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

Threat Level Descriptions

Extreme

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

"Damaging high wind" with sustained speeds greater than 58 mph, or frequent wind gusts greater than 58 mph. Damaging wind conditions are consistent with 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 a high wind warning. 

Moderate

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

"Very windy" with sustained speeds of 26 to 39 mph, or frequent wind gusts of 35 to 57 mph. Wind conditions consistent with a wind advisory. 

Low

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

"Windy" conditions. Sustained wind speeds of 21 to 25 mph, or frequent wind gusts of 30 to 35 mph.

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

"Breezy" to "Windy" conditions. Sustained wind speeds around 20 mph, or frequent gusts of 25 to 30 mph.

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.