Hooper Bay Airport to St. Mary'S Airport HPB → KSM
87 nautical miles (100 statute miles) northeast on a straight line, true course 067°, about 059° magnetic at the departure end (variation 8E). At 120 knots that is 40 min at the quickest height in today's winds (39,000 ft, a 9-knot tailwind), arriving about 9:52 pm AKDT (05:52 UTC), after sunset at the destination. Right now HPB is marginal VFR, wind from the south-southwest (200°) at 4 knots; KSM is VFR, wind from the south-southeast (150°) at 7 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: 46 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 HPB.
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 1 forecast point nearest it (CZF). 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 7 kt | −5 kt | 125 kt | 42 min | 9:54 pm AKDT (05:54 UTC) | |
| 5,500 ft | 200° at 7 kt | −5 kt | 125 kt | 42 min | 9:54 pm AKDT (05:54 UTC) | |
| 7,500 ft | 200° at 7 kt | −4 kt | -12 °C | 124 kt | 42 min | 9:54 pm AKDT (05:54 UTC) |
| 9,500 ft | 190° at 7 kt | −4 kt | -16 °C | 124 kt | 42 min | 9:54 pm AKDT (05:54 UTC) |
| 11,500 ft | 190° at 6 kt | −3 kt | -21 °C | 123 kt | 42 min | 9:54 pm AKDT (05:54 UTC) |
| 13,500 ft | 190° at 4 kt | −2 kt | -24 °C | 122 kt | 43 min | 9:55 pm AKDT (05:55 UTC) |
| 15,500 ft | 190° at 2 kt | −1 kt | -28 °C | 121 kt | 43 min | 9:55 pm AKDT (05:55 UTC) |
| 17,500 ft | light and variable | 0 | -31 °C | 120 kt | 44 min | 9:56 pm AKDT (05:56 UTC) |
| 18,000 ft FL180 | light and variable | 0 | -32 °C | 120 kt | 44 min | 9:56 pm AKDT (05:56 UTC) |
| 24,000 ft FL240 | 140° at 7 kt | +2 kt | -39 °C | 118 kt | 44 min | 9:56 pm AKDT (05:56 UTC) |
| 30,000 ft FL300 | 150° at 24 kt | +3 kt | -51 °C | 117 kt | 45 min | 9:57 pm AKDT (05:57 UTC) |
| 34,000 ft FL340 | 170° at 32 kt | −7 kt | -58 °C | 127 kt | 41 min | 9:53 pm AKDT (05:53 UTC) |
| 39,000 ft FL390 | 190° at 16 kt | −9 kt | -52 °C | 129 kt | 40 min | 9:52 pm AKDT (05:52 UTC) |
Based on data from the 13th at 00:00 UTC; valid on the 13th 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; 20 nm from the line | 200/7 | 200/7 -8° | 190/7 -15° | 190/6 -22° | L/V -32° | 140/7 -39° | 150/24 -51° | 170/32 -58° | 190/16 -52° |
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 |
|---|---|---|---|---|---|---|---|
| HPB Hooper Bay, AK | departure | marginal VFR Sky: overcast at 2,500 feet | from the south-southwest (200°) at 4 knots | 10+ mi | 2,500 ft | 19 ft | 8:56 pm AKDT (04:56 UTC) |
| VAK Chevak, AK | 19 nm out, 7 nm south of the line | marginal VFR Sky: overcast at 2,700 feet | from the south (180°) at 3 knots | 10+ mi | 2,700 ft | 60 ft | 04:56 UTC |
| KSM St Mary'S, AK | destination | VFR Sky: scattered clouds at 500 feet, overcast at 4,000 feet Weather: light rain | from the south-southeast (150°) at 7 knots | 10+ mi | 4,000 ft | 314 ft | 8:56 pm AKDT (04:56 UTC) |
The highest airport on this list sits at 314 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
HPB Hooper Bay, AK
the observation as issued, and in English
METAR PAHP 130456Z AUTO 20004KT 10SM OVC025 05/02 A2944 RMK AO2 SLP969 T00500017
- METAR
- a routine hourly observation
- PAHP
- the station, PAHP
- 130456Z
