National Weather Service United States Department of Commerce
  Weather Impact Levels  

Lightning Tornado Prevailing Wind TS wind and/or Hail Inland
Flood
Coastal
Flood
Surf & Rip Current Waves Visibility Heat/Cold
Lightning Tornado Wind TS Wind and or Hail Inland Flooding Coastal Flooding Surf & Rip Current Seas/Waves Visibility Heat/Cold
Lightning Tornado Wind Hail Inland Flooding Coastal Flooding Surf & Rip Current Seas/Waves Visibility Heat/Cold
 
 Convective Wind and/or Hail Hazard
 
 Resources
 
 Legend (Click for Impacts)
None No hail or convective wind gusts.
Slight Wind gusts up to 38 mph; No hail.
Moderate Wind gusts 39-57 mph; Hail, up to dime size (< 1.0 inch).
High Wind gusts 58-73 mph; Large hail, penny to ping pong ball size (1.0 inch to 1.5 inches).
Extreme Wind gusts ≥ 74 mph; Very large hail, golf ball size or larger (1.75 inches or greater).
 
 

 
Weather Forecasts | Past Weather | Tropical Weather