State Employee Grant Program

STATE OF WASHINGTON
EMERGENCY ALERT SYSTEM

 

TAB 15
NOAA/NWS Information
[September 12, 2012]

National Weather Service (NWS) offices in Seattle, Spokane, Portland, and Pendleton are authorized to activate the Emergency Alert System (EAS) in Washington state. These four NWS offices have short-fuse county warning responsibility for their respective parts of Washington (see attached map). EAS event codes that NWS uses are listed in Tab 17 (EAS Master List).

EAS activation is recommended for short-fuse events (less than six hours to the event) - e.g. - tornado, severe thunderstorm, flash flood. In addition, EAS activation is authorized for flood warnings with unlimited lead time forecast to reach ‘major’ flood category, permitting time for low lying area evacuation. EAS activation is also authorized for ‘high-impact’ major wind storms with minimal coastal forecast wind speeds of 60 mph and/or gusts of 90 mph or more, and inland forecast winds of 50 mph and/or gusts of 75 mph or more, with restrictions on overnight activations.

NWS EAS messages are transmitted in Washington through NOAA Weather Radio (NWR) (see attached list of stations). NWS EAS message authentication is conducted through the EAS origination code.

If a NWS office is unable to activate EAS for a weather event because office communications are down or one or more NWR transmitters are off the air, Washington State Emergency Management serves as the backup and can transmit the EAS message for the NWS.

To report any kind of NOAA Weather Radio transmitter outage trouble, use this web site link to report the problem……http://www.nws.noaa.gov/nwr/outages.html. You can also contact the NWS forecast offices directly via these unlisted media phone numbers.

Seattle – 206-526-6857 |Portland – 503-326-2356 |Spokane 509-244-0537 |Pendleton – 541-276-4493

Watch/Warning Definitions

Outlook - The initial notice of potential hazardous flooding or weather. Issued up to 5 days in advance of a potential event, it is the initial message to help raise the first level of community awareness and preparedness, essentially serving as a "heads up.".

Watch - Conditions are favorable for hazardous weather to occur in a designated geographic area, but not yet certain. For short-fuse severe weather events (e.g. - severe thunderstorm, tornado), a watch can be issued up to 12 hours in advance. For long fuse events (e.g. - flood, high wind), a watch is issued from 12 to 48 hours in advance. "Prepare now!"

A watch is a planning tool, a second higher level of awareness and preparedness, permitting those who need to take preliminary actions to do so in a timely manner. Be alert, monitor NOAA Weather Radio or other weather information sources, and be PREPARED to take immediate action if the watch is changed to a warning.

Warning - Hazardous flood or significant weather is occurring or imminent within the next 12 hours in the designated geographic area(s). TAKE ACTION NOW to protect life and property!

 

NWS Office/
EAS Organization
Station Freq.
(MHz)
Transmitter
|Site
Counties Served
Seattle
KSEW/NWS
KHB-60, Seattle 162.55 Cougar Mtn
Snohomish, King, Pierce,
Kitsap
 
WXM-62, Olympia 162.475 Capitol Peak
Thurston, Grays Harbor, Mason,
Lewis, East Pacific, Pierce
 
WZ-2502
Upper Cowlitz

162.425 Bennett Rd Lewis
KIH-36,
Neah Bay
162.55 Bahokus Peak Clallam, West Jefferson
KXI-27
Forks
162.425 Mt Octopus West Clallam, West Jefferson, Grays Harbor, North Pacific
WWG-24
Puget Sound
162.425 Miller Peak
Clallam, East Jefferson, Island, Snohomish, Skagit, San Juan
KAD-93
Blaine
162.525 "H" Street, Blaine San Juan, Whatcom
Portland
KPQR/NWS
KIG-98
Portland
162.55 Goat Mtn
Clark, Western Skamania
 
KEC-91
Astoria
162.40 Naselle Ridge
Pacific, Wahkiakum, Grays Harbor
 
WNG-604,
Woodland
162.525 Davis Peak Clark, Cowlitz
Spokane
KOTX/NWS
WXL-86
Spokane
162.40 Mt Spokane
Spokane, Pend Oreille, Stevens, Lincoln, Whitman
 
WWF-49
Okanogan Valley
 
162.525 Tunk Mtn
Okanogan, Ferry
WXM-48
Wenatchee
162.475 Burch Mtn

Chelan, Douglas, Grant
 
WXK-98
Lewiston
162.55 Lewiston Ridge
Asotin, Garfield, Whitman
 
WWG-99
Bonners Ferry
162.50 Black Mountain Pend Oreille
 
Pendleton
KPDT/NWS
WXL-95
Spout Springs
162.40 Spout Springs
Walla Walla
 
KIG-75
Yakima
162.55 Yakima Ridge

 
Yakima, Eastern Kittitas
WWF-56
Tri-Cities
162.45 Rattlesnake Ridge Benton, Franklin, Grant, Yakima, Klickitat, Walla Walla,  Adams 
WWH-27
Hermiston,
Plymouth
162.425 Sillusi Butte Benton
KZZ-73
Dayton
162.525 Dewey Road
Columbia, Garfield
WXM-34
The Dalles
162.40 Stacker Butte
Southern Skamamia, Western Klickitat
WXN-21
Cle Elum
162.40 Sky Meadows
Kittitas

 
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