SPC AC 160101
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0801 PM CDT Wed Aug 15 2018
Valid 160100Z - 161200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
CENTRAL AND SOUTHERN NEBRASKA...
Isolated strong to severe storms may continue across parts of
central and southern Nebraska for a few more hours this evening.
Large hail and damaging wind gusts are possible with these storms.
Additional storms may produce gusty winds across northern Kentucky
into southeast Indiana.
Strong to severe storms will continue across eastern portions of WW
337. The supercell over Lincoln County weakened after storm
interactions near LBF but has since re-intensified. 00z RAOB from
LBF shows favorable CAPE/shear environment for sustaining this
activity as it tracks southeast. Shear does decrease with
southeastward extent and as boundary layer stabilization ensues,
threat should diminish after 03z. Additional strong storms across
central NE may produce some gusty winds and hail but overall
weakening trend will ensue in tandem with convection further south.
Strong storms may continue for a short time this evening, mainly
producing gusty winds. The line of storms moving across southern IN
and north-central KY has shown a decrease in reflectivity cores and
in lightning activity over the last 30-60 min and a weakening trend
should continue with eastward extent. Obs sites at SDF and LOU
measured a 46kt and 35kt peak wind gust, respectively. Weakening has
since ensued but some gusty winds may persist another 1-2 hours.
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z