Plan a flight · Mon 9:21 am MDT (15:21 UTC)

Friedman Memorial to Napa County SUN → APC

482 nautical miles (554 statute miles) southwest on a straight line, true course 231°, about 218° magnetic at the departure end (variation 13E). At 120 knots that is 3 h 57 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 12:18 pm PDT (19:18 UTC). Right now SUN is IFR, wind from the southeast (130°) at 8 knots; APC is VFR, wind from the north-northwest (340°) at 4 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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 20 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 49 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 167 nm of the route.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 59 to 59 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 324 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 SUN.

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

B739 at 27,000 ft, 19 nm southeast, 6:56 am MDT (12:56 UTC): moderate chop turbulence. 79 nm along the route, 19 nm southeast of the line.
as filed, and in English
```
TWF UA /OV TWF247042/TM 1256/FL270/TP B739/TB MOD CHOP/ZLC
```
Report
a routine report filed through TWF
Where
42 nm southwest (247°) of TWF
Time
12:56 UTC
Height
at 27,000 ft
Aircraft
B739
Turbulence
moderate chop/zlc
B738 at 31,000 ft, 2 nm west, 8:20 am MDT (14:20 UTC): moderate turbulence, remarks: entered by zoa fdcs. 364 nm along the route, 2 nm west 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
E75 at 7,000 ft, 0 nm northwest, 9:17 am MDT (15:17 UTC): a routine report with nothing remarked on. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1517/FL070/TP E75/SK BASE 057/ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
15:17 UTC
Height
at 7,000 ft
Aircraft
E75
Sky
base 5,700 ft; zlc
MU2 at 12,000 ft, 0 nm northwest, 8:07 am MDT (14:07 UTC): a routine report with nothing remarked on. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1407/FL120/TP MU2/SK BASE 055 TOP 118 /ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
MU2
Sky
base 5,500 ft top 11,800 ft; zlc
E75L at 33,000 ft, 5 nm northeast, 8:27 am MDT (14:27 UTC): light turbulence, remarks: entered by zoa fdcs. 265 nm along the route, 5 nm northeast 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
B738 at 14,000 ft, 44 nm southeast, 6:38 am MDT (12:38 UTC): light icing, -2 °C. 344 nm along the route, 44 nm southeast of the line.
as filed, and in English
```
RNO UA /OV RNO130020/TM 1238/FL140/TP B738/TA M02/IC LGT RM
```
Report
a routine report filed through RNO
Where
20 nm southeast (130°) of RNO
Time
12:38 UTC
Height
at 14,000 ft
Aircraft
B738
Temperature
−2 °C
Icing
light remarks
B38M at 11,000 ft, 39 nm southeast, 6:30 am MDT (12:30 UTC): light rime icing, -1 °C, remarks: from 11,000 ft to 14,000 ft rno dept southeast bound entered by zoa fdcs. 344 nm along the route, 39 nm southeast of the line.
as filed, and in English
```
RNO UA /OV 3917N11935W/TM 1230/FL110/TP B38M/SK UNKN/TA M01/IC LGT RIME/RM 110-140 RNO DEPT SE BOUND ENTERED BY ZOA FDCS
```
Report
a routine report filed through RNO
Where
3917N11935W
Time
12:30 UTC
Height
at 11,000 ft
Aircraft
B38M
Sky
unknown
Temperature
−1 °C
Icing
light rime
Remarks
from 11,000 ft to 14,000 ft rno dept southeast bound entered by zoa fdcs
B739 at 36,000 ft, 48 nm southeast, 8:39 am MDT (14:39 UTC): no turbulence. 462 nm along the route, 48 nm southeast of the line.
as filed, and in English
```
IND UA /OV SCK/TM 1439/FL360/TP B739/TB NEG
```
Report
a routine report filed through IND
Where
over SCK
Time
14:39 UTC
Height
at 36,000 ft
Aircraft
B739
Turbulence
none
B789 at 39,000 ft, 41 nm west, 7:37 am MDT (13:37 UTC): light to moderate turbulence, remarks: entered by zoa fdcs. At the destination end, 41 nm west 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

