ATIS Alerts

Glen-Aspen Airport (4CO0) Area Aviation Weather & Runway Winds

Aviation weather near Glen-Aspen Airport in Carbondale, CO, decoded from the nearest reporting station (KASE) — conditions, runway crosswinds, and free Telegram airport alerts.

Glen-Aspen Airport (4CO0) is a general aviation airport serving pilots in and around Carbondale, CO at 6,835 ft. 4CO0 has no weather station of its own — conditions here are decoded from KASE, about 17 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (04, 22) — longest 3,165 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KASE. Track it in the ATIS Alerts Telegram bot to get alerts read from KASE, the station this page is based on.

VFR
Observed 0253Z (8:53 PM MDT)live · refreshes every 60s

No weather station at this airport — showing the nearest station KASE, 16.9 nm away.

Wind
190° 5 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.25"
Temp / Dew
19°C / 67°F
dew 9°C

Wind from the south (190°) at 5 kt, visibility 10+ statute miles, no cloud data, temperature 19°C (67°F), altimeter 30.25 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KASE 290253Z AUTO 19005KT 10SM CLR 19/09 A3025 RMK AO2 SLP103 T01940094 53001

What changed at KASE (nearest station)?

Since the 0153Z (7:53 PM MDT) report — compared automatically against the latest METAR.

  • Temperature fell 6°C between reports.
  • Pressure rising: altimeter 30.23 → 30.25 inHg.

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Current pilot readout for 4CO0

Based on the nearest station (KASE), 4CO0 is currently VFR with winds from 190° at 5 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 04, about 1 knots. Density altitude is approximately 8,600 ft (field elevation 6,835 ft). Review the latest TAF below for forecast changes before departure.

⚠️ 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 4CO0. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
04FAV5 kt tail1 kt left
225 kt tail1 kt left

Open the crosswind calculator — 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
0183604Z18Z02Z

Over the last 22 h: wind 75 kt, ceiling unlimitedunlimited.

4CO0 weather radar

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

Live weather radar around Glen-Aspen Airport in Carbondale, 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 4CO0 is headed.

Loading…
Loading radar…

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.

Pilot reports (PIREPs) within 100 NM of 4CO0

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0319Z (9:19 PM MDT) · 97 NM W of 4CO0 · during descent · CRJ7
light blo 230 turbulence
Show raw report
GJT UA /OV JNC304033/TM 0319/FL180/TP CRJ7/SK SKC/TB LGT BLO 230/RM DURD ZDVWC-11
GJT UAHeader — reporting station and UA: a routine pilot report.
OV JNC304033Location — fix or navaid, optionally with a radial and distance in NM.
TM 0319Reported at 03:19 UTC.
FL180Altitude: 18,000 ft MSL.
TP CRJ7Aircraft type reporting.
SK SKCSky condition — cloud bases and tops in hundreds of feet MSL.
TB LGT BLO 230Turbulence: light blo 230.
RM DURD ZDVWC-11Remarks.
PIREP0136Z (7:36 PM MDT) · 85 NM NW of 4CO0 · 35,000 ft MSL · B738
moderate chop turbulence
Show raw report
EEO UA /OV EKR305031/TM 0136/FL350/TP B738/TB MOD CHOP/RM ZDVWC-14
EEO UAHeader — reporting station and UA: a routine pilot report.
OV EKR305031Location — fix or navaid, optionally with a radial and distance in NM.
TM 0136Reported at 01:36 UTC.
FL350Altitude: 35,000 ft MSL.
TP B738Aircraft type reporting.
TB MOD CHOPTurbulence: moderate chop.
RM ZDVWC-14Remarks.
PIREP2350Z (5:50 PM MDT) · 88 NM E of 4CO0 · during descent · B739
moderate chop turbulence
Show raw report
DEN UA /OV 35 SW DEN/TM 2350/FL210/TP B739/TB MOD CHOP/RM 210-190 DURD
DEN UAHeader — reporting station and UA: a routine pilot report.
OV 35 SW DENLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2350Reported at 23:50 UTC.
FL210Altitude: 21,000 ft MSL.
TP B739Aircraft type reporting.
TB MOD CHOPTurbulence: moderate chop.
RM 210-190 DURDRemarks.
PIREP2344Z (5:44 PM MDT) · 68 NM N of 4CO0 · 36,000 ft MSL · B738
Show raw report
HDN UA /OV CHE/TM 2344/FL360/TP B738/TB NEG/RM ZDVWC-14
HDN UAHeader — reporting station and UA: a routine pilot report.
OV CHELocation — fix or navaid, optionally with a radial and distance in NM.
TM 2344Reported at 23:44 UTC.
FL360Altitude: 36,000 ft MSL.
TP B738Aircraft type reporting.
TB NEGTurbulence: none reported.
RM ZDVWC-14Remarks.
PIREP2328Z (5:28 PM MDT) · 66 NM N of 4CO0 · during descent · A320
light chop turbulence
Show raw report
HDN UA /OV C HE090050/TM 2328/FL230/TP A320/SK TOP300/TB LGT CHOP/RM DURD ZDVWC-13
HDN UAHeader — reporting station and UA: a routine pilot report.
OV C HE090050Location — fix or navaid, optionally with a radial and distance in NM.
TM 2328Reported at 23:28 UTC.
FL230Altitude: 23,000 ft MSL.
TP A320Aircraft type reporting.
SK TOP300Sky condition — cloud bases and tops in hundreds of feet MSL.
TB LGT CHOPTurbulence: light chop.
RM DURD ZDVWC-13Remarks.
PIREP2228Z (4:28 PM MDT) · 39 NM W of 4CO0 · 24,000 ft MSL · CRJ2
light rime icing
Show raw report
ASE UA /OV DBL270050/TM 2228/FL240/TP CRJ2/TA M17/IC LGT RIME/RM ZDVWC
ASE UAHeader — reporting station and UA: a routine pilot report.
OV DBL270050Location — fix or navaid, optionally with a radial and distance in NM.
TM 2228Reported at 22:28 UTC.
FL240Altitude: 24,000 ft MSL.
TP CRJ2Aircraft type reporting.
TA M17Outside air temperature, °C.
IC LGT RIMEIcing: light rime.
RM ZDVWCRemarks.
PIREP2210Z (4:10 PM MDT) · 69 NM E of 4CO0 · 20,000 ft MSL · E55P
light rime icing
Show raw report
DEN UA /OV 60 SW DEN/TM 2210/FL200/TP E55P/TA -5/IC LGT RIME
DEN UAHeader — reporting station and UA: a routine pilot report.
OV 60 SW DENLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2210Reported at 22:10 UTC.
FL200Altitude: 20,000 ft MSL.
TP E55PAircraft type reporting.
TA -5Outside air temperature, °C.
IC LGT RIMEIcing: light rime.
PIREP2205Z (4:05 PM MDT) · 100 NM E of 4CO0 · during climb · B737
light tb abv 110 turbulence
Show raw report
DEN UA /OV 20 W DEN/TM 2205/FLDURC/TP B737/TB LGT TB ABV 110
DEN UAHeader — reporting station and UA: a routine pilot report.
OV 20 W DENLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2205Reported at 22:05 UTC.
FLDURCReported during climb.
TP B737Aircraft type reporting.
TB LGT TB ABV 110Turbulence: light tb abv 110.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at 4CO0

