MD 1196 CONCERNING SEVERE THUNDERSTORM WATCH 395…397… FOR PORTIONS OF SOUTH-CENTRAL NEBRASKA
Mesoscale Discussion 1196
NWS Storm Prediction Center Norman OK
0651 PM CDT Fri Jun 07 2024
Areas affected…Portions of south-central Nebraska
Concerning…Severe Thunderstorm Watch 395…397…
Valid 072351Z – 080115Z
The severe weather threat for Severe Thunderstorm Watch 395, 397
continues.
SUMMARY…Large hail, damaging winds, and a tornado or two remain
possible with thunderstorms tracking south-southeastward across
south-central Nebraska this evening.
DISCUSSION…Latest radar data from KLNX indicates several
discrete/semi-discrete supercells tracking south-southeastward
across south-central Nebraska this evening. In particular, one
longer-lived intense supercell currently over southeastern Custer
County poses the greatest risk for large hail, damaging winds, and a
tornado. Downstream of this storm, VWP data shows a large,
clockwise-curved low-level hodograph (around 200 m2/s2 0-1 km SRH),
which will support ample streamwise vorticity ingestion, given
middle 60s dewpoints and moderate surface-based instability. This
supercell may persist for another 60-90 minutes, with large hail up
to 2.5 inches, locally damaging gusts up to 75 mph, and a tornado
possible.
Trailing supercell development along the outflow boundary will also
pose a risk for large hail and damaging winds, and a brief tornado
cannot be ruled out. Farther east over Nance County, a locally
upscale-growing storm cluster is moving southeast at 30-35 kt, and
this storm may pose a greater damaging-wind risk, with large hail
also possible.
..Weinman/Majchrowski.. 06/07/2024
…Please see www.spc.noaa.gov for graphic product…
ATTN…WFO…OAX…GID…LBF…
LAT…LON 41490022 41669990 41729792 41519714 41059675 40469696
40299765 40199853 40259955 40370001 40720035 41070050
41490022
