Grosse Ile Municipal Airport (KONZ) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Grosse Ile Municipal Airport in Detroit/Grosse Ile, MI, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Grosse Ile Municipal Airport (KONZ) is a general aviation airport serving pilots in and around Detroit/Grosse Ile, MI at 591 ft. KONZ reports its own METAR — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (04, 17, 22, 35) — longest 4,846 ft — are checked against the current wind in the crosswind table below. Automated weather is broadcast on 119.675. Track KONZ 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.

VFR

Observed 0155Z (9:55 PM EDT)live · refreshes every 60s

Wind

050° 6 kt

Visibility

10+ sm

Ceiling

Unlimited

Altimeter

29.82"

Temp / Dew

22°C / 72°F

dew 19°C

Wind from the northeast (050°) at 6 kt, visibility 10+ statute miles, scattered clouds at 6,500 ft, temperature 22°C (72°F), altimeter 29.82 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR

METAR KONZ 290155Z AUTO 05006KT 10SM SCT065 22/19 A2982 RMK AO2

What changed at KONZ?

Since the 0135Z (9:35 PM EDT) report — compared automatically against the latest METAR.

The 6,500 ft ceiling dissipated — no ceiling now.

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Current pilot readout for KONZ

KONZ is currently VFR with winds from 050° at 6 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 17, about 5 knots. Density altitude is approximately 1,700 ft (field elevation 591 ft). KONZ does not publish a TAF — the nearest TAF station is KDTW, about 11 nm away.

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

Runway	Length	Surface	Head / Tail	Crosswind
04FAV	4,846 ft	CON	6 kt head	2 kt right
35	4,424 ft	CON	3 kt head	5 kt right
17	4,424 ft	CON	3 kt tail	5 kt left
22	4,846 ft	CON	6 kt tail	2 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

Over the last 24 h: wind 3→6 kt, ceiling unlimited → unlimited.

KONZ weather radar

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

Live weather radar around Grosse Ile Municipal Airport in Detroit/Grosse Ile, MI: 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 KONZ 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 KONZ

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

PIREP2332Z (7:32 PM EDT) · 70 NM S of KONZ · 3,000 ft MSL · C172

Show raw report

CLE UA /OV 10 NW MFD/TM 2332/FL030/TP C172/SK VMC/WX 10 SM

CLE UAHeader — reporting station and UA: a routine pilot report.

OV 10 NW MFDLocation — fix or navaid, optionally with a radial and distance in NM.

TM 2332Reported at 23:32 UTC.

FL030Altitude: 3,000 ft MSL.

TP C172Aircraft type reporting.

SK VMCSky condition — cloud bases and tops in hundreds of feet MSL.

WX 10 SMWeather and flight visibility observed.

PIREP2330Z (7:30 PM EDT) · 72 NM SE of KONZ · 43,000 ft MSL · E55P

occasional moderate chop turbulence

Show raw report

LPR UA /OV DJB080015/TM 2330/FL430/TP E55P/TB OCNL MOD CHOP/RM ZOB

LPR UAHeader — reporting station and UA: a routine pilot report.

OV DJB080015Location — fix or navaid, optionally with a radial and distance in NM.

TM 2330Reported at 23:30 UTC.

FL430Altitude: 43,000 ft MSL.

TP E55PAircraft type reporting.

TB OCNL MOD CHOPTurbulence: occasional moderate chop.

RM ZOBRemarks.

PIREP2229Z (6:29 PM EDT) · 57 NM SE of KONZ · during descent · A21N

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CLE UA /OV 15 NW CLE/TM 2229/FLDURD/TP A21N/WX VMC/RM 075 AND BELOW

CLE UAHeader — reporting station and UA: a routine pilot report.

OV 15 NW CLELocation — fix or navaid, optionally with a radial and distance in NM.

TM 2229Reported at 22:29 UTC.

FLDURDReported during descent.

TP A21NAircraft type reporting.

WX VMCWeather and flight visibility observed.

RM 075 AND BELOWRemarks.

PIREP2208Z (6:08 PM EDT) · 23 NM W of KONZ · 4,000 ft MSL · CRJ7

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DTW UA /OV 20 SW DXO/TM 2208/FL040/TP CRJ7/SK 040BKN070/TB NEG

DTW UAHeader — reporting station and UA: a routine pilot report.

OV 20 SW DXOLocation — fix or navaid, optionally with a radial and distance in NM.

TM 2208Reported at 22:08 UTC.

