Valley International to Willow Run Airport HRL → YIP
1,186 nautical miles (1,365 statute miles) northeast on a straight line, true course 032°, about 029° magnetic at the departure end (variation 3E). At 120 knots that is 9 h 34 min at the quickest height in today's winds (3,500 ft, a 4-knot tailwind), arriving about 6:35 am EDT (10:35 UTC), after sunset at the destination. Right now HRL is VFR, wind from the east (100°) at 7 knots; YIP is marginal VFR, wind from the west-northwest (300°) 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: 34 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
- 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 30 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 HRL.
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 12 forecast points nearest it (BRO, CRP, PSX, HOU, LCH, SHV, LIT, MEM, CGI, EVV, IND, 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 |
|---|---|---|---|---|---|---|
| 3,500 ft | 220° at 4 kt | −4 kt | 124 kt | 9 h 34 min | 6:35 am EDT (10:35 UTC) | |
| 5,500 ft | 290° at 4 kt | −1 kt | 121 kt | 9 h 48 min | 6:49 am EDT (10:49 UTC) | |
| 7,500 ft | 290° at 7 kt | −2 kt | 14 °C | 122 kt | 9 h 43 min | 6:44 am EDT (10:44 UTC) |
| 9,500 ft | 290° at 9 kt | −3 kt | 10 °C | 123 kt | 9 h 39 min | 6:40 am EDT (10:40 UTC) |
| 11,500 ft | 310° at 12 kt | 0 | 7 °C | 120 kt | 9 h 53 min | 6:54 am EDT (10:54 UTC) |
| 13,500 ft | 310° at 14 kt | +1 kt | 3 °C | 119 kt | 9 h 58 min | 6:59 am EDT (10:59 UTC) |
| 15,500 ft | 320° at 16 kt | +2 kt | -1 °C | 118 kt | 10 h 03 min | 7:04 am EDT (11:04 UTC) |
| 17,500 ft | 320° at 17 kt | +3 kt | -5 °C | 117 kt | 10 h 08 min | 7:09 am EDT (11:09 UTC) |
| 18,000 ft FL180 | 320° at 17 kt | +4 kt | -6 °C | 116 kt | 10 h 13 min | 7:14 am EDT (11:14 UTC) |
| 24,000 ft FL240 | 320° at 23 kt | +6 kt | -17 °C | 114 kt | 10 h 24 min | 7:25 am EDT (11:25 UTC) |
| 30,000 ft FL300 | 320° at 36 kt | +10 kt | -32 °C | 110 kt | 10 h 47 min | 7:48 am EDT (11:48 UTC) |
| 34,000 ft FL340 | 320° at 38 kt | +8 kt | -41 °C | 112 kt | 10 h 35 min | 7:36 am EDT (11:36 UTC) |
| 39,000 ft FL390 | 320° at 36 kt | +7 kt | -50 °C | 113 kt | 10 h 30 min | 7:31 am EDT (11:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BRO | used from 0 nm out; 40 nm from the line | 130/16 | 160/16 17° | 160/14 13° | 150/12 8° | L/V -3° | 250/13 -14° | 130/15 -29° | 100/18 -39° | L/V -50° |
| CRP | used from 50 nm out; 44 nm from the line | 130/19 | 140/20 18° | 160/17 13° | 180/10 7° | 230/9 -3° | 230/11 -13° | 310/6 -29° | 310/5 -39° | 310/13 -52° |
| PSX | used from 100 nm out; 46 nm from the line | 140/20 | 140/23 18° | 160/17 13° | 240/5 8° | 250/9 -4° | 250/11 -13° | 310/15 -29° | 310/17 -40° | 290/11 -52° |
| HOU | used from 199 nm out; 17 nm from the line | 160/18 | 160/14 17° | 180/19 12° | 190/11 8° | 260/12 -4° | 260/14 -13° | 310/26 -30° | 310/30 -40° | 320/21 -52° |
| LCH | used from 299 nm out; 67 nm from the line | 190/6 | 180/8 18° | 170/13 12° | 220/12 7° | 290/10 -4° | 280/15 -14° | 320/30 -31° | 320/32 -40° | 320/39 -53° |
| SHV | used from 349 nm out; 61 nm from the line | 190/11 | 230/19 17° | 230/26 12° | 260/15 7° | 280/16 -4° | 300/17 -15° | 300/34 -30° | 300/31 -41° | 310/42 -52° |
