South Bend International to Boise Air Trml/Gowen Field SBN → BOI
1,318 nautical miles (1,517 statute miles) west on a straight line, true course 285°, about 290° magnetic at the departure end (variation 5W). At 120 knots that is 11 h 52 min at the quickest height in today's winds (4,500 ft, a 9-knot headwind), arriving about 11:56 am MDT (17:56 UTC). Right now SBN is marginal VFR, wind calm; BOI is VFR, wind from the west (270°) at 7 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: 11 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 30 nm of the route.
- 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). Over the route from 170 to 400 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 609 to 1249 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 759 to 1009 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). Over the route from 769 to 989 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 819 to 1029 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 869 to 1298 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 899 to 1279 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 140 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 SBN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- LJ45 at 10,000 ft, 46 nm southeast, 12:31 am EDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. At the departure end, 46 nm southeast of the line.
as filed, and in English
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
- Report
- a routine report filed through FWA
- Where
- over OLK
- Time
- 04:31 UTC
- Height
- at 10,000 ft
- Aircraft
- LJ45
- Sky
- clear
- Turbulence
- smooth
- Remarks
- ground fog at fwa FV10SM on final runway 14
- E175 at 6,300 ft, 11 nm south, 12:20 am EDT (04:20 UTC): overcast above 6,300 ft, remarks: during the descent runway 31. 1239 nm along the route, 11 nm south of the line.
as filed, and in English
SUN UA /OV KSUN/TM 0420/FL063/TP E175/SK OVC063-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 04:20 UTC
- Height
- at 6,300 ft
- Aircraft
- E175
- Sky
- overcast from 6,300 ft, tops unknown
- Remarks
- during the descent runway 31
- E175 at 5,900 ft, 11 nm south, 11:29 pm EDT (03:29 UTC): a broken layer above 5,900 ft, remarks: during the descent runway 31. 1239 nm along the route, 11 nm south of the line.
as filed, and in English
SUN UA /OV KSUN/TM 0329/FL059/TP E175/SK BKN059-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 03:29 UTC
- Height
- at 5,900 ft
- Aircraft
- E175
- Sky
- a broken layer from 5,900 ft, tops unknown
- Remarks
- during the descent runway 31
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 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 10 forecast points nearest it (JOT, DBQ, MCW, FSD, ONL, PIR, RAP, LND, PIH, BOI). 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 18 kt | +9 kt | 13 °C | 111 kt | 11 h 52 min | 11:56 am MDT (17:56 UTC) |
| 6,500 ft | 230° at 18 kt | +11 kt | 14 °C | 109 kt | 12 h 06 min | 12:10 pm MDT (18:10 UTC) |
| 8,500 ft | 220° at 19 kt | +11 kt | 11 °C | 109 kt | 12 h 06 min | 12:10 pm MDT (18:10 UTC) |
| 10,500 ft | 220° at 20 kt | +13 kt | 6 °C | 107 kt | 12 h 19 min | 12:23 pm MDT (18:23 UTC) |
| 12,500 ft | 230° at 22 kt | +15 kt | 2 °C | 105 kt | 12 h 33 min | 12:37 pm MDT (18:37 UTC) |
| 14,500 ft | 230° at 24 kt | +17 kt | -2 °C | 103 kt | 12 h 48 min | 12:52 pm MDT (18:52 UTC) |
| 16,500 ft | 230° at 26 kt | +19 kt | -7 °C | 101 kt | 13 h 03 min | 1:07 pm MDT (19:07 UTC) |
| 18,000 ft FL180 | 230° at 27 kt | +21 kt | -10 °C | 99 kt | 13 h 19 min | 1:23 pm MDT (19:23 UTC) |
| 24,000 ft FL240 | 230° at 35 kt | +28 kt | -22 °C | 92 kt | 14 h 20 min | 2:24 pm MDT (20:24 UTC) |
| 30,000 ft FL300 | 240° at 41 kt | +34 kt | -33 °C | 86 kt | 15 h 20 min | 3:24 pm MDT (21:24 UTC) |
| 34,000 ft FL340 | 250° at 50 kt | +46 kt | -40 °C | 74 kt | 17 h 49 min | 5:53 pm MDT (23:53 UTC) |
| 39,000 ft FL390 | 250° at 54 kt | +53 kt | -47 °C | 67 kt | 19 h 40 min | 7:44 pm MDT (01:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JOT | used from 0 nm out; 62 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° |
