Tercio Ranch Airstrip (3CO4) Area Aviation Weather & Runway Winds
As of 9:53 AM MDT, Oct 28, based on the nearest station (KRTN), 3CO4 is currently VFR with winds from 180° at 4 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Tercio Ranch Airstrip in Stonewall, CO, decoded from the nearest reporting station (KRTN): conditions and runway crosswinds.
Tercio Ranch Airstrip (3CO4) is a general aviation airport serving pilots in and around Stonewall, CO at a field elevation of 7,957 ft. 3CO4 has no weather station of its own. Conditions here are decoded from KRTN, about 32 nm away, the nearest reporting station, and local conditions can differ. It has one runway (13/31), the longest 3,700 ft. The nearest TAF is issued for KALS.
No weather station at this airport: showing the nearest station KRTN, 31.7 nm away.
Wind from the south (180°) at 4 kt, visibility 10+ statute miles, no cloud data, temperature 11°C (52°F), altimeter 30.19 inHg. Conditions are Visual Flight Rules (VFR).
METAR KRTN 281553Z AUTO 18004KT 10SM CLR 11/02 A3019 RMK AO2 SLP176 T01110022 $
What changed at KRTN (nearest station)?
Since the 1453Z (8:53 AM MDT) report, compared automatically against the latest METAR.
- Temperature up 4°C.
Current pilot readout for 3CO4
Based on the nearest station (KRTN), 3CO4 is currently VFR with winds from 180° at 4 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors southeast-facing runway ends (13). Density altitude is approximately 9,050 ft (field elevation 7,957 ft). 3CO4 does not publish a TAF. The nearest TAF station is KALS, about 46 nm away.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 13FAV | 3,700 ft | TURF-G | 3 kt head | 3 kt right |
| 31 | 3,700 ft | TURF-G | 3 kt tail | 3 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
3CO4 runways
1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 13/313,700 × 75 ft · TURF-GCurrent useno stated-runway source at 3CO4Wind
- 13
- 3 kt headwind · 3 kt crosswind from right
- 31
- 3 kt tailwind · 3 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→4 kt, ceiling unlimited → unlimited.
3CO4 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of 3CO4
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
PUB UA /OV KPUB/TM 1603/FL063/TP C172/TB NEG
PUB UAHeader: reporting station and UA: a routine pilot report.OV KPUBLocation: fix or navaid, optionally with a radial and distance in NM.TM 1603Reported at 16:03 UTC.FL063Altitude: 6,300 ft MSL.TP C172Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
PUB UA /OV PUB170040/TM 1513/FL3960/TP B38M/RM MTN WAVE +/-12KTS +/-50FT ZDVWC-46
PUB UAHeader: reporting station and UA: a routine pilot report.OV PUB170040Location: fix or navaid, optionally with a radial and distance in NM.TM 1513Reported at 15:13 UTC.FL3960Altitude: 39,600 ft MSL.TP B38MAircraft type reporting.RM MTN WAVE +/-12KTS +/-50FT…Remarks.Show raw report
PUB UA /OV KPUB/TM 1512/FL060/TP C25A/TB NEG
PUB UAHeader: reporting station and UA: a routine pilot report.OV KPUBLocation: fix or navaid, optionally with a radial and distance in NM.TM 1512Reported at 15:12 UTC.FL060Altitude: 6,000 ft MSL.TP C25AAircraft type reporting.TB NEGTurbulence: none reported.Show raw report
ALS UA /OV ALS120045/TM 1455/FL370/TP B737/TB NEG/RM LGT MTN WAVE +/-10KTS ZDVWC-30
ALS UAHeader: reporting station and UA: a routine pilot report.OV ALS120045Location: fix or navaid, optionally with a radial and distance in NM.TM 1455Reported at 14:55 UTC.FL370Altitude: 37,000 ft MSL.TP B737Aircraft type reporting.TB NEGTurbulence: none reported.RM LGT MTN WAVE +/-10KTS ZDV…Remarks.Show raw report
TAD UA /OV KTAD/TM 1437/FL075/TP UH60/TB NEG/IC NEG/RM WIND OUT OF WEST 20-25KTS ZDVWC
TAD UAHeader: reporting station and UA: a routine pilot report.OV KTADLocation: fix or navaid, optionally with a radial and distance in NM.TM 1437Reported at 14:37 UTC.FL075Altitude: 7,500 ft MSL.TP UH60Aircraft type reporting.TB NEGTurbulence: none reported.IC NEGIcing: none reported.RM WIND OUT OF WEST 20-25KTS…Remarks.Show raw report
PUB UA /OV PUB170040/TM 1408/FL360/TP B753/RM MTW +/-10KT ZDVWC-30
PUB UAHeader: reporting station and UA: a routine pilot report.OV PUB170040Location: fix or navaid, optionally with a radial and distance in NM.TM 1408Reported at 14:08 UTC.FL360Altitude: 36,000 ft MSL.TP B753Aircraft type reporting.RM MTW +/-10KT ZDVWC-30Remarks.Show raw report
PUB UA /OV PUB260030/TM 1347/FL220/TP BE20/TB LGT CHOP/RM LGT MTW +/-10KT ZDVWC
PUB UAHeader: reporting station and UA: a routine pilot report.OV PUB260030Location: fix or navaid, optionally with a radial and distance in NM.TM 1347Reported at 13:47 UTC.FL220Altitude: 22,000 ft MSL.TP BE20Aircraft type reporting.TB LGT CHOPTurbulence: light chop.RM LGT MTW +/-10KT ZDVWCRemarks.Show raw report
ARP UAL1333 3822N 10438W 1318 F360 255/047KT TB LGT WAVE OCNL LGT CHOP IC
ARP UAL1333 3822N 10438W 131…Header: reporting station and UA: a routine pilot report.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at 3CO4
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KRTN reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 19 kt. Wind most often came from the SW.
Most recent change: IFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 13
- 59%
- 31
- 41%
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Live crosswind meter
3CO4 has no weather feed online, so the wind comes from KRTN, 32 nm away.
Wind is 40° off runway 13, the end with the most headwind right now.
Have a weather station at 3CO4? Help us make your field's weather available to every pilot, free. Add your field's wx station →Turf · 3,700 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Attended
- 24 hours
- Control tower
- None
- Runway lights
- Sunset to sunrise
- Wind indicator
- Unlighted
Airport
- Type
- General aviation airport
- FAA LID
- 3CO4
- City
- Stonewall
- State
- Colorado
- Country
- United States
- Elevation
- 7,957 ft
- Coordinates
- 37.0709, -105.0190
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 3,700 ft
- Weather reporting
- Nearest station KRTN
- TAF
- Nearest KALS
- Time zone
- America/Denver
- Sunset in
- 7h 39m
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Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
2 airports25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
Pilot PIREPs for Tercio Ranch Airstrip (3CO4)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Tercio Ranch Airstrip, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for 3CO4 yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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