Oakland San Francisco Bay Airport to City Of Colorado Springs Municipal OAK → COS
827 nautical miles (952 statute miles) east on a straight line, true course 080°, about 066° magnetic at the departure end (variation 14E). At 120 knots that is 5 h 08 min at the quickest height in today's winds (34,000 ft, a 41-knot tailwind), arriving about 7:09 am MDT (13:09 UTC). Right now OAK is VFR, wind from the south (180°) at 9 knots; COS is VFR, wind from the west-southwest (240°) 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: 4 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 ZULU 2C: moderate icing up to 23,000 ft. Over the route from 229 to 658 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 239 to 718 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 508 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the last 359 nm of the route.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the last 140 nm of 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 OAK.
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 7 forecast points nearest it (SFO, SAC, BIH, ELY, BCE, GJT, PUB). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 7,500 ft | 210° at 23 kt | −12 kt | 6 °C | 132 kt | 6 h 16 min | 8:17 am MDT (14:17 UTC) |
| 9,500 ft | 210° at 23 kt | −14 kt | 3 °C | 134 kt | 6 h 10 min | 8:11 am MDT (14:11 UTC) |
| 11,500 ft | 220° at 24 kt | −17 kt | 0 °C | 137 kt | 6 h 02 min | 8:03 am MDT (14:03 UTC) |
| 13,500 ft | 220° at 27 kt | −19 kt | -4 °C | 139 kt | 5 h 57 min | 7:58 am MDT (13:58 UTC) |
| 15,500 ft | 220° at 29 kt | −20 kt | -8 °C | 140 kt | 5 h 54 min | 7:55 am MDT (13:55 UTC) |
| 17,500 ft | 220° at 32 kt | −21 kt | -12 °C | 141 kt | 5 h 52 min | 7:53 am MDT (13:53 UTC) |
| 18,000 ft FL180 | 220° at 33 kt | −21 kt | -13 °C | 141 kt | 5 h 52 min | 7:53 am MDT (13:53 UTC) |
| 24,000 ft FL240 | 220° at 42 kt | −31 kt | -23 °C | 151 kt | 5 h 29 min | 7:30 am MDT (13:30 UTC) |
| 30,000 ft FL300 | 220° at 51 kt | −37 kt | -29 °C | 157 kt | 5 h 16 min | 7:17 am MDT (13:17 UTC) |
| 34,000 ft FL340 | 230° at 54 kt | −41 kt | -34 °C | 161 kt | 5 h 08 min | 7:09 am MDT (13:09 UTC) |
| 39,000 ft FL390 | 220° at 50 kt | −37 kt | -44 °C | 157 kt | 5 h 16 min | 7:17 am MDT (13:17 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SFO | used from 0 nm out; 34 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° |
| SAC | used from 50 nm out; 53 nm from the line | 110/6 | L/V 4° | 010/11 -2° | 350/11 -7° | 340/24 -16° | 360/44 -23° | 330/24 -30° | 270/21 -35° | 230/23 -43° |
| BIH | used from 100 nm out; 72 nm from the line | L/V | 240/7 1° | 190/13 -3° | 200/26 -16° | 210/43 -26° | 220/54 -28° | 220/51 -35° | 220/47 -43° | |
| ELY | used from 249 nm out; 95 nm from the line | 200/39 3° | 210/27 -2° | 210/45 -15° | 220/56 -24° | 210/60 -28° | 210/63 -34° | 220/61 -43° | ||
| BCE | used from 399 nm out; 77 nm from the line | 220/27 -1° | 210/40 -13° | 220/54 -21° | 220/64 -30° | 220/64 -34° | 220/52 -44° | |||
| GJT | used from 548 nm out; 78 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -45° | ||
| PUB | used from 748 nm out; 72 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° |
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 1,500 feet | from the south (180°) at 9 knots | 10+ mi | none | 9 ft | 11:53 pm PDT (06:53 UTC) |
| SCK Stockton, CA | 50 nm out, 3 nm northwest of the line, tower | VFR Sky: a few clouds at 9,000 feet | from the north (350°) at 5 knots | 10+ mi | none | 32 ft | 06:55 UTC |
| TPH Tonopah, NV | 239 nm out, 16 nm southeast of the line | VFR Sky: overcast at 3,700 feet | from the north-northwest (340°) at 10 knots | 10+ mi | 3,700 ft | 5,430 ft | 06:56 UTC |
| RIF Richfield, UT | 478 nm out, 5 nm northeast of the line | VFR Sky: a few clouds at 12,000 feet | from the north (350°) at 1 knots | 10+ mi | none | 5,318 ft | 07:14 UTC |
| HVE Hanksville, UT | 548 nm out, 19 nm south of the line | VFR Sky: scattered clouds at 4,700 feet, overcast at 5,500 feet | from the west-southwest (250°) at 3 knots | 10+ mi | 5,500 ft | 4,453 ft | 07:10 UTC |
| GJT Grand Junction, CO | 648 nm out, 20 nm north of the line, tower | VFR Sky: a few clouds at 6,000 feet, overcast at 9,000 feet | from the east-southeast (120°) at 15 knots | 10+ mi | 9,000 ft | 4,861 ft | 06:53 UTC |
| ASE Aspen, CO | 728 nm out, 25 nm north of the line, tower | VFR Sky: overcast at 9,500 feet | variable at 3 knots | 10+ mi | 9,500 ft | 7,837 ft | 06:53 UTC |
| AEJ Buena Vista, CO | 757 nm out, 3 nm east of the line | VFR Sky: a broken layer at 7,500 feet, overcast at 8,500 feet | calm | 10+ mi | 7,500 ft | 7,950 ft | 07:15 UTC |
| COS Colorado Springs, CO | destination | VFR Sky: a few clouds at 14,000 feet, a few clouds at 20,000 feet | from the west-southwest (240°) at 7 knots | 10+ mi | none | 6,187 ft | 12:54 am MDT (06:54 UTC) |
The highest airport on this list sits at 7,950 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At COS when you get there the forecast at the estimated arrival, 7:09 am MDT (13:09 UTC)
Wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for COS
- From Mon 12:00 am MDT (06:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southwest at 20 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 12,000 feet
- From Mon 7:00 pm MDT (01:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, clear skies
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
- 6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 19 nm from the route, 120 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 6 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at OAK 6:34 pm PDT (01:34 UTC), at COS 6:23 pm MDT (00:23 UTC) (civil twilight ends 6:50 pm MDT (00:50 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, City Of Colorado Springs Municipal.