Watches, Warnings & Advisories

National Weather Advisories

Weather Warning Legend
     
Tornado Watch - A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes. Tornado Watch High Wind Advisory - A high wind advisory is issued when sustained winds of 31 mph or greater are expected to occur for at least 1 hour. This advisory can also be issued if winds of 46 mph or greater are expected for any length of time. High Wind Advisory Hurricane Local Statement - This statement is issued when it is necessary to inform the public of hurricane or tropical storm watches and warnings. These statements contain detailed information of when and what adverse conditions to expect as a result of the tropical system affecting the statement area. Hurricane Local Statement
Tornado Warning - A tornado warning is issued when a funnel cloud has been spotted or a rotating thunderstorm has been indicated by doppler radar. Tornado Warning Flood Watch / Statement - A flood watch is issued when flooding is possible in the watch area. Flood Watch / Statement Hurricane Watch - A Hurricane Watch means hurricane conditions are possible in the next 24 hours. Hurricane Watch
Severe Thunderstorm Watch - Issued when there is a possibility that thunderstorms in and near the watch box area may produce the following severe weather conditions: Hail 3/4 of an inch or greater, Winds greater than 58 mph Severe Thunderstorm Watch Flood Warning - A flood warning is issued when flooding is occuring or is about to occur. Flood Warning Hurricane Warning - A Hurricane Warning means hurricane conditions are expected in the next 24 hours. Hurricane Warning
Severe Thunderstorm Warning - I ssued when a storm with any of these severe weather criteria is approaching the warning area: Hail 3/4 of an inch or greater, winds greater than 58 mph or r ecent history of tree, telephone pole, or other structural damage Severe Thunderstorm Warning Heat Advisory - A heat advisory is issued when the heat index is expected to exceed 105° F (100° F in New York City) or if nighttime lows are expected to be greater than 80° F for two or more nights. Heat Advisory Tropical Storm Watch - A Tropical Storm warning means tropical storm conditions are possible in the next 24 hours. Tropical Storm Watch
Winter Weather Statement - A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area. Winter Weather Statement Fire Weather Advisory - A fire weather advisory is issued when dry conditions in the advisory area result in a situation where forest or brush fires are possible. Fire Weather Advisory Tropical Storm Warning - A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours. Tropical Storm Warning
Dense Fog Advisory - A dense fog advisory is issued when fog that reduces visibility to 1/4 mile or less is possible in the advisory area. Dense Fog Advisory    

 

A statement generally provides additional or follow up information to an existing weather condition. An advisory is for less serious conditions that cause significant inconvenience and, if caution is not exercised, could lead to situations that may threaten life and/or property. A watch is used when the risk of a hazardous weather event has increased significantly, but its occurrence, locations, and/or timing is still uncertain. It is intended to provide advance notice of possible inclement weather. A warning is used for conditions posing an immediate threat to life or property. Depending on the type of warning, you should take immediate, appropriate action.

 

Courtesy the Weather Underground.