Sitka Seaplane Base to Taku Harbor Seaplane Base A29 → A43
75 nautical miles (86 statute miles) northeast on a straight line, true course 035°, about 008° magnetic at the departure end (variation 27E). At 120 knots that is 23 min at the quickest height in today's winds (30,000 ft, a 75-knot tailwind), arriving about 4:12 pm AKDT (00:12 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: 68 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 A29.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 2,000 ft, 13 nm southwest, 2:28 pm AKDT (22:28 UTC): no turbulence, no icing, a broken layer above 2,000 ft, light rain, remarks: during the climb zan. At the departure end, 13 nm southwest of the line.
as filed, and in English
SIT UA /OV BKA/TM 2228/FL020/TP PC12/SK BKN020/WX -RA/TB NEG/IC NEG/RM DURC ZAN
- Report
- a routine report filed through SIT
- Where
- over BKA
- Time
- 22:28 UTC
- Height
- at 2,000 ft
- Aircraft
- PC12
- Sky
- a broken layer from 2,000 ft
- Weather
- light rain
- Turbulence
- none
- Icing
- none
- Remarks
- during the climb zan
- BCS3 at 35,000 ft, 13 nm southwest, 12:52 pm AKDT (20:52 UTC): no turbulence, remarks: zan. At the departure end, 13 nm southwest of the line.
as filed, and in English
SIT UA /OV BKA/TM 2052/FL350/TP BCS3/TB NEG/RM ZAN
- Report
- a routine report filed through SIT
- Where
- over BKA
- Time
- 20:52 UTC
- Height
- at 35,000 ft
- Aircraft
- BCS3
- Turbulence
- none
- Remarks
- zan
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 1 forecast point nearest it (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 | 160° at 17 kt | −10 kt | 130 kt | 35 min | 4:24 pm AKDT (00:24 UTC) | |
| 5,500 ft | 200° at 20 kt | −20 kt | 140 kt | 32 min | 4:21 pm AKDT (00:21 UTC) | |
| 7,500 ft | 230° at 26 kt | −25 kt | -4 °C | 145 kt | 31 min | 4:20 pm AKDT (00:20 UTC) |
| 9,500 ft | 240° at 33 kt | −30 kt | -5 °C | 150 kt | 30 min | 4:19 pm AKDT (00:19 UTC) |
| 11,500 ft | 240° at 38 kt | −34 kt | -9 °C | 154 kt | 29 min | 4:18 pm AKDT (00:18 UTC) |
| 13,500 ft | 240° at 44 kt | −39 kt | -12 °C | 159 kt | 28 min | 4:17 pm AKDT (00:17 UTC) |
| 15,500 ft | 250° at 50 kt | −43 kt | -15 °C | 163 kt | 28 min | 4:17 pm AKDT (00:17 UTC) |
| 17,500 ft | 250° at 57 kt | −47 kt | -17 °C | 167 kt | 27 min | 4:16 pm AKDT (00:16 UTC) |
| 18,000 ft FL180 | 250° at 59 kt | −48 kt | -18 °C | 168 kt | 27 min | 4:16 pm AKDT (00:16 UTC) |
| 24,000 ft FL240 | 240° at 76 kt | −69 kt | -28 °C | 189 kt | 24 min | 4:13 pm AKDT (00:13 UTC) |
| 30,000 ft FL300 | 240° at 83 kt | −75 kt | -43 °C | 195 kt | 23 min | 4:12 pm AKDT (00:12 UTC) |
| 34,000 ft FL340 | 250° at 89 kt | −73 kt | -52 °C | 193 kt | 23 min | 4:12 pm AKDT (00:12 UTC) |
| 39,000 ft FL390 | 250° at 74 kt | −60 kt | -53 °C | 180 kt | 25 min | 4:14 pm AKDT (00:14 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JNU | used from 0 nm out; 60 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
At A43 when you get there the forecast at the estimated arrival, 4:12 pm AKDT (00:12 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 A29 6:06 pm AKDT (02:06 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: Sitka Seaplane Base, Taku Harbor Seaplane Base.