Plan a flight · Sun 9:48 pm EDT (01:48 UTC)

Willow Run Airport to Brown Field Municipal YIP → SDM

1,685 nautical miles (1,939 statute miles) west on a straight line, true course 261°, about 267° magnetic at the departure end (variation 6W). At 120 knots that is 16 h 22 min at the quickest height in today's winds (4,500 ft, a 17-knot headwind), arriving about 11:10 am PDT (18:10 UTC). Right now YIP is marginal VFR, wind from the west-northwest (300°) at 3 knots; SDM is marginal VFR, wind from the southwest (230°) 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: 5 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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1007 to 1246 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 1W
VALID UNTIL 0255Z
CO NM WY AZ UT
FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE
AREA SEV TS MOV FROM 23040KT. TOPS TO FL340.
WIND GUSTS TO 60KT POSS.

SIGMET 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1336 to 1465 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 4W
VALID UNTIL 0255Z
AZ
FROM 60NE TBC-30S INW-100ESE BZA-70SE EED-50NW TBC-60NE TBC
DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.

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 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 449 to 927 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 937 to 1415 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 977 to 1136 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1037 to 1226 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 1087 to 1116 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1316 to 1475 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1366 to 1445 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Near the route, 1465 nm along the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1565 to 1665 nm out.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1665 to 1665 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 YIP.

