National Weather Service United States Department of Commerce

Wintry Weather in the Northern Tier; Fire Weather Threats in Southern California

Two Canadian systems will produce heavy snow downwind of Great Lakes Erie and Ontario, and a wintry mix in the Mississippi and Ohio Valleys. Snow, heavy in places, will spread across the Rockies and 4-Corners area through early this week. A developing system in southern California may produce high winds and critical fire weather threats, and, areas of heavy rain early this week. Read More >


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  • Forecast Products
    includes daily public forecasts, aviation forecasts and fire weather forecasts
  • Climate Products
    includes daily and monthly climate records, record reports, daily agricultural and cooperative observer reports and upper air data
  • Severe Weather Products
    includes watches and warnings, plus follow-up statements for tornadoes, severe thunderstorms and flooding
  • Winter Weather Products
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(Disclaimer: Please note that not all products are issued routinely. Please check dates and times of products! Also, information may change in this product guide from time to time. We will make the effort to update as soon as possible after any changes are made.)