Rosario Seaplane Base Seaplane Base
W49 · RSJ · Rosario, WA · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-07 · night begins 09:16 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:17 AM | 12:17Z |
| Sunrise | 05:53 AM | 12:53Z |
| Sunset | 08:40 PM | 03:40Z |
| Evening civil twilight Loggable night begins | 09:16 PM | 04:16Z |
Plan a flight from W49
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
Airspace hazards
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Runways
| Runway | Length | Your margin |
|---|---|---|
| 07/25 | 2,500 ft | |
| 16/34 | 10,000 ft |
Prefer one flat page? Full runway details for W49 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the W49 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
NUW 113.80 · HUH 113.00 · CVV 117.20
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| NUW · Whidbey Island | TACAN | 113.80 · 85X | — | r317° / 19.3 NM |
| HUH · Whatcom | TACAN | 113.00 · 77X | — | r193° / 21.3 NM |
| CVV · Penn Cove | VOR/DME | 117.20 · 119X | Low | r328° / 24.7 NM |
Prefer one flat list? All W49 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- W49 / RSJ
- Coordinates
- 48.6457, -122.8680
- Elevation
- 0 ft MSL
- Magnetic variation
- 21E
- Sectional chart
- SEATTLE
- Airport use
- Public
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- SEATTLE · 122.5 · 1-800-WX-BRIEF
- NOTAM facility
- SEA
- Attendance
- ALL DALGT
- Segmented circle
- No
- Activated
- 1948/01
- Distance from city
- 0 S
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 128.25 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management 2 contacts
Remarks FAA · 4 notes
General
- TRANSIENT DOCK AVBL.
- CTC HARBORMASTER FOR OVNGT SEAPLANE MOORAGE, 360-472-4866. SLCT OPTION 4 FOR MARINA OFC.
- FOR CD CTC WHIDBEY APCH AT 360-257-3310.
Contact
- SELECT #4 FOR MARINA OFFICES
Nearby airports
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Also nearby: WA35 Clam Harbor Airport (private) (3 NM) · WA83 Westsound/WSX Seaplane Base (private) (4 NM) · 38WA Blakely Island Airport (private) (4 NM) · 6WA5 Wilding Farm Airport (private) (5 NM) · 88WA Deer Harbor SPB (private) (6 NM)
About W49
Rosario Seaplane Base (W49 · RSJ) is a seaplane base in Rosario, WA, at 0 ft MSL. It has 2 runways, the longest 10,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for W49, refreshed from the Aviation Weather Center and FAA NASR.
Does W49 have a control tower?
No. Rosario Seaplane Base is a non-towered (pilot-controlled) seaplane base; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at W49?
Rosario Seaplane Base has 2 runways; the longest is 10,000 ft. See the Runways section for headings, surface, and lighting.
Where is W49?
Rosario Seaplane Base is in Rosario, WA, at an elevation of 0 ft MSL. Coordinates: 48.6457, -122.8680.
Fly out of W49 often?
Save W49 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open W49 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.