Tesla Weather Radar Map – Severe Weather Key

Severe Thunderstorm Watch

A severe thunderstorm watch is 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

Tornado Watch

A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes.

Flood Watch / Flood Statement

A flood watch is issued when flooding is possible in the watch area.

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.

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.

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.

Tropical Storm Watch

A Tropical Storm watch means tropical storm conditions are possible in the next 24 hours.

Hurricane Watch

A Hurricane Watch means hurricane conditions are possible in the next 24 hours.

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.

Severe Thunderstorm Warning

A severe thunderstorm warning is issued 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
• Severe thunderstorms can and do produce tornadoes.

Tornado Warning

A tornado warning is issued when a tornado has been spotted or indicated by radar.

Flood Warning

A flood warning is issued when flooding is occurring or is about to occur.

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.

Winter Weather Statement

A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area.

Special Weather Statement

A special weather statement is issued for hazards that have not yet reached warning or advisory criteria, or for hazards that do not have a specific advisory of their own.

Tropical Storm Warning

A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours.

Hurricane Warning

A Hurricane Warning means hurricane conditions are expected in the next 24 hours.

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