Current SPC Activity Chart

Current Severe US Wx Maps

SPC Activity Chart
Hazard Wed (08/15) Thu (08/16) Fri (08/17) Sat (08/18) Sun (08/19) Mon (08/20) Tue (08/21) Wed (08/22)
Severe Slight Slight Marginal No Area No Area No Area No Area No Area
Fire Critical Elevated No Area No Area No Area No Area No Area No Area

Forecast Discussion - Convective Outlook

   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...

   ...SUMMARY...
   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.

   ...Nebraska...

   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.

   ...Kentucky/Indiana...

   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.

   ..Leitman.. 08/16/2018

    

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z