Olga Bay Seaplane Base to Taku Harbor Seaplane Base KOY → A43
650 nautical miles (748 statute miles) east on a straight line, true course 077°, about 056° magnetic at the departure end (variation 21E). At 120 knots that is 3 h 39 min at the quickest height in today's winds (34,000 ft, a 58-knot tailwind), arriving about 3:23 am AKDT (11:23 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: 67 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 KOY.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 descending, 16 nm north, 10:51 pm AKDT (06:51 UTC): remarks: during the descent runway 8 ais 2SM gusty winds akfss. At the destination end, 16 nm north of the line.
as filed, and in English
JNU UA /OV JNU /TM 0651 /FLUNKN /TP B737 /RM DURD RY8 AIS 2SM GUSTY WINDS AKFSS
- Report
- a routine report filed through JNU
- Where
- over JNU
- Time
- 06:51 UTC
- Height
- height not given
- Aircraft
- B737
- Remarks
- during the descent runway 8 ais 2SM gusty winds akfss
- B737 at 2,200 ft, 16 nm north, 10:09 pm AKDT (06:09 UTC): light chop turbulence, no icing, a broken layer above 2,200 ft, remarks: during the climb zan. At the destination end, 16 nm north of the line.
as filed, and in English
JNU UA /OV JNU/TM 0609/FL022/TP B737/SK BKN022/TB LGT CHOP/IC NEG/RM DURC/ ZAN
- Report
- a routine report filed through JNU
- Where
- over JNU
- Time
- 06:09 UTC
- Height
- at 2,200 ft
- Aircraft
- B737
- Sky
- a broken layer from 2,200 ft
- Turbulence
- light chop
- Icing
- none
- Remarks
- during the climb zan
- B737 descending, 16 nm north, 8:53 pm AKDT (04:53 UTC): light chop turbulence, remarks: during the descent runway 8 akfss. At the destination end, 16 nm north of the line.
as filed, and in English
JNU UA /OV JNU /TM 0453 /FLUNKN /TP B737 /TB LGT CHOP /RM DURD RY8 AKFSS
- Report
- a routine report filed through JNU
- Where
- over JNU
- Time
- 04:53 UTC
- Height
- height not given
- Aircraft
- B737
- Turbulence
- light chop
- Remarks
- during the descent runway 8 akfss
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 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 | 230° at 15 kt | −12 kt | 132 kt | 4 h 55 min | 4:39 am AKDT (12:39 UTC) | |
| 5,500 ft | 240° at 17 kt | −15 kt | 135 kt | 4 h 49 min | 4:33 am AKDT (12:33 UTC) | |
| 7,500 ft | 240° at 19 kt | −17 kt | -7 °C | 137 kt | 4 h 45 min | 4:29 am AKDT (12:29 UTC) |
| 9,500 ft | 240° at 20 kt | −18 kt | -12 °C | 138 kt | 4 h 43 min | 4:27 am AKDT (12:27 UTC) |
| 11,500 ft | 240° at 22 kt | −19 kt | -16 °C | 139 kt | 4 h 41 min | 4:25 am AKDT (12:25 UTC) |
| 13,500 ft | 240° at 25 kt | −22 kt | -20 °C | 142 kt | 4 h 35 min | 4:19 am AKDT (12:19 UTC) |
| 15,500 ft | 240° at 29 kt | −26 kt | -23 °C | 146 kt | 4 h 27 min | 4:11 am AKDT (12:11 UTC) |
| 17,500 ft | 240° at 33 kt | −29 kt | -26 °C | 149 kt | 4 h 22 min | 4:06 am AKDT (12:06 UTC) |
| 18,000 ft FL180 | 240° at 34 kt | −30 kt | -27 °C | 150 kt | 4 h 20 min | 4:04 am AKDT (12:04 UTC) |
| 24,000 ft FL240 | 240° at 47 kt | −41 kt | -37 °C | 161 kt | 4 h 02 min | 3:46 am AKDT (11:46 UTC) |
| 30,000 ft FL300 | 240° at 62 kt | −56 kt | -45 °C | 176 kt | 3 h 42 min | 3:26 am AKDT (11:26 UTC) |
| 34,000 ft FL340 | 240° at 62 kt | −58 kt | -48 °C | 178 kt | 3 h 39 min | 3:23 am AKDT (11:23 UTC) |
| 39,000 ft FL390 | 240° at 63 kt | −58 kt | -47 °C | 178 kt | 3 h 39 min | 3:23 am AKDT (11:23 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ADQ | used from 0 nm out; 44 nm from the line | 250/23 | 250/18 -5° | 240/17 -12° | 240/17 -19° | 240/19 -30° | 240/34 -39° | 250/39 -45° | 250/42 -49° | 240/54 -47° |
| MDO | used from 200 nm out; 102 nm from the line | 250/15 | 240/14 -5° | 230/15 -11° | 230/15 -18° | 230/14 -29° | 230/29 -40° | 240/50 -46° | 240/53 -47° | 240/58 -46° |
| YAK | used from 350 nm out; 127 nm from the line | 210/8 | 240/15 -5° | 250/20 -11° | 250/25 -18° | 240/49 -27° | 240/60 -35° | 240/78 -45° | 240/74 -47° | 240/68 -46° |
| JNU | used from 550 nm out; 58 nm from the line | 180/24 | 230/31 0° | 230/32 -6° | 230/41 -12° | 240/62 -21° | 240/73 -32° | 240/94 -45° | 250/94 -50° | 250/78 -50° |
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 |
|---|---|---|---|---|---|---|---|
| KOY Olga Bay, AK | departure | no report just now | 0 ft | ||||
| ADQ Kodiak, AK | 60 nm out, 22 nm north of the line, tower | VFR | calm | 10+ mi | none | 78 ft | 06:53 UTC |
| KDK Kodiak, AK | 70 nm out, 25 nm north of the line | no report just now | 139 ft | ||||
| ELV Elfin Cove, AK | 580 nm out, 6 nm northwest of the line | no report just now | 0 ft | ||||
| JNU Juneau, AK | 630 nm out, 16 nm north of the line, tower | marginal VFR Sky: a broken layer at 1,900 feet, overcast at 2,900 feet Weather: light rain | from the east-southeast (120°) at 14 knots, gusting to 22 | 9 mi | 1,900 ft | 25 ft | 06:53 UTC |
| A43 Taku Harbor, AK | destination | no report just now | 0 ft |
The highest airport on this list sits at 139 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, 3:23 am AKDT (11:23 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 KOY 7:21 pm AKDT (03:21 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 before sunrise there (7:24 am AKDT (15:24 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: Olga Bay Seaplane Base, Taku Harbor Seaplane Base.