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

A320 at 33,000 ft, 15 nm north, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 70 nm along the route, 15 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
SR22 at 1,300 ft, 25 nm north, 9:25 pm EDT (01:25 UTC): a routine report with nothing remarked on. At the departure end, 25 nm north of the line.
as filed, and in English
```
PTK UA /OV PTK270003/TM 0125/FL013/TP SR22/SK BASES 019 OVC
```
Report
a routine report filed through PTK
Where
3 nm west (270°) of PTK
Time
01:25 UTC
Height
at 1,300 ft
Aircraft
SR22
Sky
bases 1,900 ft overcast
CRJ7 descending, 8 nm east, 9:01 pm EDT (01:01 UTC): overcast above 2,800 ft. At the departure end, 8 nm east of the line.
as filed, and in English
```
DTW UA /OV FINAL 3R /TM 0101/FLDURD/TP CRJ7/SK OVC 028
```
Report
a routine report filed through DTW
Where
final 3R
Time
01:01 UTC
Height
during the descent
Aircraft
CRJ7
Sky
overcast from 2,800 ft
C550 at 2,300 ft, 26 nm north, 8:46 pm EDT (00:46 UTC): remarks: fis 4 mile final. At the departure end, 26 nm north 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, 8 nm east, 8:22 pm EDT (00:22 UTC): overcast above 1,500 ft. At the departure end, 8 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
CRJ9 descending, 8 nm east, 8:08 pm EDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. At the departure end, 8 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, 26 nm north, 7:13 pm EDT (23:13 UTC): overcast from 1,500 ft to 4,000 ft. At the departure end, 26 nm north 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, 26 nm north, 7:03 pm EDT (23:03 UTC): overcast above 1,500 ft. At the departure end, 26 nm north 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, 8 nm east, 7:01 pm EDT (23:01 UTC): a routine report with nothing remarked on. At the departure end, 8 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
E55P descending, 0 nm northwest, 7:00 pm EDT (23:00 UTC): a routine report with nothing remarked on. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
YIP UA /OV KYIP/TM 2300/FLDURD/TP E55P/SK B015
```
Report
a routine report filed through YIP
Where
over KYIP
Time
23:00 UTC
Height
during the descent
Aircraft
E55P
Sky
B015
P28A descending, 50 nm south, 8:08 pm EDT (00:08 UTC): a broken layer from 2,200 ft to 2,500 ft. At the departure end, 50 nm south of the line.
as filed, and in English
```
TOL UA /OV 1G0/TM 0008/FLDURD/TP P28A/SK BKN022 TOPS025
```
Report
a routine report filed through TOL
Where
over 1G0
Time
00:08 UTC
Height
during the descent
Aircraft
P28A
Sky
a broken layer from 2,200 ft, tops 2,500 ft
C525 descending, 36 nm south, 9:41 pm EDT (01:41 UTC): a routine report with nothing remarked on. At the departure end, 36 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 0141/FLDURD/TP C525/SK TOPS035 BKN010/WX 2SM
```
Report
a routine report filed through TOL
Where
over TOL
Time
01:41 UTC
Height
during the descent
Aircraft
C525
Sky
TOPS035 BKN010
Weather
2SM
A320 climbing, 36 nm south, 8:14 pm EDT (00:14 UTC): overcast. At the departure end, 36 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
A320 descending, 36 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, 36 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 15 forecast points nearest it (FWA, JOT, BRL, DSM, MKC, OMA, SLN, GCK, GLD, PUB, ALS, FMN, PRC, BLH, SAN). 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 19 kt	+17 kt	21 °C	103 kt	16 h 22 min	11:10 am PDT (18:10 UTC)
6,500 ft	240° at 19 kt	+19 kt	15 °C	101 kt	16 h 41 min	11:29 am PDT (18:29 UTC)
8,500 ft	230° at 20 kt	+20 kt	11 °C	100 kt	16 h 51 min	11:39 am PDT (18:39 UTC)
10,500 ft	230° at 20 kt	+21 kt	7 °C	99 kt	17 h 01 min	11:49 am PDT (18:49 UTC)
12,500 ft	240° at 21 kt	+22 kt	3 °C	98 kt	17 h 12 min	12:00 pm PDT (19:00 UTC)
14,500 ft	240° at 24 kt	+25 kt	-1 °C	95 kt	17 h 44 min	12:32 pm PDT (19:32 UTC)
16,500 ft	240° at 27 kt	+28 kt	-5 °C	92 kt	18 h 19 min	1:07 pm PDT (20:07 UTC)
18,000 ft FL180	240° at 29 kt	+30 kt	-8 °C	90 kt	18 h 43 min	1:31 pm PDT (20:31 UTC)
24,000 ft FL240	240° at 34 kt	+36 kt	-19 °C	84 kt	20 h 04 min	2:52 pm PDT (21:52 UTC)
30,000 ft FL300	250° at 45 kt	+47 kt	-31 °C	73 kt	23 h 05 min	5:53 pm PDT (00:53 UTC)
34,000 ft FL340	250° at 49 kt	+52 kt	-39 °C	68 kt	24 h 47 min	7:35 pm PDT (02:35 UTC)
39,000 ft FL390	260° at 47 kt	+49 kt	-48 °C	71 kt	23 h 44 min	6:32 pm PDT (01:32 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; 87 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°
JOT	used from 150 nm out; 38 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°
BRL	used from 299 nm out; 33 nm from the line	200/20	250/21 16°	240/22 10°	260/20 5°	270/16 -7°	290/22 -18°	320/41 -34°	320/56 -43°	310/68 -53°
DSM	used from 399 nm out; 63 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°
MKC	used from 498 nm out; 72 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
OMA	used from 548 nm out; 75 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°
SLN	used from 598 nm out; 70 nm from the line	190/37	220/39 20°	240/31 14°	250/24 7°	260/25 -7°	250/26 -17°	250/44 -31°	260/47 -40°	260/47 -50°
GCK	used from 748 nm out; 74 nm from the line		200/35 21°	220/34 14°	240/30 8°	240/27 -6°	240/31 -17°	240/53 -30°	250/55 -39°	250/60 -50°
GLD	used from 847 nm out; 58 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°
PUB	used from 897 nm out; 74 nm from the line			210/24 16°	210/28 8°	230/43 -8°	240/42 -21°	240/77 -30°	240/72 -36°	250/51 -47°
ALS	used from 997 nm out; 47 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
FMN	used from 1146 nm out; 28 nm from the line			220/25 13°	220/28 4°	210/51 -9°	220/59 -21°	230/78 -30°	230/77 -36°	230/66 -46°
PRC	used from 1296 nm out; 104 nm from the line			200/36 6°	210/46 0°	220/60 -10°	220/75 -19°	220/66 -26°	230/70 -33°	230/59 -45°
BLH	used from 1495 nm out; 34 nm from the line	230/22	210/24 11°	230/23 5°	230/26 0°	220/38 -10°	230/52 -19°	220/58 -28°	220/69 -34°	220/59 -45°
SAN	used from 1645 nm out; 28 nm from the line	200/10	240/19 9°	240/27 5°	230/22 -1°	220/40 -10°	220/49 -19°	220/54 -29°	220/61 -35°	220/56 -44°

