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Topic: SPC Nov 25, 2024 2000 UTC Day 1 Convective Outlook (Read 29 times) previous topic - next topic

SPC Nov 25, 2024 2000 UTC Day 1 Convective Outlook

SPC Nov 25, 2024 2000 UTC Day 1 Convective Outlook

[html]SPC 2000Z Day 1 Outlook
     
Day 1 Outlook Image

Day 1 Convective Outlook 
NWS Storm Prediction Center Norman OK
0134 PM CST Mon Nov 25 2024

Valid 252000Z - 261200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Organized severe thunderstorms not expected through tonight.

...20Z Update...
Recent surface analysis places a low over south-central Lower MI,
with a cold front extending southwestward from this low through
central IN and far southern IL, and continuing through the MO Boot
Heel and eastern AR into south TX. Showers have been confined to the
post-frontal regime over IL thus far, but general expectation is for
precipitation to increase ahead of the front, beginning during the
late afternoon across the Mid-South vicinity before expanding into
the Lower MS and TN Valleys this evening/tonight, and into more of
the Southeast states early tomorrow morning.

A few stronger storms are still possible from the central KY/middle
TN vicinity into more of eastern KY and adjacent parts of OH/WV (and
maybe even western PA), where the best overlap between buoyancy,
vertical shear, and large-scale forcing for ascent will exist.
Buoyancy is still forecast to remain modest, limiting overall
updraft strength and keeping the severe threat too low to introduce
any probabilities.

..Mosier.. 11/25/2024

.PREV DISCUSSION... /ISSUED 1011 AM CST Mon Nov 25 2024/

...Upper OH Valley...
Morning water vapor imagery shows a strong and progressive shortwave
trough moving across the central/northern Plains.  As this feature
tracks eastward, the associated surface cold front will advance
across the upper OH and TN Valleys.  Most 12z CAM solutions suggest
a corridor of slightly greater thunderstorm potential - mainly after
dark - along the front from eastern KY into adjacent parts of OH/WV
and eventually southwest PA.  Strong winds aloft and a rather
focused low-level jet feature may aid in the development of gusty
winds in sustained showers or thunderstorms in this region.
However, very minimal CAPE suggests the risk of severe storms is
rather low.


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Source: SPC Nov 25, 2024 2000 UTC Day 1 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day1otlk_2000.html)