Valid 200100Z – 201200Z
…THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN
…THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHERN
Large hail and damaging gusts are expected late tonight across Iowa
and northern Minnesota.
…Northern Plains into the Upper Midwest…
A thunderstorm or two is still possible across ND and northeast SD
as the front moves eastward tonight. Later tonight, increased storm
coverage is anticipated along the front as it moves through northern
MN. Moderate buoyancy and enhanced westerly flow aloft will result
in an environment supportive of strong, organized updrafts.
Potential for severe hail and strong wind gusts appears high enough
to merit an increase in wind/hail probabilities and a Slight Risk.
Severe thunderstorms are still expected to develop late tonight
amidst ample low-level moisture and a strong low-level jet. Large
hail (isolated over 2″ in diameter) will be the primary hazard with
the initial development with the threat then shifting to strong wind
gusts as upscale growth occurs. Primary change over this area was to
pull the Slight Risk back farther west (to the MO River) to account
for a greater potential for storms farther west.