Current SPC Activity Chart

Current Severe US Wx Maps

SPC Activity Chart
Hazard Sun (04/18) Mon (04/19) Tue (04/20) Wed (04/21) Thu (04/22) Fri (04/23) Sat (04/24) Sun (04/25)
Severe Marginal Marginal Marginal No Area No Area No Area No Area No Area
Fire Elevated Elevated No Area Critical No Area No Area No Area No Area

Forecast Discussion - Convective Outlook

   SPC AC 190017

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0717 PM CDT Sun Apr 18 2021

   Valid 190100Z - 191200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
   CENTRAL AND NORTHERN FLORIDA...

   ...SUMMARY...
   Marginal hail or wind gusts remain possible across parts of northern
   into central Florida.

   Strong westerly flow aloft will persist over the southeastern states
   as a shortwave trough moves from TN into the Carolinas. A
   convectively reinforced boundary will drift south across northern FL
   through the period, with a moist and unstable air mass supporting
   storms along/ahead of it. Deep-layer shear in excess of 40 kt may
   aid storm longevity, but the overall severe threat will remain low
   with only sporadic strong storms expected with marginal hail or wind
   threat.

   ..Jewell.. 04/19/2021

    

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