Lake Sawyer Double E Seaplane BasePrivate
WA41 · Black Diamond, WA · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-22 · night begins 07:37 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:24 AM | 13:24Z |
| Sunrise | 06:55 AM | 13:55Z |
| Sunset | 07:06 PM | 02:06Z |
| Evening civil twilight Loggable night begins | 07:37 PM | 02:37Z |
Plan a flight from WA41
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 15W/33W | 6,055 ft |
Prefer one flat page? Full runway details for WA41 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the WA41 kneeboard →
Comms & NavAids
Nearby navigation aids
SEA 116.80 · TCM 109.60 · PAE 110.60
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| SEA · Seattle | VORTAC | 116.80 · 115X | High | r100° / 12.8 NM |
| TCM · Mcchord | TACAN | 109.60 · 33X | — | r043° / 21.2 NM |
| PAE · Paine | VOR/DME | 110.60 · 43X | Low | r144° / 36.6 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for WA41 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- WA41
- Coordinates
- 47.3333, -122.0333
- Elevation
- 520 ft MSL
- Sectional chart
- SEATTLE
- Airport use
- Private
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- SEATTLE · 122.5 · 1-800-WX-BRIEF
- Segmented circle
- No
- Activated
- 2018/11
- Distance from city
- 3 NNW
Ownership & management 2 contacts
Nearby airports
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Also nearby: 95WA Black Diamond (private) (1 NM) · S36 Crest Airfield (3 NM) · 51WA Evergreen Sky Ranch (private) (4 NM) · WA84 Auburn Academy (private) (6 NM) · WN76 Bergseth Field (private) (7 NM) · WN87 Bryan (private) (8 NM)
About WA41
Lake Sawyer Double E (WA41) is a seaplane base in Black Diamond, WA, at 520 ft MSL. It has 1 runway, the longest 6,055 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for WA41, refreshed from the Aviation Weather Center and FAA NASR.
Does WA41 have a control tower?
No. Lake Sawyer Double E is a non-towered (pilot-controlled) seaplane base; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at WA41?
Lake Sawyer Double E has 1 runway; the longest is 6,055 ft. See the Runways section for headings, surface, and lighting.
Where is WA41?
Lake Sawyer Double E is in Black Diamond, WA, at an elevation of 520 ft MSL. Coordinates: 47.3333, -122.0333.
More about WA41
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 WA41 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.
Something here wrong or out of date? Report a data problem.