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The Storm Prediction Center (SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), [1] which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC). [2]
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.
Severe thunderstorm warning (SVR) – A severe thunderstorm is indicated by Doppler weather radar or sighted by Skywarn spotters or other persons, such as local law enforcement. A severe thunderstorm contains large damaging hail of 1 inch (2.5 cm) in diameter or larger, and/or damaging winds of 58 mph (93 km/h) or greater.
August 26, 2024 at 11:07 AM. The National Weather Service has issued a Severe Thunderstorm Watch for Cape Cod, in effect until 7 p.m. on Monday. The watch also includes Nantucket and Dukes ...
Stay Weather Ready: Continue to follow local news or listen to a NOAA Weather Radio to stay updated about watches and warnings. At Your House: Go to your secure location, like the basement or ...
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 ...
Hazardous weather outlook. Heat advisory. Heavy freezing spray warning. Heavy freezing spray watch. Heavy snow warning. History of Atlantic hurricane warnings. Hong Kong rainstorm warning signals. Hong Kong tropical cyclone warning signals. HURCON.
The National Weather Service urges people to monitor severe weather warnings and take immediate action if a tornado warning is issued for their location.