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Topic: SPC May 27, 2022 1630 UTC Day 1 Convective Outlook (Read 66 times) previous topic - next topic

SPC May 27, 2022 1630 UTC Day 1 Convective Outlook

SPC May 27, 2022 1630 UTC Day 1 Convective Outlook

[html]SPC 1630Z Day 1 Outlook
     
Day 1 Outlook Image

Day 1 Convective Outlook 
NWS Storm Prediction Center Norman OK
1129 AM CDT Fri May 27 2022

Valid 271630Z - 281200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
FROM THE EASTERN CAROLINAS INTO THE MID-ATLANTIC...AND FROM
NORTHEAST WY INTO WESTERN SD...

...SUMMARY...
Occasional damaging thunderstorm winds and a couple of tornadoes are
possible this afternoon across parts of the Mid-Atlantic region.
Thunderstorms may produce severe gusts this afternoon into early
evening over portions of the northern High Plains.

...Carolinas/Mid-Atlantic this afternoon...
A broken line of storms has persisted since early this morning, with
new development east of the band in the destabilizing warm sector
where surface temperatures have warmed into the 78-82 F range with
dewpoints near 70 F.  Vertical shear is sufficient for organized
line segments or rotating cells ahead of (and within) the band, with
attendant threats for occasional damaging gusts and a couple of
tornadoes.

...Southeast OH into western VA and central NC this afternoon...
Additional storm development may occur farther west this afternoon,
immediately in advance of the midlevel trough, and west of this
morning/ongoing convection.  Buoyancy will be weaker co*pared to
areas farther east, and low-level shear will be relatively weak,
which suggests that isolated damaging winds will be the main threat
this afternoon.

...Northeast WY/western SD this afternoon/evening...
A midlevel shortwave trough will move eastward from the northern
Rockies to the northern High Plains by this afternoon/evening.
High-based supercell development is expected this afternoon in the
Slight risk area, in a deeply mixed environment with some increase
in midlevel flow.  As such, the primary threat with these storms
will be severe outflow gusts later this afternoon into this evening.

..Thompson/Bentley.. 05/27/2022


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Source: SPC May 27, 2022 1630 UTC Day 1 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day1otlk_1630.html)