Plan a flight · Sun 7:37 pm PDT (02:37 UTC)

Napa County to Martha'S Vineyard Airport APC → MVY

2,355 nautical miles (2,711 statute miles) east on a straight line, true course 069°, about 054° magnetic at the departure end (variation 15E). At 120 knots that is 13 h 56 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 12:33 pm EDT (16:33 UTC). Right now APC is VFR, wind from the south (180°) at 11 knots; MVY is marginal VFR, wind from the east (080°) at 16 knots, gusting to 21. 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

SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 250 to 369 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.
```

SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 768 to 848 nm out.

as issued

WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 8W
VALID UNTIL 0355Z
CO MT WY
FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR
AREA TS MOV FROM 22040KT. TOPS TO FL350.

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 60 nm of the route.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Near the route, 110 nm along the route.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 180 to 699 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 190 to 928 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 259 to 709 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 349 to 868 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 509 to 539 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 579 to 798 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 629 to 729 nm out.
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 1258 to 1397 nm out.
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 579 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 1966 to 2216 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 2016 to 2196 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 240 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the route from 2126 to 2156 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 APC.

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

A320 at 33,000 ft, 39 nm south, 5:36 pm PDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 1707 nm along the route, 39 nm south of the line.
as filed, and in English
```
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
```
Report
a routine report filed through JXN
Where
30 nm west (280°) of JXN
Time
00:36 UTC
Height
at 33,000 ft
Aircraft
A320
Turbulence
occasional moderate at 33,000 ft
Remarks
zob
E75S at 10,000 ft, 8 nm north, 4:53 pm PDT (23:53 UTC): moderate clear-air turbulence. 2216 nm along the route, 8 nm north of the line.
as filed, and in English
```
POU UA /OV PWL350015/TM 2353/FL100/TP E75S/TB MOD CAT
```
Report
a routine report filed through POU
Where
15 nm north (350°) of PWL
Time
23:53 UTC
Height
at 10,000 ft
Aircraft
E75S
Turbulence
moderate clear-air turbulence
E75S at 16,000 ft, 2 nm west, 5:28 pm PDT (00:28 UTC): moderate chop turbulence. 2246 nm along the route, 2 nm west of the line.
as filed, and in English
```
POU UA /OV PWL100025/TM 0028/FL160/TP E75S/TB MOD CHOP
```
Report
a routine report filed through POU
Where
25 nm east (100°) of PWL
Time
00:28 UTC
Height
at 16,000 ft
Aircraft
E75S
Turbulence
moderate chop
BCS3 at 4,000 ft, 47 nm south, 5:42 pm PDT (00:42 UTC): moderate turbulence, imc. 2256 nm along the route, 47 nm south of the line.
as filed, and in English
```
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
```
Report
a routine report filed through BDR
Where
10 nm south (180°) of BDR
Time
00:42 UTC
Height
at 4,000 ft
Aircraft
BCS3
Weather
instrument conditions
Turbulence
moderate
GLF4 at 10,000 ft, 37 nm north, 6:03 pm PDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. At the destination end, 37 nm north of the line.
as filed, and in English
```
BDL UA /OV CEF060010/TM 0103/FL100/TP GLF4/WX -RA/TB MOD 100/RM IMC
```
Report
a routine report filed through BDL
Where
10 nm northeast (060°) of CEF
Time
01:03 UTC
Height
at 10,000 ft
Aircraft
GLF4
Weather
light rain
Turbulence
moderate at 10,000 ft
Remarks
instrument conditions
PC12 at 10,000 ft, 2 nm west, 4:53 pm PDT (23:53 UTC): moderate turbulence. At the destination end, 2 nm west of the line.
as filed, and in English
```
BDL UA /OV HFD100017/TM 2353/FL100/TP PC12/TB MOD
```
Report
a routine report filed through BDL
Where
17 nm east (100°) of HFD
Time
23:53 UTC
Height
at 10,000 ft
Aircraft
PC12
Turbulence
moderate
BCS3 at 12,000 ft, 33 nm north, 5:11 pm PDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. At the destination end, 33 nm north of the line.
