ACUS03 KWNS 201913
SWODY3
SPC AC 201912

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0212 PM CDT Sun Oct 20 2024

Valid 221200Z - 231200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
No severe thunderstorms are forecast on Tuesday.

...Synopsis...
A shortwave trough is forecast to begin the period over the Mid MS
Valley, before continuing quickly northeastward across the Upper
Great Lakes and becoming embedded within the stronger westerlies.
Another shortwave trough is expected to progress through the
Canadian Prairies while also deepening. By 12Z Wednesday, this
shortwave is expected to extend from the Hudson Bay through western
Ontario and the Upper Midwest.

A surface low associated with the second, deeper shortwave trough
will move just ahead of its parent wave across northern Ontario into
western Quebec. As it does, a cold front attendant to this low will
push southeastward across the Upper Midwest and Upper Great Lakes.
Low-level moisture in the vicinity of this front will be minimal,
but increasing mid-level moisture coupled with cold mid-level
temperatures could still promote enough buoyancy for a few deeper
updrafts capable of producing lightning.

..Mosier.. 10/20/2024

$$

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