Plan a flight · Mon 7:03 am PDT (14:03 UTC)

Mammoth Yosemite Airport to Santa Monica Municipal MMH → SMO

217 nautical miles (250 statute miles) south on a straight line, true course 175°, about 160° magnetic at the departure end (variation 15E). At 120 knots that is 2 h 01 min at the quickest height in today's winds (11,500 ft, a 12-knot headwind), arriving about 9:04 am PDT (16:04 UTC). Right now MMH is VFR, wind from the west (280°) at 7 knots; SMO is VFR, wind calm. 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 198 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 178 nm of the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Near the route, 109 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 MMH.

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

B737 at 13,000 ft, 50 nm east, 7:00 am PDT (14:00 UTC): moderate turbulence, remarks: dur desct from 13,000 ft to 11,000 ft. 198 nm along the route, 50 nm east of the line.
as filed, and in English
```
ONT UA /OV 25N ONT/TM 1400/FL130/TP B737/TB MOD TURB/RM DUR DESCT 130-110
```
Report
a routine report filed through ONT
Where
25N ont
Time
14:00 UTC
Height
at 13,000 ft
Aircraft
B737
Turbulence
moderate turbulence
Remarks
dur desct from 13,000 ft to 11,000 ft
B737 at 8,500 ft, 5 nm south, 6:58 am PDT (13:58 UTC): moderate turbulence above 8,500 ft. At the destination end, 5 nm south of the line.
as filed, and in English
```
LAX UA /OV 8 SW OF LAX/TM 1358/FL085/TP B737/TB MOD TURB 085
```
Report
a routine report filed through LAX
Where
8 southwest of lax
Time
13:58 UTC
Height
at 8,500 ft
Aircraft
B737
Turbulence
moderate turbulence at 8,500 ft
A21N at 8,000 ft, 5 nm south, 6:30 am PDT (13:30 UTC): moderate turbulence. At the destination end, 5 nm south of the line.
as filed, and in English
```
LAX UA /OV LAX/TM 1330/FL080/TP A21N/TB MODERATE
```
Report
a routine report filed through LAX
Where
over LAX
Time
13:30 UTC
Height
at 8,000 ft
Aircraft
A21N
Turbulence
moderate
B737 at 15,000 ft, 42 nm northwest, 5:12 am PDT (12:12 UTC): light chop turbulence, remarks: continuous light turbulence occasional moderate chop entered by zoa fdcs. At the departure end, 42 nm northwest of the line.
as filed, and in English
```
FAT UA /OV FMG150080/TM 1212/FL150/TP B737/TB LGT/RM CONS LGT TURB OCNL MOD CHOP ENTERED BY ZOA FDCS
```
Report
a routine report filed through FAT
Where
80 nm southeast (150°) of FMG
Time
12:12 UTC
Height
at 15,000 ft
Aircraft
B737
Turbulence
light
Remarks
continuous light turbulence occasional moderate chop entered by zoa fdcs
B350 at 8,000 ft, 23 nm east, 6:50 am PDT (13:50 UTC): a broken layer from 3,000 ft to 8,000 ft. 178 nm along the route, 23 nm east of the line.
as filed, and in English
```
EDW UA /OV PMD/TM 1350/FL080/TP B350/SK BKN030-TOP080
```
Report
a routine report filed through EDW
Where
over PMD
Time
13:50 UTC
Height
at 8,000 ft
Aircraft
B350
Sky
a broken layer from 3,000 ft, tops 8,000 ft
GA8C at 8,500 ft, 6 nm southeast, 6:55 am PDT (13:55 UTC): overcast above 8,500 ft. 198 nm along the route, 6 nm southeast of the line.
as filed, and in English
```
BUR UA /OV 5NW BUR/TM 1355/FL085/TP GA8C/SK OVC085
```
Report
a routine report filed through BUR
Where
5NW bur
Time
13:55 UTC
Height
at 8,500 ft
Aircraft
GA8C
Sky
overcast from 8,500 ft
C700 at 8,600 ft, 6 nm southeast, 6:27 am PDT (13:27 UTC): overcast above 8,600 ft. 198 nm along the route, 6 nm southeast of the line.
as filed, and in English
```
BUR UA /OV 5 NW BUR/TM 1327/FL086/TP C700/SK OVC086
```
Report
a routine report filed through BUR
Where
5 northwest bur
Time
13:27 UTC
Height
at 8,600 ft
Aircraft
C700
Sky
overcast from 8,600 ft
A321 at 2,900 ft, 5 nm southeast, 6:09 am PDT (13:09 UTC): a broken layer above 2,900 ft. At the destination end, 5 nm southeast of the line.
as filed, and in English
```
KLAX UA /OV KLAX/TM 1309/FL029/TP A321/SK BKN029
```
Report
a routine report filed through KLAX
Where
over KLAX
Time
13:09 UTC
Height
at 2,900 ft
Aircraft
A321
Sky
a broken layer from 2,900 ft
B763 at 2,800 ft, 48 nm east, 5:05 am PDT (12:05 UTC): overcast from 1,500 ft to 6,000 ft, remarks: during the descent runway 26R. At the destination end, 48 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT080006/TM 1205/FL028/TP B763/SK OVC015-TOP060/RM DURD RY26R
```
Report
a routine report filed through ONT
Where
6 nm east (080°) of ONT
Time
12:05 UTC
Height
at 2,800 ft
Aircraft
B763
Sky
overcast from 1,500 ft, tops 6,000 ft
Remarks
during the descent runway 26R
A333 descending, 42 nm east, 4:05 am PDT (11:05 UTC): overcast from 1,500 ft to 7,000 ft, remarks: during the descent runway 26R. At the destination end, 42 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT080/TM 1105/FLUNKN/TP A333/SK OVC015 - TOP070/RM DURD RY26R
```
Report
a routine report filed through ONT
Where
ONT080
Time
11:05 UTC
Height
height not given
Aircraft
A333
Sky
overcast from 1,500 ft, tops 7,000 ft
Remarks
during the descent runway 26R

