Severe Storm Outlook Narrative (AC)
Issued by NWS
ACUS11 KWNS 270014
SPC MCD 270013
Mesoscale Discussion 0567
NWS Storm Prediction Center Norman OK
0713 PM CDT Wed Apr 26 2017
Areas affected...central and northeast IN into northwest OH
Concerning...Severe Thunderstorm Watch 165...
Valid 270013Z - 270115Z
The severe weather threat for Severe Thunderstorm Watch 165
SUMMARY...Severe hail and wind may persist another 1-2 hours across
the watch area. However, a gradual weakening trend is expected as
inhibition increases with loss of daytime.
DISCUSSION...Widely scattered strong to severe thunderstorms will
continue to track northeast from central IN toward northeast
IN/northwest OH. These storms are in a zone of modest MUCAPE in the
500-1000 J/kg range with 50+ kt effective shear. This will maintain
activity for several hours, but as inhibition increases with loss of
heating, and as storms move into region of poorer low-level
moisture, gradual weakening is expected. In fact, latest 7km CAPPI
trends indicate this weakening is already underway. Expect the
severe threat to persist another 1-2 hours before storms weaken. The
main threat will continue to be hail and strong winds. A downstream
watch is not expected.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 41758569 41728382 39518597 40708673 41758569