Winter Weather To Impact Alabama Beginning Tuesday

Aiming To Prepare, Not To Scare

Winter Weather To Impact Alabama Beginning Tuesday

Another arctic front will impact Alabama beginning Tuesday morning. This front will have more associated moisture than the previous, and given the length of prolonged cold temperatures, more substational travel impacts are certaintly possible.

Winter Weather Advisories are in effect beginning Tuesday morning for north and central Alabama

 

URGENT – WINTER WEATHER MESSAGE
National Weather Service Huntsville AL
354 AM CST Mon Jan 15 2018

…Accumulating snow expected on Tuesday…

.A strong cold front will move through the region late Monday
night, with temperatures falling below freezing by midnight.
Meanwhile, a band of light snow is expected to develop behind the
front and enter northwest Alabama by sunrise on Tuesday. This band
of light snow will continue to move through the area during the
day before exiting the area shortly after sunset. Although
snow accumulations will generally remain below 1 inch,
temperatures are expected to be in the lower to mid 20s areawide.
This could create hazardous travel conditions through the day.

ALZ001>005-TNZ076-096-152100-
/O.NEW.KHUN.WW.Y.0003.180116T0900Z-180117T0000Z/
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Moore-Lincoln-
Including the cities of Florence, Muscle Shoals, Sheffield,
Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, Athens,
Lynchburg, and Fayetteville
354 AM CST Mon Jan 15 2018

…WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
TUESDAY…

* WHAT…Light snow expected. Plan on slippery road conditions,
including during the morning commute on Tuesday. Total snow
accumulations of up to one inch are expected.

* WHERE…Portions of north central and northwest Alabama and
southern middle Tennessee.

* WHEN…From 3 AM to 6 PM CST Tuesday.

* ADDITIONAL DETAILS…Be prepared for reduced visibilities at
times.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

$$

ALZ006>010-016-TNZ097-152100-
/O.NEW.KHUN.WW.Y.0003.180116T1200Z-180117T0300Z/
Madison-Morgan-Marshall-Jackson-De Kalb-Cullman-Franklin TN-
Including the cities of Huntsville, Decatur, Albertville, Boaz,
Guntersville, Arab, Scottsboro, Fort Payne, Rainsville, Cullman,
Winchester, Sewanee, Decherd, Estill Springs, and Cowan
354 AM CST Mon Jan 15 2018

…WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 9 PM CST
TUESDAY…

* WHAT…Light snow expected. Plan on slippery road conditions,
including during the evening commute on Tuesday. Total snow
accumulations of up to one inch are expected.

* WHERE…Portions of north central and northeast Alabama and
southern middle Tennessee.

* WHEN…From 6 AM to 9 PM CST Tuesday.

* ADDITIONAL DETAILS…Be prepared for reduced visibilities at
times.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

 

URGENT – WINTER WEATHER MESSAGE
National Weather Service Birmingham AL
145 PM CST Mon Jan 15 2018

…SNOW MAY BRING SIGNIFICANT IMPACTS TO MUCH OF CENTRAL ALABAMA
TUESDAY MORNING THROUGH EARLY WEDNESDAY MORNING…

.An Arctic cold front will enter Northwest Alabama Tuesday
morning and move southeastward across Central Alabama Tuesday
afternoon into Tuesday night. This front should have enough
moisture and lift to generate a band of light to moderate snow,
which could potentially affect all of our forecast area. We will
need to watch and see if a second band can develop across the
southern third of the area during the evening and provide a higher
total down there as well. Though snowfall amounts are expected to
remain less than 2 inches, impacts to travel could be significant
due to temperatures falling into the 20s as the snow occurs.

ALZ037>050-160345-
/O.NEW.KBMX.WW.Y.0002.180116T1200Z-180117T1200Z/
Tallapoosa-Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-
Montgomery-Macon-Bullock-Lee-Russell-Pike-Barbour-
Including the cities of Alexander City, Dadeville, Valley,
Lanett, Lafayette, Demopolis, Linden, Selma, Prattville,
Fort Deposit, Hayneville, Wetumpka, Tallassee, Montgomery,
Tuskegee, Union Springs, Auburn, Opelika, Phenix City, Troy,
and Eufaula
145 PM CST Mon Jan 15 2018

…WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM
CST WEDNESDAY…

* WHAT…Snow expected. Plan on slippery road conditions,
especially during the evening commute on Tuesday. Total snow
accumulations of one quarter to one half inches are expected,
with locally higher totals of up to one inch.

* WHERE…Portions Southern and Eastern Central Alabama.

* WHEN…From 6 AM Tuesday to 6 AM CST Wednesday.

* ADDITIONAL DETAILS…Be prepared for reduced visibilities at
times.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for snow, means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.

MODEL DATA

Current HRRR run shows the snow entering northwest Alabama around 6:00am:

http://climate.cod.edu/data/forecast/animations/23Z-20180115_HRRRSE_prec_ptype-11-18-50-100.gif

Temperatures at the arrival of the precipitation are shown to already be below freezing, and they will only drop further

http://climate.cod.edu/data/forecast/animations/23Z-20180115_HRRRSE_sfc_temp-11-18-50-100.gif

Total snow accumulation with this system generally stays below 1″

http://climate.cod.edu/data/forecast/animations/18Z-20180115_NAMSE_prec_snow-15-84-50-100.gif

BITTERLY COLD: Aside from the snow, things will get really cold with this system. We will struggle to break freezing until Thursday. The good news is though there will be abundant sunshine on Wednesday that will aid in drying.

 

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