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Topic: SPC Aug 15, 2022 Day 4-8 Severe Weather Outlook (Read 51 times) previous topic - next topic

SPC Aug 15, 2022 Day 4-8 Severe Weather Outlook

SPC Aug 15, 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
0352 AM CDT Mon Aug 15 2022

Valid 181200Z - 231200Z

...DISCUSSION...
A positively tilted shortwave trough should move southward from
central Canada and the northern Plains across the Midwest and Great
Lakes regions from Day 4/Thursday into the upco*ing weekend. Modest
low-level moisture and related instability are expected to generally
limit the overall severe threat across these regions. Otherwise,
large-scale upper troughing should continue over much of the eastern
states, with upper ridging centered over the western CONUS.
Accordingly, low potential for organized severe thunderstorms
remains apparent through the extended forecast period.

Medium-range guidance does indicate that an upper trough/low may
move across parts of the Pacific Northwest late this weekend into
early next week. It remains highly questionable whether enough
instability will be present to support any meaningful severe threat
with this feature, but some convective potential should exist.


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Source: SPC Aug 15, 2022 Day 4-8 Severe Weather Outlook (http://ht**://www.spc.noaa.gov/products/exper/day4-8/)