Official severe-weather alerts, warning areas, and disaster updates.
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Locations and boundaries are as supplied by each source. Area statistics without an exact location are placed at the Census center of their city, county or ZIP code and labeled approximate. Refer to official instructions for current conditions.
...The Flood Advisory continues for the following rivers in South Carolina... Congaree River At Congaree River at Columbia affecting Lexington and Richland Counties. * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Congaree River at Congaree River at Columbia. * WHEN...Until Thursday afternoon. * IMP…
* WHAT...For the Coastal Flood Advisory, Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, increased risk of rip currents and sneaker waves expected with breaking waves up to 16 feet. * WHERE...San Francisco, Northern Monte…
* WHAT...For the Coastal Flood Advisory, Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, increased risk of rip currents and sneaker waves expected with breaking waves up to 16 feet. * WHERE...San Francisco, Northern Monte…
* WHAT...Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along the San Pablo Bay. * WHEN...Until 4 PM PDT Wednesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. High tides will re…
* WHAT...Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along the San Francisco and Monterey Bays. * WHEN...Until 3 PM PDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. Hi…
* WHAT...Increased risk of rip currents and sneaker waves expected with breaking waves up to 16 feet. * WHERE...Coastal North Bay Including Point Reyes National Seashore and San Francisco Peninsula Coast Counties. * WHEN...Through Monday evening. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazard…
* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...Southwest Bighorn Basin, Southeast Bighorn Basin, Cody Foothills, and North Bighorn Basin. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoo…
Some patchy dense fog will restrict visibilities to less than one-quarter of a mile across valleys and lower elevation areas of Northwest Georgia. The fog should lift after 10 AM. If driving this morning, slow down, use low-beam headlights and leave extra distance between you and the vehicle in front of you.
As low clouds clear from west to east early this morning areas of fog are developing. Some of this fog could become locally dense, with visibility of a quarter mile or less. If driving in thick fog, use low beam headlights, slow down, and leave plenty of distance between vehicles. The fog will start to dissipate in mos…
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...The Forsyth burn scar in central Washington County in southwestern Utah... * WHEN...Until 900 AM MDT. * IMPACTS...Excessive rainfall over the burn scar will result in debris flow. The debris flow can consist of rock, mud, vegetation and other loose mat…
* WHAT...Dangerous rip currents. * WHERE...Gulf-facing beaches, including the Matagorda Peninsula, Brazoria County beaches, Galveston Island and the Bolivar Peninsula. * WHEN...Through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard and aw…
* WHAT...A very long period westerly swell will increase the threat of sneaker waves. * WHERE...Coastal Del Norte, Northern Coastal Humboldt, Southwestern Humboldt and Coastal Mendocino Counties. * WHEN...Through this evening. The risk will increase as winds weaken. * IMPACTS...Large, unexpected waves can sweep across …
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Southwestern Mesa County in west central Colorado in and around the Turner Gulch Burn Scar... * WHEN...Until 700 AM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 356 AM MDT, Doppler radar indicated…
* AFFECTED AREA... Yuma, Kit Carson, Cheyenne KS and Dundy counties. * TIMING... 9 AM MDT to 4 PM MDT (10 AM MDT to 5 PM CDT). Duration of strong winds and low humidities together expected to be 1 to 2 hours. * WINDS... West southwesterly 15 to 30 mph in the morning, decreasing through the afternoon. * RELATIVE HUMIDIT…
* WHAT...Wet snow. Additional snow accumulations up to one inch. * WHERE...Hill County and Northern Blaine County. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Plan on slippery road conditions. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained …
* WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Bears Paw Mountains and Southern Blaine, Eastern Glacier, Western Toole, and Central Pondera, and Eastern Toole and Liberty. * WHEN...Until 6 AM MDT early this morning. * IMPACTS...Plan on slippery road conditions. Slow down and use caution while tr…
Patchy dense fog can be expected this morning. Motorists should expect rapidly changing visibility, down to near zero at times. Remember to use your low beam headlights in fog, slow down, and provide plenty of braking distance between yourself and any vehicles in front of you.
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Clark and Hamlin Counties. * WHEN...Until 1 PM CDT 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.
...The National Weather Service in Mount Holly has issued a Flood Warning for the following rivers in Delaware... Red Clay Creek At Wooddale affecting New Castle County. For the Red Clay Creek...including Wooddale...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE…
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Warren, Darke, Mercer, and Montgomery Counties. * WHEN...Until 11 AM EDT 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 Mount Holly has issued a Flood Warning for the following rivers in Pennsylvania... Chester Creek Near Chester affecting Delaware County. For the Chester Creek...including Chester...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE…
With clear skycover and light winds, patchy dense fog has developed across the county. Observed visibilities have dropped to 1/4 mile at times. Motorists should be prepared for rapid changes in visibility. Allow for greater distances between vehicles, use low beam headlights, and allow extra time to reach your destinat…
Areas of fog, some potentially dense and reducing visibility to as low as one quarter mile, may be quickly encountered this morning while traveling. The fog may persist through daybreak. The reduced visibility could make driving conditions hazardous. If traveling, reduce speed, use low beam headlights, and allow plenty…
Patchy dense fog with visibility of one quarter mile or less will be present this morning. Motorists should be prepared for rapid changes in visibility. Allow for greater distances between vehicles, use low beam headlights, and allow extra time to reach your destination.
* WHAT...Southwest winds 10 to 20 mph with gusts up to 45 mph. * WHERE...Indian Wells Valley, Mojave Desert, and 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…
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