National Weather Service United States Department of Commerce
Hazard Map Threat Levels Safety & Impact
Graphical Hazardous Weather Outlook
High Wind Threat

The "High Wind Hazard Map" depicts the local threat for specified areas based on the adverse affects of increased wind speed.         

High Wind Threat Level

T hreat Level Descriptions

Extreme

"An Extreme Threat to Life and Property from High Wind."

"Damaging high wind" with sustained speeds greater than 58 mph...OR...sustained speeds of 40 to 57 mph with gusts greater than 58 mph.  Damaging wind conditions are consistent with that for a high wind warning.    

High

"A High Threat to Life and Property from High Wind."

"High wind" with sustained speeds of 40 to 57 mph.  Wind conditions consistent with that for a high wind warning. 

Moderate

"A Moderate Threat to Life and Property from High Wind."

"Very windy" with sustained speeds of 25 to 39 mph.  Wind conditions consistent with that for a wind advisory. 

Low

"A Low Threat to Life and Property from High Wind."

"Windy" with sustained speeds of 20 to 25 mph...OR...sustained speeds of 20 mph and gusty.  Wind conditions consistent with that for a lake wind advisory.

Very Low
" A Very Low Threat to Life and Property from High Wind."

"Windy" with sustained speeds of 20 mph, but not gusty.

Non-Threatening
" No Discernable Threat to Life and Property from High Wind."

The sustain wind speeds are non-threatening; "breezy" conditions may still be present.

Note: In "High Wind" conditions, small branches break off trees and loose objects are blown about.  Isolated occurrences of wind damage to porches, carports, awnings, or pool enclosures.  Isolated power outages may even occur.   Winds considered dangerous for high profile vehicles and for boaters on area lakes.  In "Damaging High Wind" conditions, wind damage occurs to unanchored mobile homes, porches, carports, awnings, pool enclosures and with some shingles blown from roofs.   Large branches break off trees with weak or diseased trees blown down.  Loose objects are easily blown about and can become dangerous projectiles.  Widely scattered power outages may occur.  Winds considered extremely dangerous for high profile vehicles and for boaters on area lakes.