A series of winter storms will track from the Upper Midwest to off the Northeast U.S. coast into next week bringing rounds of moderate to locally heavy rain south of their track and ice and snow to the north. Read More >

Winter weather related Warnings, Watches and Advisories are issued by your local National Weather Service office. Each office knows the local area and will issue Warnings, Watches or Advisories based on local criteria.

7 hours ago · More than half the country was under winter weather-related warnings from the National Weather Service (NWS) Wednesday morning, with forecasters anticipating up to 22 inches of snow in some areas.

A winter storm event (sleet, snow, freezing rain, snow and blowing snow, or a combination of events) is expected to meet or exceed local winter weather advisory criteria in the next 12 to 36 hours but stay below warning criteria.

Winter Storm Warning. A Winter Storm Warning is issued when a significant combination of hazardous winter weather is occurring or imminent. Significant and hazardous winter weather is defined as a combination of: 1) 5 inches or more of snow/sleet within a 12-hour period or 7 inches or more of snow/sleet within a 24-hour period AND/OR

URGENT - WINTER WEATHER MESSAGE National Weather Service Portland OR 105 PM PST Tue Feb 4 2025 ...WIDESPREAD SNOW SHOWERS FROM TUESDAY NIGHT THROUGH WEDNESDAY... . Snow is expected late Tuesday through Wednesday across southwest Washington and northwest Oregon.

This website is designed to teach you how to stay safe before, during and after a winter storm. You will find information on winter alerts, science and hazards, snow coverage maps, and information describing the different types of winter storms.

A prolonged atmospheric river event will continue to bring moderate to heavy rain to northern and central California through the Pacific Northwest with mountain snow in the Cascades and northern Rockies today into next week. Read More > Comments? Questions? Please Contact Us.

The National Weather Service (NWS) National Winter Program is announcing new Winter Storm Warning (WSW) criteria for Heavy Snow, which will be used by all Contiguous United States Weather Forecast Offices (WFOs) beginning this winter season. The primary reason for changing the NWS snow criteria is to increase consistency among neighboring WFOs.

The alerts web service displays NWS watches, warnings, advisories, and similar products. Click the main menu down-arrow for a quick guide and documentation. Select a location option to begin your search for alerts.