SPC May 7, 2022 0600 UTC Day 2 Convective Outlook
[html]SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1259 AM CDT Sat May 07 2022
Valid 081200Z - 091200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorm risk on Sunday appears minimal across the CONUS
at this time.
...Discussion...
A stagnant/quasi-stationary large-scale upper flow pattern will
persist across the U.S. Sunday. In the East, a trough/weak low is
expected to linger near the East Coast. Meanwhile, broad cyclonic
flow will remain in place over the entire western half of the
country.
At smaller scales, multiple small disturbances moving through the
cyclonic flow will support primarily diurnal showers and occasional
lightning strikes, from the Pacific Northwest to the north-central
States.
Meager instability is forecast across the West, which will hinder
any appreciable threat for severe storms. Meanwhile, over the
Plains, capping -- associated with persistent northeastward
advection of an elevated mixed layer -- will preclude thunder in
most areas south of Nebraska. One exception may be across the
north-central Texas vicinity, where strong diurnal heating/mixing
may weaken/mix out the cap sufficiently to allow a late afternoon
storm or two to develop.
Otherwise, most thunderstorm activity across the north-central U.S.
is progged to remain elevated, within a warm-advection regime north
of a southwest-to-northeast-oriented central Plains baroclinic zone.
Modulated by the diurnal low-level jet cycle, clusters of elevated
storms are expected -- with a decaying round of convection shifting
into the upper Mississippi Valley region during the first half of
the period, some weak/diurnal convection over the Dakotas during the
afternoon, and then a second low-level-jet-induced round of
overnight convection from eastern Wyoming eastward across Nebraska
and South Dakota. While a stronger storm may occasionally evolve,
any severe risk appears too low to highlight with an outlook area at
this time.
..Goss.. 05/07/2022
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Source: SPC May 7, 2022 0600 UTC Day 2 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day2otlk_0600.html)