National Weather Service United States Department of Commerce

National Hurricane Center: User’s Guide to Hurricane Products

 

NHC to issue storm surge watch and warning graphic - pdf

 

HURRICANE - maximum sustained winds of 74 mph or greater.

 

TROPICAL STORM - a strong area of low pressure associated with maximum sustained winds of 39 to 73 mph. It is at this point a tropical cyclone gets a name.
 

TROPICAL DEPRESSION - an organized area of low pressure where sustained surface winds are 38 mph or less.
 

HURRICANE WATCH - an announcement that hurricane conditions are possible within the specified area issued by the National Hurricane Center. Because outside preparedness activities become difficult once winds reach tropical storm force, watches are issued 48 hours in advance of the anticipated onset of tropical-storm-force winds.
 

HURRICANE WARNING - an announcement that hurricane conditions are expected within the specified area issued by the National Hurricane Center. Because outside preparedness activities become difficult once winds reach tropical storm force, warnings are issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.
 

TROPICAL STORM WATCH - an announcement that tropical-storm conditions are possible within the specified area issued by the National Hurricane Center. Because outside preparedness activities become difficult once winds reach tropical storm force, watches are issued 48 hours in advance of the anticipated onset of tropical-storm-force winds.
 

TROPICAL STORM WARNING -  an announcement that tropical-storm conditions are expected within the specified area issued by the National Hurricane Center. Because outside preparedness activities become difficult once winds reach tropical storm force, warnings are issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.

 

HURRICANE LOCAL STATEMENT - issued by your local NWS Forecast Office.
 

TROPICAL CYCLONE IMPACTS - Graphical Hurricane Local Statement

 

BE PREPARED:

Local Tropical Weather Briefing Page

 

Archive of Hurricane Season - NHC

Center for Operational Oceanographic Products and Services

Climatology & Names

El Nino/La Nina Current Conditions

FAQs about Hurricanes

Glossary: Tropical Terms

Historical Hurricane Tracks - interactive database

Hurricane Outlook

Hurricanes & the Oil Spill - factsheet

National Data Buoy Center

National Hurricane Awareness Week - NHC

Product Descriptions: Text & Graphical

Rip Currents

Saffir-Simpson Hurricane Wind Scale

Sea Surface Temperature Analysis

Tidal Datums

Tropical Cyclones - pdf brochure

Western Atlantic Hurricane Tracking Chart

 

Service Assessments:

Hurricane Irene - August 21-30, 2011

Hurricane/Post-Tropical Cyclone Sandy - October 22-29, 2012

 

Local Definitions / Preparedness Page