Moderate

* WHAT...High temperatures up to 104 degrees expected. Moderate to Major Heat Risk is expected at this time. * WHERE...Southern San Joaquin Valley and West Side Hills of the Coastal Range. * WHEN...Until 11 PM PDT Wednesday. * IMPACTS...Hot temperatures 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. Take extra precautions when outside. Wear lightweight and loose

At 741 PM PDT, Doppler radar was tracking a strong thunderstorm 8 miles east of McDermitt, moving northeast at 30 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. Areas of blowing dust reducing visibility. Minor damage to outdoor objects is possible. Locations impacted include... Horse Hill and Anderson Crossing, near McDermitt east of U.S. Highway 95.

At 914 PM CDT, Doppler radar was tracking a strong thunderstorm 16 miles south of Medicine Lake, or 35 miles northwest of Mullen, moving southeast at 30 mph. HAZARD...Wind gusts up to 40 mph and penny 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... Sevenmile Hill, Highway 97 crossing the North Loup River, and Speckel Meir Lake.

At 814 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 9 miles north of Orin to 16 miles west of Garrett. Movement was southeast at 15 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Douglas, Glendo, Manville, Orin, Esterbrook, Sibley Peak, Glendo State Park, Reno Cove Campground, Sandy Beach Campground, Friend Park

* WHAT...Strong currents and dangerous swimming conditions. * WHERE...Beaches of Wayne county. * WHEN...Until 6 AM EDT Tuesday. * IMPACTS...Strong currents and dangerous swimming conditions. Stay out of the water to avoid dangerous swimming conditions.

* WHAT...Strong currents and dangerous swimming conditions. * WHERE...Beaches of Chautauqua and Southern Erie counties. * WHEN...Until midnight EDT tonight. * IMPACTS...Strong currents and dangerous swimming conditions. Stay out of the water to avoid dangerous swimming conditions.

* WHAT...Strong currents and dangerous swimming conditions. * WHERE...Beaches of Northern Cayuga, Oswego, and Jefferson counties. * WHEN...Until 6 AM EDT Tuesday. * IMPACTS...Strong currents and dangerous swimming conditions. Stay out of the water to avoid dangerous swimming conditions.

* WHAT...Visibility of a quarter-mile or less in dense fog. * WHERE...Coastal Washington County. * WHEN...Until 9 AM EDT Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 827 PM MDT, Doppler radar was tracking a strong thunderstorm 8 miles north of Coalville, moving northeast at 20 mph. HAZARD...Wind gusts of 50 to 55 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Henefer, Wahsatch, Emory, Croydon, Castle Rock, and Echo. This includes the following highways... Interstate 84 between mile markers 112 and 119.

* WHAT...High waves and dangerous currents expected. * WHERE...Beaches along Lake Michigan in Kewaunee and Manitowoc Counties. * WHEN...From Tuesday evening through late Tuesday night. * 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... Cresent Beach and City of Kewaunee Beach in Kewaunee County.