Airport information
- FAA LID
- WA00
- Coordinates
- 45.8985, -119.9156
- Elevation
- 780 ft MSL
- Magnetic variation
- 18E
- Sectional chart
- SEATTLE
- Airport use
- Private
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- SEATTLE
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2000/06
- Distance from city
- 2 NE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:31 AM | 11:31Z |
| Sunrise | 05:09 AM | 12:09Z |
| Sunset | 08:54 PM | 03:54Z |
| Evening civil twilight Loggable night begins | 09:32 PM | 04:32Z |
Plan a flight from WA00
Night operations
- Airport lighting
- SEE RMK
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 05
- Pattern
- left (turns left)
- TPA
- 1,800 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 05 at 1,800 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 05/23
2,200 ft × 40 ft · Gravel- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 05/23 | 2,200 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PSC · Pasco | VOR-DME | 108.40 | r217° / 39.8 NM |
VFR sectional
No published instrument procedures or Chart Supplement for WA00. VFR sectional link above.
Ownership & management
Remarks FAA
- ABRUPT DROPOFFS ON EACH END OF RY 05/23.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
- FOR LIRL CALL 509-894-4773/4491.
Nearby airports
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 WA00 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.
About WA00
Mercer Ranch Airport (WA00) is an airport in Alderdale, WA, at 780 ft MSL. It has 1 runway, the longest 2,200 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for WA00, refreshed from the Aviation Weather Center and FAA NASR.
Does WA00 have a control tower?
No. Mercer Ranch Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at WA00?
Mercer Ranch Airport has 1 runway; the longest is 2,200 ft. See the Runways tab for headings, surface, and lighting.
Where is WA00?
Mercer Ranch Airport is in Alderdale, WA, at an elevation of 780 ft MSL. Coordinates: 45.8985, -119.9156.
Fly out of WA00 often?
Save WA00 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.