4IS4 pilot reports
Pilot reports filed within 100 NM of Harrisburg Medical Center (4IS4), Harrisburg, IL. 5 in the current window, 3 reporting turbulence or icing, as of 21 Sep 2026 1931Z. · Open on the map
All of Harrisburg Medical Center — runways, frequencies, charts and live weatherLive pilot reports within 100 NM · Aviation Weather Center
- Position
- 72 nm N of 4IS4
- Altitude
- FL290
- Aircraft
- B38M
CMI UA /OV BIB270010/TM 1904/FL290/TP B38M/TB OCNL LGT-MOD CHOP
- Position
- 72 nm N of 4IS4
- Altitude
- FL290
- Aircraft
- B38M
CMI UA /OV BIB270010/TM 1904/FL290/TP B38M/TB OCNL LGT-MOD CHOP
Pilot reports are subjective, single-aircraft observations. Always confirm with an official preflight briefing.
All 5 reports within 100 NM position · altitude · conditions · raw text
These reports are near 4IS4, 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.
Light–moderate chop, occasional turbulence
Hazard1904Z · 72 nm N of 4IS4 · FL290 · B38M
CMI UA /OV BIB270010/TM 1904/FL290/TP B38M/TB OCNL LGT-MOD CHOP
Moderate turbulence
Hazard1849Z · 71 nm N of 4IS4 · FL290 · B39M
HUF UA /OV BIB/TM 1849/FL290/TP B39M/TB MOD
Light, continuous turbulence
Hazard1847Z · 36 nm NW of 4IS4 · FL290 · A321
Remarks: ZKC FDC FN
ENL UA /OV ENL145015/TM 1847/FL290/TP A321/TB CONS LGT/RM ZKC FDC FN
Overcast 1,400 ft
1810Z · 100 nm NW of 4IS4 · C525
Overcast 1,400 ft
ALN UA /OV KALN/TM 1810/FLDURC/TP C525/SK OVC014
Broken 2,700 ft
1808Z · 91 nm ENE of 4IS4 · C210
Broken 2,700 ft
Remarks: DURD R08
EVV UA /OV FRH270010/TM 1808/FLUNKN/TP C210/SK BKN027/RM DURD R08
Frequently asked
Are there any PIREPs near 4IS4?
5 pilot reports were filed within 100 NM of Harrisburg Medical Center in the current reporting window, 3 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 4IS4
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.