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GRAND COULEE DAM - Airport Diagram
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3W7
GRAND COULEE DAM
PublicPUB

2 miles SW of ELECTRIC CITY, WA
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Operational
47° 55' 19"N 119° 04' 59"W
1593' MSL
2593' MSL
15E
None Listed
SEATTLE (SEA)
SEATTLE
SEATTLE (ZSE)
11/27/25-12/25/25
KOMK (37nm) VFR
8:20 AM PST  
Broken 9,000'
Scattered 700'
Few 300'
10sm
38°F
37°F
29.97"Hg
160° 7kts
AO2 T00330028
SPECI KOMK 141620Z AUTO 16007KT 10SM FEW003 SCT007 BKN090 03/03 A2997 RMK AO2 T00330028
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-- 122.9

AWOS-3PT

AWOS-3PT
509-631-8955
 128.325

FAA A/FD Pages

Airport Diagrams

  • No Documents

Airport Minimums

Departure Procedures

Hotspot

  • No Documents

Standard Term. Arrival

  • No Documents

Instrument Approach

Terminal Area Forecast

KMWH (45nm)
Sun, 12/14 3:45 AM PST
Sun, 12/14 4:00 AM PST - Mon, 12/15 4:00 AM PST
LIFR
4:00 AM PST - 10:00 AM PST
Fog
Obscured
0.25sm
VRB° 3kts
LIFR
10:00 AM PST - 1:00 PM PST
Mist
Broken 400'
5sm
VRB° 3kts
VFR
1:00 PM PST - 12:00 AM PST
Broken 15,000'
Scattered 600'
6sm
VRB° 3kts
VFR
12:00 AM PST - 4:00 AM PST
Overcast 8,000'
6sm
140° 5kts
TAF KMWH 141145Z 1412/1512 VRB03KT 1/4SM FG VV002
   FM141800 VRB03KT 5SM BR BKN004
   FM142100 VRB03KT P6SM SCT006 BKN150
   FM150800 14005KT P6SM OVC080
3W7
EffectiveExpiresCategoryNOTAM
Domestic
12/8/25
1644Z
2/8/26
2359Z
!SEA 12/118 3W7 OBST TOWER LGT (ASR 1295133) 475724.10N1190055.30W (3.4NM NE 3W7) 2588.3FT (261.2FT AGL) U/S 2512081644-2602082359
No
UNATNDD
GRANT CO PORT DIST NR 7
P.O. BOX 616
GRAND COULEE, WA 99133
Phone: 509-631-4797
ROBERT BABLER
P.O. BOX 182
GRAND COULEE, WA 99133
Phone: 509-631-4797
SEATTLE FSS (SEA)
Toll Free: 1-800-WX-BRIEF
SEA
--
ACTVT REIL RWY 22; PAPI RWY 22; MIRL RWY 04/22 - CTAF.
N/A
Yes - Lighted
Yes
No
Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
None
None
None
None
None

Runway 04/22

4203 ft. x 75 ft.
ASPH  
Good 
NONE 
MED 
 
26,000lbs 
-- 
-- 
-- 
  Runway 04 Runway 22
True Heading 51°231°
Traffic Pattern Left Right
Markings BSC NPI
Markings Condition GOOD GOOD
Latitude 47° 55' 06"N 47° 55' 32"N
Longitude 119° 05' 23"W 119° 04' 35"W
Elevation 1,589' 1,589'
Threshold Crossing Height -- 53 ft. AGL
Visual Glide Path Angle -- 4.2°
Visual Slope Indicator -- P2L
Approach Lights
Centerline Lights
Runway End Identifier Lights Yes
A110-1GEESE & WILDLIFE INVOF RWY.
A110-2FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
GRAND COULEE DAM (IATA: 3W7) is a public airport located in ELECTRIC CITY, WA.