Nov 30, 2020 0100 UTC Day 1 Convective Outlook
Updated: Mon Nov 30 00:51:43 UTC 2020 (20201130 0100Z Day 1 shapefile | 20201130 0100Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20201130 0100 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 45,849 3,602,829 Tallahassee, FL...Wilmington, NC...Albany, GA...Greenville, NC...Jacksonville, NC...
MARGINAL 76,284 10,211,963 Jacksonville, FL...Raleigh, NC...Mobile, AL...Savannah, GA...Gainesville, FL...
Probabilistic Tornado Graphic
20201130 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 % 45,693 3,591,378 Tallahassee, FL...Wilmington, NC...Albany, GA...Greenville, NC...Jacksonville, NC...
2 % 76,657 10,195,138 Jacksonville, FL...Raleigh, NC...Mobile, AL...Savannah, GA...Gainesville, FL...
Probabilistic Damaging Wind Graphic
20201130 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
15 % 22,584 1,519,573 Tallahassee, FL...Albany, GA...Dothan, AL...Valdosta, GA...Panama City, FL...
5 % 99,712 12,248,164 Jacksonville, FL...Raleigh, NC...Mobile, AL...Savannah, GA...Gainesville, FL...
Probabilistic Large Hail Graphic
20201130 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 300051

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0651 PM CST Sun Nov 29 2020

   Valid 300100Z - 301200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF THE
   EASTERN CAROLINAS...AND OVER PARTS OF THE FLORIDA PANHANDLE AND INTO
   SOUTHEASTERN ALABAMA AND SOUTHERN GEORGIA...

   ...SUMMARY...
   Thunderstorms may produce a couple of tornadoes and a few locally
   damaging wind gusts tonight, from southern Alabama/southern
   Georgia/northern Florida to the eastern Carolinas.

   ...Discussion...
   Widespread precipitation is ongoing over the southeastern quarter of
   the country this evening, ahead of the advancing upper low. 
   Thunderstorms -- mainly confined to coastal areas thus far -- have
   intensified slightly over the northeastern Gulf south of Mobile Bay
   and western portions of the Florida Panhandle.  With the northern
   fringe of ample surface-based CAPE now present over coastal portions
   of the Panhandle, a relatively greater risk for severe weather over
   the next few hours is apparent -- warranting maintenance of the SLGT
   risk area.  A locally damaging wind gust or two, along with some
   tornado potential, could evolve with any stronger storm
   moving/developing onshore, as both low-level and deep-layer shear
   remain favorable.

   Meanwhile farther north, appreciable CAPE has remained just off the
   Carolina coast.  However, as the surface low -- now over
   southwestern Alabama -- deepens and shifts quickly
   north-northeastward overnight, some increase in inland instability
   could occur, once the warm front passes to the north of the area. 
   Therefore, the SLGT risk area will be maintained here, as well, to
   cover potential for a tornado or two, through the end of the period.

   ..Goss.. 11/30/2020

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

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