Ann Arbor Municipal to Rocky Mountain Metro Airport ARB → BJC
975 nautical miles (1,122 statute miles) west on a straight line, true course 269°, about 274° magnetic at the departure end (variation 5W). At 120 knots that is 9 h 17 min at the quickest height in today's winds (4,500 ft, a 15-knot headwind), arriving about 4:10 am MDT (10:10 UTC), after sunset at the destination. 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: 1 flights in the DOT's last twelve reported months, the route's page.
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 10 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 129 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 40 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 ARB.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 at 33,000 ft, 6 nm north, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 60 nm along the route, 6 nm north of the line.
as filed, and in English
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
- Report
- a routine report filed through JXN
- Where
- 30 nm west (280°) of JXN
- Time
- 00:36 UTC
- Height
- at 33,000 ft
- Aircraft
- A320
- Turbulence
- occasional moderate at 33,000 ft
- Remarks
- zob
- UAL1340 at 40,000 ft, 6 nm northeast, 8:18 pm EDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 776 nm along the route, 6 nm northeast of the line.
as filed, and in English
ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
- Report
- a routine report filed through ARP
- UAL2199 at 35,000 ft, 5 nm south, 7:31 pm EDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 905 nm along the route, 5 nm south of the line.
as filed, and in English
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
- Report
- a routine report filed through ARP
- A21N at 32,000 ft, 7 nm north, 7:42 pm EDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 915 nm along the route, 7 nm north of the line.
as filed, and in English
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
- Report
- a routine report filed through AKO
- Where
- 30 nm west (270°) of AKO
- Time
- 23:42 UTC
- Height
- at 32,000 ft
- Aircraft
- A21N
- Turbulence
- intermittent moderate chop
- Remarks
- ZDVWC-61
- BCS3 at 24,000 ft, 32 nm northwest, 7:28 pm EDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. At the destination end, 32 nm northwest of the line.
as filed, and in English
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
- Report
- a routine report filed through DEN
- Where
- 45 nm northwest (320°) of DEN
- Time
- 23:28 UTC
- Height
- at 24,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate from 24,000 ft to 22,000 ft
- Remarks
- during the descent
- GLF5 at 45,000 ft, 45 nm south, 6:44 pm EDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. At the destination end, 45 nm south of the line.
as filed, and in English
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 25 nm north (350°) of COS
- Time
- 22:44 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF5
- Turbulence
- moderate
- Remarks
- ZDVWC-46
- C550 at 2,300 ft, 30 nm northeast, 8:46 pm EDT (00:46 UTC): remarks: fis 4 mile final. At the departure end, 30 nm northeast of the line.
as filed, and in English
PTK UA /OV 4W/TM 0046/FL023/TP C550/RM FIS 4 MILE FINAL
- Report
- a routine report filed through PTK
- Where
- 4W
- Time
- 00:46 UTC
- Height
- at 2,300 ft
- Aircraft
- C550
- Remarks
- fis 4 mile final
- A21N descending, 17 nm east, 8:22 pm EDT (00:22 UTC): overcast above 1,500 ft. At the departure end, 17 nm east of the line.
as filed, and in English
DTW UA /OV DTW/TM 0022/FLDURD/TP A21N/SK OVC015
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:22 UTC
- Height
- during the descent
- Aircraft
- A21N
- Sky
- overcast from 1,500 ft
- A320 climbing, 38 nm south, 8:14 pm EDT (00:14 UTC): overcast. At the departure end, 38 nm south of the line.
as filed, and in English
TOL UA /OV TOL/TM 0014/FLDURC/TP A320/SK B025 OVC T040
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 00:14 UTC
- Height
- during the climb
- Aircraft
- A320
- Sky
- B025 overcast T040
- CRJ9 descending, 17 nm east, 8:08 pm EDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. At the departure end, 17 nm east of the line.
