Plan a flight · Sun 9:26 pm CDT (02:26 UTC)

Columbia Regional to Oakland San Francisco Bay Airport COU → OAK

1,409 nautical miles (1,622 statute miles) west on a straight line, true course 277°, about 277° magnetic at the departure end (variation 0E). At 120 knots that is 13 h 49 min at the quickest height in today's winds (4,500 ft, a 18-knot headwind), arriving about 9:15 am PDT (16:15 UTC). Right now COU is VFR, wind from the south (190°) at 5 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

SIGMET 6W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm CDT (03:55 UTC). Near the route, 600 nm along the route.

as issued

WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 6W
VALID UNTIL 0355Z
CO NM
FROM 50SSW DEN-30NNE TBE-50SSW CME-50E SJN-20NE DVC-50SSW DEN
AREA TS MOV FROM 23040KT. TOPS TO FL340.

SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 10:55 pm CDT (03:55 UTC). Over the route from 1110 to 1230 nm out.
as issued
```
WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 10W
VALID UNTIL 0355Z
NV
FROM 70SW TWF-40NNW BVL-40SW ELY-30ESE OAL-40WNW OAL-70SW TWF
AREA TS MOV FROM 23020KT. TOPS TO FL300.
```
AIRMET TANGO 3W: 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 route from 100 to 460 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 520 to 1140 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 530 to 1190 nm out.
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 route from 620 to 830 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 620 to 690 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 770 to 1210 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 780 to 1160 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 820 to 950 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 1150 to 1290 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 30 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 COU.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent B407 at 10,000 ft, 29 nm south, 9:13 pm CDT (02:13 UTC): moderate to severe turbulence. 590 nm along the route, 29 nm south of the line.
as filed, and in English
```
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
```
Report
an urgent report filed through COS
Where
10 west cos
Time
02:13 UTC
Height
at 10,000 ft
Aircraft
B407
Turbulence
mdt-sev
UAL2199 at 35,000 ft, 48 nm north, 6:31 pm CDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 530 nm along the route, 48 nm north of the line.
as filed, and in English
```
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
```
Report
a routine report filed through ARP
B738 at 18,000 ft, 17 nm south, 9:02 pm CDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. 610 nm along the route, 17 nm south of the line.
as filed, and in English
```
COS UA /OV BRK270030/TM 0202/FL180/TP B738/TB MOD CHOP 180-250/RM DURC ZDVWC-41
```
Report
a routine report filed through COS
Where
30 nm west (270°) of BRK
Time
02:02 UTC
Height
at 18,000 ft
Aircraft
B738
Turbulence
moderate chop from 18,000 ft to 25,000 ft
Remarks
during the climb ZDVWC-41
BCS1 at 24,000 ft, 40 nm north, 8:30 pm CDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. 610 nm along the route, 40 nm north of the line.
as filed, and in English
```
DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
30 nm west (270°) of DVV
Time
01:30 UTC
Height
at 24,000 ft
Aircraft
BCS1
Turbulence
moderate from 22,000 ft to 24,000 ft
Remarks
during the climb ZDVWC-05
GLF4 at 25,000 ft, 18 nm north, 9:05 pm CDT (02:05 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 620 nm along the route, 18 nm north of the line.
as filed, and in English
```
DEN UA /OV FQF250040/TM 0205/FL250/TP GLF4/TB MOD /RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
40 nm west (250°) of FQF
Time
02:05 UTC
Height
at 25,000 ft
Aircraft
GLF4
Turbulence
moderate
Remarks
during the climb ZDVWC-05
C650 at 40,000 ft, 12 nm north, 6:48 pm CDT (23:48 UTC): moderate turbulence, remarks: ZDVWC-03. 680 nm along the route, 12 nm north of the line.
as filed, and in English
```
ASE UA /OV DBL/TM 2348/FL400/TP C650/TB MOD /RM ZDVWC-03
```
Report
