Severe Thunderstorm Warnings are issued as needed when a severe
thunderstorm is imminent has a high probability of occurrence, or
is already in progress. A severe thunderstorm produces...
- tornadoes,
- wind gusts of at least 58 mph (50 knots), and/or
- hail ¾" in diameter or larger
Structural or vegetative damage may occur with wind speeds of
about 40 mph or greater.
Severe Thunderstorm Warnings contain...
- the county or group of counties affected by the severe
weather event,
- the warning expiration time,
- the location and direction of storm movement,
- locations in the path of the storm, and
- call-to-action statements and/or other information.
Severe Thunderstorm Warnings will be issued for single
counties, or for small groups of counties, and will be followed up
with Severe Weather Statements.
Due to the nature of a thunderstorm's size, there may be a severe
thunderstorm warning in effect for your county but you may
experience mostly blue skies. It is important to know where the
storm is in relation to your location and which direction it is
moving.
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