ATIS Alerts

Tercio Ranch Airstrip (3CO4) Area Aviation Weather & Runway Winds

Aviation weather near Tercio Ranch Airstrip in Stonewall, CO, decoded from the nearest reporting station (KRTN): conditions, runway crosswinds, and free Telegram airport alerts.

Tercio Ranch Airstrip (3CO4) is a general aviation airport serving pilots in and around Stonewall, CO at 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. Its 2 runways (13, 31), longest 3,700 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KALS. Track it in the ATIS Alerts Telegram bot to get alerts read from KRTN, the station this page is based on.

VFR
Observed 0653Z (12:53 AM MDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KRTN, 31.7 nm away.

Wind
040° 5 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.27"
Temp / Dew
55°F / 13°C
dew 48°F / 9°C

Wind from the northeast (040°) at 5 kt, visibility 10+ statute miles, no cloud data, temperature 13°C (55°F), altimeter 30.27 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KRTN 130653Z AUTO 04005KT 10SM CLR 13/09 A3027 RMK AO2 SLP159 T01280089 403170106

What changed at KRTN (nearest station)?

Since the 0553Z (11:53 PM MDT) report, compared automatically against the latest METAR.

No significant changes since the 0553Z report, conditions are holding steady.

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Current pilot readout for 3CO4

Based on the nearest station (KRTN), 3CO4 is currently VFR with winds from 040° at 5 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 31, about 4 knots. Density altitude is approximately 9,150 ft (field elevation 7,957 ft). 3CO4 does not publish a TAF. The nearest TAF station is KALS, about 46 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at 3CO4. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
13FAV4 kt head3 kt right
313 kt head4 kt right

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0153007Z19Z06Z

Over the last 23 h: wind 65 kt, ceiling unlimitedunlimited.

3CO4 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Tercio Ranch Airstrip in Stonewall, CO: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around 3CO4 is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

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 26 kt. Wind most often came from the E.

Last 24 hours
VFR 100%
Wind avg/max: 8/17 kt
Max gust: 26 kt
Lowest ceiling: -
Lowest vis: -
Prevailing wind: E
Category changes: 0
Last 7 days
VFR 99%MVFR 1%
Wind avg/max: 7/23 kt
Max gust: 33 kt
Lowest ceiling: 3,500 ft
Lowest vis: 3 sm
Prevailing wind: E
Category changes: 2

Most recent change: MVFRVFR

Active Runway - past 30 days
13/31
100%

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Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
3CO4
City
Stonewall
State
Colorado
Country
United States
Elevation
7,957 ft
Coordinates
37.0709, -105.0190
Runways
2
Longest runway
3,700 ft
Weather reporting
Nearest station KRTN
TAF
Nearest KALS
Time zone
America/Denver
Next sunset
17h 57m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

See all Colorado airports →

3CO4 weather: frequently asked

What runways are available at 3CO4?+

3CO4 has 2 runways: 13, 31; the longest is 3,700 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 3CO4 come from?+

Tercio Ranch Airstrip does not have its own weather station. Conditions shown here come from the nearest reporting station, KRTN, about 32 nm away, close enough for situational awareness, but local conditions at 3CO4 can differ.

Does 3CO4 have a TAF?+

No. 3CO4 does not publish its own TAF. The nearest TAF station is KALS, about 46 nm away.

Does 3CO4 broadcast D-ATIS?+

No. 3CO4 does not broadcast D-ATIS. Alerts for 3CO4 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Tercio Ranch Airstrip (3CO4)

Community-submitted

Community-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.

From the ATIS Alerts team

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