Lower Monumental Dam HeliportPrivate
WN84 · Kahlotus, 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 07:22 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:11 AM | 13:11Z |
| Sunrise | 06:41 AM | 13:41Z |
| Sunset | 06:52 PM | 01:52Z |
| Evening civil twilight Loggable night begins | 07:22 PM | 02:22Z |
Plan a flight from WN84
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 200 ft |
Prefer one flat page? Full runway details for WN84 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the WN84 kneeboard →
Comms & NavAids
Nearby navigation aids
PSC 113.75 · ALW 116.40
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| PSC · Pasco | VOR/DME | 113.75 · 84Y | Low | r038° / 29.4 NM |
| ALW · Walla Walla | VOR/DME | 116.40 · 111X | Low | r326° / 30.4 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for WN84 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- WN84
- Coordinates
- 46.5619, -118.5460
- Elevation
- 465 ft MSL
- Magnetic variation
- 19E
- Sectional chart
- SEATTLE
- Airport use
- Private
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- SEATTLE · 122.5 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1987/09
- Distance from city
- 0 N
Ownership & management 2 contacts
Remarks FAA · 1 notes
General
- FOR CD CTC CHINOOK APCH AT 509-542-4209, WHEN APCH CLSD CTC SEATTLE ARTCC AT 253-351-3694.
Nearby airports
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Also nearby: W09 Lower Monumental State (1 NM) · 3WA3 Angel Park (private) (5 NM) · 3WA4 Watson (private) (10 NM) · 35WA Fisher Ranch (private) (12 NM) · WA14 Connell City (private) (13 NM) · 37WA Baumann Farm INC (private) (17 NM)
About WN84
Lower Monumental Dam (WN84) is a heliport in Kahlotus, WA, at 465 ft MSL. It has 1 runway, the longest 200 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for WN84, refreshed from the Aviation Weather Center and FAA NASR.
Does WN84 have a control tower?
No. Lower Monumental Dam is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at WN84?
Lower Monumental Dam has 1 runway; the longest is 200 ft. See the Runways section for headings, surface, and lighting.
Where is WN84?
Lower Monumental Dam is in Kahlotus, WA, at an elevation of 465 ft MSL. Coordinates: 46.5619, -118.5460.
More about WN84
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 WN84 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.