Weather radio in Arizona

WWF99: NOAA Weather Radio, Window Rock

162.550 MHz · 100 W · On the air

WWF99 broadcasts NOAA Weather Radio on 162.550 MHz (WX1 on most receivers) from Window Rock, with the transmitter at Piney Hill, Arizona, at 100 W. The National Weather Service office in Flagstaff, AZ programs it. It covers 4 counties in Arizona and New Mexico.

The transmitter and its neighbors

WWF99 (the largest dot) and the transmitters within 100 miles, colored by their status now.

  • On the air
  • Degraded
  • Off the air

The transmitter

Call sign
WWF99
Frequency
162.550 MHz (WX1)
Power
100 W
Status
On the air
Station
Window Rock
Transmitter site
Piney Hill
State
Arizona
NWS office
Flagstaff, AZ
Location
35.7610, -109.1678

Counties covered

Program a SAME receiver with the code of your county. Coverage is NWS’s note of the part of a county the signal reaches.

CountyStateSAME codeCoverage
ApacheArizona004001NC & N
CibolaNew Mexico035006W
McKinleyNew Mexico035031West & central
San JuanNew Mexico035045Southwest

Nearby transmitters

More

Weather radio in ArizonaEvery transmitterThe forecast hereAlerts in force in Arizona

Sources

Transmitters, status and county coverage from the National Weather Service’s NOAA Weather Radio county coverage listing (data). Public domain. Read September 28, 2026 at 2:36 PM UTC; held for an hour. Original at weather.gov. Report an outage to NWS at weather.gov/nwr.