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Topic: SPC Sep 10, 2022 Day 4-8 Severe Weather Outlook (Read 24 times) previous topic - next topic

SPC Sep 10, 2022 Day 4-8 Severe Weather Outlook

SPC Sep 10, 2022 Day 4-8 Severe Weather Outlook

[html]Day 4-8 Outlook
     
Day 4-8 Outlook Image

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0337 AM CDT Sat Sep 10 2022

Valid 131200Z - 181200Z

...DISCUSSION...
An upper low is expected to be over Lake Erie early D4/Tuesday
before then ejecting northeastward along the St. Lawrence River
Valley throughout the day. A few thunderstorms are possible across
the Northeast ahead of this low, but severe potential will mitigated
by modest buoyancy and shear. Post-frontal conditions will be in
place across the remainder of eastern CONUS on D4/Tuesday and
D5/Wednesday. 

Some airmass modification may begin on D5/Wednesday across the
Plains as a series of shortwave troughs move through the western
CONUS upper troughing. However, even with moderate to strong
southerly low-level flow in place across the Plains, expansive
surface ridging over the eastern CONUS will keep trajectories
unfavorable for large-scale moisture return through the end of next
week. Severe thunderstorm potential will be low as a result.


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Source: SPC Sep 10, 2022 Day 4-8 Severe Weather Outlook (http://ht**://www.spc.noaa.gov/products/exper/day4-8/)