Alitak Seaplane Base to Taku Harbor Seaplane Base ALZ → A43
654 nautical miles (753 statute miles) east on a straight line, true course 075°, about 054° magnetic at the departure end (variation 21E). At 120 knots that is 3 h 25 min at the quickest height in today's winds (34,000 ft, a 71-knot tailwind), arriving about 8:03 pm AKDT (04:03 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: 57 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 ALZ.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- C172 at 2,000 ft, 49 nm north, 2:40 pm AKDT (22:40 UTC): overcast above 2,000 ft, remarks: inbound to jnu east side of canal bases OVC020 jnut akfss. 625 nm along the route, 49 nm north of the line.
as filed, and in English
JNU UA /OV SGY-JNU /TM 2240 /FL020 /TP C172 /SK OVC020 /RM INBOUND TO JNU EAST SIDE OF CANAL BASES OVC020 JNUT AKFSS
- Report
- a routine report filed through JNU
- Where
- between SGY and JNU
- Time
- 22:40 UTC
- Height
- at 2,000 ft
- Aircraft
- C172
- Sky
- overcast from 2,000 ft
- Remarks
- inbound to jnu east side of canal bases OVC020 jnut akfss
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 4 forecast points nearest it (ADQ, MDO, YAK, JNU). 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 18 kt | −11 kt | 131 kt | 5 h | 9:38 pm AKDT (05:38 UTC) | |
| 5,500 ft | 230° at 19 kt | −15 kt | 135 kt | 4 h 51 min | 9:29 pm AKDT (05:29 UTC) | |
| 7,500 ft | 230° at 21 kt | −17 kt | -6 °C | 137 kt | 4 h 46 min | 9:24 pm AKDT (05:24 UTC) |
| 9,500 ft | 230° at 23 kt | −19 kt | -10 °C | 139 kt | 4 h 42 min | 9:20 pm AKDT (05:20 UTC) |
| 11,500 ft | 230° at 26 kt | −22 kt | -14 °C | 142 kt | 4 h 36 min | 9:14 pm AKDT (05:14 UTC) |
| 13,500 ft | 230° at 30 kt | −26 kt | -18 °C | 146 kt | 4 h 29 min | 9:07 pm AKDT (05:07 UTC) |
| 15,500 ft | 240° at 35 kt | −30 kt | -22 °C | 150 kt | 4 h 22 min | 9:00 pm AKDT (05:00 UTC) |
| 17,500 ft | 240° at 39 kt | −34 kt | -25 °C | 154 kt | 4 h 15 min | 8:53 pm AKDT (04:53 UTC) |
| 18,000 ft FL180 | 240° at 40 kt | −36 kt | -26 °C | 156 kt | 4 h 12 min | 8:50 pm AKDT (04:50 UTC) |
| 24,000 ft FL240 | 230° at 62 kt | −52 kt | -35 °C | 172 kt | 3 h 48 min | 8:26 pm AKDT (04:26 UTC) |
| 30,000 ft FL300 | 230° at 77 kt | −66 kt | -45 °C | 186 kt | 3 h 31 min | 8:09 pm AKDT (04:09 UTC) |
| 34,000 ft FL340 | 240° at 79 kt | −71 kt | -48 °C | 191 kt | 3 h 25 min | 8:03 pm AKDT (04:03 UTC) |
| 39,000 ft FL390 | 240° at 73 kt | −66 kt | -47 °C | 186 kt | 3 h 31 min | 8:09 pm AKDT (04:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ADQ | used from 0 nm out; 56 nm from the line | 240/21 | 240/22 -5° | 240/21 -11° | 240/20 -19° | 230/24 -30° | 230/40 -39° | 230/60 -45° | 230/63 -45° | 230/64 -45° |
| MDO | used from 198 nm out; 114 nm from the line | 240/16 | 240/19 -4° | 240/19 -10° | 240/19 -17° | 240/27 -29° | 230/50 -37° | 230/66 -46° | 230/72 -47° | 240/70 -46° |
| YAK | used from 347 nm out; 137 nm from the line | 190/26 | 230/18 -2° | 210/22 -8° | 220/33 -13° | 230/58 -25° | 230/85 -34° | 230/101 -46° | 240/97 -49° | 240/84 -48° |
| JNU | used from 545 nm out; 68 nm from the line | 150/18 | 210/22 -3° | 240/32 -4° | 240/39 -10° | 250/59 -18° | 240/76 -28° | 240/83 -43° | 250/89 -52° | 250/74 -53° |
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 |
|---|---|---|---|---|---|---|---|
| ALZ Lazy Bay, AK | departure | no report just now | 0 ft | ||||
| ELV Elfin Cove, AK | 585 nm out, 7 nm northwest of the line | no report just now | 0 ft | ||||
| JNU Juneau, AK | 634 nm out, 16 nm north of the line, tower | VFR Sky: a few clouds at 1,400 feet, a broken layer at 3,200 feet, overcast at 4,300 feet Weather: light rain | from the east (090°) at 8 knots, gusting to 18 | 10+ mi | 3,200 ft | 25 ft | 00:28 UTC |
| A43 Taku Harbor, AK | destination | no report just now | 0 ft |
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 A43 when you get there the forecast at the estimated arrival, 8:03 pm AKDT (04:03 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 ALZ 7:22 pm AKDT (03:22 UTC), at A43 5:59 pm AKDT (01:59 UTC) (civil twilight ends 6:39 pm AKDT (02:39 UTC)). At 120 knots the arrival at A43 is after sunset there (6:02 pm AKDT (02:02 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: Alitak Seaplane Base, Taku Harbor Seaplane Base.