Moderate

* WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Portions of northwest Illinois and east central, northeast, and southeast Iowa. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...High temperatures of 85-95 degrees and very warm overnight lows. * WHERE...Los Angeles County Beaches, Los Angeles County Inland Coast including Downtown Los Angeles, Malibu Coast, Palos Verdes Hills, Santa Barbara County Southeastern Coast, Santa Barbara County Southwestern Coast, Ventura County Beaches, and Ventura County Inland Coast. * WHEN...Until 6 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Humid conditions will add to heat discomfort.

* WHAT...Heat index values up to 114 expected. * WHERE...Bee, Coastal Kleberg, Coastal Nueces, Coastal San Patricio, Duval, Goliad, Inland Calhoun, Inland Kleberg, Inland Nueces, Inland Refugio, Inland San Patricio, Jim Wells, Live Oak, McMullen, and Victoria Counties. * WHEN...From noon today to 7 PM CDT this evening. * 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...Areas of fog with visibilities around a half mile or less. WHERE...Portions of southern and south central Iowa. WHEN...Now through 930 AM. IMPACTS...Drivers should be alert for reduced visibility at times. PREPAREDNESS AND PRECAUTIONARY ACTIONS...If driving this morning, please use low beam headlights.

The combination of temperatures warming into the lower to mid 90s with moderate levels of humidity will produce heat indices near 105 this afternoon across much of the South Carolina Lowcountry and Southeast Georgia. Those participating in outside September 11th memorial activities should be prepared for this level of heat and humidity today. Scattered showers and thunderstorms will produce relief in some areas later today. Cloud-to-ground lightning will pose a risk to anyone

* WHAT...Northwest winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Mojave Desert Slopes. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Highways impacted include State Routes 14, 58, and 178 and US Highway 395. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...Visibility one quarter mile in dense fog. * WHERE...Henry IA, Jefferson, Van Buren, and Washington Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Cedar, Clinton, Jackson, Jones, and Dubuque Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility less than one quarter mile or less in dense fog. * WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.