Severe Storm Outlook Narrative (AC)
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472
ACUS11 KWNS 272347
SWOMCD
SPC MCD 272347
SDZ000-NDZ000-MTZ000-WYZ000-280145-
Mesoscale Discussion 1454
NWS Storm Prediction Center Norman OK
0647 PM CDT Thu Jun 27 2024
Areas affected...northeastern Wyoming into western South Dakota
Concerning...Severe Thunderstorm Watch 475...
Valid 272347Z - 280145Z
The severe weather threat for Severe Thunderstorm Watch 475
continues.
SUMMARY...Risk for locally damaging gusts and isolated hail should
gradually increase across northern portions of WW 475 over the next
1 to 2 hours.
DISCUSSION...Latest radar loop shows isolated strong storms east of
the Black hills, and a separate/expanding cluster of storms moving
eastward out of southeastern Montana and northeastern Wyoming into
northern portions of WW 475.
With a moist/moderately unstable environment in the vicinity of the
warm and cold fronts and the narrow warm sector in between, and
veering flow with height providing ample shear for rotating storms,
the overall environment remains supportive of large hail and
damaging gusts with stronger storms. As such, as the convection
spreads eastward into western South Dakota, severe risk should
gradually increase.
..Goss.. 06/27/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...BIS...UNR...BYZ...
LAT...LON 45130421 45960385 45940212 44190113 43460129 43350310
44060530 44850535 45130421