St Thomas Municipal Airport
4S5 · St Thomas, ND · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 09:40 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:31 AM | 10:31Z |
| Sunrise | 06:08 AM | 11:08Z |
| Sunset | 09:03 PM | 02:03Z |
| Evening civil twilight Loggable night begins | 09:40 PM | 02:40Z |
Plan a flight from 4S5
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 17LEFT traffic
- Heading
- 173° mag · 180° true
- Dimensions
- 2,600 × 50 ft
- TPA
- 1,800 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Displaced thr
- 280 ft
- CTAF
- 122.9
Enter the left downwind (heading 353°) on the 45° at 1,800 ft MSL (≈1,000 AGL).
More details — RWY 17
- Threshold elev
- 835 ft
- Markings
- basic
Pattern side + displaced threshold: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 2,600 ft |
Prefer one flat page? Full runway details for 4S5 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 4S5 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
HML 112.40
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HML · Humboldt | TACAN | 112.40 · 71X | — | r212° / 19.3 NM |
Prefer one flat list? All 4S5 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 4S5
- Coordinates
- 48.6264, -97.4392
- Elevation
- 839 ft MSL
- Magnetic variation
- 7E
- Sectional chart
- TWIN CITIES
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- GRAND FORKS · 122.2 · 1-800-WX-BRIEF
- NOTAM facility
- GFK
- Attendance
- MAY-SEP ALL DALGT; OCT-APR MON-FRI ON CALL
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1971/03
- Distance from city
- 1 NE
Night operations
- Airport lighting
- SEE RMK
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — 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
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
- Other services
- Agricultural
Ownership & management 2 contacts
Remarks FAA · 14 notes
General
- CFM WINTER CONDS & SN REMOVAL 701-360-7926.
- RWY 17/35; EXPECT TURBULENCE WHEN EXECUTING CROSS-WIND LNDGS DUE TO TREE LINES.
- DEER AND BIRDS ON & INVOF APRT
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Runways
- DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
- DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
- 60 FT TREE LINE 340 FT L AND R OF CNTRLN AT RWY 17 END PENETRATES 7:1 TRNSL SFC WITH A 3:1 SLOPE.
- 50 FT TREE LINE 160 FT R OF CNTRLN AT RWY 35 END PENETRATES 7:1 TRNSL SFC WITH A 1:1 SLOPE.
Lighting
- ACTVT LIRL RY 17/35 - 122.9.
- NSTD LIRL DUE TO FIXTURES & LCTD 25 FT FROM RWY EDGE.
Obstructions
- 18 FT ROAD 100 FT FM THLD.
- 16 FT ROAD 20 FT FM THLD.
- 18 FT ROAD 380 FT FM DSPLCD THLD.
- 16 FT ROAD 90 FT FM DSPLCD THLD.
Nearby airports
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Also nearby: 9ND1 Elliott Farms Airport (7 NM) · NA65 Anderson Strip (9 NM) · D29 Drayton Municipal Airport (10 NM) · 2C8 Cavalier Municipal Airport (12 NM) · 9ND8 Hinkle Airport (private) (13 NM)
About 4S5
St Thomas Municipal Airport (4S5) is an airport in St Thomas, ND, at 839 ft MSL. It has 1 runway, the longest 2,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4S5, refreshed from the Aviation Weather Center and FAA NASR.
Does 4S5 have a control tower?
No. St Thomas Municipal Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 4S5?
St Thomas Municipal Airport has 1 runway; the longest is 2,600 ft. See the Runways section for headings, surface, and lighting.
Where is 4S5?
St Thomas Municipal Airport is in St Thomas, ND, at an elevation of 839 ft MSL. Coordinates: 48.6264, -97.4392.
Fly out of 4S5 often?
Save 4S5 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 4S5 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.