Storm Prediction Center Mesoscale Discussion 237
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Mesoscale Discussion 237 | |
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Mesoscale Discussion 0237 NWS Storm Prediction Center Norman OK 0520 PM CDT Sun Mar 16 2025 Areas affected...Eastern New York into northeast Pennsylvania Concerning...Severe Thunderstorm Watch 54...55... Valid 162220Z - 170015Z The severe weather threat for Severe Thunderstorm Watch 54, 55 continues. SUMMARY...Isolated damaging winds remain possible as a line of storms moves into eastern New York state and northeast Pennsylvania. However, this line is expected to gradually weaken through the evening hours. Watch issuance downstream of WW 55 is not expected. DISCUSSION...Regional radars across NY and PA continue to show strong velocities within/behind a broken line of storms as it moves east/northeast and out of WW 55. This broken line continues to move out of the axis of sustainable buoyancy, and a downtrend in lightning counts has been noted over the past hour, indicative of an overall weakening trend. However, recent GOES imagery and lightning data have shown occasional transient updraft pulses embedded within the line, likely where storm-scale dynamic pressure perturbations are contributing to locally stronger updrafts. Surface observations within the past hour have measured gusts in the vicinity of these stronger segments between 40-45 knots, and the KBGM VWP recently sampled 50 knot winds near 1 km with the passage of the line. The overall weakening trend is expected to continue as the line migrates into a more stable air mass so watch issuance is not expected, but sporadic damaging gusts associated with these transient updrafts pulses will remain possible in the near term (next 1-2 hours) across eastern NY and northeast PA. ..Moore.. 03/16/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BTV...OKX...ALY...PHI...BGM... LAT...LON 41207628 41487615 42087556 42467537 43097510 43537486 43877485 44187489 44547501 44707506 44887501 45017486 44987445 44887404 44567366 44207356 43467352 42837373 42137413 41537460 40977514 40957565 41047602 41207628 |
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2025-03-16 22:30:03