- observed 8:56 pm AKDT (04:56 UTC)
- AUTO
- fully automated report, nobody checked it
- 20004KT
- wind from the south-southwest at 4 knots
- 10SM
- visibility 10 miles
- OVC025
- overcast at 2,500 feet
- 05/02
- temperature 5 °C (41 °F), dew point 2 °C (36 °F)
- A2944
- altimeter setting 29.44 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- SLP969
- sea-level pressure 996.9 hPa
- T00500017
- temperature 5 °C (41 °F), dew point 1.7 °C (35 °F)
VAK Chevak, AK
the observation as issued, and in English
METAR PAVA 130456Z AUTO 18003KT 10SM OVC027 04/03 A2948 RMK AO2 SLP980 T00390028 $
- METAR
- a routine hourly observation
- PAVA
- the station, PAVA
- 130456Z
- observed 04:56 UTC on the 13th
- AUTO
- fully automated report, nobody checked it
- 18003KT
- wind from the south at 3 knots
- 10SM
- visibility 10 miles
- OVC027
- overcast at 2,700 feet
- 04/03
- temperature 4 °C (39 °F), dew point 3 °C (37 °F)
- A2948
- altimeter setting 29.48 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- SLP980
- sea-level pressure 998.0 hPa
- T00390028
- temperature 3.9 °C (39 °F), dew point 2.8 °C (37 °F)
- $
- the station needs maintenance
KSM St Mary'S, AK
the observation as issued, and in English
METAR PASM 130456Z AUTO 15007KT 10SM -RA SCT005 OVC040 03/03 A2949 RMK AO2 RAB50 SLP993 P0000 T00330033
- METAR
- a routine hourly observation
- PASM
- the station, PASM
- 130456Z
- observed 8:56 pm AKDT (04:56 UTC)
- AUTO
- fully automated report, nobody checked it
- 15007KT
- wind from the south-southeast at 7 knots
- 10SM
- visibility 10 miles
- -RA
- light rain
- SCT005
- scattered clouds at 500 feet
- OVC040
- overcast at 4,000 feet
- 03/03
- temperature 3 °C (37 °F), dew point 3 °C (37 °F)
- A2949
- altimeter setting 29.49 inches of mercury
- RMK
- remarks follow
- AO2
- automated station with a precipitation sensor
- RAB50
- rain began 50 minutes past the hour
- SLP993
- sea-level pressure 999.3 hPa
- P0000
- a trace of precipitation in the last hour
- T00330033
- temperature 3.3 °C (38 °F), dew point 3.3 °C (38 °F)
At KSM when you get there the forecast at the estimated arrival, 9:52 pm AKDT (05:52 UTC)
KSM 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
HPB: 7 notices in force. all of them, grouped →
KSM: 4 notices in force. all of them, grouped →
2 notices near the line (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):
- Navigation aid DME out of service until Sun 28 Feb, 7:17 am AKST (16:17 UTC) · 10 nm along the route, 13 nm off the line · CZF 08/004
as issued
!CZF 08/004 CZF NAV DME U/S 2608311618-2702281617
- Navigation aid NDB beacon out of service until Sun 28 Feb, 7:17 am AKST (16:17 UTC) · 10 nm along the route, 13 nm off the line · CZF 08/005
as issued
!CZF 08/005 CZF NAV NDB U/S 2608311617-2702281617
From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked a minute 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 HPB 7:57 pm AKDT (03:57 UTC), at KSM 7:45 pm AKDT (03:45 UTC) (civil twilight ends 8:30 pm AKDT (04:30 UTC)). At 120 knots the arrival at KSM is after sunset there (7:48 pm AKDT (03:48 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: Hooper Bay Airport, St. Mary'S Airport.