Mertens Airport (3CO2) Area Aviation Weather & Runway Winds
Aviation weather near Mertens Airport in Sterling, CO, decoded from the nearest reporting station (KSTK): conditions, runway crosswinds, and free Telegram airport alerts.
Mertens Airport (3CO2) is a general aviation airport serving pilots in and around Sterling, CO at 4,192 ft. 3CO2 has no weather station of its own. Conditions here are decoded from KSTK, about 3 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (18, 36), longest 4,000 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KSNY. Track it in the ATIS Alerts Telegram bot to get alerts read from KSTK, the station this page is based on.
No weather station at this airport: showing the nearest station KSTK, 3.1 nm away.
Wind from the south-southeast (150°) at 9 kt, visibility 10+ statute miles, no cloud data, temperature 14°C (57°F), altimeter 30.08 inHg. Conditions are Visual Flight Rules (VFR).
METAR KSTK 130655Z AUTO 15009KT 10SM CLR 14/10 A3008 RMK AO2
What changed at KSTK (nearest station)?
Since the 0635Z (12:35 AM MDT) report, compared automatically against the latest METAR.
No significant changes since the 0635Z report, conditions are holding steady.
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Current pilot readout for 3CO2
Based on the nearest station (KSTK), 3CO2 is currently VFR with winds from 150° at 9 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 18, about 4 knots. Density altitude is approximately 4,900 ft (field elevation 4,192 ft). 3CO2 does not publish a TAF. The nearest TAF station is KSNY, about 33 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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Track 3CO2 free on TelegramRunway 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 3CO2. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 18FAV | 4,000 ft | GRVL-DIRT | 8 kt tail | 4 kt right |
| 36 | 4,000 ft | GRVL-DIRT | 8 kt tail | 4 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.
Over the last 24 h: wind 11→9 kt, ceiling unlimited → unlimited.
3CO2 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Mertens Airport in Sterling, 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 3CO2 is headed.
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.
Pilot reports (PIREPs) within 100 NM of 3CO2
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
DEN UA /OV 1 EAST/TM 0320/FL060/TP CRJ2/RM SMOOTH RIDE
DEN UAHeader: reporting station and UA: a routine pilot report.OV 1 EASTLocation: fix or navaid, optionally with a radial and distance in NM.TM 0320Reported at 03:20 UTC.FL060Altitude: 6,000 ft MSL.TP CRJ2Aircraft type reporting.RM SMOOTH RIDERemarks.Show raw report
DEN UA /OV DEN/TM 0226/FL080/TP A320/TB SMOOTH
DEN UAHeader: reporting station and UA: a routine pilot report.OV DENLocation: fix or navaid, optionally with a radial and distance in NM.TM 0226Reported at 02:26 UTC.FL080Altitude: 8,000 ft MSL.TP A320Aircraft type reporting.TB SMOOTHTurbulence: smooth.Show raw report
DEN UA /OV 50 NE/TM 0209/FL140/TP B739/TB MOD 140-110
DEN UAHeader: reporting station and UA: a routine pilot report.OV 50 NELocation: fix or navaid, optionally with a radial and distance in NM.TM 0209Reported at 02:09 UTC.FL140Altitude: 14,000 ft MSL.TP B739Aircraft type reporting.TB MOD 140-110Turbulence: moderate 14,000–11,000 ft.Show raw report
BFF UA /OV BFF/TM 0145/FL210/TP SW4/TB NEG/IC NEG/RM ZDVWC
BFF UAHeader: reporting station and UA: a routine pilot report.OV BFFLocation: fix or navaid, optionally with a radial and distance in NM.TM 0145Reported at 01:45 UTC.FL210Altitude: 21,000 ft MSL.TP SW4Aircraft type reporting.TB NEGTurbulence: none reported.IC NEGIcing: none reported.RM ZDVWCRemarks.Show raw report
EIK UA /OV DEN310025 /TM 0145 /FLUNKN /TP C182 /SK FEW140 /TB NEG /RM SMOOTH
EIK UAHeader: reporting station and UA: a routine pilot report.OV DEN310025Location: fix or navaid, optionally with a radial and distance in NM.TM 0145Reported at 01:45 UTC.FLUNKNAltitude unknown.TP C182Aircraft type reporting.SK FEW140Sky condition: cloud bases and tops in hundreds of feet MSL.TB NEGTurbulence: none reported.RM SMOOTHRemarks.Show raw report
DEN UA /OV DEN/TM 0126/FL070/TP E175/TB SMOOTH
DEN UAHeader: reporting station and UA: a routine pilot report.OV DENLocation: fix or navaid, optionally with a radial and distance in NM.TM 0126Reported at 01:26 UTC.FL070Altitude: 7,000 ft MSL.TP E175Aircraft type reporting.TB SMOOTHTurbulence: smooth.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at 3CO2
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KSTK reported mostly VFR across 72 observations, with 0 flight-category changes. The strongest gust reached 25 kt, the lowest ceiling was 3,700 ft. Wind most often came from the SE.
Most recent change: MVFR → VFR
- 18/36
- 100%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- 3CO2
- City
- Sterling
- State
- Colorado
- Country
- United States
- Elevation
- 4,192 ft
- Coordinates
- 40.6164, -103.3324
- Runways
- 2
- Longest runway
- 4,000 ft
- Weather reporting
- Nearest station KSTK
- TAF
- Nearest KSNY
- Time zone
- America/Denver
- Next sunset
- 17h 54m
Run a flight school, FBO, or club here? Embed 3CO2's live status on your website, free →
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
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Sterling Miniature Aircraft Assn - CR 370 , Sterling, CO · 11 mi
3CO2 weather: frequently asked
What runways are available at 3CO2?+
3CO2 has 2 runways: 18, 36; the longest is 4,000 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 3CO2 come from?+
Mertens Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KSTK, about 3 nm away, close enough for situational awareness, but local conditions at 3CO2 can differ.
Does 3CO2 have a TAF?+
No. 3CO2 does not publish its own TAF. The nearest TAF station is KSNY, about 33 nm away.
Does 3CO2 broadcast D-ATIS?+
No. 3CO2 does not broadcast D-ATIS. Alerts for 3CO2 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Mertens Airport (3CO2)
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 Mertens Airport, 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 3CO2 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.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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