FL040Altitude: 4,000 ft MSL.

TP CRJ7Aircraft type reporting.

SK 040BKN070Sky condition — cloud bases and tops in hundreds of feet MSL.

TB NEGTurbulence: none reported.

URGENT2155Z (5:55 PM EDT) · 99 NM NE of KONZ · during descent · C172

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YZ UUA /OV CYQS /TM 2155 /FLDURD /TP C172 /RM WS RWY 27 -/+ 15KTS

YZ UUAHeader — reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).

OV CYQSLocation — fix or navaid, optionally with a radial and distance in NM.

TM 2155Reported at 21:55 UTC.

FLDURDReported during descent.

TP C172Aircraft type reporting.

RM WS RWY 27 -/+ 15KTSRemarks.

PIREP2154Z (5:54 PM EDT) · 47 NM N of KONZ · 3,700 ft MSL · P28B

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FNT UA /OV FNT140012/TM 2154/FL037/TP P28B/SK B037 T060

FNT UAHeader — reporting station and UA: a routine pilot report.

OV FNT140012Location — fix or navaid, optionally with a radial and distance in NM.

TM 2154Reported at 21:54 UTC.

FL037Altitude: 3,700 ft MSL.

TP P28BAircraft type reporting.

SK B037 T060Sky condition — cloud bases and tops in hundreds of feet MSL.

PIREP2125Z (5:25 PM EDT) · 42 NM SW of KONZ · 9,500 ft MSL · RV8

Show raw report

TOL UA /OV KTOL /TM 2125 /FL095 /TP RV8 /TA 10 /WV 33024KT /RM BKN BLO

TOL UAHeader — reporting station and UA: a routine pilot report.

OV KTOLLocation — fix or navaid, optionally with a radial and distance in NM.

TM 2125Reported at 21:25 UTC.

FL095Altitude: 9,500 ft MSL.

TP RV8Aircraft type reporting.

TA 10Outside air temperature, °C.

WV 33024KTWind (direction/speed) or wind-shear remarks.

RM BKN BLORemarks.

PIREP2120Z (5:20 PM EDT) · 75 NM NW of KONZ · 4,000 ft MSL · SR20

Show raw report

LAN UA /OV LAN/TM 2120/FL040/TP SR20/SK B040

LAN UAHeader — reporting station and UA: a routine pilot report.

OV LANLocation — fix or navaid, optionally with a radial and distance in NM.

TM 2120Reported at 21:20 UTC.

FL040Altitude: 4,000 ft MSL.

TP SR20Aircraft type reporting.

SK B040Sky condition — cloud bases and tops in hundreds of feet MSL.

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

Recent aviation weather trends at KONZ

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KONZ reported mostly VFR across 72 observations, with 10 flight-category changes. The strongest gust reached 19 kt, the lowest ceiling was 1,100 ft. Wind most often came from the N.

Last 24 hours

VFR 86%MVFR 13%IFR 1%

Wind avg/max: 8/17 kt

Max gust: 19 kt

Lowest ceiling: 1,100 ft

Lowest vis: —

Prevailing wind: N

Category changes: 10

Most recent change: MVFR → VFR

Last 7 days

VFR 95%MVFR 5%

Wind avg/max: 6/16 kt

Max gust: 23 kt

Lowest ceiling: 1,100 ft

Lowest vis: 5 sm

Prevailing wind: NW

Category changes: 8

Most recent change: MVFR → VFR

Active Runway - past 30 days

22: 38%
04: 25%
17: 20%
35: 17%

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Airport facts

Reference data from the OurAirports dataset.

Type: General aviation airport
ICAO: KONZ
FAA LID: ONZ
City: Detroit/Grosse Ile
State: Michigan
Country: United States
Elevation: 591 ft
Coordinates: 42.0991, -83.1615
Runways: 4
Longest runway: 4,846 ft
Weather reporting: Reports METAR
TAF: Nearest KDTW
AWOS/ASOS: 119.675 MHz
Time zone: America/Detroit
Next sunset: 22h 50m

Run a flight school, FBO, or club here? Embed KONZ's live status on your website — free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

Within 25 NM

8 airports

KDTWDetroit Metropolitan Wayne County AirportDetroit, MI11 nm NWVFR METAR · TAF KTTFCuster AirportMonroe, MI16 nm SWVFR METAR KYIPWillow Run AirportDetroit, MI18 nm NWVFR METAR · TAF KDETColeman A. Young Municipal AirportDetroit, MI20 nm NVFR METAR · TAF MI53Mills FieldNewport, MI7 nm SW 78MICarls AirportSouth Rockwood, MI7 nm SW

