New Orleans, LA...Birmingham, AL...Baton Rouge, LA...Metairie, LA...Lafayette, LA...
Probabilistic Tornado Graphic
Probability of a tornado within 25 miles of a point. Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point.
Day 1 Tornado Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
2 %
53,027
5,531,927
New Orleans, LA...Birmingham, AL...Baton Rouge, LA...Jackson, MS...Metairie, LA...
Probabilistic Damaging Wind Graphic
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point. Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point.
Day 1 Wind Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
5 %
52,891
5,522,621
New Orleans, LA...Birmingham, AL...Baton Rouge, LA...Jackson, MS...Metairie, LA...
Probabilistic Large Hail Graphic
Probability of hail 1" or larger within 25 miles of a point. Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point.
Day 1 Hail Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
SPC AC 140056
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0656 PM CST Sun Dec 13 2020
Valid 140100Z - 141200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS SOUTHERN
LOUISIANA AND MISSISSIPPI INTO CENTRAL ALABAMA...
...SUMMARY...
A few damaging wind gusts or a brief tornado remain possible across
parts of southern Louisiana into southern Mississippi this evening
and central Alabama overnight.
...Southern LA into southwest MS and central AL...
The Marginal Risk has been expanded northeastward into central
Alabama, along the forecast surface low track. Although instability
is currently weak into central MS and AL, warm advection and very
strong shear profiles will allow for dewpoints to 63-65 F later
tonight. When combined with the lift with the shortwave trough, the
result is a conditional threat of a few damaging wind gusts, or
brief tornado.
..Jewell.. 12/14/2020
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z