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Topic: SPC Apr 11, 2022 Day 4-8 Severe Weather Outlook (Read 111 times) previous topic - next topic

SPC Apr 11, 2022 Day 4-8 Severe Weather Outlook

SPC Apr 11, 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
0346 AM CDT Mon Apr 11 2022

Valid 141200Z - 191200Z

...DISCUSSION...
A deep upper cyclone over the Upper Midwest should be in an
occluding phase on Day 4/Thursday as it moves slowly eastward across
the Great Lakes and adjacent portions of Canada. A cold front should
continue moving quickly eastward across much of the eastern CONUS on
Thursday. Low-level moisture ahead of the front will probably be
sufficient for thunderstorms, but instability is forecast to remain
fairly weak. While a threat for strong to damaging winds may exist
from parts of the Southeast into the Mid-Atlantic and Northeast, the
overall severe risk currently appears marginal/isolated.

The upper low over the Great Lakes should slowly meander eastward
across Canada from Day 5/Friday into the upco*ing weekend. Low-level
moisture will attempt to return northward across parts of the
Southeast and southern Plains in this time frame. Another upper
trough may move over parts of the western/central states from Day
6/Saturday into Day 7/Sunday. An organized severe risk may develop
across parts of the southern Plains into the lower/mid MS Valley in
this time frame. However, too much uncertainty currently exists in
the timing of the upper trough and placement of related surface
features to include any 15% severe areas at this time.


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Source: SPC Apr 11, 2022 Day 4-8 Severe Weather Outlook (http://ht**://www.spc.noaa.gov/products/exper/day4-8/)