534
ACUS11 KWNS 010348
SWOMCD
SPC MCD 010348
NEZ000-010545-

Mesoscale Discussion 1410
NWS Storm Prediction Center Norman OK
1048 PM CDT Tue Jun 30 2026

Areas affected...parts of west central through north central
Nebraska

Concerning...Severe Thunderstorm Watch 426...

Valid 010348Z - 010545Z

The severe weather threat for Severe Thunderstorm Watch 426
continues.

SUMMARY...A swath of potentially damaging wind gusts appears likely
to overspread the region through midnight-2 AM CDT.

DISCUSSION...03Z surface observations indicate that a 2-4 mb
2-hourly surface pressure perturbation has developed with an
evolving cluster of storms now beginning to propagate east-northeast
of the Cheyenne Ridge vicinity.  This includes rises centered
near/north of Akron CO and falls east-northeastward across Ogalala
through North Platte NE, with perhaps a developing wake low near
Pine Bluffs NE.

Rapid destabilization has occurred the past few hours in a narrow
corridor east-northeast of the evolving cluster in response to
low-level moistening, including surface dew point increases of 8-12
F, which now appears to be supporting CAPE up to 3000 J/kg.  A
meso-beta scale cyclonic circulation has become better defined, and
there appears considerable potential for further convective
intensification and at least a bit further upscale growth.  An
ongoing increase in severe wind gusts appears likely to continue at
least several more hours, with a continuing risk for large hail as
well.

..Kerr.. 07/01/2026

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...GID...LBF...

LAT...LON   41810151 42040067 42789903 41929840 41030120 41410173
            41810151

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN