Bozeman Yellowstone International to Indianapolis International BZN → IND
1,149 nautical miles (1,322 statute miles) east on a straight line, true course 100°, about 087° magnetic at the departure end (variation 13E). At 120 knots that is 6 h 41 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 10:40 am EDT (14:40 UTC). Right now BZN is marginal VFR, wind from the southwest (230°) at 4 knots; IND is IFR, wind from the south (190°) at 3 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: 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 12:00 am MDT (06:00 UTC). Over the first 500 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 12:00 am MDT (06:00 UTC). Over the first 80 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft, from 12:00 am MDT (06:00 UTC). Near the route, at the departure end.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 12:00 am MDT (06:00 UTC). Over the first 140 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 12:00 am MDT (06:00 UTC). Over the route from 90 to 240 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 12:00 am MDT (06:00 UTC). Over the route from 140 to 260 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground), from 12:00 am MDT (06:00 UTC). Over the route from 180 to 340 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft, from 12:00 am MDT (06:00 UTC). Over the route from 180 to 290 nm out.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground), from 12:00 am MDT (06:00 UTC). Over the route from 680 to 919 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 12:00 am MDT (06:00 UTC). 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 BZN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E73L descending, 0 nm northwest, 12:20 am MDT (06:20 UTC): remarks: breaking action good broke out about 600FT above ground. At the departure end, 0 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN/TM 0620/FLDURD/TP E73L/RM BREAKING ACTION GOOD. BROKE OUT ABOUT 600FT AGL
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 06:20 UTC
- Height
- during the descent
- Aircraft
- E73L
- Remarks
- breaking action good broke out about 600FT above ground
- B737 , 0 nm northwest, 11:31 pm MDT (05:31 UTC): remarks: saw the light at 500FT braking good no icing. At the departure end, 0 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN/TM 0531/FLBURD/TP B737/RM SAW THE LIGHT AT 500FT. BRAKING GOOD. NEG ICING
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 05:31 UTC
- Height
- at BURD
- Aircraft
- B737
- Remarks
- saw the light at 500FT braking good no icing
- B739 at 35,000 ft, 32 nm northeast, 1:05 am MDT (07:05 UTC): no turbulence. 1039 nm along the route, 32 nm northeast of the line.
as filed, and in English
TIP UA /OV RBS010023/TM 0705/FL350/TP B739/TB NEG
- Report
- a routine report filed through TIP
- Where
- 23 nm north (010°) of RBS
- Time
- 07:05 UTC
- Height
- at 35,000 ft
- Aircraft
- B739
- Turbulence
- none
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 UTC · at 120 knots true airspeed
The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 10 forecast points nearest it (BIL, MLS, RAP, PIR, FSD, MCW, DSM, BRL, JOT, IND). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 240° at 22 kt | −12 kt | 132 kt | 8 h 42 min | 12:41 pm EDT (16:41 UTC) | |
| 5,500 ft | 220° at 14 kt | −4 kt | 14 °C | 124 kt | 9 h 16 min | 1:15 pm EDT (17:15 UTC) |
| 7,500 ft | 220° at 15 kt | −6 kt | 13 °C | 126 kt | 9 h 07 min | 1:06 pm EDT (17:06 UTC) |
| 9,500 ft | 220° at 17 kt | −8 kt | 8 °C | 128 kt | 8 h 59 min | 12:58 pm EDT (16:58 UTC) |
| 11,500 ft | 220° at 22 kt | −11 kt | 5 °C | 131 kt | 8 h 46 min | 12:45 pm EDT (16:45 UTC) |
| 13,500 ft | 230° at 24 kt | −13 kt | 1 °C | 133 kt | 8 h 38 min | 12:37 pm EDT (16:37 UTC) |
| 15,500 ft | 230° at 25 kt | −16 kt | -3 °C | 136 kt | 8 h 27 min | 12:26 pm EDT (16:26 UTC) |
| 17,500 ft | 240° at 26 kt | −19 kt | -8 °C | 139 kt | 8 h 16 min | 12:15 pm EDT (16:15 UTC) |
| 18,000 ft FL180 | 240° at 27 kt | −19 kt | -9 °C | 139 kt | 8 h 16 min | 12:15 pm EDT (16:15 UTC) |
| 24,000 ft FL240 | 250° at 30 kt | −23 kt | -20 °C | 143 kt | 8 h 02 min | 12:01 pm EDT (16:01 UTC) |
| 30,000 ft FL300 | 240° at 35 kt | −27 kt | -35 °C | 147 kt | 7 h 49 min | 11:48 am EDT (15:48 UTC) |
| 34,000 ft FL340 | 260° at 50 kt | −45 kt | -41 °C | 165 kt | 6 h 58 min | 10:57 am EDT (14:57 UTC) |
| 39,000 ft FL390 | 260° at 55 kt | −52 kt | -48 °C | 172 kt | 6 h 41 min | 10:40 am EDT (14:40 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 85 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| MLS | used from 200 nm out; 84 nm from the line | 150/23 2° | 190/29 4° | 210/44 2° | 220/32 -10° | 210/36 -21° | 200/48 -37° | 230/63 -40° | 240/71 -47° | |
