Oct 6, 2020 1730 UTC Day 2 Convective Outlook
Updated: Tue Oct 6 17:29:11 UTC 2020 (20201006 1730Z Day 2 shapefile | 20201006 1730Z Day 2 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20201006 1730 UTC Day 2 Outlook Graphic
Day 2 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MARGINAL 52,879 8,388,309 Boston, MA...Rochester, NY...Syracuse, NY...Manchester, NH...Lowell, MA...
Probabilistic Tornado Graphic
20201006 1730 UTC Day 2 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 2 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Damaging Wind Graphic
20201006 1730 UTC Day 2 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 2 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
5 % 51,596 7,831,588 Boston, MA...Syracuse, NY...Manchester, NH...Lowell, MA...Cambridge, MA...
Probabilistic Large Hail Graphic
20201006 1730 UTC Day 2 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 2 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   SPC AC 061729

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1229 PM CDT Tue Oct 06 2020

   Valid 071200Z - 081200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS UPSTATE NEW YORK
   AND NEW ENGLAND...

   ...SUMMARY...
   Thunderstorms associated with marginally severe wind gusts will be
   possible across parts of Upstate New York through northern New
   England Wednesday afternoon and evening.

   ...Upstate New York/northern New England...
   An upper-level trough will move eastward from the lower Great Lakes
   Wednesday morning into New England Wednesday afternoon. At the
   surface, a low will deepen and move across southern Quebec. An
   associated cold front will advance eastward across New York and into
   New England. Ahead of the front, a corridor of weak instability will
   be in place from Lake Ontario eastward into central New England.
   Scattered thunderstorms are forecast to develop along this corridor
   during the day as the cold front moves eastward across the region.
   MLCAPE near 500 J/kg along with 850 mb winds of 40 to 50 kt will
   create conditions supportive of marginally severe wind gusts. The
   wind damage potential should remain very isolated due to the weak
   instability and does not warrant the issuance of a slight risk.

   ..Broyles.. 10/06/2020

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   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0600Z