944
ACUS03 KWNS 010714
SWODY3
SPC AC 010713

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0213 AM CDT Mon Jun 01 2026

Valid 031200Z - 041200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE NORTHERN PLAINS...

...SUMMARY...
Thunderstorms with large hail and severe wind gusts will be possible
on Wednesday in parts of the northern Plains. Strong wind gusts and
hail will also be possible in parts of the central High Plains.

...Northern Plains/Central High Plains...
At mid-levels, a shortwave trough is forecast to move across the
Northern High Plains on Wednesday, as southwesterly flow remains in
place over the Dakotas. At the surface, a cold front is forecast to
move eastward into the central Dakotas during the afternoon. Ahead
of the front, surface dewpoints in the lower to mid 60s F will
contribute to an axis of moderate instability over the eastern
Dakotas by mid to late afternoon. Low-level convergence ahead of the
front and large-scale ascent associated with the shortwave trough
will support scattered thunderstorm development. Multiple small
clusters of storms appear likely to move eastward across the
instability corridor in the afternoon and evening.

Ahead of the front late Wednesday afternoon, forecast soundings from
northeast South Dakota into southeastern North Dakota have 0-6 km
shear in the 30 to 40 knot range with 700-500 mb lapse rates in the
7 to 7.5 C/km range. This environment is expected to support
supercells with large hail. Severe wind gusts will also be possible,
mainly with any organized cluster that can persist into the early to
mid evening.

Further south across the central High Plains, an axis of moderate
instability is forecast to be in place by afternoon. Although model
forecasts suggest that large-ascent will remain weak, isolated
storms could develop in areas where low-level convergence becomes
maximized. By late afternoon, forecast soundings in the central High
Plains have 0-6 km shear in the 20 to 25 knot range with 0-3 km
lapse rates near 8 C/km. This would support an isolated threat for
severe wind gusts. Hail will also be possible.

..Broyles.. 06/01/2026

$$