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thunderstorm-risk-categories

Thunderstorms (no label): No severe thunderstorms expected, winds to 40 mph, small hail. Marginal Risk: Isolated severe storms are possible, limited in duration or intensity. Winds up to 60 mph, hail up to one inch, low tornado risk. Slight Risk: Scattered severe storms possible, short-lived, some isolated intense storms possible. One or two tornadoes, wind damage potential, hail. Enhanced Risk: Numerous severe storms possible. Potential for wind and hail damage and a few tornadoes. Moderate Risk: Widespread severe storms likely, long-lived, widespread and intense. Strong tornadoes, widespread wind damage and destructive hail. High Risk: Widespread severe storms expected, long-lived, widespread and “particularly intense.” Tornado outbreak.

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