U91 pilot reports

Pilot reports filed within 100 NM of Grasmere (U91), Grasmere, ID. 2 in the current window, 1 reporting turbulence or icing, as of 2 Nov 2026 1636Z. · Open on the map

All of Grasmere — runways, frequencies, charts and live weather

Live pilot reports within 100 NM · Aviation Weather Center

Plan view · 100 NM2 reports
255075100NESW
TWF UA
Position
56 nm ENE of U91
Altitude
FL350
Aircraft
A321

TWF UA /OV TWF310020/TM 1601/FL350/TP A321/TB LGT MOD CHOP/ZLC

Profile · by altitude
0k5k10k15kFL200FL250FL300FL350FL400Field elevation 5,144 ftFL350 · 56 nm · TWF UA /OV TWF310020/TM 1601/FL350/TP A321/TB LGT MOD CHOP/ZLC300 ft · 97 nm · SUN UA /OV KSUN/TM 1528/FL003/TP SF50/SK OVC-TOP003/RM DURC RY13050100DISTANCE FROM FIELD (NM)
TWF UA
Position
56 nm ENE of U91
Altitude
FL350
Aircraft
A321

TWF UA /OV TWF310020/TM 1601/FL350/TP A321/TB LGT MOD CHOP/ZLC

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

All 2 reports within 100 NM position · altitude · conditions · raw text

These reports are near U91, 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

1601Z · 56 nm ENE of U91 · FL350 · A321

TWF UA /OV TWF310020/TM 1601/FL350/TP A321/TB LGT MOD CHOP/ZLC

Overcast, tops 300 ft

1528Z · 97 nm NE of U91 · 300 ft · SF50

Overcast, tops 300 ft

Remarks: DURC RY13

SUN UA /OV KSUN/TM 1528/FL003/TP SF50/SK OVC-TOP003/RM DURC RY13

Frequently asked

Are there any PIREPs near U91?

2 pilot reports were filed within 100 NM of Grasmere 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 U91

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.

Something here wrong or out of date? Report a data problem.