Sep 16, 2020 0100 UTC Day 1 Convective Outlook
Updated: Wed Sep 16 00:47:06 UTC 2020 (20200916 0100Z Day 1 shapefile | 20200916 0100Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20200916 0100 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 13,062 1,150,563 Pensacola, FL...Panama City, FL...Ferry Pass, FL...Wright, FL...Brent, FL...
MARGINAL 12,978 1,136,166 Mobile, AL...Tallahassee, FL...Prichard, AL...Pascagoula, MS...Enterprise, AL...
Probabilistic Tornado Graphic
20200916 0100 UTC Day 1 Tornado Probabilities 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
5 % 13,141 1,155,283 Pensacola, FL...Panama City, FL...Ferry Pass, FL...Wright, FL...Brent, FL...
2 % 12,771 1,103,794 Mobile, AL...Tallahassee, FL...Prichard, AL...Pascagoula, MS...Enterprise, AL...
Probabilistic Damaging Wind Graphic
20200916 0100 UTC Day 1 Damaging Wind Probabilities 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 % 25,902 2,258,403 Mobile, AL...Tallahassee, FL...Pensacola, FL...Panama City, FL...Ferry Pass, FL...
Probabilistic Large Hail Graphic
20200916 0100 UTC Day 1 Large Hail Probabilities 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 160047

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0747 PM CDT Tue Sep 15 2020

   Valid 160100Z - 161200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
   SOUTHERN ALABAMA AND THE FLORIDA PANHANDLE...

   ...SUMMARY...
   A few tornadoes may occur across portions of southern Alabama and
   the Florida Panhandle tonight in association with Hurricane Sally.

   ...Hurricane Sally...

   Longer-looped radar imagery suggests Hurricane Sally is beginning to
   drift a bit east as it edges very slowly north toward the coast.
   Center of circulation is about 50 mi south-southeast of Mobile Bay
   and if the current movement is maintained, landfall may occur near
   the AL/FL Panhandle border early in the day2 period. Deeper
   convective bands with lightning remain confined to the eastern
   semicircle of this system where higher buoyancy is observed. With
   offshore flow expected to be maintained west of MOB, have opted to
   lower tornado probabilities west of the circulation center. As upper
   70s surface dew points begin to spread inland across the FL
   Panhandle, there should be an increase in stronger
   convection/supercell activity. Tornado threat should gradually
   increase across this region as the night progresses.

   ..Darrow.. 09/16/2020

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z