Plan a flight · Mon 9:23 am PDT (16:23 UTC)

Charles M Schulz/Sonoma County to Boise Air Trml/Gowen Field STS → BOI

425 nautical miles (490 statute miles) northeast on a straight line, true course 042°, about 026° magnetic at the departure end (variation 16E). At 120 knots that is 3 h 10 min at the quickest height in today's winds (39,000 ft, a 14-knot tailwind), arriving about 1:33 pm MDT (19:33 UTC). Right now STS is VFR, wind from the north-northwest (340°) at 4 knots; BOI is VFR, wind from the northwest (320°) 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: 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 386 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 376 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 STS.

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

B738 at 31,000 ft, 36 nm southeast, 7:20 am PDT (14:20 UTC): moderate turbulence, remarks: entered by zoa fdcs. 119 nm along the route, 36 nm southeast of the line.
as filed, and in English
```
STS UA /OV SWR320025/TM 1420/FL310/TP B738/TB CONS MOD/RM ENTERED BY ZOA FDCS
```
Report
a routine report filed through STS
Where
25 nm northwest (320°) of SWR
Time
14:20 UTC
Height
at 31,000 ft
Aircraft
B738
Turbulence
continuous moderate
Remarks
entered by zoa fdcs
B789 at 39,000 ft, 36 nm south, 6:37 am PDT (13:37 UTC): light to moderate turbulence, remarks: entered by zoa fdcs. At the departure end, 36 nm south of the line.
as filed, and in English
```
STS UA /OV PYE218013/TM 1337/FL390/TP B789/TB LGT-MOD/RM ENTERED BY ZOA FDCS
```
Report
a routine report filed through STS
Where
13 nm southwest (218°) of PYE
Time
13:37 UTC
Height
at 39,000 ft
Aircraft
B789
Turbulence
light to moderate
Remarks
entered by zoa fdcs
E75L at 33,000 ft, 42 nm southeast, 7:27 am PDT (14:27 UTC): light turbulence, remarks: entered by zoa fdcs. 228 nm along the route, 42 nm southeast of the line.
as filed, and in English
```
STS UA /OV FMG012082/TM 1427/FL330/TP E75L/TB LGT/RM ENTERED BY ZOA FDCS
```
Report
a routine report filed through STS
Where
82 nm north (012°) of FMG
Time
14:27 UTC
Height
at 33,000 ft
Aircraft
E75L
Turbulence
light
Remarks
entered by zoa fdcs
B737 at 39,000 ft, 29 nm northwest, 7:16 am PDT (14:16 UTC): light to moderate turbulence. 376 nm along the route, 29 nm northwest of the line.
as filed, and in English
```
BOI UA /OV BOI240060/TM 1416/FL390/TP B737/TB OCNL LGT-MOD /ZLC
```
Report
a routine report filed through BOI
Where
60 nm southwest (240°) of BOI
Time
14:16 UTC
Height
at 39,000 ft
Aircraft
B737
Turbulence
occasional light to moderate zlc

