Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 210136
SWOMCD
SPC MCD 210135
NEZ000-SDZ000-210330-
Mesoscale Discussion 1350
NWS Storm Prediction Center Norman OK
0835 PM CDT Thu Jun 20 2024
Areas affected...North-central Nebraska
Concerning...Severe Thunderstorm Watch 440...
Valid 210135Z - 210330Z
The severe weather threat for Severe Thunderstorm Watch 440
continues.
SUMMARY...The threat of severe gusts will continue this evening with
a organized bowing segment in Cherry County moving south-southeast
along the warm front. Gusts of 60-75 mph appear possible.
DISCUSSION...A bowing segment has developed within Cherry County as
a result of linear convection interacting with a supercell. This
portion of the convective line is also moving along the warm front
in northern Nebraska. With generally low MLCIN inflow (per 00Z LBF
sounding), this activity will likely continue south-southeast along
the boundary. KLNX velocity data suggest gusts of 60-75 mph are
possible. Though the supercell farther east in Holt County has
become more disorganized over the last few hours, another surge in
the line could occur if they are able to interact later this
evening. Severe gusts will the primary hazard along with brief
circulations/tornadoes near the warm front. Large-hail potential
should remain isolated given convective mode.
A watch may be needed east of WW440 should the supercell in Holt
County maintains its intensity.
..Wendt.. 06/21/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OAX...LBF...UNR...
LAT...LON 42880107 43000069 42559852 42389818 42009829 41909958
42040074 42190125 42880107