Houston County to Kalskag Airport CHU → KLG
2,585 nautical miles (2,974 statute miles) northwest on a straight line, true course 319°, about 318° magnetic at the departure end (variation 1E). At 120 knots that is 20 h 02 min at the quickest height in today's winds (4,500 ft, a 9-knot tailwind), arriving about 2:45 pm AKDT (22:45 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: 15 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 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 259 to 439 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 CHU.
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 02:00–09:00 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 8 forecast points nearest it (LSE, MSP, AXN, GFK, 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 | 080° at 9 kt | −9 kt | -1 °C | 129 kt | 20 h 02 min | 2:45 pm AKDT (22:45 UTC) |
| 6,500 ft | 080° at 8 kt | −9 kt | 2 °C | 129 kt | 20 h 02 min | 2:45 pm AKDT (22:45 UTC) |
| 8,500 ft | 100° at 6 kt | −8 kt | -1 °C | 128 kt | 20 h 12 min | 2:55 pm AKDT (22:55 UTC) |
| 10,500 ft | 060° at 4 kt | −7 kt | -3 °C | 127 kt | 20 h 21 min | 3:04 pm AKDT (23:04 UTC) |
| 12,500 ft | 010° at 7 kt | −5 kt | -5 °C | 125 kt | 20 h 41 min | 3:24 pm AKDT (23:24 UTC) |
| 14,500 ft | 350° at 11 kt | −2 kt | -8 °C | 122 kt | 21 h 11 min | 3:54 pm AKDT (23:54 UTC) |
| 16,500 ft | 340° at 17 kt | +1 kt | -11 °C | 119 kt | 21 h 43 min | 4:26 pm AKDT (00:26 UTC) |
| 18,000 ft FL180 | 340° at 21 kt | +4 kt | -14 °C | 116 kt | 22 h 17 min | 5:00 pm AKDT (01:00 UTC) |
| 24,000 ft FL240 | 330° at 18 kt | +2 kt | -24 °C | 118 kt | 21 h 54 min | 4:37 pm AKDT (00:37 UTC) |
| 30,000 ft FL300 | 310° at 23 kt | +8 kt | -39 °C | 112 kt | 23 h 05 min | 5:48 pm AKDT (01:48 UTC) |
| 34,000 ft FL340 | 300° at 24 kt | +11 kt | -45 °C | 109 kt | 23 h 43 min | 6:26 pm AKDT (02:26 UTC) |
| 39,000 ft FL390 | 260° at 34 kt | +20 kt | -46 °C | 100 kt | 25 h 51 min | 8:34 pm AKDT (04:34 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LSE | used from 0 nm out; 27 nm from the line | 230/40 | 240/24 17° | 240/13 10° | 250/13 6° | 280/22 -9° | 250/28 -21° | 250/41 -34° | 260/42 -44° | 270/62 -53° |
| MSP | used from 50 nm out; 32 nm from the line | 230/26 | 240/30 17° | 240/24 12° | 250/22 5° | 250/35 -10° | 260/36 -21° | 250/41 -36° | 250/49 -45° | 260/58 -52° |
| AXN | used from 150 nm out; 49 nm from the line | 100/14 | 250/21 14° | 240/24 12° | 240/31 5° | 260/36 -10° | 260/40 -21° | 250/42 -36° | 260/48 -45° | 260/53 -50° |
| GFK | used from 299 nm out; 29 nm from the line | 070/18 | 100/10 9° | 250/11 6° | 250/27 1° | 250/34 -10° | 260/43 -21° | 260/39 -36° | 260/36 -46° | 260/59 -53° |
| MOT | used from 449 nm out; 99 nm from the line | 120/14 5° | 200/20 4° | 230/33 1° | 250/39 -11° | 250/50 -21° | 240/61 -37° | 250/56 -45° | 260/68 -51° | |
| GGW | used from 699 nm out; 250 nm from the line | 110/23 0° | 130/20 -2° | 170/24 -3° | 230/44 -11° | 220/51 -21° | 210/52 -39° | 220/64 -44° | 240/85 -48° | |
| GPI | used from 998 nm out; 426 nm from the line | 070/19 -5° | 100/16 -7° | 080/10 -8° | 130/8 -19° | 170/37 -28° | 200/50 -40° | 210/43 -40° | 220/41 -42° | |
| SEA | used from 1447 nm out; 682 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -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 |
|---|---|---|---|---|---|---|---|
| CHU Caledonia, MN | departure | no report just now | 1,179 ft | ||||
| MIC Minneapolis, MN | 120 nm out, 2 nm south of the line, tower | no report just now | 869 ft | ||||
| GFK Grand Forks, ND | 349 nm out, 4 nm north of the line, tower | no report just now | 845 ft | ||||
| CYQH Watson Lake, | 1666 nm out, 6 nm north of the line | no report just now | 2,225 ft | ||||
| CYXY Whitehorse, | 1856 nm out, 13 nm south of the line, tower | no report just now | 2,317 ft | ||||
| SMU Sheep Mountain, AK | 2215 nm out, 4 nm west of the line | no report just now | 2,750 ft | ||||
| SLQ Sleetmute, AK | 2495 nm out, 2 nm southeast of the line | no report just now | 191 ft | ||||
| KLG Kalskag, AK | destination | no report just now | 63 ft |
The highest airport on this list sits at 2,750 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At KLG when you get there the forecast at the estimated arrival, 2:45 pm AKDT (22:45 UTC)
KLG has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 5 nm from the route, 130 nm along the route · security · until 19 October · ZMP
- 6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local on the route, 369 nm along the route · security · until 1 November · ZMP
- 6/8889 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local 7 nm from the route, 2285 nm along the route · a VIP movement · starts tomorrow · ZAN
Daylight
Sunset at CHU 6:28 pm CDT (23:28 UTC), at KLG 7:37 pm AKDT (03:37 UTC) (civil twilight ends 8:21 pm AKDT (04:21 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: Houston County, Kalskag Airport.