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7. Tornado outbreak sequence of March 24–28, 2021 – This was day 2 of the outbreak sequence. The high risk was issued at 06Z for a 30% hatched area for tornadoes. A PDS tornado watch was issued, with a >95% chance for both tornadoes and strong tornadoes, and high probabilities for most other categories.
Headquartered at the National Weather Center in Norman, Oklahoma, the Storm Prediction Center is tasked with forecasting the risk of severe thunderstorms and tornadoes in the contiguous United States. It issues convective outlooks, mesoscale discussions, and watches as a part of this process. Convective outlooks are issued for the following ...
PDS watches and warnings alike are quite uncommon; less than 3% of watches issued by the SPC from 1996 to 2005 were PDS watches, or an average of 24 each year. When a PDS watch is issued, there are often more PDS watches issued for the same weather system, even on the same day during major outbreaks, so the number of days per year that a PDS ...
On the EF Scale, an EF-2 tornado is more severe than an EF-1, with 111 to 135 mph winds. Repair work begins at several homes in the Utica area off I-265 after the wind damage from Tuesday's ...
Generally, a warning covers a smaller geographic area and comes when the threat is more “imminent,” McClatchy News reported. For example, the weather service puts out a tornado watch “when ...
The NWS issued a Tornado Warning for west central Wichita County and southeastern Wilbarger County. A Skywarn weather spotter confirmed a tornado on the ground. The Storm Prediction Center placed ...
A watch may also be issued several hours ahead of the arrival of a mature and organized complex of storms, such as a mesoscale convective system. A severe thunderstorm watch, like a tornado watch, is not to be confused with a warning. A watch encourages the public to remain vigilant—to be on the watch, so to speak—for later severe weather.
Warnings, on the other hand, mean to take action because severe weather has either been reported by spotters or indicated by radar. A tornado watch is issued by the Storm Prediction Center for ...