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KASE reported mostly VFR across 28 observations, with 0 flight-category changes. The strongest gust reached 31 kt, the lowest ceiling was 7,200 ft. Wind most often came from the S.

Last 24 hours
VFR 100%
Wind avg/max: 7/16 kt
Max gust: 31 kt
Lowest ceiling: 7,200 ft
Lowest vis:
Prevailing wind: S
Category changes: 0
Last 7 days
VFR 99%MVFR 1%
Wind avg/max: 6/15 kt
Max gust: 29 kt
Lowest ceiling: 4,200 ft
Lowest vis: 5 sm
Prevailing wind: SW
Category changes: 2

Most recent change: MVFRVFR

Active Runway - past 30 days
04/22
100%

TAF — Terminal Aerodrome Forecast

Issued 2320Z (5:20 PM MDT)

TAF KASE 282320Z 2900/2924 17009KT P6SM SCT070 BKN100 PROB30 2900/2901 VRB15G25KT 4SM -TSRA BKN070CB FM290700 21006KT P6SM SCT080 SCT150 FM291500 36008KT P6SM BKN250 PROB30 2916/2920 VRB15G25KT 4SM -TSRA BKN070CB BKN080 FM292000 35008KT P6SM OVC250 PROB30 2920/2924 VRB15G25KT 4SM -TSRA BKN070CB

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Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
4CO0
City
Carbondale
State
Colorado
Country
United States
Elevation
6,835 ft
Coordinates
39.3896, -107.1637
Runways
2
Longest runway
3,165 ft
Weather reporting
Nearest station KASE
TAF
Nearest KASE
Time zone
America/Denver
Next sunset
22h 31m

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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 →

4CO0 weather — frequently asked

What runways are available at 4CO0?+

4CO0 has 2 runways — 04, 22; the longest is 3,165 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 4CO0 come from?+

Glen-Aspen Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KASE, about 17 nm away — close enough for situational awareness, but local conditions at 4CO0 can differ.

Does 4CO0 have a TAF?+

Yes — the KASE TAF is shown on this page below the current conditions.

Does 4CO0 broadcast D-ATIS?+

No — 4CO0 does not broadcast D-ATIS. Alerts for 4CO0 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Glen-Aspen Airport (4CO0)

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 Glen-Aspen 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 4CO0 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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