| RAP | used from 250 nm out; 88 nm from the line | 180/23 12° | 200/38 13° | 210/38 6° | 220/28 -10° | 230/34 -21° | 230/37 -36° | 250/52 -38° | 250/59 -46° | |
| PIR | used from 400 nm out; 50 nm from the line | 170/22 19° | 190/25 13° | 210/32 6° | 240/23 -9° | 250/32 -21° | 250/38 -36° | 260/44 -40° | 260/52 -47° | |
| FSD | used from 550 nm out; 60 nm from the line | 190/9 | 230/30 18° | 240/23 13° | 240/20 6° | 260/22 -9° | 250/31 -21° | 250/43 -36° | 260/49 -43° | 270/53 -47° |
| MCW | used from 700 nm out; 77 nm from the line | 220/44 | 250/30 17° | 230/14 12° | 240/17 6° | 250/22 -8° | 270/29 -20° | 250/34 -34° | 260/52 -43° | 260/59 -51° |
| DSM | used from 749 nm out; 45 nm from the line | 230/40 | 250/33 17° | 250/18 12° | 240/17 5° | 260/28 -8° | 270/34 -19° | 260/41 -33° | 260/55 -41° | 270/62 -51° |
| BRL | used from 849 nm out; 59 nm from the line | 230/24 | 240/29 15° | 290/16 10° | 280/15 4° | 260/23 -7° | 260/32 -19° | 260/36 -33° | 280/48 -41° | 280/59 -52° |
| JOT | used from 999 nm out; 60 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -52° |
| IND | used from 1049 nm out; 75 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
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 |
|---|---|---|---|---|---|---|---|
| BZN Bozeman, MT | departure | marginal VFR Sky: a few clouds at 500 feet, a broken layer at 3,700 feet, overcast at 5,000 feet Weather: light snow, mist | from the southwest (230°) at 4 knots | 5 mi | 3,700 ft | 4,473 ft | 12:56 am MDT (06:56 UTC) |
| BIL Billings, MT | 110 nm out, 22 nm north of the line, tower | marginal VFR Sky: overcast at 1,300 feet Weather: light rain, light snow, mist | from the north-northwest (330°) at 9 knots | 5 mi | 1,300 ft | 3,662 ft | 07:53 UTC |
| EFC Belle Fourche, SD | 310 nm out, 6 nm northeast of the line | no report just now | 3,190 ft | ||||
| PHP Philip, SD | 420 nm out, 10 nm south of the line | IFR Sky: a broken layer at 700 feet, overcast at 1,000 feet Weather: light rain, mist | from the north-northeast (020°) at 11 knots, gusting to 17 | 3 mi | 700 ft | 2,209 ft | 07:55 UTC |
| MHE Mitchell, SD | 570 nm out, 21 nm north of the line | IFR Sky: overcast at 500 feet | from the north (360°) at 10 knots | 9 mi | 500 ft | 1,304 ft | 07:53 UTC |
| SXK Maurice, IA | 660 nm out, 5 nm east of the line | VFR | from the southeast (140°) at 4 knots | 10+ mi | none | 1,408 ft | 07:55 UTC |
| SLB Storm Lake, IA | 710 nm out, 4 nm south of the line | VFR | from the south (180°) at 6 knots | 10+ mi | none | 1,487 ft | 07:55 UTC |
| CID Cedar Rapids, IA | 869 nm out, 15 nm northeast of the line, tower | VFR | from the south (180°) at 6 knots | 10+ mi | none | 869 ft | 02:52 UTC |
| BMI Bloomington/Normal, IL | 1019 nm out, 11 nm south of the line, tower | VFR | from the south-southwest (200°) at 7 knots | 10+ mi | none | 871 ft | 07:56 UTC |
| CMI Champaign/Urbana, IL | 1059 nm out, 23 nm southwest of the line, tower | VFR | from the south (180°) at 6 knots | 10+ mi | none | 754 ft | 07:53 UTC |
| IND Indianapolis, IN | destination | IFR Sky: scattered clouds at 400 feet Weather: mist | from the south (190°) at 3 knots | 1.25 mi | none | 796 ft | 3:54 am EDT (07:54 UTC) |
The highest airport on this list sits at 4,473 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At IND when you get there the forecast at the estimated arrival, 10:40 am EDT (14:40 UTC)
Wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 20,000 feet VFR
The whole forecast for IND
- From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
- At times between Mon 2:00 am EDT (06:00 UTC) and 6:00 am EDT (10:00 UTC): visibility 1 mile, mist, shallow fog, overcast at 200 feet
- From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility 6 miles, mist, shallow fog, a few clouds at 200 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
The forecast for BZN, the departure
- From Mon 1:00 am MDT (07:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet
- At times between Mon 1:00 am MDT (07:00 UTC) and 5:00 am MDT (11:00 UTC): overcast at 600 feet
- From Mon 10:00 am MDT (16:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 1,000 feet
- From Mon 2:00 pm MDT (20:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, a broken layer at 1,500 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet, a broken layer at 2,000 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 BZN 6:42 pm MDT (00:42 UTC), at IND 7:10 pm EDT (23:10 UTC) (civil twilight ends 7:37 pm EDT (23:37 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: Bozeman Yellowstone International, Indianapolis International.