+2 more within 25 NM

25–50 NM

8 airports

KVLLOakland Troy AirportTroy, MI27 nm NVFR METAR KARBAnn Arbor Municipal AirportAnn Arbor, MI27 nm WMETAR KDUHToledo Suburban AirportLambertville, MI31 nm SWVFR METAR KMTCSelfridge Air National Guard Base AirportMount Clemens, MI34 nm NEVFR METAR · TAF KTDZToledo Executive AirportToledo, OH35 nm SWVFR METAR KPTKOakland County International AirportPontiac, MI36 nm NVFR METAR · TAF

+2 more within 50 NM

50–100 NM

8 airports

KUSEFulton County AirportWauseon, OH52 nm SWVFR METAR KPHNSt Clair County International AirportPort Huron, MI56 nm NEVFR METAR KFNTBishop International AirportFlint, MI58 nm NWVFR METAR · TAF KJXNJackson County Airport/Reynolds FieldJackson, MI59 nm WVFR METAR · TAF KTEWMason Jewett FieldMason, MI63 nm NWVFR METAR KLPRLorain County Regional AirportLorain/Elyria, OH63 nm SEVFR METAR

+2 more within 100 NM

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

Downriver Aeromodelers - Sigler Rd — S Rockwood, MI · 8 mi
Monroe Area Cloudbusters RC Club - Nike Park — Unnamed Road, MI · 13 mi
Signal Seekers Radio Control Club Inc 1 — Inkster, MI · 16 mi

All RC flying fields →

See all Michigan airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KONZ reported VFR conditions during about 77.5% of valid daylight observations, with an estimated 244 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 6.5 kt, calm 12.7% of the time.

VFR Score

Wind Score

Reliability Score

National VFR rank

#997 of 1,400

Regional rank

#12

State rank

Full historical breakdown

Daylight VFR

77.5%

MVFR

16.1%

IFR

4.6%

LIFR

2.4%

Est. VFR days/yr

244

Most VFR month

July

Fewest VFR month

December

Median ceiling

3,800 ft

Median visibility

10 sm

Calm wind

12.7%

Median wind

6 kt

Gusty hours

17.0%

Crosswind >15 kt

0.3%

Fog/mist days/yr

116

Thunderstorm days/yr

Summer density alt

1,916 ft

Flight category by month

VFRMVFRIFRLIFR

KONZ monthly flight-category distribution, 2006–2025
Month	VFR %	MVFR %	IFR %	LIFR %
Jan	57.5	28.1	8.8	5.6
Feb	66.5	21.7	8.0	3.9
Mar	75.3	16.6	5.1	3.0
Apr	81.3	12.3	4.3	2.1
May	82.1	12.3	4.0	1.6
Jun	87.4	9.2	2.5	0.9
Jul	89.8	8.0	1.6	0.6
Aug	87.9	9.4	2.3	0.3
Sep	81.7	13.0	3.5	1.7
Oct	81.2	13.6	3.9	1.3
Nov	74.9	18.3	4.4	2.4
Dec	56.5	31.1	7.3	5.1

Average wind by month

KONZ average wind by month, 2006–2025
Month	Mean wind (kt)
Jan	7.7 kt
Feb	7.4 kt
Mar	7.2 kt
Apr	7.4 kt
May	6.0 kt
Jun	5.6 kt
Jul	5.1 kt
Aug	5.0 kt
Sep	5.4 kt
Oct	6.6 kt
Nov	7.2 kt
Dec	7.3 kt

Great Lakes flying weather Most VFR airports Windiest airports Flying Weather Index

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KONZ weather — frequently asked

What runways are available at KONZ?+

KONZ has 4 runways — 04, 17, 22, 35; the longest is 4,846 ft. This page computes the live crosswind for each runway end from the current wind.

Does KONZ report its own weather?+

Yes — Grosse Ile Municipal Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KONZ have a TAF?+

No — KONZ does not publish its own TAF. The nearest TAF station is KDTW, about 11 nm away.

Does KONZ broadcast D-ATIS?+

No — KONZ does not broadcast D-ATIS. Alerts for KONZ from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Pilot PIREPs for Grosse Ile Municipal Airport (KONZ)

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 Grosse Ile Municipal 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 KONZ 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.

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