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
YIP Detroit, MI	departure	marginal VFR Sky: overcast at 2,200 feet	from the west-northwest (300°) at 3 knots	10+ mi	2,200 ft	715 ft	8:53 pm EDT (00:53 UTC)
JXN Jackson, MI	40 nm out, 8 nm north of the line, tower	IFR Sky: overcast at 900 feet	from the west (260°) at 3 knots	10+ mi	900 ft	1,000 ft	00:56 UTC
LOT Chicago/Romeoville, IL	209 nm out, 2 nm east of the line, tower	VFR	from the southeast (140°) at 5 knots	10+ mi	none	679 ft	01:30 UTC
TVK Centerville, IA	429 nm out, 4 nm southwest of the line	VFR	calm	10+ mi	none	1,023 ft	01:35 UTC
MYZ Marysville, KS	608 nm out, 2 nm southwest of the line	VFR	from the south-southeast (160°) at 7 knots	10+ mi	none	1,283 ft	01:35 UTC
RCP Stockton, KS	738 nm out, 9 nm north of the line	no report just now				1,999 ft
LHX La Junta, CO	947 nm out, 6 nm northwest of the line	VFR	from the southwest (230°) at 6 knots	10+ mi	none	4,228 ft	15:53 UTC
ALS Alamosa, CO	1067 nm out, 15 nm north of the line	VFR Sky: a few clouds at 5,000 feet, scattered clouds at 8,500 feet, scattered clouds at 11,000 feet	from the south-southwest (200°) at 15 knots	10+ mi	none	7,539 ft	00:52 UTC
FMN Farmington, NM	1186 nm out, 23 nm northwest of the line, tower	VFR	from the west (270°) at 9 knots	10+ mi	none	5,506 ft	00:53 UTC
PRC Prescott, AZ	1425 nm out, 1 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 2,600 feet, a broken layer at 5,000 feet, overcast at 7,000 feet Weather: light rain, mist	from the south-southwest (210°) at 11 knots	5 mi	5,000 ft	5,045 ft	01:00 UTC
RNM Ramona, CA	1665 nm out, 23 nm northwest of the line, tower	marginal VFR Sky: a few clouds at 1,700 feet, scattered clouds at 2,300 feet, overcast at 3,900 feet Weather: rain, mist	from the south (180°) at 10 knots	5 mi	3,900 ft	1,394 ft	01:44 UTC
SDM San Diego, CA	destination	marginal VFR Sky: a broken layer at 2,600 feet, a broken layer at 3,400 feet	from the southwest (230°) at 3 knots	10+ mi	2,600 ft	526 ft	5:53 pm PDT (00:53 UTC)

The highest airport on this list sits at 7,539 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SDM when you get there the forecast at the estimated arrival, 11:10 am PDT (18:10 UTC)

SDM has no terminal forecast; use the nearest airport that does.

The forecast for YIP, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 4 knots, visibility more than 6 miles, a broken layer at 1,000 feet, overcast at 1,500 feet
From Sun 11:00 pm EDT (03:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,400 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, a broken layer at 400 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 11 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local on the route, at the destination end · security · until 13 July · ZLA
6/2652 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 19 nm from the route, at the destination end · security · until 2 January · ZLA

Daylight

Sunset at YIP 6:57 pm EDT (22:57 UTC), at SDM 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:43 pm PDT (01:43 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 southern Plains · 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: Willow Run Airport, Brown Field Municipal.