ACUS11 KWNS 171813
SWOMCD
SPC MCD 171812=20
PAZ000-WVZ000-OHZ000-MIZ000-INZ000-171945-
Mesoscale Discussion 0472
NWS Storm Prediction Center Norman OK
0112 PM CDT Wed Apr 17 2024
Areas affected...extreme eastern IN...much of OH...and western PA
Concerning...Tornado Watch 122...
Valid 171812Z - 171945Z
The severe weather threat for Tornado Watch 122 continues.
SUMMARY...Storms moving into northwest OH may intensify the next 1-2
hours. All severe hazards remain possible across Tornado Watch 122.
A downstream watch will likely be needed in the next couple of hours
across eastern OH into western PA.
DISCUSSION...Convection has slowly intensified into early afternoon
as storms move into a somewhat more unstable airmass. Stronger
heating has allowed low-level lapse rates to steepen ahead of the
line of convection. This will support potential for increasing
gusts. Furthermore, low-level instability remains quite large, with
0-3 km MLCAPE greater than 125 J/kg. Regional VWP data shows
enlarged, and favorably curved low-level hodographs, and low-level
rotation has been noted in velocity signatures via region radars.
Further intensification of these cells is expected over the next
couple hours across northwest into central Ohio.=20
As convection continues eastward, a similar environment is expected
to extend across parts of eastern OH into western PA. A downstream
watch will likely be needed by 20z/4pm EDT.
..Leitman.. 04/17/2024
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8lyZ2PdLFyByWBNUwwC7yJm8rEKj_Y1WKgp5oJfBfqI-SYYCMPlSo5Su7ky_6tuS7m0aZ13fn= oxorwf7grQDleLi-3w$ for graphic product...
ATTN...WFO...PBZ...RLX...CLE...ILN...DTX...IWX...IND...
LAT...LON 39348363 39508478 39688521 40048524 40988496 41668463
41988007 40957978 39798025 39418115 39288274 39348363=20
=3D =3D =3D
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