California Redwood Coast-Humboldt County to Detroit Metro Wayne County ACV → DTW
1,814 nautical miles (2,087 statute miles) east on a straight line, true course 074°, about 057° magnetic at the departure end (variation 17E). At 120 knots that is 11 h at the quickest height in today's winds (39,000 ft, a 45-knot tailwind), arriving about 6:09 pm EDT (22:09 UTC). Right now ACV is VFR, wind from the east (090°) at 3 knots; DTW is VFR, wind from the south (190°) at 6 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: 1 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 W21W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 5:55 am PDT (12:55 UTC). Near the route, 478 nm along the route.
as issued
WSUS33 KKCI 121055 MKCW WST 121055 CONVECTIVE SIGMET 21W VALID UNTIL 1255Z UT ID NV FROM 40ENE TWF-20SSE PIH-40E BVL-20WNW BVL-40ENE TWF AREA TS MOV FROM 24020KT. TOPS TO FL270.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 40 to 289 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 389 to 747 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 419 to 658 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 439 to 1196 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 807 nm along the route.
- 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 817 to 897 nm out.
- 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). Over the route from 1326 to 1425 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 70 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 ACV.
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 08:00–15:00 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 16 forecast points nearest it (FOT, SIY, LKV, BOI, PIH, LND, RAP, PIR, ONL, FSD, MCW, DBQ, JOT, MKG, FWA, CLE). 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 | 260° at 14 kt | −13 kt | 10 °C | 133 kt | 13 h 38 min | 8:47 pm EDT (00:47 UTC) |
| 7,500 ft | 250° at 12 kt | −11 kt | 8 °C | 131 kt | 13 h 51 min | 9:00 pm EDT (01:00 UTC) |
| 9,500 ft | 250° at 13 kt | −11 kt | 4 °C | 131 kt | 13 h 51 min | 9:00 pm EDT (01:00 UTC) |
| 11,500 ft | 250° at 16 kt | −14 kt | 1 °C | 134 kt | 13 h 32 min | 8:41 pm EDT (00:41 UTC) |
| 13,500 ft | 250° at 18 kt | −16 kt | -3 °C | 136 kt | 13 h 20 min | 8:29 pm EDT (00:29 UTC) |
| 15,500 ft | 250° at 19 kt | −17 kt | -7 °C | 137 kt | 13 h 14 min | 8:23 pm EDT (00:23 UTC) |
| 17,500 ft | 250° at 20 kt | −18 kt | -11 °C | 138 kt | 13 h 09 min | 8:18 pm EDT (00:18 UTC) |
| 18,000 ft FL180 | 250° at 20 kt | −18 kt | -12 °C | 138 kt | 13 h 09 min | 8:18 pm EDT (00:18 UTC) |
| 24,000 ft FL240 | 250° at 24 kt | −21 kt | -23 °C | 141 kt | 12 h 52 min | 8:01 pm EDT (00:01 UTC) |
| 30,000 ft FL300 | 260° at 32 kt | −30 kt | -34 °C | 150 kt | 12 h 06 min | 7:15 pm EDT (23:15 UTC) |
| 34,000 ft FL340 | 260° at 39 kt | −38 kt | -38 °C | 158 kt | 11 h 29 min | 6:38 pm EDT (22:38 UTC) |
| 39,000 ft FL390 | 260° at 44 kt | −45 kt | -45 °C | 165 kt | 11 h | 6:09 pm EDT (22:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| FOT | used from 0 nm out; 41 nm from the line | 020/14 | 010/18 4° | 010/27 0° | 360/45 -1° | 350/59 -12° | 350/66 -23° | 350/79 -39° | 350/73 -48° | 330/40 -48° |
| SIY | used from 50 nm out; 28 nm from the line | 060/14 -1° | 030/21 -4° | 010/29 -8° | 360/75 -13° | 350/77 -24° | 350/74 -39° | 340/57 -45° | 300/20 -42° | |
| LKV | used from 149 nm out; 26 nm from the line | 010/10 -8° | 360/20 -11° | 360/58 -19° | 360/92 -25° | 350/69 -37° | 310/34 -37° | 240/26 -41° | ||
| BOI | used from 299 nm out; 87 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° | |
| PIH | used from 448 nm out; 53 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° | |
| LND | used from 598 nm out; 75 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° | ||
