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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.
National Severe Weather Warning Service. The National Severe Weather Warning Service (shortened to NSWWS) is a service provided by the Met Office in the United Kingdom. The purpose of this service is to warn the public and emergency responders of severe or hazardous weather which has the potential to cause danger to life or widespread disruption.
The Storm Prediction Center issues convective outlooks (AC), consisting of categorical and probabilistic forecasts describing the general threat of severe convective storms over the contiguous United States for the next six to 192 hours (Day 1 through Day 8). These outlooks are labeled and issued by day, and are issued up to five times per day.
Weather warning. A weather warning generally refers to an alert issued by a meteorological agency to warn citizens of approaching dangerous weather. A weather watch, on the other hand, typically refers to an alert issued to indicate that conditions are favorable for the development of dangerous weather patterns, although the dangerous weather ...
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 ...
Severe weather, flood risk to ramp up in south-central US this week. A stormy pattern that has been on AccuWeather meteorologists' watchful eye since mid-March will evolve into a heavy rain event ...
References. External links. Particularly dangerous situation. In weather forecasting in the United States, " particularly dangerous situation " ( PDS) is enhanced wording used by the National Weather Service to convey special urgency in some watch or warning messages for unusually extreme and life-threatening severe weather events, above and ...
The best way to stay safe during a nocturnal tornado threat is to have multiple ways to receive severe weather warnings. At the very least, make sure emergency alerts are enabled on your smartphone.