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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.
e. Severe weather is any dangerous meteorological phenomenon with the potential to cause damage, serious social disruption, or loss of human life. [1][2][3] These vary depending on the latitude, altitude, topography, and atmospheric conditions. High winds, hail, excessive precipitation, and wildfires are forms and effects, as are thunderstorms ...
A severe thunderstorm warning (SAME code: SVR) is a type of public warning for severe weather that is issued by weather forecasting agencies worldwide when one or more severe thunderstorms have been detected by Doppler weather radar, observed by weather spotters, or reported by an emergency management agency, law enforcement, or the general ...
Symptoms of anaphylaxis include: skin reactions such as hives, flushed skin, or paleness. sudden feeling of warmth. feeling like you have a lump in your throat or difficulty swallowing. nausea ...
The five main signs and symptoms of a stroke in both men and women include sudden: Weakness or numbness on one side of your face or in one arm or leg. Confusion, trouble speaking, or trouble ...
Heart problems, including changes in heart rate or rhythm (see below) Loss of appetite. Nausea, vomiting, or diarrhea. Stomach pain or intestine problems. Blurry vision or yellow/green vision ...
The signs and symptoms of an acute exacerbation or attack of asthma include: agitation. hyperventilation. increased heart rate. decreased lung function. difficulty speaking or breathing. These ...
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.