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W55 Kenmore Air Seaplane Base
Seattle, Washington, USA

GOING TO SEATTLE?

FAA INFORMATION EFFECTIVE 30 OCTOBER 2025

Location

FAA Identifier: W55
Lat/Long: 47-37-44.3530N 122-20-19.4560W
47-37.739217N 122-20.324267W
47.6289869,-122.3387378
(estimated)
Elevation: 14 ft. / 4 m (estimated)
Variation: 20E (1985)
From city: 1 mile N of SEATTLE, WA
Time zone: UTC -8 (UTC -7 during Daylight Saving Time)
Zip code: 98109

Seaplane Base Operations

Seaplane Base use: Open to the public
Activation date: 09/1947
Control tower: no
ARTCC: SEATTLE CENTER
FSS: SEATTLE FLIGHT SERVICE STATION
NOTAMs facility: SEA (NOTAM-D service available)
Attendance: DAWN-DUSK
Wind indicator: yes
Segmented circle: no
Landing fee: no, $150 TRANSIT DOCKING FEE.
International operations: customs landing rights airport

Seaplane Base Communications

CTAF: 122.9
WX ASOS at BFI (6 nm S): PHONE 206-658-6435
WX ASOS at RNT (10 nm SE): 126.95 (425-255-6080)
WX ASOS at SEA (11 nm S): PHONE 206-214-2592
WX ASOS at PAE (17 nm N): PHONE 425-355-6192
WX AWOS-3PT at PWT (19 nm SW): 121.2 (360-674-2811)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
SEAr335/11.7SEATTLE VORTAC116.8019E
PAEr168/17.6PAINE VOR/DME110.6020E

Seaplane Base Services

Bottled oxygen: NONE
Bulk oxygen: NONE

Runway Information

Runway 16W/34W

Dimensions: 5000 x 500 ft. / 1524 x 152 m
Surface: water
RUNWAY 16W  RUNWAY 34W
Traffic pattern: leftleft

Seaplane Base Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: GREEN HORNET ENTERPRISES LLC, ET AL
P O BOX 82064
KENMORE, WA 98028
Phone 425-486-1257
OWNERS: GREEN HORNET ENTERPRISES LLC AND MUNRO BANKS HOLDCO INC.
Manager: SARAH FELLER
950 WESTLAKE AVENUE N
SEATTLE, WA 98109
Phone 425-486-1257
EXTN 2240.

Additional Remarks

- APCH SURFACE DATA NOT CHECKED.
- FUEL AVBL EMERG ONLY.
- KENMORE AIR LAKE UNION DOCK FREQ 130.30.
- FOR CD CTC SEATTLE APCH AT 206-214-4722.
- FIVE TEMPO BUOYS HAVE BEEN PLACED ALONG THE NORTH-SOUTH CNTRLN OF LAKE UNION, EACH SEPARATED BY APPROXIMATELY 750FT, AND MARK THE APRX LOCATION OF THE PREFERRED SEAPLANE OPR AREA. THE BUOYS HAVE A YELLOW FLASHING LIGHT THAT CAN BE ACTVT BY FIVE CLICKS ON 122.9, TO ALERT BOATERS OF AN IMPENDING SEAPLANE TKOF OR LANDING. RUN TIME ON THE LIGHTS IS 60 SECONDS. THE BUOY/LIGHT SYSTEM IS ADVISORY ONLY, AND BOATERS ARE NOT REQUIRED TO CLEAR THE AREA. THE BUOYS WILL BE REMOVED WITHIN FIVE DAYS FOLLOWING LABOR DAY, OR EARLIER.
- INCRD BOATING OPNS ON LAKE MAY 15 THRU SEP 15.
- SPECIAL NOISE ABATEMENT RULES IN EFFECT CONTACT OPERATOR FOR PATTERN INFORMATION.
- KITE FLYING IN PUBLIC PARK AT N END OF ARPT AND UAVS OPERATING AT THE N AND S ENDS.
- NIGHT LANDINGS NOT RECOMMENDED DUE TO UNLIGHTED SMALL WATERCRAFT.
- DO NOT TAXI CLOSER THAN 200 FT FM SHORELINE EXCP IN CLOSE PROXIMITY TO KENMORE AIR HARBOR.
- ALL TAKEOFFS & LANDINGS IN CENTER OF LAKE.
- WHEN CONSISTENT WITH SAFETY, AVOID 'ON THE STEP' OPERATIONS SOUTH AND WEST OF RED BUOY.
- CALL 425-486-1257 X2010 FOR APVL AT LEAST 3 HRS PRIOR TO ARR. DOCKING FEE.

Instrument Procedures

There are no published instrument procedures at W55.

Some nearby airports with instrument procedures:

KBFI - Boeing Field/King County International Airport (6 nm S)
KRNT - Renton Municipal Airport (10 nm SE)
KSEA - Seattle-Tacoma International Airport (11 nm S)
KPAE - Seattle Paine Field International Airport (17 nm N)
S50 - Auburn Municipal Airport (19 nm S)
S43 - Harvey Field Airport (19 nm NE)
KPWT - Bremerton National Airport (19 nm SW)
  
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Area around W55 (Kenmore Air Seaplane Base)
 
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Aerial photo
WARNING: Photo may not be current or correct
Aerial photo of W55 (Kenmore Air Seaplane Base)
Photo taken 24-Jan-2007
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From to W55

Sunrise and sunset
Times for 20-Nov-2025
 Local
(UTC-8)		 Zulu
(UTC)
Morning civil twilight06:4914:49
Sunrise07:2315:23
Sunset16:2700:27
Evening civil twilight17:0101:01

Current date and time
Zulu (UTC)  21-Nov-2025 04:39:51
Local (UTC-8)  20-Nov-2025 20:39:51
 
METAR
KBFI 
5nm S 		210353Z 14005KT 10SM CLR 08/06 A3014 RMK AO2 SLP207 T00830056
KRNT 
9nm SE 		210353Z AUTO VRB04KT 10SM CLR 08/06 A3015 RMK AO2 SLP215 T00830061
KSEA 
11nm S 		210353Z 14010KT 10SM CLR 08/06 A3014 RMK AO2 SLP215 T00830056 $
KPAE 
17nm N 		210353Z 17007KT 10SM CLR 08/05 A3014 RMK AO2 SLP211 T00780050
KPWT 
18nm SW 		210415Z AUTO 27003KT 2SM BR CLR 03/03 A3016 RMK AO2
TAF
KBFI 
5nm S 		201739Z 2018/2118 17006KT P6SM SCT020 OVC120 FM201900 18008KT P6SM SCT030 OVC045 FM210000 VRB03KT P6SM SCT060 BKN120 FM210400 16005KT P6SM BKN045 FM211100 16003KT P6SM BKN027
KSEA 
11nm S 		210308Z 2103/2206 14006KT P6SM FEW050 FM211000 16004KT P6SM BKN027 FM211900 18003KT P6SM BKN035 OVC040 FM212100 19005KT P6SM OVC100 FM220300 18004KT P6SM OVC040
KPAE 
17nm N 		202012Z 2020/2118 16010KT P6SM OVC018 FM202200 18007KT P6SM SCT025 OVC040 FM202300 17005KT P6SM SCT060 BKN120 FM210600 15005KT P6SM BKN045 FM210800 18005KT P6SM BKN027 OVC035
KPWT 
18nm SW 		201839Z 2019/2118 20006KT P6SM OVC010 FM202200 21007KT P6SM SCT025 OVC040 FM210000 VRB03KT P6SM SCT060 BKN120 FM210800 21003KT 4SM BR BKN004
NOTAMs
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