Plan a flight · Sun 10:17 pm EDT (02:17 UTC)

Laurence G Hanscom Field to San Francisco International BED → SFO

2,331 nautical miles (2,682 statute miles) west on a straight line, true course 281°, about 297° magnetic at the departure end (variation 16W). At 120 knots that is 20 h 06 min at the quickest height in today's winds (4,500 ft, a 4-knot headwind), arriving about 3:23 pm PDT (22:23 UTC). Right now BED is IFR, wind from the east (080°) at 5 knots; SFO is VFR, wind from the west-southwest (250°) at 9 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: 3 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 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1464 to 1544 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.

SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1962 to 2092 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.
```
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 first 508 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the first 229 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 339 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 199 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 60 to 229 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 926 to 1036 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1384 to 2111 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1444 to 2002 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 1514 to 1733 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 1584 to 1693 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1604 to 2062 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1613 to 2131 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 1733 to 1813 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 2131 to 2201 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 50 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 BED.

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

urgent BCS3 at 5,400 ft, 26 nm south, 7:35 pm EDT (23:35 UTC): remarks: wind shear 10 knots gain 1000 above ground on final. 1813 nm along the route, 26 nm south of the line.
as filed, and in English
```
PVU UUA /OV PVU310001/TM 2335/FL054/TP BCS3/RM WIND SHEAR 10 KT GAIN 1000 AGL ON FINAL
```
Report
an urgent report filed through PVU
Where
1 nm northwest (310°) of PVU
Time
23:35 UTC
Height
at 5,400 ft
Aircraft
BCS3
Remarks
wind shear 10 knots gain 1000 above ground on final
A333 at 15,000 ft, 42 nm northeast, 9:37 pm EDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. At the departure end, 42 nm northeast of the line.
as filed, and in English
```
PSM UA /OV PSM/TM 0137/FL150/TP A333/TB MOD CHOP BLO 150/RM DURC
```
Report
a routine report filed through PSM
Where
over PSM
Time
01:37 UTC
Height
at 15,000 ft
Aircraft
A333
Turbulence
moderate chop below 15,000 ft
Remarks
during the climb
A321 at 5,000 ft, 34 nm southeast, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the departure end, 34 nm southeast 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
BCS3 at 18,000 ft, 50 nm south, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. At the departure end, 50 nm south 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
BCS3 at 12,000 ft, 29 nm southeast, 8:11 pm EDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. At the departure end, 29 nm southeast 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