a routine report filed through ASE
Where
over DBL
Time
23:48 UTC
Height
at 40,000 ft
Aircraft
C650
Turbulence
moderate
Remarks
ZDVWC-03
E75L at 28,000 ft, 47 nm north, 8:31 pm CDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. 690 nm along the route, 47 nm north of the line.
as filed, and in English
```
EEO UA /OV EKR085036/TM 0131/FL280/TP E75L/TB MOD/RM ZDVWC-03
```
Report
a routine report filed through EEO
Where
36 nm east (085°) of EKR
Time
01:31 UTC
Height
at 28,000 ft
Aircraft
E75L
Turbulence
moderate
Remarks
ZDVWC-03
E170 at 10,000 ft, 13 nm south, 6:41 pm CDT (23:41 UTC): moderate turbulence up to 10,000 ft, remarks: during the climb. 760 nm along the route, 13 nm south of the line.
as filed, and in English
```
GJT UA /OV GJT144009/TM 2341/FL100/TP E170/TB MOD SFC-100/RM DURC
```
Report
a routine report filed through GJT
Where
9 nm southeast (144°) of GJT
Time
23:41 UTC
Height
at 10,000 ft
Aircraft
E170
Turbulence
moderate from the surface to 10,000 ft
Remarks
during the climb
S22T at 14,000 ft, 47 nm north, 8:23 pm CDT (01:23 UTC): moderate rime icing, -16 °C. 860 nm along the route, 47 nm north of the line.
as filed, and in English
```
PUC UA /OV PUC360015/TM 0123/FL140/TP S22T/TA M16/IC MOD RIME /ZLC
```
Report
a routine report filed through PUC
Where
15 nm north (360°) of PUC
Time
01:23 UTC
Height
at 14,000 ft
Aircraft
S22T
Temperature
−16 °C
Icing
moderate rime zlc
A320 at 8,000 ft, 31 nm north, 6:42 pm CDT (23:42 UTC): light chop turbulence from 8,000 ft to 16,000 ft, remarks: during the climb. 550 nm along the route, 31 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN080030/TM 2342/FL080/TP A320/TB LGT CHOP 080-160/RM DURC
```
Report
a routine report filed through DEN
Where
30 nm east (080°) of DEN
Time
23:42 UTC
Height
at 8,000 ft
Aircraft
A320
Turbulence
light chop from 8,000 ft to 16,000 ft
Remarks
during the climb
B737 descending, 30 nm north, 8:23 pm CDT (01:23 UTC): no turbulence up to 10,000 ft. 580 nm along the route, 30 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0123/FLDURD/TP B737/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
01:23 UTC
Height
during the descent
Aircraft
B737
Turbulence
no below 10,000 ft
A321 descending, 30 nm north, 7:26 pm CDT (00:26 UTC): no turbulence up to 10,000 ft. 580 nm along the route, 30 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0026/FLDURD/TP A321/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
00:26 UTC
Height
during the descent
Aircraft
A321
Turbulence
no below 10,000 ft
B737 at 14,000 ft, 5 nm north, 7:20 pm CDT (00:20 UTC): light to moderate turbulence, remarks: light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft. 580 nm along the route, 5 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN170025/TM 0020/FL140/TP B737/TB LGT-MOD/RM LGT-MOD 140-160 OCCN LGT ABOVE 160
```
Report
a routine report filed through DEN
Where
25 nm south (170°) of DEN
Time
00:20 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
light to moderate
Remarks
light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft
B737 at 6,500 ft, 30 nm north, 6:27 pm CDT (23:27 UTC): no turbulence. 580 nm along the route, 30 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 2327/FL065/TP B737/TB NEG TB ON FINAL RWY17R
```
Report
a routine report filed through DEN
Where
over DEN
Time
23:27 UTC
Height
at 6,500 ft
Aircraft
B737
Turbulence
no turbulence on final runway 17R

9 more routine reports are on the map.

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 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 11 forecast points nearest it (COU, MKC, SLN, GLD, DEN, GJT, BCE, ELY, BIH, SAC, 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
4,500 ft	230° at 27 kt	+18 kt		102 kt	13 h 49 min	9:15 am PDT (16:15 UTC)
6,500 ft	240° at 24 kt	+19 kt	14 °C	101 kt	13 h 57 min	9:23 am PDT (16:23 UTC)
8,500 ft	230° at 24 kt	+18 kt	9 °C	102 kt	13 h 49 min	9:15 am PDT (16:15 UTC)
10,500 ft	230° at 23 kt	+18 kt	5 °C	102 kt	13 h 49 min	9:15 am PDT (16:15 UTC)
12,500 ft	230° at 23 kt	+19 kt	1 °C	101 kt	13 h 57 min	9:23 am PDT (16:23 UTC)
14,500 ft	230° at 25 kt	+20 kt	-3 °C	100 kt	14 h 05 min	9:31 am PDT (16:31 UTC)
