Plan a flight · Mon 7:29 am EDT (11:29 UTC)

Detroit Metro Wayne County to Boise Air Trml/Gowen Field DTW → BOI

1,439 nautical miles (1,656 statute miles) west on a straight line, true course 284°, about 291° magnetic at the departure end (variation 7W). At 120 knots that is 13 h 35 min at the quickest height in today's winds (6,500 ft, a 14-knot headwind), arriving about 7:04 pm MDT (01:04 UTC). Right now DTW is IFR, wind from the south-southwest (200°) at 8 knots; BOI is VFR, wind from the west-northwest (290°) at 4 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 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 C17C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 8:55 am EDT (12:55 UTC). Near the route, 759 nm along the route.
as issued
```
WSUS32 KKCI 121055
MKCC WST 121055
CONVECTIVE SIGMET 17C
VALID UNTIL 1255Z
SD ND
FROM 20NW BIS-60E BIS-20WNW PIR-20SW DPR-20NW BIS
AREA TS MOV FROM 22040KT. TOPS TO FL360.
```
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.
AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 400 nm along the route.
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 570 to 1399 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). Near the route, 949 nm along the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1029 to 1399 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1029 to 1379 nm out.

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 DTW.

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

B739 at 9,000 ft, 26 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, 26 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
B350 at 2,000 ft, 28 nm northeast, 7:22 am EDT (11:22 UTC): a routine report with nothing remarked on. At the departure end, 28 nm northeast of the line.
as filed, and in English
```
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
```
Report
a routine report filed through PTK
Where
5 nm east (090°) of PTK
Time
11:22 UTC
Height
at 2,000 ft
Aircraft
B350
Weather
flight visibility 10 miles
MD83 at 2,500 ft, 41 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. At the departure end, 41 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
CL35 at 6,000 ft, 24 nm northeast, 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, 24 nm northeast 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 34,000 ft, 6 nm northwest, 6:58 am EDT (10:58 UTC): no turbulence. 220 nm along the route, 6 nm northwest of the line.
as filed, and in English
```
UES UA /OV BAE/TM 1058/FL340/TP B739/TB NEG
```
Report
a routine report filed through UES
Where
over BAE
Time
10:58 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none

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 12 forecast points nearest it (FWA, MKG, GRB, DBQ, LSE, MCW, FSD, 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	250° at 17 kt	+15 kt	13 °C	105 kt	13 h 42 min	7:11 pm MDT (01:11 UTC)
6,500 ft	250° at 17 kt	+14 kt	15 °C	106 kt	13 h 35 min	7:04 pm MDT (01:04 UTC)
8,500 ft	240° at 17 kt	+14 kt	10 °C	106 kt	13 h 35 min	7:04 pm MDT (01:04 UTC)
10,500 ft	240° at 21 kt	+17 kt	5 °C	103 kt	13 h 58 min	7:27 pm MDT (01:27 UTC)
12,500 ft	230° at 24 kt	+20 kt	1 °C	100 kt	14 h 23 min	7:52 pm MDT (01:52 UTC)
14,500 ft	230° at 26 kt	+21 kt	-3 °C	99 kt	14 h 32 min	8:01 pm MDT (02:01 UTC)
16,500 ft	230° at 28 kt	+22 kt	-8 °C	98 kt	14 h 41 min	8:10 pm MDT (02:10 UTC)
18,000 ft FL180	230° at 30 kt	+23 kt	-11 °C	97 kt	14 h 50 min	8:19 pm MDT (02:19 UTC)
24,000 ft FL240	230° at 35 kt	+27 kt	-23 °C	93 kt	15 h 28 min	8:57 pm MDT (02:57 UTC)
30,000 ft FL300	240° at 42 kt	+36 kt	-34 °C	84 kt	17 h 08 min	10:37 pm MDT (04:37 UTC)
34,000 ft FL340	250° at 45 kt	+42 kt	-38 °C	78 kt	18 h 27 min	11:56 pm MDT (05:56 UTC)
39,000 ft FL390	260° at 50 kt	+49 kt	-46 °C	71 kt	20 h 16 min	1:45 am MDT (07:45 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

