National Weather Service United States Department of Commerce

Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Back to WFO Key West Tropical Storm/Hurricane Threats and Potential Impacts Page

 

Disclaimer: Storm Surge Threat for Lake Okeechobee is not currently depicted in this product. It is assumed surge impacts will remain confined to areas inside the Levy and therefore of little to none impact to surrounding areas. Should there be a concern for a breach in the dike impacting population surrounding Lake Okeechobee, that concern will be expressed via the hurricane local statement and most importantly the issuance of Flash Flood Watches and/or Warnings as needed in coordination with the US Army Corp of Engineers and the surrounding counties.

 

Storm Surge Threat Potential Impacts From Storm Surge

EXTREME

Potential for inundation of 9 feet or greater above ground

DEVASTATING TO CATASTROPHIC

To be safe, aggressively prepare for the potential of devastating to catastrophic storm surge flooding impacts.  

HIGH

Potential for inundation 6-9 feet above ground

EXTENSIVE

To be safe, aggressively prepare for the potential of extensive storm surge flooding impacts.    

MODERATE

Potential for inundation 3-6 feet above ground

SIGNIFICANT

To be safe, earnestly prepare for the potential of significant storm surge flooding impacts.  

ELEVATED

Potential for inundation 1-3 feet above ground

LIMITED

To be safe, prepare for the potential of limited storm surge flooding impacts.    

LITTLE TO NONE 

Little to no inundation

LITTLE TO NONE

No immediate preparations needed. Little to no potential storm surge flooding impacts.