Friday, June 7, 2019

SPC Jun 8, 2019 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook
Day 1 Outlook Image
Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0759 PM CDT Fri Jun 07 2019

Valid 080100Z - 081200Z

...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM FAR
SOUTHEAST MT INTO NORTHWEST SD AND SOUTHWEST ND...

...SUMMARY...
Damaging wind gusts and hail will be possible across portions of the
northern Plains through late tonight. A few strong storms could also
produce strong wind gusts across portions of the northern Gulf Coast
vicinity.

...Northern Plains southwest to the southern High Plains...

Main adjustment across the northern Plains was to trim severe
probabilities across north-central and northeast WY based on latest
surface observations and where the cold front has already passed.
Otherwise, the main body of the Slight and Enhanced risk areas
remain relatively unchanged with only modest adjustments.  Widely
scattered severe thunderstorms have produced mainly large hail
reports late this afternoon. As a low level jet increases during the
next few hours, storms could still develop into a bowing segment
tracking northeast across southwest and central ND. 

Further south, the Marginal risk has been trimmed across much of the
central and southern High Plains as MLCIN quickly diminished the
threat with southward extent into the remainder of the evening. A
couple of thunderstorm clusters from the western NE Panhandle into
northeast CO could still produce marginal hail or gusty winds in the
short term however. 

...Southeastern States...

The Slight risk has been removed with this update and the Marginal
risk has been greatly reduced in aerial coverage.  Where the
Marginal remains (northern Gulf Coast into central AL/southwest GA),
a band of stronger deep layer shear will persist overnight. This
will help to maintain clusters of thunderstorms with an isolated
threat for a downburst/locally strong gust in weak to moderate
instability where PW values will remain in the 1.75-2.0 inch range.

..Leitman.. 06/08/2019

Read more

from SPC Forecast Products http://www.spc.noaa.gov/products/outlook/day1otlk_0100.html

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