Moderate

* WHAT...Snow expected, particularly for elevations above 8,500ft. Total snow accumulations up to 4 to 6 inches in upper Little and Big Cottonwood, with higher amounts expected for elevations above 9,000ft. * WHERE...Wasatch Mountains South of I-80. * WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday. * IMPACTS...Winter driving conditions are expected. * ADDITIONAL DETAILS...Early season snowfall on roadways may pose a significant risk to under-prepared travelers. While minor snow

At 358 PM AST, Doppler radar was tracking a line of strong thunderstorms extending from Arecibo eastward into Florida, and is nearly stationary. Fallen trees and power lines already reported in the area. HAZARD...Landspouts, wind gusts up to 40 mph, and pea size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...

* WHAT...For the Beach Hazards Statement, dangerous rip currents and elevated surf are expected. For the Coastal Flood Advisory, minor to moderate coastal flooding can be expected near times of high tide. * WHERE...Ventura County Beaches. * WHEN...For the Coastal Flood Advisory, until 2 PM PDT Tuesday. For the Beach Hazards Statement, through Tuesday afternoon. * IMPACTS...Minor to moderate flooding of sea water is likely around high tide at low-lying beach and harbor areas that is

* WHAT...For the Beach Hazards Statement, dangerous rip currents and elevated surf are expected. For the Coastal Flood Advisory, minor to moderate coastal flooding can be expected near times of high tide. * WHERE...Santa Barbara County Southwestern Coast and Santa Barbara County Southeastern Coast. * WHEN...For the Coastal Flood Advisory, until 10 PM PDT this evening. For the Beach Hazards Statement, through Tuesday afternoon. * IMPACTS...Minor to moderate flooding of sea water is likely

* WHAT...For the Beach Hazards Statement, dangerous rip currents and elevated surf are expected. For the Coastal Flood Advisory, minor to moderate coastal flooding can be expected near times of high tide. * WHERE...Malibu Coast and Los Angeles County Beaches. * WHEN...For the Coastal Flood Advisory, until 2 PM PDT Tuesday. For the Beach Hazards Statement, through Tuesday afternoon. * IMPACTS...Minor to moderate flooding of sea water is likely around high tide at low-lying beach and harbor areas that is

* WHAT...North winds 20 to 30 kt with a few gusts up to 40 kt and steep to very steep wind-driven seas of 8 to 12 ft. Winds ease to 10 to 20 kt and seas gradually subside to 6 to 8 ft Monday night and Tuesday, but seas remain hazardous to small craft. * WHERE...All areas, with the strongest winds and steepest seas from around Port Orford southward. * WHEN...For the Hazardous Seas Warning, until 11 PM PDT this evening. For the Small Craft Advisory, from 11 PM this evening to 11 PM PDT Wednesday.

* WHAT...North winds 20 to 30 kt with a few gusts up to 40 kt and steep to very steep wind-driven seas of 8 to 12 ft. Winds ease to 10 to 20 kt and seas gradually subside to 6 to 8 ft Monday night and Tuesday, but seas remain hazardous to small craft. * WHERE...All areas, with the strongest winds and steepest seas from around Port Orford southward. * WHEN...For the Small Craft Advisory, until 11 PM PDT Wednesday. For the Hazardous Seas Warning, until 11 PM PDT this evening.

* WHAT...Visibility as low as one quarter of a mile in dense fog. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From 9 PM this evening to noon MDT Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Below freezing temperatures may lead to a glaze of ice on surfaces, most notably on bridges and overpasses. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Dangerous rip currents. * WHERE...Gulf-facing beaches, including the Matagorda Peninsula, Brazoria County beaches, Galveston Island and the Bolivar Peninsula. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard and away from rocks, jetties, and piers. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If

The combination of record-high temperatures and elevated humidity levels will produce heat index values in the upper 90s to lower 100s Tuesday afternoon across much of southeast Missouri, southwest Illinois, and far western Kentucky. Those planning to be outdoors for extended periods on Tuesday should follow heat safety measures, such as staying hydrated and taking frequent breaks in a shaded or air-conditioned location.