as filed, and in English
```
BOS UA /OV BOS200020/TM 0011/FL120/TP BCS3/WX RA+/TB MOD/RM SSOXS DEPT 120-160
```
Report
a routine report filed through BOS
Where
20 nm south (200°) of BOS
Time
00:11 UTC
Height
at 12,000 ft
Aircraft
BCS3
Weather
ra+
Turbulence
moderate
Remarks
ssoxs dept from 12,000 ft to 16,000 ft
BCS3 at 18,000 ft, 13 nm north, 5:17 pm PDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. At the destination end, 13 nm north of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:17 UTC
Height
at 18,000 ft
Aircraft
BCS3
Turbulence
moderate chop
Remarks
moderate CHOP180-210 smooth above 22,000 ft
A321 at 5,000 ft, 42 nm north, 5:46 pm PDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the destination end, 42 nm north of the line.
as filed, and in English
```
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
```
Report
a routine report filed through BOS
Where
20 nm southeast (150°) of BOS
Time
00:46 UTC
Height
at 5,000 ft
Aircraft
A321
Turbulence
moderate from 15,000 ft to 5,000 ft
B38M descending, 23 nm north, 6:28 pm PDT (01:28 UTC): light chop turbulence, remarks: during the descent runway 35L rno. 130 nm along the route, 23 nm north of the line.
as filed, and in English
```
RNO UA /OV KRNO167009/TM 0128/FLUNKN/TP B38M/TB OCNL LGT CHOP/RM DURD RY35L RNO
```
Report
a routine report filed through RNO
Where
9 nm south (167°) of KRNO
Time
01:28 UTC
Height
height not given
Aircraft
B38M
Turbulence
occasional light chop
Remarks
during the descent runway 35L rno
B737 at 16,000 ft, 4 nm east, 5:45 pm PDT (00:45 UTC): no turbulence, light rime icing from 13,000 ft to 17,000 ft, 8 °C, remarks: during the climb. 479 nm along the route, 4 nm east of the line.
as filed, and in English
```
SLC UA /OV TCH230020/TM 0045/FL160/TP B737/TA 8/TB NEG/IC LT RIME 130-170/RM DURC
```
Report
a routine report filed through SLC
Where
20 nm southwest (230°) of TCH
Time
00:45 UTC
Height
at 16,000 ft
Aircraft
B737
Temperature
8 °C
Turbulence
none
Icing
lt rime from 13,000 ft to 17,000 ft
Remarks
during the climb
B38M at 16,000 ft, 2 nm southwest, 5:06 pm PDT (00:06 UTC): no turbulence, no icing, 13 °C, remarks: during the climb. 489 nm along the route, 2 nm southwest of the line.
as filed, and in English
```
SLC UA /OV TCH230015/TM 0006/FL160/TP B38M/TA 13/TB NEG/IC NEG/RM DURC
```
Report
a routine report filed through SLC
Where
15 nm southwest (230°) of TCH
Time
00:06 UTC
Height
at 16,000 ft
Aircraft
B38M
Temperature
13 °C
Turbulence
none
Icing
none
Remarks
during the climb
A321 at 10,000 ft, 18 nm south, 5:00 pm PDT (00:00 UTC): light chop turbulence, no icing, remarks: during the descent. 499 nm along the route, 18 nm south of the line.
as filed, and in English
```
SLC UA /OV TCH165020/TM 0000/FL100/TP A321/TB LGT CHOP/IC NEG/RM DURD
```
Report
a routine report filed through SLC
Where
20 nm south (165°) of TCH
Time
00:00 UTC
Height
at 10,000 ft
Aircraft
A321
Turbulence
light chop
Icing
none
Remarks
during the descent
UAL2395 at 37,000 ft, 12 nm north, 5:58 pm PDT (00:58 UTC): no turbulence, wind 240° at 70 knots. 639 nm along the route, 12 nm north of the line.
