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These are the first warnings issued with PDS wording, and like PDS flash flood watches, are issued by local forecast offices. [19] [20] Below is an example of a PDS Tornado Warning, issued for the 2021 Naperville–Woodridge tornado on June 20, 2021.
An example of a tornado warning polygon issued by the National Weather Service. A tornado warning (SAME code: TOR) is a public warning that is issued by weather forecasting agencies to an area in the direct path of a tornado, or a severe thunderstorm capable of producing one, and advises individuals in that area to take cover.
Tornado Debris Project (TDP) Tornado debris signature (TDS) – A more formal term for a debris ball. Tornado emergency – Enhanced wording used by the U.S. National Weather Service in a tornado warning or severe weather statement when a large, intense tornado is expected to impact a highly populated area (traverse a large city or dense suburbs).
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The PDS wording can be incorporated into the text of a tornado warning, either upon its initial issuance or in a "severe weather statement" providing updated information on the storm, when a considerable tornado debris signature is detected on radar or a large tornado is visually observed.
The "particularly dangerous situation" wording is used in "rare situations when long-lived, strong and violent tornadoes are possible," the weather service said. "Numerous" tornadoes are expected ...
When there's a tornado watch, It’s important to know what you can do to safeguard your life. Skip to main content. Subscriptions; Animals. Business. Fitness. Food. Games. Health. Home & Garden ...
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...