Moderate

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Foothills and Valleys of the North Cascades, Island County, Lowlands of Western Skagit and Northwestern Snohomish Counties, Lowlands of Western Whatcom County, Downtown Everett / Marysville Area, and Shoreline / Lynnwood / South Everett Area. * WHEN...Until 11 AM PDT 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.

The National Weather Service in Phoenix has issued a * Dust Advisory for... Maricopa County in south central Arizona... Pinal County in southeastern Arizona... * Until 1145 AM MST. * At 950 AM MST, a dust channel was located along SR-347 just south of Riggs Rd, and was stationary. HAZARD...Less than one mile visibility. SOURCE...Trained spotters reported. IMPACT...Hazardous travel. * Locations impacted include... Mainly rural areas of Maricopa and Pinal Counties. This includes AZ Route 347 between mile markers 181 and 185.

Webcam and surface weather observations along the northern and central Oregon coast from 9:45 AM PDT this morning showed fog beginning to lift for most locations, resulting in improving visibilities. Although patchy dense fog is still occurring, fog is no longer widespread enough to warrant a Dense Fog Advisory. Therefore, the Dense Fog Advisory will be allowed to expire at 10 AM PDT this morning.

* WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Advisory, minor coastal flooding expected. * WHERE...In Alabama, Mobile Coastal and Baldwin Coastal Counties. In Florida, Escambia Coastal, Santa Rosa Coastal and Okaloosa Coastal Counties. * WHEN...For the High Rip Current Risk, through Monday evening. For the Coastal Flood Advisory, from midnight tonight to 8 AM CDT Monday. * IMPACTS...Flooding of lots, parks, and roads with only

A system moving through the area is bringing with it periods of snow and rain to Isabel Pass. Warming weather during the morning will see snow change over to rain during daytime hours. Cooling conditions overnight will lead to refreezing of previous snow-melt and rain on roadways, creating particularly slick and slippery conditions.

* WHAT...Wintry mix of snow, sleet, and freezing rain. Total snow accumulations of 2 to 4 inches. Light glaze ice accumulation possible. * WHERE...Central Copper Valley, Ernestine, Southern Copper Valley, and Western Copper Valley. * WHEN...Until 10 AM AKDT this morning. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Snow will continue across the southern Copper River Basin this morning. The snow may briefly change to a wintry mix of snow, sleet, and freezing rain before southerly winds

* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. * WHERE...All of Puerto Rico, including Vieques and Culebra, and the US Virgin Islands. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions. They can also increase the risk of heat-related illness among individuals sensitive to

* WHAT...West to Southwest winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...Unalaska and Nikolski. * WHEN...Until 10 PM AKDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel may be difficult. * ADDITIONAL DETAILS...A low pressure system in the southern Bering will bring strong westerly and southwesterly winds beginning this morning and continuing through this evening. Intermittent wind

UPDATED to raise the development potential of 94W to HIGH. ...HEAVY SHOWERS, GUSTY WINDS, AND CHOPPY SEAS LIKELY THIS WEEK FOR KWAJALEIN AND NORTHERN MARSHALL ISLANDS... A developing disturbance known as Invest 94W by the Joint Typhoon Warning Center (JTWC) is located about 60 miles northwest of Kwajalein. Development potential is rated high, meaning tropical cyclone formation is likely within 24 hours. Scatterometry data indicates 15 to 20 kt winds near Kwajalein, Ebadon, Ujae, Bikini, and

* WHAT...Visibility one half mile or less in dense fog. * WHERE...Foothills and Valleys of the North Cascades, Island County, Lowlands of Western Skagit and Northwestern Snohomish Counties, Lowlands of Western Whatcom County, Downtown Everett / Marysville Area, and Shoreline / Lynnwood / South Everett Area. * WHEN...Until 10 AM PDT 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.