| LIT | used from 498 nm out; 75 nm from the line | 220/12 | 250/12 17° | 250/18 12° | 260/22 6° | 310/14 -5° | 310/25 -17° | 310/40 -31° | 310/38 -41° | 310/46 -52° |
| MEM | used from 598 nm out; 48 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| CGI | used from 698 nm out; 63 nm from the line | 250/10 | 290/12 17° | 290/18 11° | 300/22 5° | 320/25 -8° | 330/30 -18° | 320/53 -33° | 320/66 -42° | 320/56 -50° |
| EVV | used from 798 nm out; 55 nm from the line | 310/13 | 340/26 16° | 330/29 10° | 330/32 4° | 330/30 -9° | 340/38 -20° | 330/60 -35° | 320/57 -41° | 330/39 -48° |
| IND | used from 947 nm out; 18 nm from the line | 320/10 | 350/30 16° | 350/32 10° | 350/30 4° | 340/31 -10° | 340/42 -21° | 340/49 -37° | 320/46 -41° | 320/47 -47° |
| FWA | used from 1047 nm out; 12 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° |
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 |
|---|---|---|---|---|---|---|---|
| HRL Harlingen, TX | departure | VFR | from the east (100°) at 7 knots | 10+ mi | none | 36 ft | 7:52 pm CDT (00:52 UTC) |
| SGR Houston, TX | 229 nm out, 21 nm northwest of the line, tower | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 81 ft | 01:53 UTC |
| EFD Houston, TX | 239 nm out, 3 nm northeast of the line, tower | VFR | from the east-southeast (110°) at 8 knots | 10+ mi | none | 32 ft | 00:54 UTC |
| RSN Ruston, LA | 459 nm out, 13 nm southeast of the line | VFR | calm | 10+ mi | none | 316 ft | 23:35 UTC |
| LLQ Monticello, AR | 538 nm out, 9 nm east of the line | VFR | from the south (190°) at 3 knots | 10+ mi | none | 267 ft | 00:53 UTC |
| NQA Millington, TN | 678 nm out, 23 nm southeast of the line, tower | VFR | calm | 10+ mi | none | 322 ft | 23:50 UTC |
| PAH Paducah, KY | 788 nm out, 7 nm east of the line, tower | VFR | calm | 10+ mi | none | 410 ft | 00:00 UTC |
| EVV Evansville, IN | 877 nm out, 16 nm southeast of the line, tower | VFR | from the south-southwest (210°) at 7 knots | 10+ mi | none | 421 ft | 00:54 UTC |
| IND Indianapolis, IN | 987 nm out, 3 nm northeast of the line, tower | VFR | calm | 10+ mi | none | 796 ft | 00:54 UTC |
| FWA Fort Wayne, IN | 1077 nm out, 10 nm northwest of the line, tower | VFR Sky: a few clouds at 1,800 feet, a few clouds at 25,000 feet | calm | 10+ mi | none | 814 ft | 00:54 UTC |
| YIP Detroit, MI | destination | 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) |
The highest airport on this list sits at 814 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, 6:35 am EDT (10:35 UTC)
Wind from the south-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet VFR
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 low IFR
The whole forecast for YIP
- 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
The forecast for HRL, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the east at 13 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Sun 8:00 pm CDT (01:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 4,500 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 HRL 7:05 pm CDT (00:05 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







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: Valley International, Willow Run Airport.
