California Redwood Coast-Humboldt County to Oakland San Francisco Bay Airport ACV → OAK
214 nautical miles (247 statute miles) southeast on a straight line, true course 155°, about 138° magnetic at the departure end (variation 17E). At 120 knots that is 1 h 08 min at the quickest height in today's winds (24,000 ft, a 70-knot tailwind), arriving about 8:44 pm PDT (03:44 UTC), after sunset at the destination. Right now ACV is VFR, wind from the northwest (310°) at 8 knots; OAK is VFR, wind from the west-southwest (240°) at 10 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: 2 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 whole route.
- AIRMET TANGO 2W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 19 nm along the route.
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 ACV.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E75L at 34,000 ft, 42 nm east, 6:25 pm PDT (01:25 UTC): moderate chop turbulence, remarks: entered by zoa fdcs. 117 nm along the route, 42 nm east of the line.
as filed, and in English
RNO UA /OV RBL160040/TM 0125/FL340/TP E75L/TB MOD CHOP/RM ENTERED BY ZOA FDCS
- Report
- a routine report filed through RNO
- Where
- 40 nm south (160°) of RBL
- Time
- 01:25 UTC
- Height
- at 34,000 ft
- Aircraft
- E75L
- Turbulence
- moderate chop
- Remarks
- entered by zoa fdcs
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 3 forecast points nearest it (FOT, RBL, SFO). 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 | 050° at 12 kt | −3 kt | 123 kt | 1 h 44 min | 9:20 pm PDT (04:20 UTC) | |
| 5,500 ft | 050° at 9 kt | −3 kt | 123 kt | 1 h 44 min | 9:20 pm PDT (04:20 UTC) | |
| 7,500 ft | 030° at 11 kt | −6 kt | 2 °C | 126 kt | 1 h 42 min | 9:18 pm PDT (04:18 UTC) |
| 9,500 ft | 020° at 16 kt | −11 kt | -1 °C | 131 kt | 1 h 38 min | 9:14 pm PDT (04:14 UTC) |
| 11,500 ft | 010° at 23 kt | −20 kt | -4 °C | 140 kt | 1 h 32 min | 9:08 pm PDT (04:08 UTC) |
| 13,500 ft | 360° at 33 kt | −30 kt | -7 °C | 150 kt | 1 h 26 min | 9:02 pm PDT (04:02 UTC) |
| 15,500 ft | 360° at 44 kt | −40 kt | -10 °C | 160 kt | 1 h 20 min | 8:56 pm PDT (03:56 UTC) |
| 17,500 ft | 360° at 56 kt | −51 kt | -12 °C | 171 kt | 1 h 15 min | 8:51 pm PDT (03:51 UTC) |
| 18,000 ft FL180 | 360° at 59 kt | −53 kt | -13 °C | 173 kt | 1 h 14 min | 8:50 pm PDT (03:50 UTC) |
| 24,000 ft FL240 | 360° at 77 kt | −70 kt | -23 °C | 190 kt | 1 h 08 min | 8:44 pm PDT (03:44 UTC) |
| 30,000 ft FL300 | 360° at 67 kt | −62 kt | -36 °C | 182 kt | 1 h 11 min | 8:47 pm PDT (03:47 UTC) |
| 34,000 ft FL340 | 350° at 33 kt | −33 kt | -40 °C | 153 kt | 1 h 24 min | 9:00 pm PDT (04:00 UTC) |
| 39,000 ft FL390 | 300° at 20 kt | −16 kt | -43 °C | 136 kt | 1 h 34 min | 9:10 pm PDT (04:10 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| FOT | used from 0 nm out; 12 nm from the line | 040/18 | 020/10 5° | 020/22 0° | 010/38 -3° | 360/70 -12° | 360/81 -23° | 360/88 -39° | 360/52 -44° | 330/31 -43° |
| RBL | used from 97 nm out; 71 nm from the line | 020/16 | 360/6 5° | L/V -2° | 340/10 -8° | 360/59 -15° | 360/87 -23° | 360/68 -35° | 330/28 -37° | 260/26 -42° |
| SFO | used from 146 nm out; 47 nm from the line | 120/13 | 090/14 5° | 040/14 -1° | 350/17 -5° | 360/42 -14° | 360/64 -23° | 350/38 -32° | 300/19 -37° | 250/18 -44° |
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 |
|---|---|---|---|---|---|---|---|
| ACV Arcata/Eureka, CA | departure | VFR | from the northwest (310°) at 8 knots | 7 mi | none | 222 ft | 6:53 pm PDT (01:53 UTC) |
| FOT Fortuna, CA | 19 nm out, 12 nm southwest of the line | VFR | from the west (280°) at 8 knots | 10+ mi | none | 392 ft | 02:10 UTC |
| UKI Ukiah, CA | 117 nm out, 8 nm southwest of the line | VFR Weather: light rain | calm | 10+ mi | none | 616 ft | 01:56 UTC |
| STS Santa Rosa, CA | 156 nm out, 8 nm southwest of the line, tower | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 128 ft | 01:53 UTC |
| APC Napa, CA | 185 nm out, 9 nm east of the line, tower | VFR | from the south (180°) at 11 knots | 10+ mi | none | 35 ft | 01:54 UTC |
| OAK Oakland, CA | destination | VFR Sky: a few clouds at 1,700 feet, a few clouds at 4,400 feet | from the west-southwest (240°) at 10 knots | 10+ mi | none | 9 ft | 6:53 pm PDT (01:53 UTC) |
The highest airport on this list sits at 616 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At OAK when you get there the forecast at the estimated arrival, 8:44 pm PDT (03:44 UTC)
Wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet VFR
The whole forecast for OAK
- From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, a few clouds at 2,000 feet
- From Sun 7:00 pm PDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet
- From Sun 11:00 pm PDT (06:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, clear skies
The forecast for ACV, the departure
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north-northwest at 18 knots, gusting to 30, visibility more than 6 miles, clear skies
- From Sun 10:00 pm PDT (05:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 5:00 am PDT (12:00 UTC): wind from the east-northeast at 3 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 pm PDT (19:00 UTC): wind from the north-northwest at 12 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZOA
Daylight
Sunset at ACV 6:40 pm PDT (01:40 UTC), at OAK 6:35 pm PDT (01:35 UTC) (civil twilight ends 7:02 pm PDT (02:02 UTC)). At 120 knots the arrival at OAK is after sunset there (6:37 pm PDT (01:37 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: California Redwood Coast-Humboldt County, Oakland San Francisco Bay Airport.