Scammon Bay Airport to Kwethluk Airport SCM → KWT
135 nautical miles (155 statute miles) southeast on a straight line, true course 116°, about 108° magnetic at the departure end (variation 8E). At 120 knots that is 49 min at the quickest height in today's winds (30,000 ft, a 45-knot tailwind), arriving about 11:04 pm AKDT (07:04 UTC), after sunset at the destination. Right now SCM is marginal VFR, wind from the south (190°) at 7 knots; KWT is VFR, wind from the south (180°) at 10 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
No SIGMET or AIRMET covers any part of this route right now.
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 SCM.
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 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 2 forecast points nearest it (CZF, BET). 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 | 210° at 22 kt | 0 | 120 kt | 1 h 08 min | 11:23 pm AKDT (07:23 UTC) | |
| 5,500 ft | 210° at 22 kt | −1 kt | 121 kt | 1 h 07 min | 11:22 pm AKDT (07:22 UTC) | |
| 7,500 ft | 210° at 22 kt | −2 kt | -10 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 9,500 ft | 210° at 22 kt | −2 kt | -14 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 11,500 ft | 210° at 23 kt | −2 kt | -20 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 13,500 ft | 210° at 23 kt | −2 kt | -24 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 15,500 ft | 210° at 24 kt | −2 kt | -28 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 17,500 ft | 210° at 24 kt | −2 kt | -32 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 18,000 ft FL180 | 210° at 25 kt | −2 kt | -33 °C | 122 kt | 1 h 06 min | 11:21 pm AKDT (07:21 UTC) |
| 24,000 ft FL240 | 250° at 27 kt | −19 kt | -38 °C | 139 kt | 58 min | 11:13 pm AKDT (07:13 UTC) |
| 30,000 ft FL300 | 270° at 50 kt | −45 kt | -47 °C | 165 kt | 49 min | 11:04 pm AKDT (07:04 UTC) |
| 34,000 ft FL340 | 270° at 48 kt | −41 kt | -53 °C | 161 kt | 50 min | 11:05 pm AKDT (07:05 UTC) |
| 39,000 ft FL390 | 250° at 34 kt | −21 kt | -51 °C | 141 kt | 57 min | 11:12 pm AKDT (07:12 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CZF | used from 0 nm out; 35 nm from the line | 200/24 | 210/23 -7° | 220/21 -14° | 220/19 -21° | 220/17 -32° | 260/28 -39° | 260/58 -48° | 260/51 -53° | 240/32 -50° |
| BET | used from 48 nm out; 53 nm from the line | 210/22 | 210/21 -7° | 210/23 -13° | 210/25 -21° | 210/29 -33° | 250/26 -37° | 280/47 -47° | 270/47 -53° | 250/35 -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 |
|---|---|---|---|---|---|---|---|
| SCM Scammon Bay, AK | departure | marginal VFR Sky: scattered clouds at 1,600 feet, a broken layer at 2,100 feet, a broken layer at 2,700 feet Weather: light rain | from the south (190°) at 7 knots | 8 mi | 2,100 ft | 22 ft | 10:11 pm AKDT (06:11 UTC) |
| 16A Nunapitchuk, AK | 106 nm out, 8 nm southwest of the line | VFR | from the south (170°) at 12 knots | 10+ mi | none | 21 ft | 05:56 UTC |
| KWT Kwethluk, AK | destination | VFR Sky: a few clouds at 1,800 feet, scattered clouds at 3,500 feet, overcast at 4,700 feet | from the south (180°) at 10 knots | 10+ mi | 4,700 ft | 25 ft | 9:56 pm AKDT (05:56 UTC) |
The highest airport on this list sits at 25 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At KWT when you get there the forecast at the estimated arrival, 11:04 pm AKDT (07:04 UTC)
KWT 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 SCM 7:57 pm AKDT (03:57 UTC), at KWT 7:43 pm AKDT (03:43 UTC) (civil twilight ends 8:26 pm AKDT (04:26 UTC)). At 120 knots the arrival at KWT is after sunset there (7:46 pm AKDT (03:46 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: Scammon Bay Airport, Kwethluk Airport.