E75S at 16,000 ft, 32 nm south, 7:35 pm EDT (23:35 UTC): moderate clear-air turbulence above 16,000 ft, remarks: moderate in +ra to light chop. At the departure end, 32 nm south of the line.
as filed, and in English
```
SFZ UA /OV PUT360003/TM 2335/FL160/TP E75S/TB MOD 160 CAT/RM MOD IN +RA TO LGT CHOP
```
Report
a routine report filed through SFZ
Where
3 nm north (360°) of PUT
Time
23:35 UTC
Height
at 16,000 ft
Aircraft
E75S
Turbulence
moderate at 16,000 ft clear-air turbulence
Remarks
moderate in +ra to light chop
GLF4 at 10,000 ft, 18 nm south, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. At the departure end, 18 nm south 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
CRJ7 at 20,000 ft, 34 nm north, 8:50 pm EDT (00:50 UTC): moderate turbulence. 100 nm along the route, 34 nm north of the line.
as filed, and in English
```
ALB UA /OV CAM360020/TM 0050/FL200/TP CRJ7/TB MOD
```
Report
a routine report filed through ALB
Where
20 nm north (360°) of CAM
Time
00:50 UTC
Height
at 20,000 ft
Aircraft
CRJ7
Turbulence
moderate
GLEX at 26,000 ft, 16 nm northeast, 7:54 pm EDT (23:54 UTC): moderate clear-air turbulence. 100 nm along the route, 16 nm northeast of the line.
as filed, and in English
```
ALB UA /OV CAM/TM 2354/FL260/TP GLEX/TB MOD CAT 260-230 LGT MOD CAT BLO 230
```
Report
a routine report filed through ALB
Where
over CAM
Time
23:54 UTC
Height
at 26,000 ft
Aircraft
GLEX
Turbulence
moderate clear-air turbulence from 26,000 ft to 23,000 ft light moderate clear-air turbulence below 23,000 ft
E75S at 10,000 ft, 46 nm south, 7:53 pm EDT (23:53 UTC): moderate clear-air turbulence. 100 nm along the route, 46 nm south 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
A388 at 34,000 ft, 29 nm south, 7:19 pm EDT (23:19 UTC): moderate chop turbulence. 100 nm along the route, 29 nm south of the line.
as filed, and in English
```
POU UA /OV PWL010030/TM 2319/FL340/TP A388/TB MOD CHOP
```
Report
a routine report filed through POU
Where
30 nm north (010°) of PWL
Time
23:19 UTC
Height
at 34,000 ft
Aircraft
A388
Turbulence
moderate chop
PC12 at 8,000 ft, 44 nm south, 7:29 pm EDT (23:29 UTC): moderate clear-air turbulence. 120 nm along the route, 44 nm south of the line.
as filed, and in English
```
POU UA /OV IGN340030/TM 2329/FL080/TP PC12/TB MOD CAT
```
Report
a routine report filed through POU
Where
30 nm north (340°) of IGN
Time
23:29 UTC
Height
at 8,000 ft
Aircraft
PC12
Turbulence
moderate clear-air turbulence
DH8D at 19,000 ft, 5 nm southeast, 7:35 pm EDT (23:35 UTC): moderate chop turbulence, remarks: zob. 289 nm along the route, 5 nm southeast of the line.
as filed, and in English
```
ROC UA /OV ROC/TM 2335/FL190/TP DH8D/TB CONS MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
over ROC
Time
23:35 UTC
Height
at 19,000 ft
Aircraft
DH8D
Turbulence
continuous moderate chop
Remarks
zob
BE9L at 21,000 ft, 27 nm north, 7:22 pm EDT (23:22 UTC): light chop turbulence above 21,000 ft, moderate icing above 21,000 ft, -21 °C, remarks: zdvwc. 1504 nm along the route, 27 nm north of the line.
as filed, and in English
```
DGW UA /OV IIP200020/TM 2322/FL210/TP BE9L/SK BASE 200/TA M21/TB OCNL LGT CHOP 210/IC MOD MIX 210/RM ZDVWC
```
Report
a routine report filed through DGW
Where
20 nm south (200°) of IIP
Time
23:22 UTC
Height
at 21,000 ft
Aircraft
BE9L
Sky
base 20,000 ft
Temperature
−21 °C
Turbulence
occasional light chop at 21,000 ft
Icing
moderate mix at 21,000 ft
Remarks
zdvwc

