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The Midwest, including portions of Iowa, was under a “particularly dangerous situation tornado watch” on May 21. The PDS watch is a special label applied to watches by the National Weather ...
A PDS tornado watch issued on December 14, 2022. In weather forecasting in the United States, "particularly dangerous situation" (PDS) is the wording used by the National Weather Service to convey special urgency in watch or warning messages for unusually extreme and life-threatening severe weather. It is used in the format "This is a ...
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 ...
The severe weather prompted forecasters to issue a rare "particularly dangerous situation" alert, reserved for when long-lived, strong and violent tornadoes are possible.
The NWS has the option of adding intensified wording to tornado warning products and update statements issued as a Severe Weather Statement (SVS)—"particularly dangerous situation" (PDS) or "tornado emergency"—when a severe threat to human life and considerable or catastrophic property damage from a visually observed or radar-detected large ...
Particularly dangerous situation flash flood watch FFA – Conditions are favorable for an extremely elevated level of severe and life-threatening flash flooding beyond the level of a normal flash flood watch in and close to the watch area. These watches are usually issued for a smaller area by the local WFOs than typical flash flood watches ...
Now, the NWS has issued another PDS red flag warning that between 4 a.m. local time this Tuesday and noon on Wednesday dangerous so-called Santa Ana winds are coming back, albeit weaker than last ...
Soon after the upgrade into a high risk, the SPC introduced their first two particularly dangerous situation tornado watches, indicating a 90-95% chance for multiple tornadoes, and a 90% chance for multiple strong to violent tornadoes. [15] [16] Radar evolution of the Little Rock and Wynne–Covington supercells