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
 
 Coastal Flood Hazard
 
 Resources

 

 
 Legend (Click for Impacts)
None No flooding; high tides <2 feet above normal.
Slight Nuisance or minor flooding; High tides 2-3 feet above normal.
Moderate Moderate flooding; High tides 4-6 feet above normal. Water entering coastal property.
High Major flooding; High tides 7-9 feet above normal. Severe impact on coastal property.
Extreme Devastating flooding; High tides ≥10 feet above normal. Neighborhoods inundated.
 
 

 
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