16,500 ft	230° at 28 kt	+21 kt	-8 °C	99 kt	14 h 14 min	9:40 am PDT (16:40 UTC)
18,000 ft FL180	230° at 29 kt	+22 kt	-11 °C	98 kt	14 h 23 min	9:49 am PDT (16:49 UTC)
24,000 ft FL240	230° at 38 kt	+29 kt	-22 °C	91 kt	15 h 29 min	10:55 am PDT (17:55 UTC)
30,000 ft FL300	230° at 50 kt	+41 kt	-29 °C	79 kt	17 h 50 min	1:16 pm PDT (20:16 UTC)
34,000 ft FL340	240° at 53 kt	+46 kt	-36 °C	74 kt	19 h 02 min	2:28 pm PDT (21:28 UTC)
39,000 ft FL390	240° at 48 kt	+43 kt	-46 °C	77 kt	18 h 18 min	1:44 pm PDT (20:44 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
COU	used from 0 nm out; 25 nm from the line	230/31	230/30 15°	260/16 11°	270/14 6°	260/24 -6°	270/27 -18°	270/37 -32°	280/49 -41°	290/56 -51°
MKC	used from 50 nm out; 38 nm from the line	220/44	250/28 18°	250/18 13°	240/12 6°	280/24 -6°	240/34 -18°	260/47 -30°	260/51 -40°	270/58 -50°
SLN	used from 200 nm out; 37 nm from the line	210/53	230/41 20°	240/26 14°	230/16 8°	240/25 -7°	240/35 -19°	250/61 -30°	260/65 -38°	260/56 -49°
GLD	used from 350 nm out; 68 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
DEN	used from 500 nm out; 65 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
GJT	used from 650 nm out; 86 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°
BCE	used from 850 nm out; 97 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
ELY	used from 1000 nm out; 44 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°
BIH	used from 1150 nm out; 80 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°
SAC	used from 1300 nm out; 57 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°
SFO	used from 1399 nm out; 14 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
COU Columbia, MO	departure	VFR	from the south (190°) at 5 knots	10+ mi	none	889 ft	8:54 pm CDT (01:54 UTC)
MKC Kansas City, MO	110 nm out, 7 nm north of the line, tower	VFR	from the south (170°) at 10 knots	10+ mi	none	756 ft	01:54 UTC
TOP Topeka, KS	160 nm out, 1 nm south of the line, tower	VFR	from the south-southeast (160°) at 5 knots	10+ mi	none	881 ft	01:53 UTC
RCP Stockton, KS	330 nm out, 6 nm north of the line	no report just now				1,999 ft
ITR Burlington, CO	470 nm out, 4 nm south of the line	VFR	from the south (170°) at 11 knots	10+ mi	none	4,218 ft	01:53 UTC
ASE Aspen, CO	680 nm out, 4 nm southwest of the line, tower	VFR Sky: scattered clouds at 6,000 feet, overcast at 7,500 feet Weather: light rain	calm	10+ mi	7,500 ft	7,837 ft	01:53 UTC
GJT Grand Junction, CO	760 nm out, 4 nm south of the line, tower	VFR	from the southwest (220°) at 7 knots, gusting to 20	10+ mi	none	4,861 ft	01:53 UTC
FOM Fillmore, UT	940 nm out, 1 nm north of the line	marginal VFR Sky: scattered clouds at 900 feet, a broken layer at 1,300 feet, overcast at 3,300 feet Weather: light rain, mist	from the south (190°) at 8 knots	4 mi	1,300 ft	4,984 ft	02:15 UTC
HTH Hawthorne, NV	1230 nm out, 17 nm northwest of the line	VFR	from the north-northwest (340°) at 13 knots, gusting to 19	10+ mi	none	4,230 ft	02:15 UTC
SCK Stockton, CA	1360 nm out, 2 nm west of the line, tower	VFR Sky: scattered clouds at 9,000 feet	from the west-southwest (250°) at 8 knots	10+ mi	none	32 ft	01:55 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 7,837 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, 9:15 am PDT (16:15 UTC)

Wind from the east-southeast at 5 knots, visibility more than 6 miles, clear skies 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 COU, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 19 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 18 nm from the route, 600 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 18 nm from the route, 620 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 24 nm from the route, 1290 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 20 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at COU 6:35 pm CDT (23:35 UTC), at OAK 6:35 pm PDT (01:35 UTC) (civil twilight ends 7:02 pm PDT (02:02 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

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Columbia Regional, Oakland San Francisco Bay Airport.