National Weather Service United States Department of Commerce

Snow Will Persist in the Northeast and Great Lake States

Heavy Lake Effect snow will continue to the lee of the Great Lakes for the next couple of days. Snow will also return to the Northeast by Tuesday as another front moves in. Bitter cold wind chills can be expected in the Upper Mississippi Valley. Freezing temperatures will even impact central Florida. Meanwhile, elevated fire weather conditions will persist in southern California. Read More >

With an elevated fire weather threat today, here are some tips to help prevent wildfires!
It's quite chilly this morning with temperatures in the teens and 20s across most of the region, with a few spots in the lower 30s.
Did you know that the shortest day of the year is just a few days away? On that day, we (North & Central TX) will have approximately 10 hours of daylight. This is around 4 hours less daylight than on June Solstice. The Winter Solstice (when we start the astronomical winter) will be on Thursday December 21st, 2017.

 
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Whenever winter weather threatens, your National Weather Service Forecast Office will issue watches, warnings, advisories, and statements to keep you informed and prepared.

Winter Storm Outlook

Issued when there is a good chance of a major winter weather event beyond 36 hours.

Winter Storm Watch

Issued when the following conditions are possible within 12 to 36 hours: heavy snowfall of 4 or more inches in 12 hours or 6 or more inches in 24 hours; freezing rain and/or freezing drizzle accumulating to a depth of 0.25 inches or greater; or heavy sleet accumulating to a depth of 1/2 inch or more.

Winter Storm Warning

Issued when the hazardous winter weather conditions defined above are occurring or expected to occur within 12 hours.

Freeze Warning

Issued for the first occurrence of freezing temperatures in the fall, for late freezes during the spring, or for a freeze expected to occur after a prolonged warm spell.

Winter Weather Advisory

Issued when either or all of the following are expected. Snow accumulations less than 4 inches in 6 hours, or less than 6 inches in 24 hours OR freezing rain accumulation less than 0.25 inch. OR freezing drizzle with little or no accumulation.

Wind Chill Advisory

Issued when forecast wind chill values will be below -20 degrees.