Winter Weather Advisory issued for early Wednesday through Tennessee Valley

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Winter Weather

  • What: Winter Weather Advisory
  • When: Wednesday 3am-Noon
  • Who: Franklin, Lincoln, Moore (TN); Lauderdale, Limestone, Madison, Jackson, DeKalb (AL)
  • The Winter Weather Advisory includes the cities of Huntsville, Decatur and Florence
  • Why: Sleet and freezing rain possible early Wednesday morning

There could be problems for the early morning commute Wednesday as a brief period of sleet and freezing rain is possible in the Tennessee Valley (see the forecast graphics in the gallery below). Elevated surfaces, bridges and overpasses are prone to be icy early Wednesday before everything changes to rain by lunchtime. Stay tuned for further updates. Don’t forget our apps if you are on the go! You can also click here for the latest forecast discussion.

(Click here for the latest discussion)

What is a Winter Weather Advisory?

You may be familiar with terms like watches and warnings, since they are used to convey weather hazards for situations like severe weather, flooding, and winter weather. However, what is a winter weather advisory, and how is it different from a watch or a warning?

The answer lies in the amount of wintry precipitation that is forecast and the impacts that they are expected to create.

The following information is from the National Weather Service in Huntsville:

Winter Storm Watch is issued when conditions are favorable for hazardous winter weather conditions to develop.  Generally, this type of watch is issued for weather conditions that could occur 24 to 48 hours in the future. The NWS in Huntsville issues a Winter Storm Watch when one or more of the following is possible (50% or greater confidence) during the next 12 to 36 hours:
· Sleet and/or snowfall of 2+ inches in 12 hours, or 4+ inches in 24 hours
· Accumulation of freezing rain (ice) of 0.25″ (1/4 inch) or greater

A Winter Weather Advisory is issued for a winter weather situation that causes significant inconveniences, but does not meet warning criteria (see below).  The winter weather can still be life threatening if caution is not exercised, and frequently a winter weather advisory will be issued if travel impacts can be expected.   A Winter Weather Advisory is issued if more than one type of hazardous winter weather is expected, is occurring, or is imminent:
· Sleet and/or snowfall of 1-2 inches in 12 hours.
· Accumulation of freezing rain (ice) up to 0.25″ (1/4 inch)

Keep in mind that in the hierarchy of winter watches, advisories, and warnings, a winter storm advisory is actually a “bigger deal” than a winter storm watch!

A Winter Storm Warning is issued when a combination of hazardous winter weather is either occurring or is expected to occur.  Winter Storm Warnings are issued when one or more of the following is expected:
· Sleet and/or snowfall of 2+ inches in 12 hours, or 4+ inches in 24 hours
· Accumulation of freezing rain (ice) of 0.25″ (1/4 inch) or greater

No matter the alert, always be aware of the changing weather conditions where you live. You can do that by watching us on-air as well as monitoring the WHNT LiveAlert19 app. We will also have the latest updates available on Facebook as well as Twitter.