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Topic: SPC Aug 6, 2022 1730 UTC Day 2 Convective Outlook (Read 66 times) previous topic - next topic

SPC Aug 6, 2022 1730 UTC Day 2 Convective Outlook

SPC Aug 6, 2022 1730 UTC Day 2 Convective Outlook

[html]SPC 1730Z Day 2 Outlook
     
Day 2 Outlook Image

Day 2 Convective Outlook 
NWS Storm Prediction Center Norman OK
1229 PM CDT Sat Aug 06 2022

Valid 071200Z - 081200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF
SOUTHERN ARIZONA...

...SUMMARY...
Thunderstorms capable of isolated severe wind gusts are possible
across parts of Arizona Sunday afternoon and evening.

...Arizona...
Scattered thunderstorms are expected to develop Sunday afternoon
across parts of Arizona, within a relatively moist and moderately
unstable environment. Initial development is expected across the
higher terrain, with east-northeasterly midlevel flow favoring the
potential for outflow-driven clusters to move into the lower desert
regions by evening, with an attendant risk of isolated severe wind
gusts.

...c* Front Range into the central High Plains...
Scattered to widespread thunderstorms are expected along the CO
Front Range within a post frontal regime, with more isolated
development possible across adjacent portions of the central High
Plains. Veering wind profiles north of the front will support
effective shear of 20-30 kt within a moderately unstable
environment, and a couple of semi-organized storms will be possible,
though a tendency for storm mergers is expected to limit the severe
threat to some extent.

...Midwest into parts of the Great Lakes...
Substantial convection is expected across parts of the Midwest
during the D1/Saturday period into early Sunday, which casts
considerable uncertainty regarding the severe potential later in the
day. There is some potential for afternoon/evening redevelopment
along any remnant outflow boundaries, and also along a cold front
moving across parts of IA/MN. Stronger deep-layer shear is expected
to remain north/west of the greater surface-based instability, but a
few stronger cells/clusters will be possible across some portion of
this area, and severe probabilities may eventually be needed,
depending on shorter-term observational and guidance trends.
 
...Northern New England...
Northern New England will be along the southern fringe of stronger
midlevel flow on Sunday. While the environment is expected to remain
relatively moist, very weak midlevel lapse rates will tend to limit
buoyancy and thunderstorm coverage for much of the day. There is
some chance for isolated storms to develop across the higher terrain
(if sufficient heating can occur), and/or spread south of the
international border by early evening. Should this occur, some
locally damaging wind threat may result, though confidence remains
too low for wind probabilities at this time.

..Dean.. 08/06/2022


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Source: SPC Aug 6, 2022 1730 UTC Day 2 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day2otlk_1730.html)