Plan a flight · Mon 9:59 am EDT (13:59 UTC)

Portsmouth International AT Pease to San Bernardino International PSM → SBD

2,214 nautical miles (2,548 statute miles) west on a straight line, true course 272°, about 288° magnetic at the departure end (variation 16W). At 120 knots that is 21 h 42 min at the quickest height in today's winds (8,500 ft, a 18-knot headwind), arriving about 4:41 am PDT (11:41 UTC), after sunset at the destination. Right now PSM is VFR, wind calm; SBD is IFR, wind from the southwest (220°) at 3 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: 2 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, at the departure end.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the first 120 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 50 to 239 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 route from 80 to 369 nm out.
AIRMET TANGO 2W: 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 1057 to 1207 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 1446 to 1975 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1536 to 1725 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1666 to 2045 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1735 to 1975 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 1925 to 2025 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, 1925 nm along the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 60 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 30 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 PSM.

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

E75L at 33,000 ft, 7 nm southeast, 9:25 am EDT (13:25 UTC): moderate turbulence. 229 nm along the route, 7 nm southeast of the line.
as filed, and in English
```
SYR UA /OV SYR140015/TM 1325/FL330/TP E75L/TB CONS MOD 350 CONS LGT 330
```
Report
a routine report filed through SYR
Where
15 nm southeast (140°) of SYR
Time
13:25 UTC
Height
at 33,000 ft
Aircraft
E75L
Turbulence
continuous moderate at 35,000 ft continuous light at 33,000 ft
A321 at 35,000 ft, 18 nm north, 7:16 am EDT (11:16 UTC): moderate chop turbulence above 35,000 ft. 249 nm along the route, 18 nm north of the line.
as filed, and in English
```
SYR UA /OV SYR320020/TM 1116/FL350/TP A321/TB OCNL MOD CHOP 350
```
Report
a routine report filed through SYR
Where
20 nm northwest (320°) of SYR
Time
11:16 UTC
Height
at 35,000 ft
Aircraft
A321
Turbulence
occasional moderate chop at 35,000 ft
E170 at 28,000 ft, 18 nm north, 9:10 am EDT (13:10 UTC): moderate chop turbulence. 648 nm along the route, 18 nm north of the line.
as filed, and in English
```
GRR UA /OV VIO/TM 1310/FL280/TP E170/TB OCNL MOD CHOP
```
Report
a routine report filed through GRR
Where
over VIO
Time
13:10 UTC
Height
at 28,000 ft
Aircraft
E170
Turbulence
occasional moderate chop
C172 at 9,500 ft, 18 nm northwest, 8:43 am EDT (12:43 UTC): moderate chop turbulence. 1536 nm along the route, 18 nm northwest of the line.
as filed, and in English
```
COS UA /OV BRK348/005/TM 1243/FL095/TP C172/TB TB MOD CHOP
```
Report
a routine report filed through COS
Where
BRK348/005
Time
12:43 UTC
Height
at 9,500 ft
Aircraft
C172
Turbulence
turbulence moderate chop
A321 at 19,000 ft, 11 nm north, 8:39 am EDT (12:39 UTC): moderate chop turbulence, remarks: zlawc. 2025 nm along the route, 11 nm north of the line.
as filed, and in English
```
CDC UA /OV PGS275017/TM 1239/FL190/TP A321/TB MOD CHOP/RM ZLAWC AWC-WEB
```
Report
a routine report filed through CDC
Where
17 nm west (275°) of PGS
Time
12:39 UTC
Height
at 19,000 ft
Aircraft
A321
Turbulence
moderate chop
Remarks
zlawc
C700 at 600 ft, 30 nm south, 9:40 am EDT (13:40 UTC): overcast above 600 ft. At the departure end, 30 nm south of the line.
as filed, and in English
```
BVY UA /OV BVY/TM 1340/FL006/TP C700/SK OVC006-TOPUNKN
```
Report
a routine report filed through BVY
Where
over BVY
Time
13:40 UTC
Height
at 600 ft
Aircraft
C700
Sky
overcast from 600 ft, tops unknown
BCS3 at 200 ft, 41 nm northeast, 7:07 am EDT (11:07 UTC): a routine report with nothing remarked on. At the departure end, 41 nm northeast of the line.
