Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Apr 13 2025 17:09:50

ACUS02 KWNS 131709
SWODY2
SPC AC 131708

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1208 PM CDT Sun Apr 13 2025

Valid 141200Z - 151200Z

....THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EASTERN
KENTUCKY AND OHIO INTO THE CENTRAL APPALACHIANS...

....SUMMARY...
Scattered strong to severe storms are possible Monday from
mid-afternoon to mid-evening across parts of the Upper Ohio Valley
and central Appalachians.

....Ohio Valley into the Mid Atlantic...
An upper low will deepen from Lake Superior into eastern Ontario on
Monday, with an amplifying upper trough from the northern Plains
into the OH Valley late.

At the surface, a cold front will extend south from the Ontario low,
affecting OH and KY prior to 00Z. A narrow zone of mid to upper 50s
F dewpoints will spread northeastward ahead of the front, with
pockets of heating. This will lead to 1000-1500 J/kg MUCAPE from KY
into WV, with lower values northward across OH and into western PA.

Gradual height falls along with increasing midlevel moisture will
overspread the diurnally prepared boundary layer over KY, southern
OH and WV, with scattered strong to severe storms developing by late
afternoon.

Strong deep-layer shear will favor cellular activity, with a couple
supercells possible. Despite the primarily veered/westerly flow, any
rightward propagation off the hodograph will result in favorable
SRH, possibly supporting a brief tornado. Otherwise, hail is
expected with the stronger cores, with localized wind damage.

...Jewell.. 04/13/2025

$$

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