Service Tree

The Service Tree lists all services in "branched" groups, starting with the very general and moving to the very specific. Click on the name of any group name to see the sub-groups available within it. Click on a service code to see its details and the providers who offer that service.

Thunderstorm Advisories

Taxonomy Code: TH-2100.9500-830

Programs that issue severe thunderstorm watches when weather conditions are such that a severe thunderstorm (damaging winds 58 miles per hour or more, or hail 3/4 of an inch in diameter or greater) is likely to develop and/or thunderstorm warnings when a severe thunderstorm has been sighted in a particular area or is indicated by weather radar. Thunderstorms bring heavy rains, strong winds, hail, lightning and tornadoes. Thunderstorm advisories may also include safety instructions for people who are in the immediate area.

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SKYWARN Program (TH-1700.1910-800)

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