| DBQ | used from 150 nm out; 26 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| MCW | used from 250 nm out; 50 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° |
| FSD | used from 400 nm out; 52 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° |
| ONL | used from 549 nm out; 63 nm from the line | 210/31 20° | 230/27 13° | 230/18 7° | 220/19 -8° | 240/26 -20° | 250/44 -35° | 270/52 -39° | 260/57 -47° | |
| PIR | used from 599 nm out; 49 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° | |
| RAP | used from 699 nm out; 31 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° | |
| LND | used from 899 nm out; 93 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| PIH | used from 1099 nm out; 64 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| BOI | used from 1249 nm out; 45 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° |
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 |
|---|---|---|---|---|---|---|---|
| SBN South Bend, IN | departure | marginal VFR Weather: mist | calm | 3 mi | none | 798 ft | 1:54 am EDT (05:54 UTC) |
| RFD Chicago/Rockford, IL | 130 nm out, 3 nm southeast of the line, tower | VFR Sky: a broken layer at 25,000 feet | calm | 10+ mi | 25,000 ft | 742 ft | 05:54 UTC |
| DBQ Dubuque, IA | 200 nm out, 5 nm south of the line, tower | VFR | from the south-southwest (200°) at 9 knots | 10+ mi | none | 1,076 ft | 05:53 UTC |
| ALO Waterloo, IA | 280 nm out, 12 nm south of the line, tower | VFR | from the south (180°) at 8 knots | 10+ mi | none | 873 ft | 05:54 UTC |
| FSD Sioux Falls, SD | 469 nm out, 19 nm north of the line, tower | VFR | from the north-northeast (020°) at 7 knots | 10+ mi | none | 1,430 ft | 05:56 UTC |
| ICR Winner, SD | 609 nm out, 10 nm south of the line | low IFR Sky: overcast at 400 feet Weather: mist | from the northeast (050°) at 7 knots | 6 mi | 400 ft | 2,032 ft | 05:53 UTC |
| RAP Rapid City, SD | 749 nm out, 19 nm north of the line, tower | low IFR Sky: overcast at 300 feet Weather: nearby thunderstorms, mist | from the west-northwest (300°) at 5 knots | 4 mi | 300 ft | 3,203 ft | 05:59 UTC |
| ECS Newcastle, WY | 799 nm out, 7 nm north of the line | VFR Sky: scattered clouds at 11,000 feet | from the east (100°) at 19 knots, gusting to 26 | 10+ mi | none | 4,177 ft | 05:55 UTC |
| WRL Worland, WY | 959 nm out, 7 nm north of the line | low IFR Sky: overcast at 400 feet Weather: light snow, mist | from the north (360°) at 7 knots | 2 mi | 400 ft | 4,251 ft | 05:53 UTC |
| JAC Jackson, WY | 1079 nm out, 13 nm south of the line, tower | VFR Sky: overcast at 5,500 feet | from the southwest (230°) at 5 knots | 10+ mi | 5,500 ft | 6,451 ft | 05:56 UTC |
| SUN Hailey, ID | 1239 nm out, 11 nm south of the line, tower | IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet | from the southeast (140°) at 5 knots | 10+ mi | 600 ft | 5,319 ft | 05:55 UTC |
| BOI Boise, ID | destination | VFR Sky: overcast at 9,000 feet | from the west (270°) at 7 knots | 10+ mi | 9,000 ft | 2,871 ft | 11:53 pm MDT (05:53 UTC) |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOI when you get there the forecast at the estimated arrival, 11:56 am MDT (17:56 UTC)
Wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet VFR
The whole forecast for BOI
- From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 8,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet
The forecast for SBN, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- At times between Mon 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 2 miles, mist
- From Mon 6:00 am EDT (10:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the south-southwest at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 10,000 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 SBN 7:09 pm EDT (23:09 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 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
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: South Bend International, Boise Air Trml/Gowen Field.