as filed, and in English
```
PWM UA /OV PWM/TM 1107/FL002/TP BCS3/SK BASE 002
```
Report
a routine report filed through PWM
Where
over PWM
Time
11:07 UTC
Height
at 200 ft
Aircraft
BCS3
Sky
base 200 ft
A321 at 600 ft, 44 nm south, 9:43 am EDT (13:43 UTC): a broken layer above 600 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1343/FL006/TP A321/SK BKN006
```
Report
a routine report filed through BOS
Where
over BOS
Time
13:43 UTC
Height
at 600 ft
Aircraft
A321
Sky
a broken layer from 600 ft
B738 at 600 ft, 44 nm south, 9:05 am EDT (13:05 UTC): a broken layer above 600 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1305/FL006/TP B738/SK BKN006
```
Report
a routine report filed through BOS
Where
over BOS
Time
13:05 UTC
Height
at 600 ft
Aircraft
B738
Sky
a broken layer from 600 ft
E75S at 600 ft, 44 nm south, 8:53 am EDT (12:53 UTC): a broken layer above 600 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1253/FL006/TP E75S/SK BKN006
```
Report
a routine report filed through BOS
Where
over BOS
Time
12:53 UTC
Height
at 600 ft
Aircraft
E75S
Sky
a broken layer from 600 ft
A321 at 500 ft, 44 nm south, 8:15 am EDT (12:15 UTC): a broken layer above 500 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1215/FL005/TP A321/SK BKN005
```
Report
a routine report filed through BOS
Where
over BOS
Time
12:15 UTC
Height
at 500 ft
Aircraft
A321
Sky
a broken layer from 500 ft
E175 at 500 ft, 44 nm south, 7:50 am EDT (11:50 UTC): a broken layer above 500 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1150/FL005/TP E175/SK BKN005
```
Report
a routine report filed through BOS
Where
over BOS
Time
11:50 UTC
Height
at 500 ft
Aircraft
E175
Sky
a broken layer from 500 ft
B738 at 600 ft, 44 nm south, 7:07 am EDT (11:07 UTC): a broken layer above 600 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1107/FL006/TP B738/SK BKN006
```
Report
a routine report filed through BOS
Where
over BOS
Time
11:07 UTC
Height
at 600 ft
Aircraft
B738
Sky
a broken layer from 600 ft
E75S at 8,000 ft, 44 nm south, 7:04 am EDT (11:04 UTC): light chop turbulence, overcast from 800 ft to 3,000 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1104/FL080/TP E75S/SK OVC008-TOP030/TB LGT CHOP ABV080
```
Report
a routine report filed through BOS
Where
over BOS
Time
11:04 UTC
Height
at 8,000 ft
Aircraft
E75S
Sky
overcast from 800 ft, tops 3,000 ft
Turbulence
light chop ABV080

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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, MKG, JOT, DBQ, BRL, DSM, OMA, GRI, GLD, PUB, ALS, FMN, BCE, PRC, LAS, 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
4,500 ft	260° at 20 kt	+21 kt	14 °C	99 kt	22 h 22 min	5:21 am PDT (12:21 UTC)
6,500 ft	260° at 17 kt	+19 kt	13 °C	101 kt	21 h 55 min	4:54 am PDT (11:54 UTC)
8,500 ft	260° at 17 kt	+18 kt	9 °C	102 kt	21 h 42 min	4:41 am PDT (11:41 UTC)
10,500 ft	250° at 19 kt	+21 kt	6 °C	99 kt	22 h 22 min	5:21 am PDT (12:21 UTC)
12,500 ft	250° at 21 kt	+23 kt	2 °C	97 kt	22 h 49 min	5:48 am PDT (12:48 UTC)
14,500 ft	250° at 23 kt	+25 kt	-2 °C	95 kt	23 h 18 min	6:17 am PDT (13:17 UTC)
16,500 ft	250° at 26 kt	+28 kt	-7 °C	92 kt	24 h 04 min	7:03 am PDT (14:03 UTC)
18,000 ft FL180	250° at 27 kt	+30 kt	-10 °C	90 kt	24 h 36 min	7:35 am PDT (14:35 UTC)
24,000 ft FL240	250° at 36 kt	+39 kt	-21 °C	81 kt	27 h 20 min	10:19 am PDT (17:19 UTC)
30,000 ft FL300	250° at 46 kt	+50 kt	-33 °C	70 kt	31 h 38 min	2:37 pm PDT (21:37 UTC)