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 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 4 forecast points nearest it (BOI, BAM, RNO, SAC). 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	350° at 4 kt	−2 kt	1 °C	122 kt	3 h 57 min	12:18 pm PDT (19:18 UTC)
6,500 ft	340° at 5 kt	−2 kt	1 °C	122 kt	3 h 57 min	12:18 pm PDT (19:18 UTC)
8,500 ft	300° at 6 kt	+2 kt	-3 °C	118 kt	4 h 05 min	12:26 pm PDT (19:26 UTC)
10,500 ft	280° at 8 kt	+5 kt	-7 °C	115 kt	4 h 11 min	12:32 pm PDT (19:32 UTC)
12,500 ft	270° at 10 kt	+7 kt	-11 °C	113 kt	4 h 16 min	12:37 pm PDT (19:37 UTC)
14,500 ft	270° at 12 kt	+8 kt	-13 °C	112 kt	4 h 18 min	12:39 pm PDT (19:39 UTC)
16,500 ft	270° at 13 kt	+10 kt	-16 °C	110 kt	4 h 23 min	12:44 pm PDT (19:44 UTC)
18,000 ft FL180	270° at 15 kt	+10 kt	-18 °C	110 kt	4 h 23 min	12:44 pm PDT (19:44 UTC)
24,000 ft FL240	280° at 16 kt	+8 kt	-27 °C	112 kt	4 h 18 min	12:39 pm PDT (19:39 UTC)
30,000 ft FL300	280° at 20 kt	+11 kt	-34 °C	109 kt	4 h 25 min	12:46 pm PDT (19:46 UTC)
34,000 ft FL340	250° at 20 kt	+18 kt	-37 °C	102 kt	4 h 44 min	1:05 pm PDT (20:05 UTC)
39,000 ft FL390	230° at 24 kt	+24 kt	-42 °C	96 kt	5 h 01 min	1:22 pm PDT (20:22 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
BOI	used from 0 nm out; 68 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°
BAM	used from 147 nm out; 67 nm from the line			270/8 -4°	260/21 -11°	190/44 -21°	200/54 -28°	210/38 -31°	220/38 -35°	210/35 -41°
RNO	used from 246 nm out; 77 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°
SAC	used from 393 nm out; 28 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°

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
SUN Hailey, ID	departure	IFR Sky: overcast at 700 feet	from the southeast (130°) at 8 knots	7 mi	700 ft	5,319 ft	8:50 am MDT (14:50 UTC)
GNG Gooding, ID	39 nm out, 15 nm southeast of the line	VFR Sky: a broken layer at 7,500 feet	from the southwest (230°) at 6 knots	10+ mi	7,500 ft	3,732 ft	15:15 UTC
WMC Winnemucca, NV	216 nm out, 21 nm southeast of the line	VFR Sky: overcast at 8,500 feet	from the west-northwest (300°) at 7 knots	10+ mi	8,500 ft	4,307 ft	14:56 UTC
TRK Truckee, CA	364 nm out, 20 nm southeast of the line, tower	VFR Sky: scattered clouds at 4,500 feet	calm	10+ mi	none	5,904 ft	14:47 UTC
MHR Sacramento, CA	433 nm out, 17 nm southeast of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	98 ft	08:15 UTC
SMF Sacramento, CA	442 nm out, 4 nm northeast of the line, tower	VFR Sky: a few clouds at 11,000 feet	from the west-northwest (300°) at 5 knots	10+ mi	none	26 ft	14:53 UTC
APC Napa, CA	destination	VFR	from the north-northwest (340°) at 4 knots	10+ mi	none	35 ft	7:54 am PDT (14:54 UTC)

The highest airport on this list sits at 5,904 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At APC when you get there the forecast at the estimated arrival, 12:18 pm PDT (19:18 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for APC

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, clear skies

The forecast for SUN, the departure

From Mon 6:00 am MDT (12:00 UTC): wind light and variable, visibility 6 miles, light rain showers, a broken layer at 400 feet, overcast at 2,000 feet
From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, showers nearby, a few clouds at 1,200 feet, scattered clouds at 2,500 feet and more above
From Mon 10:00 pm MDT (04:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, a broken layer at 5,000 feet and more above

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 3 nm from the route, 413 nm along the route · security · until 1 November · ZOA

Daylight

Sunset at SUN 6:57 pm MDT (00:57 UTC), at APC 6:34 pm PDT (01:34 UTC) (civil twilight ends 7:00 pm PDT (02:00 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: Friedman Memorial, Napa County.