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 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 (BIH, FAT, WJF). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	200° at 17 kt	+15 kt	4 °C	105 kt	2 h 04 min	9:07 am PDT (16:07 UTC)
7,500 ft	200° at 16 kt	+15 kt	2 °C	105 kt	2 h 04 min	9:07 am PDT (16:07 UTC)
9,500 ft	200° at 16 kt	+14 kt	-1 °C	106 kt	2 h 03 min	9:06 am PDT (16:06 UTC)
11,500 ft	220° at 16 kt	+12 kt	-4 °C	108 kt	2 h 01 min	9:04 am PDT (16:04 UTC)
13,500 ft	220° at 18 kt	+12 kt	-7 °C	108 kt	2 h 01 min	9:04 am PDT (16:04 UTC)
15,500 ft	230° at 21 kt	+13 kt	-10 °C	107 kt	2 h 02 min	9:05 am PDT (16:05 UTC)
17,500 ft	230° at 25 kt	+14 kt	-13 °C	106 kt	2 h 03 min	9:06 am PDT (16:06 UTC)
18,000 ft FL180	230° at 25 kt	+14 kt	-14 °C	106 kt	2 h 03 min	9:06 am PDT (16:06 UTC)
24,000 ft FL240	230° at 33 kt	+18 kt	-24 °C	102 kt	2 h 08 min	9:11 am PDT (16:11 UTC)
30,000 ft FL300	220° at 44 kt	+28 kt	-30 °C	92 kt	2 h 22 min	9:25 am PDT (16:25 UTC)
34,000 ft FL340	220° at 54 kt	+36 kt	-37 °C	84 kt	2 h 35 min	9:38 am PDT (16:38 UTC)
39,000 ft FL390	220° at 51 kt	+35 kt	-44 °C	85 kt	2 h 33 min	9:36 am PDT (16:36 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
BIH	used from 0 nm out; 23 nm from the line		L/V	020/6 0°	140/7 -7°	210/31 -16°	230/34 -26°	220/43 -30°	220/52 -36°	220/46 -43°
FAT	used from 49 nm out; 54 nm from the line	140/11	180/15 3°	150/14 -3°	200/14 -6°	240/17 -16°	320/25 -23°	270/22 -31°	240/29 -37°	230/36 -44°
WJF	used from 99 nm out; 54 nm from the line		210/26 4°	210/28 2°	230/23 -4°	240/28 -13°	220/47 -23°	220/57 -30°	220/65 -37°	220/59 -45°

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
MMH Mammoth Lakes, CA	departure	VFR Sky: a broken layer at 3,400 feet	from the west (280°) at 7 knots	10+ mi	3,400 ft	7,134 ft	6:55 am PDT (13:55 UTC)
BIH Bishop, CA	20 nm out, 21 nm east of the line	VFR Sky: a broken layer at 6,000 feet, a broken layer at 7,000 feet, overcast at 9,000 feet	from the south (170°) at 7 knots	10+ mi	6,000 ft	4,124 ft	13:56 UTC
BFL Bakersfield, CA	128 nm out, 22 nm west of the line, tower	VFR Sky: scattered clouds at 7,000 feet, a broken layer at 8,500 feet	from the northwest (320°) at 5 knots	10+ mi	8,500 ft	509 ft	13:54 UTC
MHV Mojave, CA	158 nm out, 20 nm east of the line, tower	VFR Sky: a few clouds at 2,900 feet, overcast at 3,800 feet	from the southwest (230°) at 9 knots	10+ mi	3,800 ft	2,801 ft	08:15 UTC
WJF Lancaster, CA	178 nm out, 15 nm east of the line, tower	VFR Sky: scattered clouds at 4,000 feet, overcast at 5,000 feet	from the south (190°) at 8 knots	10+ mi	5,000 ft	2,350 ft	13:56 UTC
SMO Santa Monica, CA	destination	VFR Sky: overcast at 6,500 feet	calm	10+ mi	6,500 ft	169 ft	6:51 am PDT (13:51 UTC)

The highest airport on this list sits at 7,134 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SMO when you get there the forecast at the estimated arrival, 9:04 am PDT (16:04 UTC)

Wind light and variable, visibility more than 6 miles, a broken layer at 3,500 feet VFR

The whole forecast for SMO

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 3,500 feet
At times between Mon 5:00 am PDT (12:00 UTC) and 9:00 am PDT (16:00 UTC): visibility 6 miles, light rain
From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for MMH, the departure

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 7,000 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southeast at 9 knots, visibility 6 miles, light rain showers, a broken layer at 4,000 feet
From Mon 2:00 pm PDT (21:00 UTC): wind from the west-northwest at 10 knots, visibility 6 miles, light rain showers, overcast at 4,000 feet
From Mon 9:00 pm PDT (04:00 UTC): wind from the west-northwest at 11 knots, visibility 6 miles, light showers rain snow, a broken layer at 3,000 feet

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

6/8783 38NM NE BAKERSFIELD, CA, Saturday, October 10, 2026 through Friday, October 23, 2026 UTC 10 nm from the route, 119 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 23 October · ZLA

Daylight

Sunset at MMH 6:21 pm PDT (01:21 UTC), at SMO 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:47 pm PDT (01:47 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 Pacific Southwest · 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: Mammoth Yosemite Airport, Santa Monica Municipal.