SUMMARY: North Alabama has been upgraded to a Winter Storm Warning, with central Alabama remaining under a Winter Weather Advisory. Total snow accumulations will range from 2-4″, with the highest amounts close to the Tennessee state line. Lesser amounts from 1-2″ are possible from Cullman County points south.

DISCUSSION: Winds will begin to increase overnight ahead of the cold front, with moisture quickly following. Precipitation will begin as all rain then change over to snow/sleet then eventually change over to all snow. The snow and sleet may be heavy at times. Temperatures are not expected to rise above freezing on Saturday. Expect surface temps to bottom out and fall below freezing overnight, with bridges and overpasses first. Travel may become difficult due to slick spots.

Additionally, sustained winds of 20 MPH will be possible with the passage of the cold front, with gusts over 40 MPH, especially in higher terrain.

RECOMMENDED ACTIONS: Prepare for power outages due to high winds, plan on slippery road conditions and sudden drops in visibility. Slow down and use caution if you must drive Saturday morning.

NWS GRAPHICS/DETAILS

Winter Storm Warning NWS Huntsville
A Winter Storm Warning has now been issued for all counties in north Alabama and southern Middle Tennessee starting at 9 PM this evening & continuing thru 9 AM Saturday. Significant travel impacts are expected due to the combination of snow and frozen water on roads. A few power outages could also occur due to strong northwest winds that may gust as high as 45 MPH.
Winter Storm Warning/Winter Weather Advisory - NWS Birmingham
Rain is expected to mix with or change to snow for parts of Central Alabama from around Midnight to 8 AM Saturday. Accumulations and impacts are possible for portions of Central Alabama.
Wind Advisory NWS Huntsville
A Wind Advisory is in effect for all counties in northern Alabama and southern Middle Tennessee from 9 PM this evening through 12 PM Saturday. Strong northwesterly winds of 20-25 MPH (with frequent gusts of 35-45 MPH) may result in some tree and power line damage, especially in areas that receive heavy snow.
Wind Advisory - NWS Birmingham
A Wind Advisory is in effect Friday night through Saturday afternoon. Northwesterly winds are expected to be sustained 15-25 mph with gusts around 40 mph.
URGENT - WINTER WEATHER MESSAGE
National Weather Service Huntsville AL
240 PM CST Fri Mar 11 2022

ALZ001>007-009-TNZ076-096-097-121200-
/O.CON.KHUN.WS.W.0004.220312T0300Z-220312T1500Z/
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Jackson-Moore-Lincoln-Franklin TN-
Including the cities of Florence, Muscle Shoals, Sheffield,
Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, Athens,
Huntsville, Decatur, Scottsboro, Lynchburg, Fayetteville,
Winchester, Sewanee, Decherd, Estill Springs, and Cowan
240 PM CST Fri Mar 11 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 9 AM CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 4
  inches with locally higher amounts near 5 inches in the higher
  elevations of southern middle Tennessee. Winds gusting as high
  as 45 mph.

* WHERE...Lauderdale, Colbert, Franklin AL, Lawrence, Limestone,
  Madison, Morgan, Jackson, Lincoln, Moore, and Franklin TN
  counties.

* WHEN...From 9 PM this evening to 9 AM CST Saturday.

* IMPACTS...Snow and ice covered roadways will be possible.
  Travel could be very difficult.

* ADDITIONAL DETAILS...The combination of heavy snow and gusty
  winds may lead to tree and power line damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.


For more information from the National Weather Service visit
http://weather.gov/hun


URGENT - WINTER WEATHER MESSAGE
National Weather Service Huntsville AL
240 PM CST Fri Mar 11 2022

ALZ008-010-016-121200-
/O.UPG.KHUN.WW.Y.0005.220312T0300Z-220312T1500Z/
/O.EXA.KHUN.WS.W.0004.220312T0300Z-220312T1500Z/
Marshall-DeKalb-Cullman-
Including the cities of Albertville, Boaz, Guntersville, Arab,
Fort Payne, Rainsville, and Cullman
240 PM CST Fri Mar 11 2022

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 3
  inches. Winds gusting as high as 45 mph.

* WHERE...Marshall, DeKalb and Cullman counties.

* WHEN...From 9 PM this evening to 9 AM CST Saturday.

* IMPACTS...Snow and ice covered roadways will be possible. Travel
  could be very difficult.

* ADDITIONAL DETAILS...The combination of heavy snow and gusty
  winds may lead to tree and power line damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

URGENT - WINTER WEATHER MESSAGE
National Weather Service Birmingham AL
358 PM CST Fri Mar 11 2022

ALZ017-018-020-121000-
/O.UPG.KBMX.WW.Y.0004.220312T0600Z-220312T1500Z/
/O.EXA.KBMX.WS.W.0001.220312T0600Z-220312T1500Z/
Blount-Etowah-Cherokee-
Including the cities of Oneonta, Gadsden, and Centre
358 PM CST Fri Mar 11 2022

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST SATURDAY...

* WHAT...Snow and sleet expected. Total snow and sleet
  accumulations of up to two inches, with locally higher totals
  possible. Winds gusting as high as 40 mph.

* WHERE...Blount, Etowah and Cherokee Counties.

* WHEN...From midnight tonight to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

&&

$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Birmingham AL
358 PM CST Fri Mar 11 2022

ALZ011-014-121000-
/O.CON.KBMX.WS.W.0001.220312T0600Z-220312T1500Z/
Marion-Winston-
Including the cities of Hamilton and Double Springs
358 PM CST Fri Mar 11 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 9 AM CST SATURDAY...

* WHAT...Snow and sleet expected. Total snow and sleet
  accumulations of up to two inches, with locally higher totals
  possible. Winds gusting as high as 40 mph.

* WHERE...Marion and Winston Counties.

* WHEN...From midnight tonight to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
URGENT - WINTER WEATHER MESSAGE
National Weather Service Birmingham AL
358 PM CST Fri Mar 11 2022

ALZ012-013-015-019-021>028-030>032-034-121000-
/O.CON.KBMX.WW.Y.0004.220312T0600Z-220312T1500Z/
Lamar-Fayette-Walker-Calhoun-Cleburne-Pickens-Tuscaloosa-
Jefferson-Shelby-St. Clair-Talladega-Clay-Sumter-Greene-Hale-Bibb-
Including the cities of Sulligent, Vernon, Fayette, Jasper,
Anniston, Heflin, Carrollton, Tuscaloosa, Birmingham, Hoover,
Columbiana, Pelham, Alabaster, Pell City, Moody, Talladega,
Sylacauga, Ashland, Livingston, Eutaw, Greensboro, Moundville,
and Centreville
358 PM CST Fri Mar 11 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 9 AM CST SATURDAY...

* WHAT...Snow and sleet expected. Total snow and sleet
  accumulations of up to one inch, with locally higher totals
  possible. Winds gusting as high as 40 mph.

* WHERE...Portions of central Alabama.

* WHEN...From midnight tonight to 9 AM CST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.