The U.S. aircraft register, updated daily
Plan a flight · Sun 6:43 pm PDT (01:43 UTC)

Brown Field Municipal to Willow Run Airport SDM → YIP

1,685 nautical miles (1,939 statute miles) northeast on a straight line, true course 060°, about 046° magnetic at the departure end (variation 14E). At 120 knots that is 9 h 51 min at the quickest height in today's winds (34,000 ft, a 51-knot tailwind), arriving about 7:34 am EDT (11:34 UTC), after sunset at the destination. 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 return flight

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 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 7:55 pm PDT (02:55 UTC). Over the route from 219 to 349 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.
  • SIGMET 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 7:55 pm PDT (02:55 UTC). Over the route from 439 to 678 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.
  • AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 20 to 120 nm out.
  • AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 20 to 20 nm out.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 209 to 369 nm out.
  • AIRMET ZULU 3C: moderate icing up to 22,000 ft. Near the route, 219 nm along the route.
  • 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 239 to 319 nm out.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 269 to 748 nm out.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 459 to 648 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 548 to 708 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 568 to 598 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 758 to 1236 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 10 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 SDM.

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 20:00–03:00 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 15 forecast points nearest it (SAN, BLH, PRC, FMN, ALS, PUB, GLD, GCK, SLN, OMA, MKC, DSM, BRL, JOT, FWA). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
3,500 ft210° at 18 kt−14 kt134 kt12 h 34 min10:17 am EDT (14:17 UTC)
5,500 ft230° at 19 kt−18 kt21 °C138 kt12 h 13 min9:56 am EDT (13:56 UTC)
7,500 ft230° at 21 kt−20 kt12 °C140 kt12 h 02 min9:45 am EDT (13:45 UTC)
9,500 ft230° at 20 kt−21 kt10 °C141 kt11 h 57 min9:40 am EDT (13:40 UTC)
11,500 ft240° at 21 kt−21 kt5 °C141 kt11 h 57 min9:40 am EDT (13:40 UTC)
13,500 ft240° at 23 kt−24 kt1 °C144 kt11 h 42 min9:25 am EDT (13:25 UTC)
15,500 ft240° at 26 kt−27 kt-3 °C147 kt11 h 28 min9:11 am EDT (13:11 UTC)
17,500 ft240° at 29 kt−30 kt-7 °C150 kt11 h 14 min8:57 am EDT (12:57 UTC)
18,000 ft FL180240° at 29 kt−30 kt-8 °C150 kt11 h 14 min8:57 am EDT (12:57 UTC)
24,000 ft FL240240° at 34 kt−36 kt-19 °C156 kt10 h 48 min8:31 am EDT (12:31 UTC)
30,000 ft FL300250° at 45 kt−47 kt-31 °C167 kt10 h 05 min7:48 am EDT (11:48 UTC)
34,000 ft FL340250° at 49 kt−51 kt-39 °C171 kt9 h 51 min7:34 am EDT (11:34 UTC)
39,000 ft FL390260° at 47 kt−49 kt-48 °C169 kt9 h 58 min7:41 am EDT (11:41 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
SANused from 0 nm out; 32 nm from the line200/10240/19 9°240/27 5°230/22 -1°220/40 -10°220/49 -19°220/54 -29°220/61 -35°220/56 -44°
BLHused from 50 nm out; 55 nm from the line230/22210/24 11°230/23 5°230/26 0°220/38 -10°230/52 -19°220/58 -28°220/69 -34°220/59 -45°
PRCused from 199 nm out; 36 nm from the line200/36 6°210/46 0°220/60 -10°220/75 -19°220/66 -26°230/70 -33°230/59 -45°
FMNused from 399 nm out; 78 nm from the line220/25 13°220/28 4°210/51 -9°220/59 -21°230/78 -30°230/77 -36°230/66 -46°
ALSused from 548 nm out; 48 nm from the line210/32 5°230/48 -8°230/49 -20°230/78 -30°240/74 -36°240/61 -47°
PUBused from 648 nm out; 45 nm from the line210/24 16°210/28 8°230/43 -8°240/42 -21°240/77 -30°240/72 -36°250/51 -47°
GLDused from 797 nm out; 53 nm from the line190/29200/30 15°240/23 8°250/39 -7°230/39 -19°230/57 -31°240/67 -39°250/62 -49°
GCKused from 847 nm out; 51 nm from the line200/35 21°220/34 14°240/30 8°240/27 -6°240/31 -17°240/53 -30°250/55 -39°250/60 -50°
SLNused from 947 nm out; 61 nm from the line190/37220/39 20°240/31 14°250/24 7°260/25 -7°250/26 -17°250/44 -31°260/47 -40°260/47 -50°
OMAused from 1097 nm out; 72 nm from the line190/34230/34 19°250/25 12°250/18 6°250/22 -7°250/28 -19°260/34 -32°260/39 -41°280/56 -51°
MKCused from 1146 nm out; 74 nm from the line200/28220/30 16°270/20 11°280/22 7°260/27 -6°270/27 -18°280/38 -32°270/38 -40°280/50 -52°
DSMused from 1196 nm out; 58 nm from the line200/32240/27 17°260/19 10°260/16 5°260/19 -7°240/22 -19°270/20 -32°270/38 -42°290/58 -53°
BRLused from 1246 nm out; 64 nm from the line200/20250/21 16°240/22 10°260/20 5°270/16 -7°290/22 -18°320/41 -34°320/56 -43°310/68 -53°
JOTused from 1396 nm out; 52 nm from the line230/11290/12 16°300/19 10°320/19 4°300/17 -9°330/31 -20°320/49 -37°320/53 -45°320/67 -49°
FWAused from 1545 nm out; 68 nm from the line350/9350/24 15°360/25 9°360/29 4°350/31 -10°340/39 -22°330/40 -37°320/38 -43°320/48 -48°

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

AirportWhereConditionsWindVisibilityCeilingElevationReported
SDM San Diego, CA departure no report just now 526 ft
RNM Ramona, CA 20 nm out, 23 nm northwest of the line, tower no report just now 1,394 ft
PRC Prescott, AZ 259 nm out, 1 nm northeast of the line, tower no report just now 5,045 ft
FMN Farmington, NM 498 nm out, 23 nm northwest of the line, tower no report just now 5,506 ft
ALS Alamosa, CO 618 nm out, 15 nm north of the line no report just now 7,539 ft
LHX La Junta, CO 738 nm out, 6 nm northwest of the line no report just now 4,228 ft
RCP Stockton, KS 947 nm out, 9 nm north of the line no report just now 1,999 ft
MYZ Marysville, KS 1077 nm out, 2 nm southwest of the line no report just now 1,283 ft
TVK Centerville, IA 1256 nm out, 4 nm southwest of the line no report just now 1,023 ft
LOT Chicago/Romeoville, IL 1475 nm out, 2 nm east of the line, tower no report just now 679 ft
JXN Jackson, MI 1645 nm out, 8 nm north of the line, tower no report just now 1,000 ft
YIP Detroit, MI destination no report just now 715 ft

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 YIP when you get there the forecast at the estimated arrival, 7:34 am EDT (11:34 UTC)

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

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

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

Daylight

Sunset at SDM 6:18 pm PDT (01:18 UTC), at YIP 6:57 pm EDT (22:57 UTC) (civil twilight ends 7:25 pm EDT (23:25 UTC)). At 120 knots the arrival at YIP is before sunrise there (7:43 am EDT (11:43 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 Pacific Southwest
Radar now, the Pacific Southwest · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar now, the southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
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: Brown Field Municipal, Willow Run Airport.