Jan 21, 2022 1630 UTC Day 1 Convective Outlook
Updated: Fri Jan 21 16:17:19 UTC 2022 (20220121 1630Z Day 1 shapefile | 20220121 1630Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20220121 1630 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MARGINAL 4,476 5,293,769 Miami, FL...Hialeah, FL...Fort Lauderdale, FL...Pembroke Pines, FL...Hollywood, FL...
Probabilistic Tornado Graphic
20220121 1630 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
No Risk Areas Forecast
Probabilistic Damaging Wind Graphic
20220121 1630 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 % 4,446 5,290,293 Miami, FL...Hialeah, FL...Fort Lauderdale, FL...Pembroke Pines, FL...Hollywood, FL...
Probabilistic Large Hail Graphic
20220121 1630 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
5 % 4,456 5,325,883 Miami, FL...Hialeah, FL...Fort Lauderdale, FL...Pembroke Pines, FL...Hollywood, FL...
   SPC AC 211617

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1017 AM CST Fri Jan 21 2022

   Valid 211630Z - 221200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
   ACROSS SOUTHEAST FL...

   ...SUMMARY...
   Isolated, marginally severe hail or strong outflow gusts may occur
   this afternoon across southeast Florida.

   ...Southeast FL this afternoon...
   Surface heating is underway within cloud break across southeast FL,
   immediately southeast of a stalled front.  Temperatures warming into
   the upper 70s with dewpoints near 70 F will result in MLCAPE near or
   just above 1000 J/kg this afternoon.  Background forcing for ascent
   will be weak, so localized ascent along the stalled front and any
   diffuse sea breeze boundaries suggest that only isolated storms will
   form this afternoon across southeast FL.  Midlevel lapse rates will
   not be particularly steep (6.5-7 C/km) and low-level flow will
   remain weak, but the moderate buoyancy and some stronger flow aloft
   (as reflected in effective bulk shear near 35 kt) could support a
   low-end organized/supercell storm capable of producing marginally
   severe hail and isolated strong outflow gusts later this afternoon.

   ..Thompson/Weinman.. 01/21/2022

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   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z