Napaskiak Airport to Grayling Airport PKA → KGX
140 nautical miles (161 statute miles) north on a straight line, true course 020°, about 005° magnetic at the departure end (variation 15E). At 120 knots that is 1 h 01 min at the quickest height in today's winds (39,000 ft, a 18-knot tailwind), arriving about 3:01 am AKDT (11:01 UTC), after sunset at the destination. 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.
Turbulence No turbulence warning in force along the route. No pilot has reported turbulence near the line in the last three hours. The government's turbulence forecast map ↗
Icing No icing warning in force along the route. No pilot has reported icing near the line in the last three hours. The freezing level is below 7,500 ft, the lowest forecast height, so any cloud could carry ice. The government's icing forecast map ↗
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 PKA.
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 2 forecast points nearest it (BET, UNK). 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 | 200° at 12 kt | −12 kt | 132 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) | |
| 5,500 ft | 200° at 12 kt | −12 kt | 132 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) | |
| 7,500 ft | 200° at 12 kt | −12 kt | -12 °C | 132 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) |
| 9,500 ft | 190° at 13 kt | −12 kt | -16 °C | 132 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) |
| 11,500 ft | 180° at 12 kt | −12 kt | -21 °C | 132 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) |
| 13,500 ft | 180° at 12 kt | −11 kt | -25 °C | 131 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) |
| 15,500 ft | 180° at 12 kt | −11 kt | -29 °C | 131 kt | 1 h 04 min | 3:04 am AKDT (11:04 UTC) |
| 17,500 ft | 180° at 11 kt | −10 kt | -33 °C | 130 kt | 1 h 05 min | 3:05 am AKDT (11:05 UTC) |
| 18,000 ft FL180 | 170° at 11 kt | −10 kt | -34 °C | 130 kt | 1 h 05 min | 3:05 am AKDT (11:05 UTC) |
| 24,000 ft FL240 | 150° at 9 kt | −5 kt | -41 °C | 125 kt | 1 h 07 min | 3:07 am AKDT (11:07 UTC) |
| 30,000 ft FL300 | 120° at 20 kt | −4 kt | -52 °C | 124 kt | 1 h 08 min | 3:08 am AKDT (11:08 UTC) |
| 34,000 ft FL340 | 140° at 16 kt | −9 kt | -54 °C | 129 kt | 1 h 05 min | 3:05 am AKDT (11:05 UTC) |
| 39,000 ft FL390 | 200° at 18 kt | −18 kt | -51 °C | 138 kt | 1 h 01 min | 3:01 am AKDT (11:01 UTC) |
Based on data from the 13th at 06:00 UTC; valid on the 13th 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BET | used from 0 nm out; 20 nm from the line | 210/15 | 220/14 -8° | 200/14 -15° | 200/13 -22° | 190/11 -34° | 150/8 -42° | 110/23 -52° | 130/16 -53° | 200/18 -49° |
| UNK | used from 93 nm out; 82 nm from the line | 150/8 | 160/11 -8° | 160/13 -15° | 150/13 -22° | 150/14 -34° | 140/10 -38° | 150/18 -51° | 170/18 -57° | 200/17 -55° |
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 |
|---|---|---|---|---|---|---|---|
| PKA Napaskiak, AK | departure | no report just now | 11 ft | ||||
| Z13 Akiachak, AK | 19 nm out, 5 nm southeast of the line | no report just now | 22 ft | ||||
| RSH Russian Mission, AK | 65 nm out, 9 nm west of the line | no report just now | 58 ft | ||||
| ANV Anvik, AK | 121 nm out, 4 nm northeast of the line | no report just now | 297 ft | ||||
| KGX Grayling, AK | destination | no report just now | 137 ft |
The highest airport on this list sits at 297 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
The codes as issued, and in English, for every airport in the table
At KGX when you get there the forecast at the estimated arrival, 3:01 am AKDT (11:01 UTC)
KGX 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.
Notices to air missions closures and things out of service at both ends; airspace, navigation aids and obstructions near the line
PKA: 2 notices in force. all of them, grouped →
KGX: 3 notices in force. all of them, grouped →
3 notices near the line (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):
- Obstruction tower lights (ASR 1244797) 60°46′N 161°53′W (1.4 nautical miles west BET) 383.2FT (224.1FT above ground level) out of service until Wed 14 Oct, 7:11 am AKDT (15:11 UTC) · 0 nm along the route, 5 nm off the line · BET 09/179
as issued
!BET 09/179 BET OBST TOWER LGT (ASR 1244797) 604652.70N1615304.60W (1.4NM W BET) 383.2FT (224.1FT AGL) U/S 2609291511-2610141511
- Navigation aid ILS runway 19R LOC/GP not monitor until Sat 30 Jan, 6:00 am AKST (15:00 UTC), estimated · 0 nm along the route, 5 nm off the line · BET 10/001
as issued
!BET 10/001 BET NAV ILS RWY 19R LOC/GP NOT MNT 2610010514-2701301500EST
- Airspace unmanned aircraft (drones) within an area defined as 2 nautical miles radius 60°47′N 161°45′W (2.71 nautical miles ENE BET) the surface-100 ft above ground level TEL 907-217-6707 until Thu 31 Dec, 11:59 pm AKST (08:59 UTC) · 0 nm along the route, 5 nm off the line · BET 09/180
as issued
!BET 09/180 BET AIRSPACE UAS WI AN AREA DEFINED AS 2NM RADIUS 604733N1614503W (2.71NM ENE BET) SFC-100FT AGL TEL 907-217-6707 2609291900-2701010859
From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked 2 minutes ago. The FAA has so far issued eFlight its test feed, which misses some notices (checked against the FAA's own search on 12 October: about a third missing at Santa Barbara and Burbank, none at Atlanta or Las Vegas); the request for the full feed is with the FAA. Times are local to the field. This is for planning; the legal briefing comes from Flight Service or the FAA's own tools.
Daylight
Sunset at PKA 7:39 pm AKDT (03:39 UTC), at KGX 7:26 pm AKDT (03:26 UTC) (civil twilight ends 8:13 pm AKDT (04:13 UTC)). At 120 knots the arrival at KGX is before sunrise there (9:21 am AKDT (17:21 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times.
The wind over the route live wind map, from Windy.com · drag the time bar for the coming hours; the level menu changes the height
Colours show wind speed, the moving lines its direction, at the surface unless you pick a height. Map and forecast by Windy.com; a second opinion beside the government's winds-aloft table above.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads · the turbulence and icing forecasts: turbulence ↗ · icing ↗
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: Napaskiak Airport, Grayling Airport.