(from http://www.nws.noaa.gov/nwr/nwrrcvr.htm)
NWR Receiver Consumer Information:
NOAA Weather Radio All Hazards transmitters broadcast on one of seven VHF frequencies from 162.400 MHz to 162.550 MHz. The broadcasts cannot be heard on a simple AM/FM radio receiver. However, there are many receiver options, ranging from handheld portable units which just pick upWeather Radio - to desktop and console models which receive Weather Radio in addition to other broadcasts.
NWR Station Listing
Call Sign WXJ52
Site Name Fayetteville
Site Location Winslow
Frequency 162.475
Power 1000
National Weather Service - Fayetteville
Severe Weather Warnings
Weather Safety (National Weather Service)
More Weather Safety (weather.com)
Tornado Myths
Arkansas Disaster Center