Chester County G O Carlson Airport (KMQS) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Chester County G O Carlson Airport in Coatesville, PA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Chester County G O Carlson Airport (KMQS) is a general aviation airport serving pilots in and around Coatesville, PA at 660 ft. KMQS reports its own METAR — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 2 runways (11, 29) — longest 5,400 ft — are checked against the current wind in the crosswind table below. Automated weather is broadcast on 126.25. Track KMQS in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.
What changed at KMQS?
Since the 0315Z (11:15 PM EDT) report — compared automatically against the latest METAR.
- Visibility moved from 9 SM to 6 SM.
- Mist began (BR).
This is exactly what ATIS Alerts watches for you — get a Telegram message when KMQS's weather changes, free →
Current pilot readout for KMQS
A current METAR is not available for KMQS right now. Check back shortly, review a nearby reporting station, and always confirm with an official briefing before flight.
⚠️ 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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Stop refreshing aviation weather manually. Track KMQS in ATIS Alerts and get notified when a new METAR changes the picture — a category drop, or wind and ceiling moving toward your minimums.
Track KMQS 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 KMQS. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
Current wind is calm — calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 11 | 5,400 ft | ASP | — | — |
| 29 | 5,400 ft | ASP | — | — |
Open the crosswind calculator — 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 0→11 kt, ceiling unlimited → unlimited.
KMQS weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Chester County G O Carlson Airport in Coatesville, PA: 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 KMQS is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
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 KMQS
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KMQS reported a mix of conditions, most often VFR across 72 observations, with 20 flight-category changes. The strongest gust reached 22 kt, the lowest ceiling was 200 ft. Wind most often came from the S.
Most recent change: LIFR → VFR
Most recent change: MVFR → VFR
- 29
- 70%
- 11
- 30%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- ICAO
- KMQS
- IATA
- CTH
- FAA LID
- MQS
- City
- Coatesville
- State
- Pennsylvania
- Country
- United States
- Elevation
- 660 ft
- Coordinates
- 39.9790, -75.8655
- Runways
- 2
- Longest runway
- 5,400 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KLNS
- AWOS/ASOS
- 126.25 MHz
- Time zone
- America/New_York
- Next sunset
- 20h 27m
Run a flight school, FBO, or club here? Embed KMQS'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
8 airports+2 more within 25 NM
25–50 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.
- Chester County Radio Control Club - Sisk Field — Coatesville, PA · 2 mi
- Chester County Radio Control Club - Strasburg Field — Coatesville, PA · 6 mi
- Chester County Radio Control Club - Creek Rd. — Glenmoore, PA · 9 mi
Historical Flying Weather
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KMQS reported VFR conditions during about 77.5% of valid daylight observations, with an estimated 261 VFR flying days a year. November had the most VFR weather; December had the most instrument conditions. Surface winds averaged 5.3 kt, calm 25.2% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 77.1 | 9.0 | 3.7 | 10.3 |
| Feb | 76.5 | 7.4 | 4.1 | 11.9 |
| Mar | 76.9 | 8.5 | 4.6 | 10.0 |
| Apr | 77.9 | 9.7 | 4.9 | 7.5 |
| May | 71.3 | 10.7 | 6.8 | 11.2 |
| Jun | 79.4 | 9.4 | 4.6 | 6.6 |
| Jul | 80.2 | 9.8 | 4.7 | 5.3 |
| Aug | 79.7 | 9.1 | 4.8 | 6.4 |
| Sep | 75.8 | 9.5 | 5.8 | 9.0 |
| Oct | 73.5 | 11.5 | 5.9 | 9.1 |
| Nov | 81.9 | 8.0 | 3.3 | 6.8 |
| Dec | 70.8 | 10.2 | 4.8 | 14.2 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 6.7 kt |
| Feb | 6.7 kt |
| Mar | 7.1 kt |
| Apr | 6.7 kt |
| May | 5.1 kt |
| Jun | 4.3 kt |
| Jul | 3.5 kt |
| Aug | 3.5 kt |
| Sep | 4.0 kt |
| Oct | 4.9 kt |
| Nov | 5.9 kt |
| Dec | 6.0 kt |
Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KMQS weather — frequently asked
What runways are available at KMQS?+
KMQS has 2 runways — 11, 29; the longest is 5,400 ft. This page computes the live crosswind for each runway end from the current wind.
Does KMQS report its own weather?+
Yes — Chester County G O Carlson Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KMQS have a TAF?+
No — KMQS does not publish its own TAF. The nearest TAF station is KLNS, about 22 nm away.
Does KMQS broadcast D-ATIS?+
No — KMQS does not broadcast D-ATIS. Alerts for KMQS from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Pilot PIREPs for Chester County G O Carlson Airport (KMQS)
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 Chester County G O Carlson 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 KMQS 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.
Why pilots use ATIS Alerts
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- Get pinged the moment KMQS drops below VFR or a new report moves your numbers.
- Live METAR, TAF, crosswinds, and FAA delays — one link, always current.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport — showing METAR. METAR source temporarily unavailable.
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