Henderson City-County to Taku Harbor Seaplane Base EHR → A43
2,163 nautical miles (2,489 statute miles) northwest on a straight line, true course 319°, about 320° magnetic at the departure end (variation 1W). At 120 knots that is 17 h 35 min at the quickest height in today's winds (4,500 ft, a 3-knot tailwind), arriving about 11:24 am AKDT (19:24 UTC). 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
- 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 329 to 458 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 578 to 678 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 867 to 877 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Near the route, 977 nm along 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 EHR.
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 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 11 forecast points nearest it (EVV, SPI, BRL, DSM, MCW, FSD, ABR, MOT, GGW, GPI, SEA). 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 | 060° at 3 kt | −3 kt | 0 °C | 123 kt | 17 h 35 min | 11:24 am AKDT (19:24 UTC) |
| 6,500 ft | 010° at 2 kt | −1 kt | 5 °C | 121 kt | 17 h 53 min | 11:42 am AKDT (19:42 UTC) |
| 8,500 ft | 240° at 2 kt | 0 | 2 °C | 120 kt | 18 h 02 min | 11:51 am AKDT (19:51 UTC) |
| 10,500 ft | 250° at 3 kt | 0 | -1 °C | 120 kt | 18 h 02 min | 11:51 am AKDT (19:51 UTC) |
| 12,500 ft | 260° at 4 kt | +1 kt | -4 °C | 119 kt | 18 h 11 min | 12:00 pm AKDT (20:00 UTC) |
| 14,500 ft | 260° at 6 kt | +2 kt | -7 °C | 118 kt | 18 h 20 min | 12:09 pm AKDT (20:09 UTC) |
| 16,500 ft | 260° at 9 kt | +3 kt | -10 °C | 117 kt | 18 h 29 min | 12:18 pm AKDT (20:18 UTC) |
| 18,000 ft FL180 | 260° at 11 kt | +4 kt | -13 °C | 116 kt | 18 h 39 min | 12:28 pm AKDT (20:28 UTC) |
| 24,000 ft FL240 | 270° at 19 kt | +11 kt | -23 °C | 109 kt | 19 h 51 min | 1:40 pm AKDT (21:40 UTC) |
| 30,000 ft FL300 | 270° at 33 kt | +22 kt | -37 °C | 98 kt | 22 h 04 min | 3:53 pm AKDT (23:53 UTC) |
| 34,000 ft FL340 | 270° at 38 kt | +27 kt | -44 °C | 93 kt | 23 h 15 min | 5:04 pm AKDT (01:04 UTC) |
| 39,000 ft FL390 | 270° at 42 kt | +31 kt | -48 °C | 89 kt | 24 h 18 min | 6:07 pm AKDT (02:07 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| EVV | used from 0 nm out; 24 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° |
| SPI | used from 100 nm out; 31 nm from the line | 210/13 | 260/11 17° | 270/18 10° | 290/21 4° | 310/20 -8° | 330/25 -19° | 320/49 -34° | 320/60 -44° | 320/59 -50° |
| BRL | used from 199 nm out; 15 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 299 nm out; 59 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° |
| MCW | used from 349 nm out; 45 nm from the line | 200/35 | 240/33 18° | 250/20 10° | 260/10 6° | 270/18 -8° | 260/28 -19° | 280/30 -34° | 290/49 -43° | 280/70 -54° |
| FSD | used from 498 nm out; 61 nm from the line | 200/16 | 220/20 17° | 240/26 13° | 230/19 6° | 240/25 -9° | 240/28 -20° | 250/39 -33° | 250/44 -43° | 260/63 -52° |
| ABR | used from 598 nm out; 49 nm from the line | 030/24 | 220/5 16° | 230/18 12° | 230/32 5° | 240/38 -10° | 250/37 -20° | 240/40 -35° | 240/56 -44° | 250/72 -52° |
| MOT | used from 747 nm out; 93 nm from the line | 070/8 6° | 180/7 2° | 220/18 -1° | 240/37 -11° | 250/55 -20° | 250/64 -36° | 250/70 -46° | 250/80 -54° | |
| GGW | used from 997 nm out; 111 nm from the line | 090/18 0° | 140/12 -2° | 150/13 -3° | 200/35 -12° | 230/56 -22° | 240/75 -37° | 240/81 -46° | 240/78 -49° | |
| GPI | used from 1296 nm out; 275 nm from the line | 060/19 -3° | 110/11 -8° | 130/6 -8° | 200/40 -19° | 190/58 -28° | 200/101 -39° | 220/73 -43° | 230/41 -43° | |
| SEA | used from 1694 nm out; 494 nm from the line | 360/9 | 350/10 1° | 010/10 -5° | 030/20 -11° | 020/60 -17° | 010/86 -26° | 360/90 -40° | 010/68 -42° | 360/31 -43° |
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 |
|---|---|---|---|---|---|---|---|
| EHR Henderson, KY | departure | no report just now | 386 ft | ||||
| SPI Springfield, IL | 149 nm out, 11 nm northeast of the line, tower | no report just now | 597 ft | ||||
| BRL Burlington, IA | 239 nm out, 1 nm west of the line | no report just now | 698 ft | ||||
| MWM Windom, MN | 498 nm out, 3 nm northeast of the line | no report just now | 1,410 ft | ||||
| BTN Britton, SD | 658 nm out, 9 nm northeast of the line | no report just now | 1,318 ft | ||||
| MOT Minot, ND | 867 nm out, 23 nm northeast of the line, tower | no report just now | 1,715 ft | ||||
| A43 Taku Harbor, AK | destination | no report just now | 0 ft |
The highest airport on this list sits at 1,715 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At A43 when you get there the forecast at the estimated arrival, 11:24 am AKDT (19:24 UTC)
A43 has no terminal forecast; use the nearest airport that does.
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 EHR 6:17 pm CDT (23:17 UTC), at A43 5:59 pm AKDT (01:59 UTC) (civil twilight ends 6:39 pm AKDT (02:39 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: Henderson City-County, Taku Harbor Seaplane Base.