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Topic: SPC Oct 20, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook (Read 20 times) previous topic - next topic

SPC Oct 20, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC Oct 20, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

[html]SPC 1930Z Day 3 Outlook
     
Day 3 Outlook Image

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 beco*ing 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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Source: SPC Oct 20, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day3otlk_1930.html)