SPC Jul 14, 2020 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0350 AM CDT Tue Jul 14 2020

Valid 171200Z - 221200Z

...DISCUSSION...
...Northern Plains/Great Lakes/Northeast States...

A progressive northern stream will be confined to the U.S./Canadian
border region during the Day 4-8 period. A series of shortwave
impulses/troughs will shift east from the northern Rockies to the
Great Lakes and across New England. Enhanced westerly upper flow
atop seasonally moist/unstable lower levels will support bouts of
strong to severe storms during this time, with the most favorable
severe potential apparent from Day 4/Fri through Day 6/Sun. However,
confidence is low concerning timing of various mesoscale features
and influences from prior day convection/decaying MCSs. Given these
uncertainties, confidence is too low to introduce 15% severe
probabilities at this time, though this may become necessary in
subsequent outlooks.

Read more

from SPC Forecast Products http://www.spc.noaa.gov/products/exper/day4-8/