Boise Air Trml/Gowen Field to Detroit Metro Wayne County BOI → DTW
1,439 nautical miles (1,656 statute miles) east on a straight line, true course 082°, about 069° magnetic at the departure end (variation 13E). At 120 knots that is 8 h 16 min at the quickest height in today's winds (39,000 ft, a 54-knot tailwind), arriving about 11:02 am EDT (15:02 UTC). 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 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
- SIGMET C11C: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 1:55 am MDT (07:55 UTC). Over the route from 530 to 599 nm out.
as issued
WSUS32 KKCI 120555 MKCC WST 120555 CONVECTIVE SIGMET 11C VALID UNTIL 0755Z SD WY FROM 60WNW DPR-20SSE DPR-40SSW RAP-60W RAP-60WNW DPR DMSHG AREA TS MOV FROM 22040KT. TOPS TO FL310.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 140 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 20 to 460 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 410 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 60 to 839 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 300 to 500 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 320 to 540 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 340 to 560 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). Over the route from 979 to 1159 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). Over the last 130 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 BOI.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 11 forecast points nearest it (BOI, PIH, LND, RAP, PIR, FSD, MCW, LSE, DBQ, MKG, FWA). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 230° at 15 kt | −11 kt | 11 °C | 131 kt | 10 h 59 min | 1:45 pm EDT (17:45 UTC) |
| 7,500 ft | 230° at 16 kt | −11 kt | 11 °C | 131 kt | 10 h 59 min | 1:45 pm EDT (17:45 UTC) |
| 9,500 ft | 220° at 16 kt | −11 kt | 8 °C | 131 kt | 10 h 59 min | 1:45 pm EDT (17:45 UTC) |
| 11,500 ft | 230° at 19 kt | −13 kt | 4 °C | 133 kt | 10 h 49 min | 1:35 pm EDT (17:35 UTC) |
| 13,500 ft | 230° at 21 kt | −16 kt | -1 °C | 136 kt | 10 h 35 min | 1:21 pm EDT (17:21 UTC) |
| 15,500 ft | 230° at 23 kt | −19 kt | -5 °C | 139 kt | 10 h 21 min | 1:07 pm EDT (17:07 UTC) |
| 17,500 ft | 240° at 25 kt | −22 kt | -10 °C | 142 kt | 10 h 08 min | 12:54 pm EDT (16:54 UTC) |
| 18,000 ft FL180 | 240° at 26 kt | −23 kt | -11 °C | 143 kt | 10 h 04 min | 12:50 pm EDT (16:50 UTC) |
| 24,000 ft FL240 | 240° at 33 kt | −30 kt | -22 °C | 150 kt | 9 h 36 min | 12:22 pm EDT (16:22 UTC) |
| 30,000 ft FL300 | 240° at 39 kt | −36 kt | -33 °C | 156 kt | 9 h 13 min | 11:59 am EDT (15:59 UTC) |
| 34,000 ft FL340 | 250° at 46 kt | −47 kt | -40 °C | 167 kt | 8 h 37 min | 11:23 am EDT (15:23 UTC) |
| 39,000 ft FL390 | 260° at 53 kt | −54 kt | -48 °C | 174 kt | 8 h 16 min | 11:02 am EDT (15:02 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOI | used from 0 nm out; 25 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° | |
| PIH | used from 100 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° | |
| LND | used from 250 nm out; 90 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° | ||
| RAP | used from 450 nm out; 96 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 649 nm out; 22 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 749 nm out; 74 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 899 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° |
| LSE | used from 1049 nm out; 28 nm from the line | 230/40 | 240/24 17° | 240/13 10° | 250/13 6° | 280/22 -9° | 250/28 -21° | 250/41 -34° | 260/42 -44° | 270/62 -53° |
| DBQ | used from 1149 nm out; 80 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° |
| MKG | used from 1199 nm out; 82 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| FWA | used from 1399 nm out; 101 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -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 |
|---|---|---|---|---|---|---|---|
| BOI Boise, ID | departure | no report just now | 2,871 ft | ||||
| SUN Hailey, ID | 80 nm out, 15 nm south of the line, tower | no report just now | 5,319 ft | ||||
| IDA Idaho Falls, ID | 180 nm out, 24 nm south of the line, tower | no report just now | 4,743 ft | ||||
| WRL Worland, WY | 360 nm out, 10 nm south of the line | no report just now | 4,251 ft | ||||
| RAP Rapid City, SD | 570 nm out, 8 nm south of the line, tower | no report just now | 3,203 ft | ||||
| PHP Philip, SD | 629 nm out, 7 nm southeast of the line | no report just now | 2,209 ft | ||||
| FSD Sioux Falls, SD | 849 nm out, 21 nm south of the line, tower | no report just now | 1,430 ft | ||||
| AEL Albert Lea, MN | 989 nm out, 2 nm northeast of the line | no report just now | 1,261 ft | ||||
| RST Rochester, MN | 1029 nm out, 21 nm north of the line, tower | no report just now | 1,317 ft | ||||
| UES Waukesha, WI | 1219 nm out, 2 nm northwest of the line, tower | no report just now | 911 ft | ||||
| ARB Ann Arbor, MI | 1419 nm out, 5 nm southeast of the line, tower | no report just now | 839 ft | ||||
| DTW Detroit, MI | destination | no report just now | 645 ft |
The highest airport on this list sits at 5,319 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DTW when you get there the forecast at the estimated arrival, 11:02 am EDT (15:02 UTC)
DTW 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 BOI 7:05 pm MDT (01:05 UTC), at DTW 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:24 pm EDT (23:24 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: Boise Air Trml/Gowen Field, Detroit Metro Wayne County.