as filed, and in English
```
ARP UAL2395 4135N 10900W 0058 F370 240/070KT TB NONE SK CLEAR IC NONE
```
Report
a routine report filed through ARP

16 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 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 20 forecast points nearest it (SAC, RNO, BAM, ELY, SLC, RKS, BFF, ONL, FSD, MCW, DBQ, MKG, CLE, BUF, SYR, AVP, ALB, BDL, BOS, ACK). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
3,500 ft	240° at 11 kt	−9 kt		129 kt	18 h 15 min	4:52 pm EDT (20:52 UTC)
5,500 ft	240° at 11 kt	−10 kt	20 °C	130 kt	18 h 07 min	4:44 pm EDT (20:44 UTC)
7,500 ft	240° at 13 kt	−13 kt	10 °C	133 kt	17 h 42 min	4:19 pm EDT (20:19 UTC)
9,500 ft	240° at 14 kt	−14 kt	7 °C	134 kt	17 h 34 min	4:11 pm EDT (20:11 UTC)
11,500 ft	240° at 16 kt	−16 kt	3 °C	136 kt	17 h 19 min	3:56 pm EDT (19:56 UTC)
13,500 ft	240° at 18 kt	−18 kt	-1 °C	138 kt	17 h 04 min	3:41 pm EDT (19:41 UTC)
15,500 ft	240° at 20 kt	−20 kt	-6 °C	140 kt	16 h 49 min	3:26 pm EDT (19:26 UTC)
17,500 ft	250° at 22 kt	−22 kt	-10 °C	142 kt	16 h 35 min	3:12 pm EDT (19:12 UTC)
18,000 ft FL180	250° at 22 kt	−23 kt	-11 °C	143 kt	16 h 28 min	3:05 pm EDT (19:05 UTC)
24,000 ft FL240	240° at 27 kt	−27 kt	-22 °C	147 kt	16 h 01 min	2:38 pm EDT (18:38 UTC)
30,000 ft FL300	250° at 35 kt	−35 kt	-33 °C	155 kt	15 h 12 min	1:49 pm EDT (17:49 UTC)
34,000 ft FL340	250° at 44 kt	−45 kt	-39 °C	165 kt	14 h 16 min	12:53 pm EDT (16:53 UTC)
39,000 ft FL390	260° at 48 kt	−49 kt	-48 °C	169 kt	13 h 56 min	12:33 pm EDT (16:33 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
SAC	used from 0 nm out; 16 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°
RNO	used from 100 nm out; 33 nm from the line		010/9	320/10 -2°	210/23 -9°	210/34 -19°	220/36 -25°	230/31 -29°	230/41 -33°	230/38 -42°
BAM	used from 200 nm out; 78 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 299 nm out; 59 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°
SLC	used from 399 nm out; 77 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
RKS	used from 549 nm out; 68 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
BFF	used from 749 nm out; 112 nm from the line		180/28	220/33 15°	210/31 7°	230/32 -9°	220/41 -21°	220/40 -33°	240/47 -36°	250/54 -46°
ONL	used from 998 nm out; 83 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
FSD	used from 1148 nm out; 52 nm from the line	190/9	230/30 18°	240/23 13°	240/20 6°	260/22 -9°	250/31 -21°	250/43 -36°	260/49 -43°	270/53 -47°
MCW	used from 1248 nm out; 72 nm from the line	220/44	250/30 17°	230/14 12°	240/17 6°	250/22 -8°	270/29 -20°	250/34 -34°	260/52 -43°	260/59 -51°
DBQ	used from 1397 nm out; 52 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
MKG	used from 1547 nm out; 83 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
CLE	used from 1747 nm out; 116 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
BUF	used from 1896 nm out; 68 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
SYR	used from 2046 nm out; 60 nm from the line	280/13	350/18 10°	340/10 6°	300/15 1°	280/17 -12°	270/16 -23°	280/25 -38°	250/40 -42°	240/53 -50°
AVP	used from 2096 nm out; 49 nm from the line	150/5	350/13 12°	270/20 8°	260/17 4°	260/25 -11°	240/31 -22°	240/54 -35°	230/61 -41°	240/55 -49°
ALB	used from 2146 nm out; 58 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
BDL	used from 2196 nm out; 39 nm from the line	120/24	290/23 12°	280/21 8°	250/36 3°	250/41 -11°	230/48 -21°	230/78 -32°	230/96 -41°	230/86 -52°
BOS	used from 2296 nm out; 53 nm from the line	110/20	200/26 12°	280/24 8°	260/29 3°	250/47 -10°	230/59 -19°	230/74 -33°	240/95 -41°	240/96 -53°