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; 99 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -52°
MKG	used from 50 nm out; 67 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
GRB	used from 200 nm out; 87 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
DBQ	used from 250 nm out; 74 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
LSE	used from 300 nm out; 44 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°
MCW	used from 400 nm out; 34 nm from the line	250/36	250/24 19°	240/26 11°	250/30 5°	270/22 -9°	260/30 -21°	260/31 -36°	280/53 -38°	280/66 -48°
FSD	used from 500 nm out; 72 nm from the line	210/20	230/23 21°	220/25 14°	230/30 5°	230/26 -9°	240/30 -21°	270/33 -36°	260/47 -37°	270/58 -47°
PIR	used from 649 nm out; 77 nm from the line		230/15 15°	220/22 14°	220/24 6°	200/32 -10°	210/48 -22°	240/45 -33°	240/43 -37°	250/55 -46°
RAP	used from 799 nm out; 45 nm from the line		250/28 16°	260/31 10°	240/25 4°	210/35 -10°	200/45 -23°	230/47 -31°	230/47 -36°	230/51 -46°
LND	used from 999 nm out; 120 nm from the line			240/10 3°	240/30 0°	220/42 -13°	230/52 -23°	220/54 -33°	220/52 -36°	220/53 -44°
PIH	used from 1199 nm out; 85 nm from the line		070/8	150/19 1°	180/32 -4°	210/44 -17°	210/37 -28°	210/74 -31°	220/68 -35°	220/60 -43°
BOI	used from 1349 nm out; 65 nm from the line		320/11 1°	280/8 -5°	220/14 -11°	200/60 -19°	190/66 -31°	210/46 -32°	220/50 -33°	220/43 -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
DTW Detroit, MI	departure	IFR Sky: a broken layer at 600 feet, a broken layer at 25,000 feet Weather: mist	from the south-southwest (200°) at 8 knots	6 mi	600 ft	645 ft	7:24 am EDT (11:24 UTC)
ARB Ann Arbor, MI	20 nm out, 5 nm southeast of the line, tower	reported, no category	calm		none	839 ft	10:53 UTC
UES Waukesha, WI	220 nm out, 2 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 8 knots	10+ mi	none	911 ft	10:45 UTC
RST Rochester, MN	410 nm out, 21 nm north of the line, tower	VFR	from the south (180°) at 10 knots	9 mi	none	1,317 ft	10:54 UTC
AEL Albert Lea, MN	450 nm out, 2 nm northeast of the line	VFR	from the south (180°) at 6 knots	10+ mi	none	1,261 ft	11:15 UTC
FSD Sioux Falls, SD	590 nm out, 21 nm south of the line, tower	VFR Sky: a few clouds at 10,000 feet, a few clouds at 25,000 feet	from the north-northeast (030°) at 3 knots	10+ mi	none	1,430 ft	10:56 UTC
PHP Philip, SD	809 nm out, 7 nm southeast of the line	marginal VFR Sky: scattered clouds at 600 feet, overcast at 1,500 feet	from the east-northeast (070°) at 8 knots	10+ mi	1,500 ft	2,209 ft	11:23 UTC
RAP Rapid City, SD	869 nm out, 8 nm south of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: fog	from the east-southeast (120°) at 7 knots	0.25 mi	200 ft	3,203 ft	10:52 UTC
WRL Worland, WY	1079 nm out, 10 nm south of the line	VFR Sky: scattered clouds at 1,400 feet, a broken layer at 3,100 feet, overcast at 3,900 feet	from the north (360°) at 4 knots	10+ mi	3,100 ft	4,251 ft	10:53 UTC
IDA Idaho Falls, ID	1259 nm out, 24 nm south of the line, tower	VFR Sky: scattered clouds at 2,900 feet, scattered clouds at 3,700 feet, overcast at 5,500 feet	from the north-northeast (030°) at 8 knots	10+ mi	5,500 ft	4,743 ft	10:53 UTC
SUN Hailey, ID	1359 nm out, 15 nm south of the line, tower	marginal VFR Sky: scattered clouds at 600 feet, a broken layer at 2,700 feet, overcast at 3,100 feet Weather: light rain	from the south-southeast (160°) at 4 knots	10+ mi	2,700 ft	5,319 ft	11:15 UTC
BOI Boise, ID	destination	VFR Sky: scattered clouds at 9,000 feet	from the west-northwest (290°) at 4 knots	10+ mi	none	2,871 ft	4:53 am MDT (10:53 UTC)

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 BOI when you get there the forecast at the estimated arrival, 7:04 pm MDT (01:04 UTC)

Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for BOI

From Mon 6:00 am MDT (12:00 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 DTW, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 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
From Tue 1:00 am EDT (05:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 11,000 feet
30% chance between Tue 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 6 miles, light rain showers, a broken layer at 5,000 feet
From Tue 9:00 am EDT (13:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 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 DTW 6:56 pm EDT (22:56 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

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

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: Detroit Metro Wayne County, Boise Air Trml/Gowen Field.