Moderate

* WHAT...Visibility less than one quarter of a mile in dense fog. * WHERE...In Minnesota, Carlton and South St. Louis Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Fond du Lac Band. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.

* WHAT...Visibility 1/4 mile or less in dense fog. * WHERE...Baraga, Keweenaw, Northern Houghton, and Southern Houghton Counties. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...For the Freeze Warning, sub-freezing temperatures of 27 to 32 expected. For the Frost Advisory, temperatures of 33 to 36 degrees will result in frost formation. Some colder locations like around Klamath Marsh, Chemult and portions of the Christmas Valley could have lows around or just below freezing Thursday morning. * WHERE...Northern and Eastern Klamath County and Western Lake County, including Chemult, Crescent, Sprague River, Bly, and Winter Rim.

At 748 AM CDT, Doppler radar was tracking a strong thunderstorm near Gallatin, moving northeast at 50 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. Locations impacted include... Trenton, Gallatin, Jamesport, Gilman City, Jameson, Tindall, and Brimson. If outdoors, consider seeking shelter inside a building.

At 751 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from near Dutch Corners to 9 miles north of Bevent, or extending from 20 miles north of Wausau to 16 miles east of Wausau, moving northeast at 45 mph. HAZARD...Wind gusts up to 50 to 55 mph and half inch 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...

At 752 AM CDT, Doppler radar was tracking a strong thunderstorm near Gower, moving northeast at 30 mph. HAZARD...Wind gusts up to 40 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. Locations impacted include... Cameron, Gower, Maysville, Stewartsville, Agency, Osborn, Clarksdale, Easton, and Amity. This includes Interstate 35 in Missouri between mile markers 51 and 56.

* WHAT...Temperatures up to 92 expected. * WHERE...San Luis Obispo County Inland Central Coast and Santa Barbara County Inland Central Coast. * WHEN...From 10 AM this morning to 7 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* 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...The East Bay and San Francisco Bay Shoreline, North Bay Interior Mountains and Valleys, and The Santa Clara Valley and Eastern Hills. * 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

At 820 AM EDT, Doppler radar was tracking a cluster of strong thunderstorms producing heavy rain along a line extending from near Camp Dix to Chapmanville. Movement was southeast at 30 mph. HAZARD...A quick 1 to 2 inches of rain. SOURCE...Radar indicated. IMPACT...Flooding of poor drainage and low-lying areas along with reduced visibility. The morning commute will be impacted. Locations impacted include... Grayson, Madison, Louisa, Logan, Olive Hill, Wayne, Beech Fork State

At 829 AM EDT/729 AM CDT/, Doppler radar was tracking a strong thunderstorm 9 miles northeast of Johnson Lake Barrens Natural Area, or 22 miles north of Eagle River, moving northeast at 25 mph. HAZARD...Wind gusts up to 40 mph and half inch 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... Watersmeet, Paulding, Thousand Island Lake, and Bond Falls.