as filed, and in English
DTW UA /OV DTW/TM 0008/FLDURD/TP CRJ9/SK OVC 011/RM FINAL RY 4L
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:08 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- overcast from 1,100 ft
- Remarks
- final runway 4L
- GLF5 at 9,000 ft, 30 nm northeast, 7:13 pm EDT (23:13 UTC): overcast from 1,500 ft to 4,000 ft. At the departure end, 30 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 7E/TM 2313/FL090/TP GLF5/SK OVC015-TOP040
- Report
- a routine report filed through PTK
- Where
- ptk 7E
- Time
- 23:13 UTC
- Height
- at 9,000 ft
- Aircraft
- GLF5
- Sky
- overcast from 1,500 ft, tops 4,000 ft
- PA32 at 1,500 ft, 30 nm northeast, 7:03 pm EDT (23:03 UTC): overcast above 1,500 ft. At the departure end, 30 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 1W/TM 2303/FL015/TP PA32/SK OVC015
- Report
- a routine report filed through PTK
- Where
- ptk 1W
- Time
- 23:03 UTC
- Height
- at 1,500 ft
- Aircraft
- PA32
- Sky
- overcast from 1,500 ft
- E75S descending, 17 nm east, 7:01 pm EDT (23:01 UTC): a routine report with nothing remarked on. At the departure end, 17 nm east of the line.
as filed, and in English
DTW UA /OV RWY 3R/TM 2301/FLDURD/TP E75S/SK TOPS 020 BASES 010
- Report
- a routine report filed through DTW
- Where
- runway 3R
- Time
- 23:01 UTC
- Height
- during the descent
- Aircraft
- E75S
- Sky
- tops 2,000 ft bases 1,000 ft
- A320 descending, 38 nm south, 7:00 pm EDT (23:00 UTC): overcast from 1,600 ft to 3,500 ft, wind 350° at 9 knots. At the departure end, 38 nm south of the line.
as filed, and in English
TOL UA /OV TOL/TM 2300/FLDURD/TP A320/SK OVC016 TOP035/WV 35009KTS AT 023
- Report
- a routine report filed through TOL
- Where
- over TOL
- Time
- 23:00 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- overcast from 1,600 ft, tops 3,500 ft
- Wind
- wind from 350° at 9 knots at at 2,300 ft
16 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 9 forecast points nearest it (FWA, MKG, JOT, DBQ, DSM, OMA, GRI, GLD, DEN). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 20 kt | +15 kt | 19 °C | 105 kt | 9 h 17 min | 4:10 am MDT (10:10 UTC) |
| 6,500 ft | 230° at 18 kt | +17 kt | 16 °C | 103 kt | 9 h 28 min | 4:21 am MDT (10:21 UTC) |
| 8,500 ft | 240° at 18 kt | +17 kt | 12 °C | 103 kt | 9 h 28 min | 4:21 am MDT (10:21 UTC) |
| 10,500 ft | 250° at 16 kt | +17 kt | 9 °C | 103 kt | 9 h 28 min | 4:21 am MDT (10:21 UTC) |
| 12,500 ft | 260° at 16 kt | +17 kt | 5 °C | 103 kt | 9 h 28 min | 4:21 am MDT (10:21 UTC) |
| 14,500 ft | 260° at 18 kt | +19 kt | 0 °C | 101 kt | 9 h 39 min | 4:32 am MDT (10:32 UTC) |
| 16,500 ft | 270° at 21 kt | +22 kt | -5 °C | 98 kt | 9 h 57 min | 4:50 am MDT (10:50 UTC) |
| 18,000 ft FL180 | 270° at 23 kt | +23 kt | -8 °C | 97 kt | 10 h 03 min | 4:56 am MDT (10:56 UTC) |
| 24,000 ft FL240 | 270° at 25 kt | +26 kt | -20 °C | 94 kt | 10 h 22 min | 5:15 am MDT (11:15 UTC) |
| 30,000 ft FL300 | 270° at 34 kt | +35 kt | -34 °C | 85 kt | 11 h 28 min | 6:21 am MDT (12:21 UTC) |
| 34,000 ft FL340 | 280° at 43 kt | +43 kt | -42 °C | 77 kt | 12 h 40 min | 7:33 am MDT (13:33 UTC) |
| 39,000 ft FL390 | 280° at 56 kt | +54 kt | -50 °C | 66 kt | 14 h 46 min | 9:39 am MDT (15:39 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| FWA | used from 0 nm out; 84 nm from the line | 350/9 | 350/24 15° | 360/25 9° | 360/29 4° | 350/31 -10° | 340/39 -22° | 330/40 -37° | 320/38 -43° | 320/48 -48° |