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 20 forecast points nearest it (BOS, ALB, SYR, BUF, CLE, TVC, MKG, GRB, LSE, MCW, FSD, ONL, BFF, RKS, SLC, ELY, BAM, RNO, SAC, SFO). 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	200° at 11 kt	+4 kt	17 °C	116 kt	20 h 06 min	3:23 pm PDT (22:23 UTC)
6,500 ft	220° at 10 kt	+7 kt	12 °C	113 kt	20 h 38 min	3:55 pm PDT (22:55 UTC)
8,500 ft	220° at 15 kt	+12 kt	8 °C	108 kt	21 h 35 min	4:52 pm PDT (23:52 UTC)
10,500 ft	230° at 18 kt	+16 kt	5 °C	104 kt	22 h 25 min	5:42 pm PDT (00:42 UTC)
12,500 ft	230° at 21 kt	+19 kt	1 °C	101 kt	23 h 05 min	6:22 pm PDT (01:22 UTC)
14,500 ft	230° at 22 kt	+21 kt	-3 °C	99 kt	23 h 33 min	6:50 pm PDT (01:50 UTC)
16,500 ft	230° at 24 kt	+22 kt	-7 °C	98 kt	23 h 47 min	7:04 pm PDT (02:04 UTC)
18,000 ft FL180	240° at 25 kt	+24 kt	-10 °C	96 kt	24 h 17 min	7:34 pm PDT (02:34 UTC)
24,000 ft FL240	240° at 31 kt	+30 kt	-21 °C	90 kt	25 h 54 min	9:11 pm PDT (04:11 UTC)
30,000 ft FL300	240° at 41 kt	+39 kt	-33 °C	81 kt	28 h 47 min	12:04 am PDT (07:04 UTC)
34,000 ft FL340	250° at 51 kt	+50 kt	-40 °C	70 kt	33 h 18 min	4:35 am PDT (11:35 UTC)
39,000 ft FL390	250° at 59 kt	+58 kt	-48 °C	62 kt	37 h 36 min	8:53 am PDT (15:53 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
BOS	used from 0 nm out; 39 nm from the line	160/27	190/23 9°	260/20 7°	260/32 1°	250/48 -7°	240/56 -17°	240/59 -33°	250/75 -43°	250/94 -55°
ALB	used from 50 nm out; 38 nm from the line	160/27	190/16 9°	200/29 7°	230/21 3°	240/24 -9°	240/43 -19°	230/65 -33°	240/91 -42°	230/99 -53°
SYR	used from 149 nm out; 42 nm from the line	160/17	200/22 10°	250/10 6°	L/V 1°	270/11 -11°	220/25 -20°	220/66 -36°	230/89 -42°	240/74 -51°
BUF	used from 249 nm out; 58 nm from the line	170/19	L/V 10°	040/9 6°	220/8 2°	230/15 -11°	220/33 -22°	220/47 -35°	230/55 -41°	230/56 -50°
CLE	used from 448 nm out; 120 nm from the line	340/5	320/13 14°	300/12 8°	310/10 2°	310/14 -10°	340/14 -23°	320/27 -35°	260/28 -40°	250/36 -48°
TVC	used from 498 nm out; 131 nm from the line	210/17	290/14 15°	310/20 9°	310/18 2°	310/24 -11°	320/35 -22°	320/53 -39°	310/45 -49°	290/58 -51°
MKG	used from 548 nm out; 88 nm from the line	250/5	320/10 15°	310/19 9°	320/21 3°	310/23 -10°	330/37 -22°	330/51 -38°	320/44 -47°	300/60 -49°
GRB	used from 697 nm out; 62 nm from the line	240/24	260/18 16°	270/20 11°	290/14 4°	280/24 -9°	300/34 -21°	310/51 -38°	310/54 -48°	300/71 -51°
LSE	used from 797 nm out; 61 nm from the line	220/33	250/29 17°	250/15 9°	260/12 6°	280/21 -9°	280/33 -20°	300/43 -36°	310/56 -45°	300/79 -53°
MCW	used from 896 nm out; 48 nm from the line	200/35	240/33 18°	250/20 10°	260/10 6°	270/18 -8°	260/28 -19°	280/30 -34°	290/49 -43°	280/70 -54°
FSD	used from 1046 nm out; 54 nm from the line	200/16	220/20 17°	240/26 13°	230/19 6°	240/25 -9°	240/28 -20°	250/39 -33°	250/44 -43°	260/63 -52°
ONL	used from 1145 nm out; 45 nm from the line		200/20 17°	230/26 14°	240/21 7°	250/27 -9°	260/32 -19°	240/44 -34°	240/56 -41°	250/62 -51°
BFF	used from 1295 nm out; 112 nm from the line		120/24	180/31 13°	210/26 7°	230/25 -7°	240/41 -20°	230/52 -36°	250/56 -41°	260/57 -45°
RKS	used from 1544 nm out; 104 nm from the line			190/43	210/65 3°	210/57 -9°	210/56 -21°	210/47 -33°	230/63 -37°	240/77 -46°
SLC	used from 1743 nm out; 44 nm from the line		280/8	210/39 5°	210/52 -1°	200/50 -11°	200/56 -23°	220/61 -28°	230/73 -37°	230/73 -45°
ELY	used from 1892 nm out; 58 nm from the line			210/20 4°	240/21 -1°	230/37 -13°	200/58 -25°	220/73 -27°	220/73 -36°	220/69 -44°
BAM	used from 2042 nm out; 81 nm from the line			270/8 4°	230/27 -4°	220/49 -18°	210/52 -26°	220/77 -29°	220/71 -33°	220/63 -43°
RNO	used from 2092 nm out; 81 nm from the line		320/7	260/13 1°	230/21 -7°	210/38 -17°	220/43 -26°	230/54 -29°	230/59 -32°	230/54 -41°
SAC	used from 2191 nm out; 64 nm from the line	270/5	L/V 5°	L/V -1°	240/11 -5°	250/22 -15°	270/25 -24°	260/31 -27°	240/39 -33°	240/39 -42°
SFO	used from 2291 nm out; 20 nm from the line	220/11	L/V 5°	280/7 1°	270/15 -3°	290/23 -14°	310/29 -24°	280/26 -28°	250/30 -34°	250/36 -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
