666
ACUS01 KWNS 130101
SWODY1
SPC AC 130100

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Wed Jun 12 2024

Valid 130100Z - 131200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM EASTERN NE
INTO PARTS OF MN/WI...

...SUMMARY...
Scattered severe thunderstorms capable of large hail, damaging wind
gusts, and a couple tornadoes remain possible across parts of the
Upper Midwest and central Plains this evening.

...Parts of MN/WI into IA/eastern NE...
A few supercells are ongoing this evening across parts of MN, within
an environment characterized by moderate to strong buoyancy and
strong deep-layer shear. These storms may persist for a few hours
this evening and spread into parts of WI, with a continued threat of
large hail, localized severe gusts, and a couple tornadoes. An
eventual weakening trend is expected later tonight as MLCINH
continues to increase regionwide.

Farther south, an intense supercell cluster is ongoing near the
NE/IA border, north of Omaha, within a strongly unstable and
favorable sheared environment. This cluster may continue
south-southeastward along the instability gradient, before storms
weaken later tonight due to increasing MLCINH. The potential for
very large hail and isolated severe gusts will continue as long as
this cluster persists.

Overnight, some guidance (including recent HRRR runs) suggest
potential for elevated storm development from SD into southwest MN.
Moderate elevated buoyancy and sufficient effective shear could
support a strong storm or two with an isolated hail threat.

..Dean.. 06/13/2024

$$