| RAP | used from 797 nm out; 129 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° | |
| PIR | used from 997 nm out; 69 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° | |
| ONL | used from 1096 nm out; 63 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| FSD | used from 1146 nm out; 50 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° |
| MCW | used from 1296 nm out; 50 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° |
| DBQ | used from 1445 nm out; 45 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° |
| JOT | used from 1545 nm out; 88 nm from the line | 250/25 | 260/22 14° | 250/17 9° | 270/21 5° | 280/28 -8° | 280/36 -20° | 270/41 -35° | 280/57 -42° | 290/65 -50° |
| MKG | used from 1595 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° |
| FWA | used from 1744 nm out; 91 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° |
| CLE | used from 1794 nm out; 92 nm from the line | 310/7 | 350/20 14° | 340/16 9° | 320/21 2° | 320/32 -8° | 330/34 -20° | 330/45 -36° | 320/60 -45° | 320/64 -51° |
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 |
|---|---|---|---|---|---|---|---|
| ACV Arcata/Eureka, CA | departure | VFR | from the east (090°) at 3 knots | 9 mi | none | 222 ft | 3:53 am PDT (10:53 UTC) |
| AAT Alturas, CA | 159 nm out, 12 nm southeast of the line | VFR | calm | 10+ mi | none | 4,378 ft | 10:55 UTC |
| PIH Pocatello, ID | 528 nm out, 4 nm northwest of the line, tower | marginal VFR Sky: a few clouds at 1,000 feet, a broken layer at 2,500 feet, overcast at 3,100 feet Weather: light rain | from the west-northwest (290°) at 8 knots | 8 mi | 2,500 ft | 4,451 ft | 10:53 UTC |
| RIW Riverton, WY | 708 nm out, 9 nm south of the line | marginal VFR Sky: overcast at 2,000 feet | from the north (010°) at 11 knots | 10+ mi | 2,000 ft | 5,516 ft | 10:53 UTC |
| HSR Hot Springs, SD | 927 nm out, 6 nm southeast of the line | no report just now | 3,150 ft | ||||
| FSD Sioux Falls, SD | 1216 nm out, 10 nm northeast 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 |
| FXY Forest City, IA | 1355 nm out, 4 nm south of the line | VFR | from the south (170°) at 5 knots | 10+ mi | none | 1,229 ft | 10:50 UTC |
| MKE Milwaukee, WI | 1605 nm out, 9 nm northeast of the line, tower | VFR Sky: a few clouds at 18,000 feet, a broken layer at 24,000 feet | from the southwest (230°) at 9 knots | 10+ mi | 24,000 ft | 728 ft | 10:52 UTC |
| ARB Ann Arbor, MI | 1794 nm out, 4 nm southeast of the line, tower | reported, no category | calm | none | 839 ft | 10:53 UTC | |
| DTW Detroit, MI | destination | VFR Sky: a few clouds at 600 feet, scattered clouds at 25,000 feet | from the south (190°) at 6 knots | 8 mi | none | 645 ft | 6:53 am EDT (10:53 UTC) |
The highest airport on this list sits at 5,516 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, 6:09 pm EDT (22:09 UTC)
Wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet VFR
The whole forecast for DTW
- From Mon 4:00 am EDT (08:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, overcast at 1,000 feet
- From Mon 4:30 am EDT (08:30 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 4 miles, mist, a broken layer at 300 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
The forecast for ACV, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 5:00 am PDT (12:00 UTC): wind from the east-northeast at 3 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 pm PDT (19:00 UTC): wind from the north-northwest at 12 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the north at 3 knots, visibility more than 6 miles, clear skies
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 ACV 6:39 pm PDT (01:39 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: California Redwood Coast-Humboldt County, Detroit Metro Wayne County.
