SPC MD 1087

MD 1087 CONCERNING SEVERE THUNDERSTORM WATCH 357… FOR PARTS OF EASTERN NE INTO WESTERN IA

Mesoscale Discussion 1087
NWS Storm Prediction Center Norman OK
1133 PM CDT Mon Jun 02 2025

Areas affected...Parts of eastern NE into western IA

Concerning...Severe Thunderstorm Watch 357...

Valid 030433Z - 030600Z

The severe weather threat for Severe Thunderstorm Watch 357
continues.

SUMMARY...A localized severe threat may continue overnight.

DISCUSSION...A cluster of storms recently intensified across
south-central NE, as a northeastward-surging outflow emanating from
KS intersected ongoing convection and its associated outflow.
Several reports of 50-70 mph gusts have been noted with this
convection. Downstream intensity and organization of this storm
cluster is uncertain, due to currently limited buoyancy with
eastward extent. However, moisture transport associated with a
rather strong low-level jet will help to increase buoyancy ahead of
this cluster, and potentially sustain it as it moves
east-northeastward. 

While convection may tend to remain somewhat elevated overnight, at
least an isolated threat of damaging wind may spread into eastern NE
and western IA, especially if the ongoing cluster can maintain some
organization. Stronger embedded cores may also be capable of
producing isolated hail. WW 357 has been expanded eastward in order
to address the continued severe threat.

..Dean.. 06/03/2025

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

ATTN...WFO...DMX...EAX...FSD...OAX...TOP...GID...LBF...

LAT...LON   40839824 41759853 42329645 42279574 42199542 41749501
            41049514 40729535 40409592 40109659 39899725 39949757
            40839824 

MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN

Read more