Oakland San Francisco Bay Airport to Benjamin Taisacan Manglona International OAK → GRO
5,004 nautical miles (5,759 statute miles) west on a straight line, true course 283°, about 269° magnetic at the departure end (variation 14E). At 120 knots that is 38 h 47 min at the quickest height in today's winds (12,500 ft, a 9-knot tailwind), arriving about 9:54 am ChST (23:54 UTC). Right now OAK is VFR, wind from the east-southeast (110°) at 5 knots; GRO is marginal VFR, wind from the west-northwest (290°) at 6 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: 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
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 130 nm of the route.
- AIRMET TANGO 2W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 130 to 180 nm out.
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 OAK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A35K at 32,000 ft, 24 nm north, 1:39 am PDT (08:39 UTC): moderate chop turbulence, remarks: fdcs zoa. At the departure end, 24 nm north of the line.
as filed, and in English
OAK UA /OV OAK348024/TM 0839/FL320/TP A35K/TB MOD CHOP/RM FDCS ZOA
- Report
- a routine report filed through OAK
- Where
- 24 nm north (348°) of OAK
- Time
- 08:39 UTC
- Height
- at 32,000 ft
- Aircraft
- A35K
- Turbulence
- moderate chop
- Remarks
- fdcs zoa
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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 6 forecast points nearest it (SFO, FOT, OTH, CAR, OTH, AST). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 010° at 8 kt | −3 kt | 123 kt | 40 h 41 min | 11:48 am ChST (01:48 UTC) | |
| 6,500 ft | 010° at 12 kt | −4 kt | 1 °C | 124 kt | 40 h 21 min | 11:28 am ChST (01:28 UTC) |
| 8,500 ft | 360° at 20 kt | −6 kt | -2 °C | 126 kt | 39 h 43 min | 10:50 am ChST (00:50 UTC) |
| 10,500 ft | 360° at 30 kt | −8 kt | -2 °C | 128 kt | 39 h 06 min | 10:13 am ChST (00:13 UTC) |
| 12,500 ft | 360° at 39 kt | −9 kt | -4 °C | 129 kt | 38 h 47 min | 9:54 am ChST (23:54 UTC) |
| 14,500 ft | 360° at 45 kt | −9 kt | -8 °C | 129 kt | 38 h 47 min | 9:54 am ChST (23:54 UTC) |
| 16,500 ft | 350° at 51 kt | −8 kt | -11 °C | 128 kt | 39 h 06 min | 10:13 am ChST (00:13 UTC) |
| 18,000 ft FL180 | 350° at 55 kt | −8 kt | -13 °C | 128 kt | 39 h 06 min | 10:13 am ChST (00:13 UTC) |
| 24,000 ft FL240 | 350° at 61 kt | −6 kt | -25 °C | 126 kt | 39 h 43 min | 10:50 am ChST (00:50 UTC) |
| 30,000 ft FL300 | 350° at 67 kt | −5 kt | -40 °C | 125 kt | 40 h 02 min | 11:09 am ChST (01:09 UTC) |
| 34,000 ft FL340 | 350° at 65 kt | −6 kt | -48 °C | 126 kt | 39 h 43 min | 10:50 am ChST (00:50 UTC) |
| 39,000 ft FL390 | 340° at 40 kt | +4 kt | -47 °C | 116 kt | 43 h 08 min | 2:15 pm ChST (04:15 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SFO | used from 0 nm out; 21 nm from the line | 090/9 | 050/12 4° | 010/17 -2° | 350/34 -3° | 360/70 -11° | 360/75 -22° | 350/57 -38° | 330/37 -42° | 280/25 -44° |
| FOT | used from 150 nm out; 156 nm from the line | 020/14 | 010/18 4° | 010/27 0° | 360/45 -1° | 350/59 -12° | 350/66 -23° | 350/79 -39° | 350/73 -48° | 330/40 -48° |
| OTH | used from 1099 nm out; 1010 nm from the line | 020/7 | 020/13 1° | 010/26 -4° | 360/41 -4° | 350/60 -13° | 350/65 -24° | 350/72 -40° | 350/68 -48° | 340/43 -47° |
| CAR | used from 2747 nm out; 3140 nm from the line | 300/29 | 280/23 8° | 280/33 4° | 280/40 -1° | 280/40 -14° | 300/46 -24° | 290/44 -41° | 270/57 -50° | 260/73 -54° |
| OTH | used from 2797 nm out; 2674 nm from the line | 020/7 | 020/13 1° | 010/26 -4° | 360/41 -4° | 350/60 -13° | 350/65 -24° | 350/72 -40° | 350/68 -48° | 340/43 -47° |
| AST | used from 2947 nm out; 2822 nm from the line | L/V | 340/6 1° | 350/17 -2° | 360/32 -3° | 360/50 -14° | 350/55 -26° | 350/58 -40° | 350/62 -49° | 340/40 -47° |
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 |
|---|---|---|---|---|---|---|---|
| OAK Oakland, CA | departure | VFR Sky: a few clouds at 2,000 feet | from the east-southeast (110°) at 5 knots | 10+ mi | none | 9 ft | 1:53 am PDT (08:53 UTC) |
| DVO Novato, CA | 20 nm out, 21 nm north of the line | VFR Sky: scattered clouds at 8,000 feet | from the south-southwest (200°) at 8 knots | 10+ mi | none | 4 ft | 08:55 UTC |
| GRO Rota Island, MP | destination | marginal VFR Sky: a broken layer at 1,200 feet, a broken layer at 12,000 feet | from the west-northwest (290°) at 6 knots | 7 mi | 1,200 ft | 606 ft | 5:50 pm ChST (07:50 UTC) |
The highest airport on this list sits at 606 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GRO when you get there the forecast at the estimated arrival, 9:54 am ChST (23:54 UTC)
Wind from the west at 6 knots, visibility more than 6 miles, scattered clouds at 1,300 feet, scattered clouds at 4,500 feet and more above VFR
The whole forecast for GRO
- From Mon 4:00 pm ChST (06:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, scattered clouds at 1,300 feet, scattered clouds at 4,500 feet and more above
The forecast for OAK, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 1,500 feet
- From Mon 2:00 am PDT (09:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a few clouds at 1,500 feet
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, clear skies
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 OAK 6:34 pm PDT (01:34 UTC), at GRO 6:01 pm ChST (08:01 UTC) (civil twilight ends 6:22 pm ChST (08:22 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: Oakland San Francisco Bay Airport, Benjamin Taisacan Manglona International.