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 5 forecast points nearest it (SAC, RBL, RNO, LKV, BOI). 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	350° at 8 kt	+5 kt	1 °C	115 kt	3 h 42 min	2:05 pm MDT (20:05 UTC)
7,500 ft	360° at 10 kt	+7 kt	-3 °C	113 kt	3 h 46 min	2:09 pm MDT (20:09 UTC)
9,500 ft	350° at 10 kt	+6 kt	-6 °C	114 kt	3 h 44 min	2:07 pm MDT (20:07 UTC)
11,500 ft	340° at 11 kt	+6 kt	-9 °C	114 kt	3 h 44 min	2:07 pm MDT (20:07 UTC)
13,500 ft	340° at 16 kt	+7 kt	-12 °C	113 kt	3 h 46 min	2:09 pm MDT (20:09 UTC)
15,500 ft	340° at 22 kt	+9 kt	-14 °C	111 kt	3 h 50 min	2:13 pm MDT (20:13 UTC)
17,500 ft	340° at 28 kt	+11 kt	-16 °C	109 kt	3 h 54 min	2:17 pm MDT (20:17 UTC)
18,000 ft FL180	340° at 29 kt	+12 kt	-17 °C	108 kt	3 h 56 min	2:19 pm MDT (20:19 UTC)
24,000 ft FL240	350° at 36 kt	+20 kt	-27 °C	100 kt	4 h 15 min	2:38 pm MDT (20:38 UTC)
30,000 ft FL300	330° at 36 kt	+13 kt	-36 °C	107 kt	3 h 58 min	2:21 pm MDT (20:21 UTC)
34,000 ft FL340	320° at 21 kt	+4 kt	-39 °C	116 kt	3 h 40 min	2:03 pm MDT (20:03 UTC)
39,000 ft FL390	250° at 17 kt	−14 kt	-43 °C	134 kt	3 h 10 min	1:33 pm MDT (19:33 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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
SAC	used from 0 nm out; 49 nm from the line	L/V	320/8 4°	330/12 -3°	350/25 -6°	350/63 -12°	340/65 -24°	340/60 -40°	340/45 -45°	290/24 -45°
RBL	used from 49 nm out; 50 nm from the line	350/16	350/11 4°	350/10 -2°	350/29 -6°	350/65 -13°	350/72 -25°	350/71 -41°	350/58 -46°	320/31 -45°
RNO	used from 148 nm out; 70 nm from the line		L/V	280/12 -4°	260/15 -10°	340/47 -17°	340/75 -25°	330/47 -37°	280/20 -40°	240/24 -42°
LKV	used from 198 nm out; 71 nm from the line			010/24 -9°	360/21 -13°	360/69 -18°	360/94 -25°	350/71 -37°	350/31 -38°	250/17 -41°
BOI	used from 297 nm out; 104 nm from the line		360/9 1°	L/V -5°	180/10 -12°	200/58 -21°	180/62 -31°	200/41 -31°	210/34 -32°	200/29 -41°

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
STS Santa Rosa, CA	departure	VFR	from the north-northwest (340°) at 4 knots	10+ mi	none	128 ft	8:53 am PDT (15:53 UTC)
OVE Oroville, CA	79 nm out, 2 nm east of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	194 ft	15:53 UTC
CIC Chico, CA	89 nm out, 20 nm northwest of the line, tower	VFR Sky: a few clouds at 10,000 feet	variable at 5 knots	10+ mi	none	240 ft	15:47 UTC
SVE Susanville, CA	148 nm out, 4 nm northeast of the line	VFR	calm	10+ mi	none	4,149 ft	16:15 UTC
REO Rome, OR	336 nm out, 9 nm west of the line	reported, no category	calm		none	4,053 ft	15:52 UTC
BOI Boise, ID	destination	VFR Sky: scattered clouds at 8,000 feet, overcast at 9,500 feet	from the northwest (320°) at 7 knots	10+ mi	9,500 ft	2,871 ft	9:53 am MDT (15:53 UTC)

The highest airport on this list sits at 4,149 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BOI when you get there the forecast at the estimated arrival, 1:33 pm MDT (19:33 UTC)

Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for BOI

From Mon 6:00 am MDT (12:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 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

The forecast for STS, the departure

From Mon 8:00 am PDT (15:00 UTC): wind calm, visibility 3 miles, mist, a few clouds at 100 feet, a few clouds at 1,700 feet
From Mon 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 2:00 pm PDT (21:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, clear skies
From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies

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

6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 12 nm from the route, 69 nm along the route · security · until 1 November · ZOA

Daylight

Sunset at STS 6:36 pm PDT (01:36 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 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 now, the Pacific Northwest · 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: Charles M Schulz/Sonoma County, Boise Air Trml/Gowen Field.