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Saturday, July 29, 2023 Thunderstorms


weatherwiz
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8 minutes ago, radarman said:
Interesting that machine learning
convective probs are highest across the Mid Atlantic into NJ.
Thus lots of moving parts here yielding a below average
convective forecast

Anyone have a link for this model?

CSU I’m guessing

http://schumacher.atmos.colostate.edu/hilla/csu_mlp/csu_severe.php?date=20230729&version=2021&product=severe_ml_day1_all_gefso&day=1&day_str=0730&init=00

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 Mesoscale Discussion 1770
   NWS Storm Prediction Center Norman OK
   1033 AM CDT Sat Jul 29 2023

   Areas affected...southern New England into parts of eastern New York
   and far northern New Jersey

   Concerning...Severe potential...Watch likely 

   Valid 291533Z - 291730Z

   Probability of Watch Issuance...80 percent

   SUMMARY...A steady increase in thunderstorm coverage is expected
   through the afternoon, with locally strong wind gusts becoming more
   likely as the airmass destabilizes.  WW issuance will likely be
   needed.

   DISCUSSION...Latest visible satellite loop shows partly sunny
   conditions across southern New England and into parts of eastern New
   York and vicinity.  Daytime heating through late morning has
   supported modest destabilization, which will continue into the
   afternoon given dewpoints in the upper 60s to low 70s.  As an MCV
   now crossing eastern Lake Erie continues to shift eastward, expect
   storm coverage to increase as afternoon mixed-layer CAPE values rise
   into the 1000 to 1500 J/kg range.

   While low-level flow is forecast to remain weaker as compared to
   areas farther south, mid-level westerlies near 30 kt will support
   potential for organized storms and some upscale growth into
   small-scale bands.  Locally strong/damaging wind gusts are expected
   with the strongest storms, through the afternoon hours, and this
   potential appears sufficient that WW issuance will likely be
   required in the next hour.

   ..Goss/Thompson.. 07/29/2023

   ...Please see www.spc.noaa.gov for graphic product
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18 minutes ago, radarman said:
Interesting that machine learning
convective probs are highest across the Mid Atlantic into NJ.
Thus lots of moving parts here yielding a below average
convective forecast

Anyone have a link for this model?

I am rather skeptical about that thing...but I don't use it enough to really have a solid opinion but from the little I've really used it...meh.

I'm so sick of all this AI crap

  • Haha 3
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URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 568
   NWS Storm Prediction Center Norman OK
   130 PM EDT Sat Jul 29 2023

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northern Connecticut
     Massachusetts
     Extreme southern Maine
     Southern New Hampshire
     South central New York
     Northeast Pennsylvania
     Rhode Island
     Southern Vermont
     Coastal Waters

   * Effective this Saturday afternoon and evening from 130 PM until
     900 PM EDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph possible
     Isolated large hail events to 1 inch in diameter possible

   SUMMARY...Scattered thunderstorms are expected this afternoon from
   New York and northeast Pennsylvania eastward into parts of southern
   New England.  The storm environment will favor a mix of multicell
   clusters and some supercells capable of producing damaging winds and
   isolated large hail through late evening.

   The severe thunderstorm watch area is approximately along and 55
   statute miles north and south of a line from 50 miles north of
   Wilkesbarre PA to 30 miles east of Boston MA. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU8).
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