34,000 ft FL340	260° at 54 kt	+57 kt	-39 °C	63 kt	35 h 09 min	6:08 pm PDT (01:08 UTC)
39,000 ft FL390	260° at 53 kt	+56 kt	-48 °C	64 kt	34 h 36 min	5:35 pm PDT (00:35 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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; 47 nm from the line	020/10	360/20 10°	340/19 7°	290/21 2°	270/35 -9°	260/42 -22°	250/55 -38°	240/75 -43°	250/72 -51°
ALB	used from 50 nm out; 60 nm from the line	340/22	340/19 9°	320/16 7°	330/16 2°	330/19 -11°	320/21 -23°	320/25 -39°	280/30 -44°	270/41 -51°
SYR	used from 199 nm out; 7 nm from the line	330/17	320/14 9°	350/18 8°	350/26 2°	340/25 -11°	360/34 -22°	350/43 -39°	330/50 -46°	350/50 -54°
BUF	used from 299 nm out; 23 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
CLE	used from 449 nm out; 86 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
MKG	used from 549 nm out; 109 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
JOT	used from 698 nm out; 64 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -50°
DBQ	used from 848 nm out; 35 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
BRL	used from 898 nm out; 57 nm from the line	250/32	250/19 17°	260/15 11°	270/16 3°	290/23 -7°	260/42 -20°	270/52 -34°	280/63 -39°	290/64 -48°
DSM	used from 948 nm out; 45 nm from the line	250/47	260/25 20°	240/19 11°	240/31 5°	250/26 -9°	260/38 -20°	260/47 -34°	270/58 -37°	270/61 -47°
OMA	used from 1047 nm out; 50 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
GRI	used from 1197 nm out; 35 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
GLD	used from 1297 nm out; 83 nm from the line		260/37	260/25 14°	250/27 8°	230/36 -8°	230/49 -21°	250/71 -30°	260/82 -36°	250/73 -48°
PUB	used from 1496 nm out; 38 nm from the line			260/45 11°	240/38 6°	230/47 -8°	230/51 -19°	240/74 -29°	240/82 -35°	250/72 -48°
ALS	used from 1596 nm out; 51 nm from the line				240/35 3°	230/54 -9°	240/66 -19°	230/85 -26°	240/87 -34°	240/70 -47°
FMN	used from 1696 nm out; 55 nm from the line			220/16 6°	220/39 1°	220/50 -10°	230/67 -23°	230/94 -29°	230/102 -35°	230/90 -46°
BCE	used from 1845 nm out; 86 nm from the line				200/32 -2°	210/57 -15°	220/71 -22°	220/69 -30°	220/64 -38°	220/67 -44°
PRC	used from 1945 nm out; 79 nm from the line			200/37 6°	200/35 0°	220/60 -11°	220/71 -20°	220/88 -29°	220/98 -35°	220/94 -45°
LAS	used from 1995 nm out; 76 nm from the line		210/20 8°	210/29 4°	200/32 -3°	200/51 -15°	210/64 -21°	220/70 -30°	220/66 -38°	220/55 -44°
ONT	used from 2144 nm out; 62 nm from the line	250/11	200/20 4°	210/27 3°	220/26 -4°	240/32 -13°	220/52 -21°	220/67 -30°	220/72 -37°	220/65 -46°

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
PSM Portsmouth, NH	departure	VFR Sky: a few clouds at 1,000 feet, a few clouds at 3,000 feet, scattered clouds at 6,000 feet, a broken layer at 20,000 feet	calm	10+ mi	20,000 ft	100 ft	8:55 am EDT (12:55 UTC)
RME Rome, NY	199 nm out, 8 nm north of the line, tower	IFR Sky: overcast at 500 feet	from the west-northwest (290°) at 5 knots	9 mi	500 ft	504 ft	13:53 UTC
SYR Syracuse, NY	229 nm out, 3 nm northwest of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 2,800 feet	from the west-southwest (250°) at 6 knots	10+ mi	700 ft	421 ft	13:54 UTC
PTK Pontiac, MI	559 nm out, 4 nm east of the line, tower	VFR	from the southwest (230°) at 7 knots	10+ mi	none	980 ft	13:53 UTC
