With a chance of thunderstorms in the forecast through the weekend, New Yorkers should be prepared. Remember, the safest place to be during a thunderstorm is indoors. Postpone outdoor activities and take cover if thunderstorms are imminent. If you must travel, avoid flooded roadways. Read more about thunderstorms and NYC
Regardless of their severity, all thunderstorms are dangerous. Every thunderstorm produces lightning, which kills more people each year than tornadoes. Strong winds, hail, flooding, and tornadoes are other dangers associated with thunderstorms.
A typical thunderstorm is 15 miles in diameter and lasts an average of 20 to 30 minutes. Of the 100,000 thunderstorms that occur every year in the United States, only about 10 percent are classified as "severe."
NYC Lightning History
SEVERE THUNDERSTORM WATCH: Conditions are favorable for the development of severe thunderstorms in and close to the watch area.While lightning can be fascinating to watch, it is also extremely dangerous. Lightning causes an average of 67 fatalities and 300 injuries each year.
The safest place to be during a thunderstorm is indoors. Postpone outdoor activities if thunderstorms are imminent.
Remember the 30/30 Rule. If you see lightning, count the seconds before you hear thunder. If it's less than 30 seconds, take cover. Once indoors, wait 30 minutes after the last clap of thunder before venturing back out.
IF YOU ARE IN A HOUSE OR BUILDING:
Downbursts and winds associated with severe thunderstorms can produce 100-150 mph winds. The resulting damage can equal that of most tornadoes. If a severe thunderstorm warning is issued: