Hurricane Terms - N

N - continued

NAUTICAL MILE: A unit of length used in marine navigation that is equal to a minute of arc of a great circle on a sphere. One international nautical mile is equivalent to 1,852 meters or 1.151 statue miles. Refer to a sea mile.

NEXRAD (NEXT GENERATION WEATHER RADAR): A network of advanced Doppler radars implemented in the United States between 1992 and 1996, it detects the location and intensity of precipitation out to a range of 143 miles from the radar site. NEXRAD Doppler radar is highly sensitive and can detect precipitation from very light rain and snow up to the strongest thunderstorms with accuracy and detail. Sometimes, however, the radar's extreme sensitivity will cause ground clutter and other non-precipitation echoes to be displayed in the vicinity of the radar site

NOAA WEATHER RADIO: A 24-hour continuous broadcast of existing and forecasted weather conditions operated and broadcast by the local field offices of the National Weather Service.

NORTH ATLANTIC BASIN (SOMETIMES CALLED THE ATLANTIC BASIN): The Atlantic Ocean north of the equator, the Caribbean Sea, and the Gulf of Mexico.

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