ACK	used from 2345 nm out; 31 nm from the line	230/29	270/37 16°	270/38 10°	270/40 4°	240/46 -8°	230/52 -17°	240/74 -31°	240/83 -41°	240/91 -53°

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
APC Napa, CA	departure	VFR	from the south (180°) at 11 knots	10+ mi	none	35 ft	6:54 pm PDT (01:54 UTC)
MHR Sacramento, CA	50 nm out, 3 nm north of the line, tower	VFR	from the southwest (220°) at 8 knots	10+ mi	none	98 ft	02:15 UTC
TMT Austin, NV	250 nm out, 10 nm south of the line	VFR Sky: scattered clouds at 4,900 feet, a broken layer at 6,000 feet, overcast at 10,000 feet	from the north-northwest (330°) at 6 knots	10+ mi	6,000 ft	5,735 ft	02:15 UTC
SLC Salt Lake City, UT	499 nm out, 4 nm southeast of the line, tower	VFR Sky: a few clouds at 800 feet, a broken layer at 5,000 feet, overcast at 8,000 feet Weather: light rain	from the south (170°) at 6 knots	10+ mi	5,000 ft	4,230 ft	02:30 UTC
GUR Guernsey, WY	838 nm out, 13 nm north of the line, tower	VFR Sky: a few clouds at 4,700 feet, a broken layer at 10,000 feet, a broken layer at 12,000 feet Weather: light rain	from the east-northeast (070°) at 14 knots	9 mi	10,000 ft	4,401 ft	02:23 UTC
ANW Ainsworth, NE	1048 nm out, 1 nm northeast of the line	VFR	from the north (360°) at 6 knots	10+ mi	none	2,588 ft	02:15 UTC
VMR Vermillion, SD	1188 nm out, 4 nm southwest of the line	VFR	from the west-northwest (300°) at 4 knots	10+ mi	none	1,146 ft	02:15 UTC
UES Waukesha, WI	1567 nm out, 2 nm north of the line, tower	VFR	from the south (180°) at 7 knots	10+ mi	none	911 ft	02:15 UTC
GRR Grand Rapids, MI	1687 nm out, 4 nm south of the line, tower	VFR Sky: scattered clouds at 25,000 feet	from the south (190°) at 6 knots	10+ mi	none	793 ft	01:53 UTC
BGM Binghamton, NY	2106 nm out, 5 nm east of the line, tower	low IFR Sky: a broken layer at 300 feet, a broken layer at 1,000 feet, overcast at 1,600 feet Weather: light rain, mist	from the north-northeast (030°) at 5 knots	3 mi	300 ft	1,635 ft	01:53 UTC
HFD Hartford, CT	2266 nm out, 4 nm west of the line, tower	marginal VFR Sky: a few clouds at 600 feet, a broken layer at 2,800 feet, overcast at 3,500 feet Weather: light rain, mist	from the north-northeast (020°) at 11 knots	5 mi	2,800 ft	18 ft	02:18 UTC
MVY Vineyard Haven, MA	destination	marginal VFR Sky: a few clouds at 600 feet, scattered clouds at 900 feet, overcast at 2,400 feet Weather: rain	from the east (080°) at 16 knots, gusting to 21	10+ mi	2,400 ft	66 ft	10:02 pm EDT (02:02 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 MVY when you get there the forecast at the estimated arrival, 12:33 pm EDT (16:33 UTC)

MVY has no terminal forecast; use the nearest airport that does.

The forecast for APC, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the south at 15 knots, visibility more than 6 miles, clear skies
From Sun 8:00 pm PDT (03:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, clear skies

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

6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local on the route, at the departure end · air shows/sports · ended 11 October · ZOA
6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 12 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZBW

Daylight

Sunset at APC 6:35 pm PDT (01:35 UTC), at MVY 6:06 pm EDT (22:06 UTC) (civil twilight ends 6:34 pm EDT (22:34 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 southern Rockies · loop National Weather Service

Radar now, the northern 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: Napa County, Martha'S Vineyard Airport.