds 10 to 20 mph with gusts up to 30 mph expected. * WHERE...Crab Orchard and Rend Lake in Illinois, Kentucky Lake and Lake Barkley in Kentucky, and Lake Wappapello in Missouri. * WHEN...From 10 AM to 8 PM CDT Thursday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

* WHAT...High temperatures of 96 to 105 expected for most valley locations. Moderate to Major HeatRisk expected. * WHERE...Lake County, and Southeastern Interior Mendocino. * WHEN...From noon Thursday to 10 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses especially for those without cooling or hydration. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

At 1126 PM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 10 miles southwest of Antigo to near Bevent, or extending from 10 miles southwest of Antigo to 19 miles southeast of Wausau, moving east at 40 mph. HAZARD...Wind gusts up to 30 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. The strong thunderstorm will be near...

Wind gusts of 40 mph up to 55 mph will be possible in areas of light showers or spinkles over the next hour or two.

* WHAT...Increased risk of sneaker waves and strong rip currents due to long period southerly swell. * WHERE...Pacific Coast beaches, especially south and southwest facing beaches, across Sonoma, Marin, San Mateo, and Santa Cruz Counties. * WHEN...Through 9 PM Thursday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion can be expected. Sneaker waves can sweep across the shoreline without warning, pulling people into the sea from rocks, jetties and beaches.

* WHAT...Northeast winds 15 to 25 mph with gusts up to 45 to 55 mph expected. * WHERE...Lower Washington County, particularly along the I-15 corridor between Kanarraville through Leeds, and areas south through Hurricane. * WHEN...From 3 AM to 9 AM MDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles and vehicles with trailers. Use extra caution.

* WHAT...High temperatures between 90 and 103 for interior valleys and higher elevations. High temperatures between 85 and 96 degrees for the Bay Shoreline. * WHERE...North Bay Interior Mountains and Valleys, and San Francisco Bay Shoreline. * WHEN...From noon to 11 PM PDT Thursday. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.

* WHAT...Temperatures between 90 and 95 for most areas, with some readings above 100 degrees. Hottest conditions across the East Bay Hills and Valleys. * WHERE...The Santa Clara Valley and Eastern Hills, and The East Bay Hills and Valleys. * WHEN...From noon Thursday to 7 PM PDT Friday. * IMPACTS...This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration. This level of heat

* WHAT...Heat index values of 95 to 100 expected. * WHERE...Broome, Chemung, Onondaga, Schuyler, Seneca, Southern Cayuga, Steuben, Tioga, Tompkins, and Yates Counties. * WHEN...From noon today to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The hottest conditions will be in urban valley areas, where heat index values will climb above 95 degrees this afternoon. Showers and thunderstorms could provide relief