4CO3 pilot reports

Pilot reports filed within 100 NM of Griffin Field (4CO3), Walsh, CO. 1 in the current window, 1 reporting turbulence or icing, as of 18 Sep 2026 1251Z. · Open on the map

All of Griffin Field — runways, frequencies, charts and live weather

Live pilot reports within 100 NM · Aviation Weather Center

Plan view · 100 NM1 report

PUB UA

Position: 75 nm NW of 4CO3
Altitude: FL380
Aircraft: B737

PUB UA /OV PUB090045/TM 1240/FL380/TP B737/TB MOD CHOP/RM LGT MTW +/-5KT ZDVWC-29

Pilot reports are subjective, single-aircraft observations. Always confirm with an official preflight briefing.

All 1 report within 100 NM position · altitude · conditions · raw text

These reports are near 4CO3, not at it. Each gives its distance and bearing from the field — read one 60 NM away as regional context, not as this airport's conditions.

Moderate chop turbulence

Hazard

1240Z · 75 nm NW of 4CO3 · FL380 · B737

Remarks: LGT MTW +/-5KT ZDVWC-29

PUB UA /OV PUB090045/TM 1240/FL380/TP B737/TB MOD CHOP/RM LGT MTW +/-5KT ZDVWC-29

Frequently asked

Are there any PIREPs near 4CO3?

1 pilot report was filed within 100 NM of Griffin Field in the current reporting window, 1 of them reporting turbulence or icing.

What is a PIREP?

A pilot report is a first-hand account of conditions aloft filed by a pilot in flight: turbulence, icing, cloud bases and tops, flight visibility, wind and temperature. It is the only weather source that reports what an aircraft actually experienced rather than what a model or a ground sensor inferred. UA marks a routine report; UUA marks an urgent one.

How current are these reports?

The national PIREP feed carries roughly the last 90 minutes of reports and is republished every 5 minutes. A report is a snapshot of one aircraft at one place and time — conditions a few thousand feet away or twenty minutes later can differ.

More about 4CO3

Pilot reports from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

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