Severe Storm Outlook Narrative (AC)
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802
ACUS11 KWNS 302032
SWOMCD
SPC MCD 302031
WYZ000-MTZ000-302230-
Mesoscale Discussion 1849
NWS Storm Prediction Center Norman OK
0331 PM CDT Wed Jul 30 2025
Areas affected...Central Wyoming into Southern Montana
Concerning...Severe potential...Watch unlikely
Valid 302031Z - 302230Z
Probability of Watch Issuance...20 percent
SUMMARY...Scattered thunderstorms capable of isolated severe hail
and severe wind gusts will be possible this afternoon into the
evening. However, given that widespread severe storms are not
expected at this time, the likelihood of weather watch issuance is
low.
DISCUSSION...Scattered thunderstorm have developed across portions
of western and central Wyoming this afternoon, in an environment
characterized by 1000-1500 J/kg MUCAPE and 45-40 kts of effective
deep-layer shear. While there is sufficient shear for some storms to
become more intense and organized, the expectation is that any
severe storms will largely be isolated and transient in nature. Any
organized convection would be capable of 60 MPH wind gusts and any
hail is expected to remain below 2.00 inches in size.
While the probability of watch issuance is expected to remain low,
convective trends will continue to be monitored.
..Halbert/Smith.. 07/30/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...UNR...CYS...BYZ...RIW...
LAT...LON 46040868 46070809 45900752 45740717 45530695 45360670
44900637 43780585 42860549 41990549 41380564 41170578
41110590 41060606 41040618 41030646 41040698 41340723
41720767 42000802 42170832 42410867 42810916 43190946
43850975 44510991 44891000 45270998 45530985 45740960
45930918 46040868
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN