Plan a flight · Sun 9:34 pm MDT (03:34 UTC)

Boise Air Trml/Gowen Field to San Bernardino International BOI → SBD

570 nautical miles (656 statute miles) south on a straight line, true course 185°, about 172° magnetic at the departure end (variation 13E). At 120 knots that is 5 h 05 min at the quickest height in today's winds (5,500 ft, a 8-knot headwind), arriving about 1:39 am PDT (08:39 UTC), after sunset at the destination. Right now BOI is VFR, wind variable at 3 knots; SBD 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: 351 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 W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 10:55 pm MDT (04:55 UTC). Over the route from 157 to 334 nm out.
as issued
```
WSUS33 KKCI 120255
MKCW WST 120255
CONVECTIVE SIGMET 12W
VALID UNTIL 0455Z
NV
FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF
AREA TS MOV FROM 24020KT. TOPS TO FL310.
```
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 305 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 207 to 315 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the last 285 nm of the route.
AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 423 to 452 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 BOI.

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

B38M at 14,000 ft, 12 nm east, 6:13 pm MDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. At the destination end, 12 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
```
Report
a routine report filed through ONT
Where
34 nm northeast (053°) of ONT
Time
00:13 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
8 °C
Turbulence
moderate turbulence
Icing
light rime ice at 19,000 ft at 17,000 ft
PC12 at 14,000 ft, 40 nm east, 8:13 pm MDT (02:13 UTC): light turbulence up to 21,000 ft, light rime icing from 10,000 ft to 14,000 ft, -10 °C. 30 nm along the route, 40 nm east of the line.
as filed, and in English
```
BOI UA /OV BOI117049/TM 0213/FL140/TP PC12/TA M10/TB CONS LGT 210 BLO/IC LGT RIME 140-100 /ZLC
```
Report
a routine report filed through BOI
Where
49 nm southeast (117°) of BOI
Time
02:13 UTC
Height
at 14,000 ft
Aircraft
PC12
Temperature
−10 °C
Turbulence
continuous light at 21,000 ft below
Icing
light rime from 14,000 ft to 10,000 ft zlc
E75L climbing, 45 nm west, 8:15 pm MDT (02:15 UTC): a routine report with nothing remarked on. At the destination end, 45 nm west of the line.
as filed, and in English
```
ONT UA /OV ONT290030/TM 0215/FLDURC/TP E75L/SK T-078
```
Report
a routine report filed through ONT
Where
30 nm west (290°) of ONT
Time
02:15 UTC
Height
during the climb
Aircraft
E75L
Sky
T-078
A20N climbing, 21 nm west, 9:03 pm MDT (03:03 UTC): a routine report with nothing remarked on. At the destination end, 21 nm west of the line.
as filed, and in English
```
ONT UA /OV ONT204003/TM 0303/FLDURC/TP A20N/SK B-030
```
Report
a routine report filed through ONT
Where
3 nm southwest (204°) of ONT
Time
03:03 UTC
Height
during the climb
Aircraft
A20N
Sky
B-030
B737 climbing, 33 nm west, 9:01 pm MDT (03:01 UTC): a routine report with nothing remarked on. At the destination end, 33 nm west of the line.
as filed, and in English
```
ONT UA /OV ONT278016/TM 0301/FLDURC/TP B737/SK B-047 -T080
```
Report
a routine report filed through ONT
Where
16 nm west (278°) of ONT
Time
03:01 UTC
Height
during the climb
Aircraft
B737
Sky
B-047 T080
E75L climbing, 40 nm east, 8:36 pm MDT (02:36 UTC): light to moderate chop turbulence. At the destination end, 40 nm east of the line.
as filed, and in English
```
PSP UA /OV PSP347010/TM 0236/FLDURC/TP E75L/TB LT TO MOD CHOP IN CLIMB
```
Report
a routine report filed through PSP
Where
10 nm north (347°) of PSP
Time
02:36 UTC
Height
during the climb
Aircraft
E75L
Turbulence
lt to moderate chop in climb
SLG4 at 3,000 ft, 34 nm west, 7:33 pm MDT (01:33 UTC): scattered clouds above 4,000 ft. At the destination end, 34 nm west of the line.
as filed, and in English
```
EMT UA /OV EMT070006/TM 0133/FL030/TP SLG4/SK SCT040
```
Report
a routine report filed through EMT
Where
6 nm east (070°) of EMT
Time
01:33 UTC
Height
at 3,000 ft
Aircraft
SLG4
Sky
scattered clouds from 4,000 ft
B737 at 6,400 ft, 49 nm west, 7:30 pm MDT (01:30 UTC): a broken layer from 3,300 ft to 6,400 ft. At the destination end, 49 nm west of the line.
as filed, and in English
```
LGB UA /OV LGB/TM 0130/FL064/TP B737/SK BKN033-TOP064
```
Report
a routine report filed through LGB
Where
over LGB
Time
01:30 UTC
Height
at 6,400 ft
Aircraft
B737
Sky
a broken layer from 3,300 ft, tops 6,400 ft
A21N at 2,000 ft, 31 nm west, 7:06 pm MDT (01:06 UTC): remarks: ils 25L haze below the ceiling. At the destination end, 31 nm west of the line.
as filed, and in English
```
LAX UA /OV LAX070030/TM 0106/FL020/TP A21N/SK TOPS068 BASES040/RM ILS 25L - HZ BELOW THE CEILING
```
Report
a routine report filed through LAX
Where
30 nm east (070°) of LAX
Time
01:06 UTC
Height
at 2,000 ft
Aircraft
A21N
Sky
TOPS068 BASES040
Remarks
ils 25L haze below the ceiling
A20N at 5,300 ft, 40 nm southwest, 7:00 pm MDT (01:00 UTC): a broken layer from 4,300 ft to 5,300 ft. At the destination end, 40 nm southwest of the line.
as filed, and in English
```
SNA UA /OV SNA/TM 0100/FL053/TP A20N/SK BKN043-TOP053
```
Report
a routine report filed through SNA
Where
over SNA
Time
01:00 UTC
Height
at 5,300 ft
Aircraft
A20N
Sky
a broken layer from 4,300 ft, tops 5,300 ft

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 6 forecast points nearest it (BOI, BAM, ELY, BIH, WJF, ONT). 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	210° at 9 kt	+8 kt	4 °C	112 kt	5 h 05 min	1:39 am PDT (08:39 UTC)
7,500 ft	220° at 10 kt	+8 kt	1 °C	112 kt	5 h 05 min	1:39 am PDT (08:39 UTC)
9,500 ft	220° at 12 kt	+10 kt	0 °C	110 kt	5 h 11 min	1:45 am PDT (08:45 UTC)
11,500 ft	220° at 16 kt	+13 kt	-4 °C	107 kt	5 h 20 min	1:54 am PDT (08:54 UTC)
13,500 ft	210° at 22 kt	+20 kt	-8 °C	100 kt	5 h 42 min	2:16 am PDT (09:16 UTC)
15,500 ft	210° at 29 kt	+27 kt	-12 °C	93 kt	6 h 08 min	2:42 am PDT (09:42 UTC)
17,500 ft	210° at 36 kt	+34 kt	-15 °C	86 kt	6 h 38 min	3:12 am PDT (10:12 UTC)
18,000 ft FL180	210° at 38 kt	+35 kt	-16 °C	85 kt	6 h 42 min	3:16 am PDT (10:16 UTC)
24,000 ft FL240	210° at 50 kt	+46 kt	-25 °C	74 kt	7 h 42 min	4:16 am PDT (11:16 UTC)
30,000 ft FL300	220° at 58 kt	+49 kt	-29 °C	71 kt	8 h 02 min	4:36 am PDT (11:36 UTC)
34,000 ft FL340	220° at 56 kt	+47 kt	-34 °C	73 kt	7 h 48 min	4:22 am PDT (11:22 UTC)
39,000 ft FL390	220° at 51 kt	+40 kt	-42 °C	80 kt	7 h 08 min	3:42 am PDT (10:42 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
BOI	used from 0 nm out; 25 nm from the line		300/7 2°	280/5 -4°	210/16 -9°	210/60 -20°	210/75 -29°	210/63 -32°	220/64 -32°	220/54 -39°
BAM	used from 98 nm out; 59 nm from the line			310/7 0°	270/19 -7°	200/38 -17°	190/49 -28°	220/69 -29°	220/63 -33°	230/48 -41°
ELY	used from 246 nm out; 89 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 295 nm out; 90 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°
WJF	used from 443 nm out; 85 nm from the line		200/28 6°	210/28 3°	210/29 -4°	210/28 -14°	220/41 -20°	220/47 -29°	220/46 -37°	220/53 -44°
ONT	used from 541 nm out; 26 nm from the line	190/8	190/19 6°	210/23 4°	210/29 -3°	210/47 -13°	210/49 -19°	220/47 -30°	220/50 -36°	220/55 -43°

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
BOI Boise, ID	departure	VFR	variable at 3 knots	10+ mi	none	2,871 ft	8:53 pm MDT (02:53 UTC)
BAM Battle Mountain, NV	177 nm out, 14 nm west of the line	VFR Sky: overcast at 6,500 feet	from the northwest (320°) at 17 knots, gusting to 22	10+ mi	6,500 ft	4,536 ft	02:55 UTC
TMT Austin, NV	246 nm out, 23 nm west of the line	VFR Sky: a broken layer at 4,400 feet, overcast at 5,000 feet Weather: light rain	from the north (350°) at 4 knots	10+ mi	4,400 ft	5,735 ft	02:55 UTC
TPH Tonopah, NV	334 nm out, 12 nm west of the line	VFR	from the south-southeast (160°) at 16 knots, gusting to 26	10+ mi	none	5,430 ft	02:56 UTC
BTY Beatty, NV	403 nm out, 9 nm east of the line	no report just now				3,169 ft
VCV Victorville, CA	541 nm out, 10 nm west of the line, tower	VFR	from the south (180°) at 18 knots, gusting to 27	10+ mi	none	2,885 ft	02:55 UTC
SBD San Bernardino, CA	destination	VFR Sky: scattered clouds at 1,800 feet, a broken layer at 3,100 feet, overcast at 3,800 feet	calm	10+ mi	3,100 ft	1,159 ft	7:55 pm PDT (02:55 UTC)

The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SBD when you get there the forecast at the estimated arrival, 1:39 am PDT (08:39 UTC)

Wind from the south at 5 knots, visibility more than 6 miles, showers nearby, a broken layer at 2,500 feet, a broken layer at 4,000 feet marginal VFR

The whole forecast for SBD

From Sun 5:00 pm PDT (00:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, overcast at 5,000 feet
From Mon 12:00 am PDT (07:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, showers nearby, a broken layer at 2,500 feet, a broken layer at 4,000 feet
From Mon 10:00 am PDT (17:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet

The forecast for BOI, the departure

From Sun 7:00 pm MDT (01:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, showers nearby, scattered clouds at 5,000 feet, overcast at 7,000 feet
At times between Sun 7:00 pm MDT (01:00 UTC) and 10:00 pm MDT (04:00 UTC): wind variable at 10 knots, light rain showers, overcast at 5,000 feet
From Mon 12:00 am MDT (06:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a broken layer at 8,000 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet

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 BOI 7:06 pm MDT (01:06 UTC), at SBD 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:43 pm PDT (01:43 UTC)). At 120 knots the arrival at SBD is before sunrise there (6:51 am PDT (13:51 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 Northwest · loop National Weather Service

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: Boise Air Trml/Gowen Field, San Bernardino International.