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Topic: SPC Dec 24, 2024 0700 UTC Day 2 Convective Outlook (Read 3 times) previous topic - next topic

SPC Dec 24, 2024 0700 UTC Day 2 Convective Outlook

SPC Dec 24, 2024 0700 UTC Day 2 Convective Outlook

[html]SPC 0700Z Day 2 Outlook
     
Day 2 Outlook Image

Day 2 Convective Outlook 
NWS Storm Prediction Center Norman OK
1252 AM CST Tue Dec 24 2024

Valid 251200Z - 261200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected on Christmas Day (Wednesday).

...Synopsis...
In the southern stream, a lead shortwave trough initially over east
Texas on Wednesday is expected to steadily weaken toward the Lower
Mississippi Valley, while a secondary and more prominent shortwave
trough modestly amplifies as it progresses east-southeastward over
the southern Rockies toward far west Texas Wednesday night.

...Southern Louisiana...
Some thunderstorms may linger Wednesday morning from near the
middle/upper Texas coast into Louisiana. It is not entirely clear
how far north the warm sector will develop, but it is possible that
modest instability develops across far southern Louisiana during the
day, although weakening mass field trends would suggest that the
main warm/moist sector will remain offshore. If the airmass does
modestly destabilize inland, a few strong storms could occur given
that moderately strong deep-layer/low-level shear will exist near
the warm front. Current thinking is that organized severe potential
will remain limited, but this will be reevaluated into the Day 1
time frame.

...West/northwest Texas...
Related to the approaching shortwave trough, steadily increasing
forcing for ascent via DPVA/warm advection will arrive late
Wednesday night. Steepening mid-level lapse rates and minimal
buoyancy could potentially support isolated elevated thunderstorm
development by daybreak (12z) Thursday.

...Pacific Northwest/northern California...
A few near-coastal thunderstorms could occur as a shortwave
trough/frontal band approaches the coast and mid-level lapse rates
regionally steepen.

..Guyer.. 12/24/2024


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Source: SPC Dec 24, 2024 0700 UTC Day 2 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day2otlk_0700.html)