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Topic: SPC May 26, 2022 Day 4-8 Severe Weather Outlook (Read 43 times) previous topic - next topic

SPC May 26, 2022 Day 4-8 Severe Weather Outlook

SPC May 26, 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
0354 AM CDT Thu May 26 2022

Valid 291200Z - 031200Z

...DISCUSSION...
A more active upper-air pattern for severe weather appears
increasingly probable over the central and northern Great Plains
into the Upper Midwest during the weekend into early next week.
Medium-range model guidance is converging towards a scenario of a
large-scale trough over the Interior West while a mid-level
anticyclone is centered near the southern Appalachians.  A belt of
strong southwesterly mid-level flow will remain over the central
High Plains into the Upper Midwest with a reloading of
severe-weather potential.  Models indicate a stout elevated mixed
layer and increasingly rich moisture will yield large to extreme
buoyancy, especially by Memorial Day (Monday, day 5) along the
dryline.  A nocturnal intensification of the LLJ will favor MCS
development near the terminus of this feature and near a surface
front.  Confidence is increasing in significant severe for both
Sunday and Monday for parts of the central and northern Great Plains
into the Upper Midwest.  By Tuesday (day 6), model spread in the
spatial locations of the large-scale upper features lends a
predictability-too-low highlight for now.  The pattern beco*es less
clear towards the end of the extended period.


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Source: SPC May 26, 2022 Day 4-8 Severe Weather Outlook (http://ht**://www.spc.noaa.gov/products/exper/day4-8/)