BED Bedford, MA	departure	IFR Sky: a broken layer at 700 feet, overcast at 5,500 feet Weather: rain, mist	from the east (080°) at 5 knots	3 mi	700 ft	132 ft	9:58 pm EDT (01:58 UTC)
ALB Albany, NY	110 nm out, 3 nm southwest of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 2,200 feet Weather: light rain, mist	from the north-northwest (330°) at 4 knots	4 mi	400 ft	284 ft	01:51 UTC
ROC Rochester, NY	279 nm out, 5 nm west of the line, tower	VFR Sky: scattered clouds at 400 feet, a broken layer at 5,000 feet, overcast at 6,500 feet	from the southeast (140°) at 7 knots	10+ mi	5,000 ft	558 ft	01:54 UTC
MBS Saginaw, MI	568 nm out, 4 nm northeast of the line, tower	VFR	from the south (180°) at 6 knots	10+ mi	none	668 ft	01:53 UTC
MSN Madison, WI	797 nm out, 20 nm south of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the south (190°) at 6 knots	10+ mi	none	886 ft	01:53 UTC
SPW Spencer, IA	1046 nm out, 5 nm southwest of the line	VFR	from the south (170°) at 7 knots	10+ mi	none	1,338 ft	01:53 UTC
ANW Ainsworth, NE	1265 nm out, 9 nm south of the line	VFR	from the north (360°) at 7 knots	10+ mi	none	2,588 ft	01:55 UTC
GUR Guernsey, WY	1474 nm out, 12 nm north of the line, tower	VFR Sky: scattered clouds at 13,000 feet, scattered clouds at 15,000 feet, scattered clouds at 25,000 feet	from the east-northeast (070°) at 14 knots	10+ mi	none	4,401 ft	01:56 UTC
SLC Salt Lake City, UT	1813 nm out, 9 nm north of the line, tower	VFR Sky: a few clouds at 1,300 feet, scattered clouds at 4,800 feet, overcast at 6,000 feet Weather: light rain	from the south (180°) at 4 knots	10+ mi	6,000 ft	4,230 ft	01:54 UTC
TMT Austin, NV	2062 nm out, 12 nm northwest of the line	VFR Sky: scattered clouds at 6,000 feet, overcast at 10,000 feet	from the north-northwest (330°) at 5 knots	10+ mi	10,000 ft	5,735 ft	01:55 UTC
SCK Stockton, CA	2271 nm out, 7 nm south of the line, tower	VFR Sky: scattered clouds at 9,000 feet	from the west-southwest (250°) at 8 knots	10+ mi	none	32 ft	01:55 UTC
SFO San Francisco, CA	destination	VFR Sky: a few clouds at 2,000 feet	from the west-southwest (250°) at 9 knots	10+ mi	none	13 ft	6:56 pm PDT (01:56 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 SFO when you get there the forecast at the estimated arrival, 3:23 pm PDT (22:23 UTC)

Wind from the west at 10 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SFO

From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 16 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Sun 7:00 pm PDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Mon 1:00 am PDT (08:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
From Mon 11:00 am PDT (18:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, clear skies

The forecast for BED, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 3 knots, visibility 4 miles, rain, mist, overcast at 2,500 feet
From Sun 10:00 pm EDT (02:00 UTC): wind calm, visibility 2 miles, light rain, mist, overcast at 800 feet
From Sun 11:00 pm EDT (03:00 UTC): wind calm, visibility 1½ miles, light rain, mist, overcast at 300 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the north-northeast at 4 knots, visibility 2 miles, mist, overcast at 300 feet
30% chance between Mon 3:00 am EDT (07:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 1 mile, light rain showers, mist, overcast at 100 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 3 knots, visibility more than 6 miles, a broken layer at 1,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 4 knots, visibility more than 6 miles, a few clouds at 9,000 feet

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

6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 22 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 24 nm from the route, at the destination end · air shows/sports · ended 11 October · ZOA
6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 19 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at BED 6:08 pm EDT (22:08 UTC), at SFO 6:36 pm PDT (01:36 UTC) (civil twilight ends 7:02 pm PDT (02:02 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 Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Laurence G Hanscom Field, San Francisco International.