The U.S. aircraft register, updated daily
Plan a flight · Mon 7:03 am EDT (11:03 UTC)

Willow Run Airport to Kalamazoo/Battle Creek International YIP → AZO

90 nautical miles (103 statute miles) west on a straight line, true course 270°, about 276° magnetic at the departure end (variation 6W). At 120 knots that is 51 min at the quickest height in today's winds (6,500 ft, a 15-knot headwind), arriving about 7:54 am EDT (11:54 UTC). Right now YIP is VFR, wind from the southwest (230°) at 6 knots; AZO is marginal VFR, wind from the south (170°) at 5 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 2 flights in the DOT's last twelve reported months, the route's page.

The return flight

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

  • AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 70 nm of the route.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from YIP.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

  • CL35 at 6,000 ft, 25 nm north, 6:47 am EDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. At the departure end, 25 nm north of the line.
    as filed, and in English
    PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
    Report
    a routine report filed through PTK
    Where
    6 nm west (270°) of PTK
    Time
    10:47 UTC
    Height
    at 6,000 ft
    Aircraft
    CL35
    Sky
    overcast from 1,400 ft, tops 2,600 ft
    Remarks
    clear above 2,600 ft
  • B739 at 9,000 ft, 29 nm northeast, 6:33 am EDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. At the departure end, 29 nm northeast of the line.
    as filed, and in English
    DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
    Report
    a routine report filed through DTW
    Where
    26 nm northeast (033°) of DXO
    Time
    10:33 UTC
    Height
    at 9,000 ft
    Aircraft
    B739
    Sky
    clear
    Wind
    from 295° at 13 knots
    Turbulence
    none
    Icing
    none
    Remarks
    during the descent
  • MD83 at 2,500 ft, 39 nm south, 6:43 am EDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. 10 nm along the route, 39 nm south of the line.
    as filed, and in English
    TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
    Report
    a routine report filed through TOL
    Where
    over TOL
    Time
    10:43 UTC
    Height
    at 2,500 ft
    Aircraft
    MD83
    Remarks
    base 1,000 ft tops 2,500 ft clear above

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 2 forecast points nearest it (FWA, MKG). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft270° at 19 kt+19 kt101 kt53 min7:56 am EDT (11:56 UTC)
6,500 ft280° at 16 kt+15 kt14 °C105 kt51 min7:54 am EDT (11:54 UTC)
8,500 ft270° at 14 kt+14 kt11 °C106 kt51 min7:54 am EDT (11:54 UTC)
10,500 ft270° at 16 kt+16 kt6 °C104 kt52 min7:55 am EDT (11:55 UTC)
12,500 ft270° at 20 kt+20 kt2 °C100 kt54 min7:57 am EDT (11:57 UTC)
14,500 ft280° at 22 kt+22 kt-1 °C98 kt55 min7:58 am EDT (11:58 UTC)
16,500 ft280° at 25 kt+25 kt-5 °C95 kt57 min8:00 am EDT (12:00 UTC)
18,000 ft FL180290° at 28 kt+27 kt-8 °C93 kt58 min8:01 am EDT (12:01 UTC)
24,000 ft FL240280° at 32 kt+32 kt-20 °C88 kt1 h 01 min8:04 am EDT (12:04 UTC)
30,000 ft FL300270° at 38 kt+38 kt-35 °C82 kt1 h 06 min8:09 am EDT (12:09 UTC)
34,000 ft FL340280° at 45 kt+44 kt-44 °C76 kt1 h 11 min8:14 am EDT (12:14 UTC)
39,000 ft FL390300° at 62 kt+56 kt-52 °C64 kt1 h 24 min8:27 am EDT (12:27 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
FWAused from 0 nm out; 91 nm from the line270/20300/16 15°290/14 10°280/17 3°290/25 -7°280/30 -19°280/34 -35°290/48 -44°300/64 -52°
MKGused from 50 nm out; 75 nm from the line260/28260/18 15°250/16 9°260/22 4°280/31 -9°270/35 -21°270/44 -35°270/42 -45°290/61 -51°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

AirportWhereConditionsWindVisibilityCeilingElevationReported
YIP Detroit, MI departure VFR Sky: scattered clouds at 500 feet from the southwest (230°) at 6 knots 7 mi none 715 ft 6:53 am EDT (10:53 UTC)
JXN Jackson, MI 40 nm out, 2 nm northwest of the line, tower marginal VFR Weather: mist from the south-southwest (210°) at 3 knots 3 mi none 1,000 ft 10:56 UTC
RMY Marshall, MI 60 nm out, 3 nm west of the line VFR Weather: mist from the southwest (220°) at 2 knots 7 mi none 941 ft 10:56 UTC
AZO Kalamazoo, MI destination marginal VFR Weather: mist from the south (170°) at 5 knots 5 mi none 873 ft 6:53 am EDT (10:53 UTC)

The highest airport on this list sits at 1,000 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At AZO when you get there the forecast at the estimated arrival, 7:54 am EDT (11:54 UTC)

Wind from the south at 3 knots, visibility 4 miles, mist, clear skies marginal VFR

The whole forecast for AZO
  • From Mon 2:00 am EDT (06:00 UTC): wind from the south at 3 knots, visibility 4 miles, mist, clear skies
  • From Mon 8:00 am EDT (12:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
  • From Mon 1:00 pm EDT (17:00 UTC): wind from the south-southwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 20,000 feet
  • From Mon 6:00 pm EDT (22:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 8,000 feet
  • From Mon 11:00 pm EDT (03:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 5,000 feet, overcast at 8,000 feet
  • 30% chance between Mon 11:00 pm EDT (03:00 UTC) and 2:00 am EDT (06:00 UTC): visibility 2 miles, light thunderstorms with rain, mist, overcast at 3,500 feet (thunderheads)
The forecast for YIP, the departure
  • From Mon 4:00 am EDT (08:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, overcast at 1,000 feet
  • From Mon 4:30 am EDT (08:30 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
  • At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 4 miles, mist, a broken layer at 300 feet
  • From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
  • From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet
  • From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 feet

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Daylight

Sunset at YIP 6:57 pm EDT (22:57 UTC), at AZO 7:05 pm EDT (23:05 UTC) (civil twilight ends 7:33 pm EDT (23:33 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the central Great Lakes
Radar now, the central Great Lakes · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Willow Run Airport, Kalamazoo/Battle Creek International.