| MKG | used from 50 nm out; 69 nm from the line | 250/5 | 320/10 15° | 310/19 9° | 320/21 3° | 310/23 -10° | 330/37 -22° | 330/51 -38° | 320/44 -47° | 300/60 -49° |
| JOT | used from 149 nm out; 42 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| DBQ | used from 249 nm out; 45 nm from the line | 220/23 | 240/22 16° | 240/24 10° | 260/18 5° | 270/16 -8° | 290/27 -19° | 310/42 -35° | 320/55 -44° | 300/71 -52° |
| DSM | used from 398 nm out; 24 nm from the line | 200/32 | 240/27 17° | 260/19 10° | 260/16 5° | 260/19 -7° | 240/22 -19° | 270/20 -32° | 270/38 -42° | 290/58 -53° |
| OMA | used from 497 nm out; 25 nm from the line | 190/34 | 230/34 19° | 250/25 12° | 250/18 6° | 250/22 -7° | 250/28 -19° | 260/34 -32° | 260/39 -41° | 280/56 -51° |
| GRI | used from 597 nm out; 37 nm from the line | 210/31 19° | 240/21 14° | 240/17 6° | 260/27 -7° | 260/34 -18° | 240/45 -32° | 250/56 -40° | 260/62 -51° | |
| GLD | used from 746 nm out; 91 nm from the line | 190/29 | 200/30 15° | 240/23 8° | 250/39 -7° | 230/39 -19° | 230/57 -31° | 240/67 -39° | 250/62 -49° | |
| DEN | used from 895 nm out; 37 nm from the line | 190/31 16° | 210/32 7° | 240/41 -8° | 230/47 -21° | 240/56 -32° | 250/65 -37° | 250/61 -47° |
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
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| ARB Ann Arbor, MI | departure | no report just now | 839 ft | ||||
| AZO Kalamazoo, MI | 80 nm out, 3 nm north of the line, tower | no report just now | 873 ft | ||||
| PWK Chicago/Prospect Heights/Wheeling, IL | 189 nm out, 4 nm east of the line, tower | no report just now | 644 ft | ||||
| DPA Chicago/West Chicago, IL | 199 nm out, 10 nm south of the line, tower | no report just now | 758 ft | ||||
| CID Cedar Rapids, IA | 358 nm out, 4 nm northeast of the line, tower | no report just now | 869 ft | ||||
| DSM Des Moines, IA | 448 nm out, 8 nm southeast of the line, tower | no report just now | 957 ft | ||||
| OMA Omaha, NE | 547 nm out, 7 nm south of the line, tower | no report just now | 984 ft | ||||
| GRI Grand Island, NE | 656 nm out, 8 nm south of the line, tower | no report just now | 1,847 ft | ||||
| CZD Cozad, NE | 736 nm out, 3 nm northeast of the line | no report just now | 2,503 ft | ||||
| IML Imperial, NE | 806 nm out, 6 nm southwest of the line | no report just now | 3,276 ft | ||||
| DEN Denver, CO | 955 nm out, 8 nm south of the line, tower | no report just now | 5,433 ft | ||||
| BJC Denver, CO | destination | no report just now | 5,673 ft |
The highest airport on this list sits at 5,673 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BJC when you get there the forecast at the estimated arrival, 4:10 am MDT (10:10 UTC)
BJC has no terminal forecast; use the nearest airport that does.
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 ARB 6:58 pm EDT (22:58 UTC), at BJC 6:25 pm MDT (00:25 UTC) (civil twilight ends 6:52 pm MDT (00:52 UTC)). At 120 knots the arrival at BJC is before sunrise there (7:07 am MDT (13:07 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







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: Ann Arbor Municipal, Rocky Mountain Metro Airport.