PWK Chicago/Prospect Heights/Wheeling, IL	758 nm out, 6 nm southeast of the line, tower	VFR Sky: scattered clouds at 9,500 feet, scattered clouds at 11,000 feet	from the south-southwest (210°) at 6 knots	10+ mi	none	644 ft	13:52 UTC
DSM Des Moines, IA	1017 nm out, 13 nm north of the line, tower	VFR Sky: a few clouds at 10,000 feet, a few clouds at 20,000 feet, scattered clouds at 25,000 feet	from the south-southwest (200°) at 11 knots, gusting to 19	10+ mi	none	957 ft	13:54 UTC
LNK Lincoln, NE	1157 nm out, 9 nm northwest of the line, tower	VFR	from the south (190°) at 12 knots, gusting to 19	10+ mi	none	1,218 ft	13:54 UTC
COS Colorado Springs, CO	1546 nm out, 6 nm northwest of the line, tower	VFR Sky: a few clouds at 10,000 feet	from the south (190°) at 16 knots, gusting to 25	10+ mi	none	6,187 ft	13:54 UTC
CEZ Cortez, CO	1755 nm out, 9 nm southeast of the line	VFR	from the south-southeast (150°) at 6 knots	10+ mi	none	5,917 ft	13:53 UTC
GCN Grand Canyon, AZ	1945 nm out, 14 nm southeast of the line, tower	IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet Weather: mist	from the south-southwest (210°) at 11 knots, gusting to 17	4 mi	600 ft	6,608 ft	13:54 UTC
IFP Bullhead City, AZ	2065 nm out, 5 nm south of the line, tower	VFR Sky: a broken layer at 7,000 feet, a broken layer at 10,000 feet, a broken layer at 12,000 feet	calm	10+ mi	7,000 ft	707 ft	13:35 UTC
SBD San Bernardino, CA	destination	IFR Sky: a broken layer at 700 feet, overcast at 1,400 feet Weather: rain	from the southwest (220°) at 3 knots	3 mi	700 ft	1,159 ft	7:00 am PDT (14:00 UTC)

The highest airport on this list sits at 6,608 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, 4:41 am PDT (11:41 UTC)

Wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 4,000 feet VFR

The whole forecast for SBD

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, light rain showers, scattered clouds at 1,800 feet, a broken layer at 3,000 feet
At times between Mon 5:00 am PDT (12:00 UTC) and 9:00 am PDT (16:00 UTC): visibility 4 miles, mist, a broken layer at 1,500 feet
From Mon 9:00 am PDT (16:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 1:00 pm PDT (20:00 UTC): wind from the west-southwest at 11 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,000 feet
From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 4,000 feet

The forecast for PSM, the departure

From Mon 8:00 am EDT (12:00 UTC): wind calm, visibility 4 miles, mist, overcast at 1,300 feet
From Mon 9:00 am EDT (13:00 UTC): wind light and variable, visibility 3 miles, mist, a broken layer at 2,000 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the west at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 9 knots, visibility more than 6 miles, a broken layer at 1,500 feet

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

6/8992 Monroe, MI, Thursday, October 15, 2026 Local 24 nm from the route, 559 nm along the route · a VIP movement · starts Thursday 15 October · ZOB
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 24 nm from the route, 1576 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local on the route, 2065 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA

Daylight

Sunset at PSM 6:05 pm EDT (22:05 UTC), at SBD 6:17 pm PDT (01:17 UTC) (civil twilight ends 6:42 pm PDT (01:42 UTC)). At 120 knots the arrival at SBD is before sunrise there (6:52 am PDT (13:52 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: Portsmouth International AT Pease, San Bernardino International.