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Topic: SPC Sep 8, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook (Read 34 times) previous topic - next topic

SPC Sep 8, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC Sep 8, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook

[html]SPC 0730Z Day 3 Outlook
     
Day 3 Outlook Image

Day 3 Convective Outlook 
NWS Storm Prediction Center Norman OK
0134 AM CDT Thu Sep 08 2022

Valid 101200Z - 111200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
The risk for severe thunderstorms appears negligible across the
U.S., Saturday through Saturday night.

...Discussion...
There remains sizable spread within/among the various model output
concerning short wave developments across the interior U.S. Saturday
through Saturday night.  In general, though, it appears that a
mid-level trough, digging across/southeast of the northern Rockies
at the outset of the period, will gradually split off the stronger
westerlies to the north of the international border, as an embedded
mid-level low develops across the middle Missouri Valley vicinity.
In response to the gradual approach of this digging perturbation, a
mid-level low initially centered near or inland of the Louisiana
coast may beco*e increasingly sheared along an axis near the lower
Mississippi through lower Ohio Valleys.

A significant cold front associated with the northern perturbation
probably will continue to surge out ahead of the stronger cooling
aloft, particularly across the southern Great Plains.  With
seasonably high moisture content largely remaining to the east of
the southern shear axis, weak lapse rates along/ahead of the front
are still expected to limit destabilization, as any surface frontal
wave development across the lower Missouri Valley/Upper Midwest also
remains weak.  These factors, among others, point to severe weather
potential remaining generally negligible through this period.

..Kerr.. 09/08/2022


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Source: SPC Sep 8, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day3otlk_0730.html)