Day 1 Outlook Day 2 Outlook Day 3 Outlook Days 4-8 Outlook

Day 3 Outlook Outlook Probablistic Outlook
Current Day 3 Outlook
Categorical Day 3 Outlook
  

Images courtesy of the NWS Storm Prediction Center
 Forecast Discussion


000
ACUS03 KWNS 230655
SWODY3
SPC AC 230654

Day 3 Convective Outlook  
NWS Storm Prediction Center Norman OK
0154 AM CDT Wed May 23 2018

Valid 251200Z - 261200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE UPPER
GREAT LAKES TO THE CENTRAL PLAINS...

...SUMMARY...
Isolated strong storms are possible across the upper Great Lakes
region into the central Plains Friday.

...Upper Great Lakes to the Central Plains...

Northern Plains short-wave trough is expected to flatten the mid
American ridge during the day2-3 period before digging southeast
into the upper Great Lakes late Friday. This feature should induce
scattered deep convection Thursday that will propagate into the
upper MS Valley region along the nose of a veered LLJ. Early in the
period remnants of this activity may be ongoing, but likely in a
sub-severe state. However, strong boundary-layer heating along weak
confluence zones, both synoptically and convectively induced, is
expected to assist deep convection by late afternoon. Weak height
falls will help concentrate storms over the upper Great Lakes but
deepening northwesterly flow will enhance shear along trailing
boundary into the central Plains. Hail/wind are the primary threats
with this diurnally driven convection.

..Darrow.. 05/23/2018

$$