Plan a flight · Sun 8:47 pm EDT (00:47 UTC)

Portsmouth International AT Pease to Willow Run Airport PSM → YIP

563 nautical miles (648 statute miles) west on a straight line, true course 269°, about 285° magnetic at the departure end (variation 16W). At 120 knots that is 4 h 42 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 1:29 am EDT (05:29 UTC), after sunset at the destination. Right now PSM is VFR, wind from the south (170°) at 4 knots; YIP is marginal VFR, wind calm. 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 ZULU 1C: moderate icing up to 24,000 ft. Over the first 326 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 346 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 346 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 59 to 276 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 237 to 296 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). Near the route, 257 nm along the route.
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 39 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

BCS3 at 13,000 ft, 43 nm south, 7:03 pm EDT (23:03 UTC): moderate turbulence from 13,000 ft to 16,000 ft, heavy rain, remarks: during the climb. At the departure end, 43 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS18005/TM 2303/FL130/TP BCS3/WX +RA/TB MOD 130-160/RM DURC
```
Report
a routine report filed through BOS
Where
BOS18005
Time
23:03 UTC
Height
at 13,000 ft
Aircraft
BCS3
Weather
heavy rain
Turbulence
moderate from 13,000 ft to 16,000 ft
Remarks
during the climb
GLEX at 26,000 ft, 3 nm southwest, 7:54 pm EDT (23:54 UTC): moderate clear-air turbulence. 109 nm along the route, 3 nm southwest 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
A388 at 34,000 ft, 45 nm south, 7:19 pm EDT (23:19 UTC): moderate chop turbulence. 128 nm along the route, 45 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
E75 at 34,000 ft, 5 nm northwest, 7:15 pm EDT (23:15 UTC): moderate turbulence. 188 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
RME UA /OV UCA/TM 2315/FL340/TP E75/TB CONS MOD
```
Report
a routine report filed through RME
Where
over UCA
Time
23:15 UTC
Height
at 34,000 ft
Aircraft
E75
Turbulence
continuous moderate
A21N at 35,000 ft, 5 nm northwest, 6:57 pm EDT (22:57 UTC): moderate turbulence. 188 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
RME UA /OV UCA/TM 2257/FL350/TP A21N/TB CONS MOD
```
Report
a routine report filed through RME
Where
over UCA
Time
22:57 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
continuous moderate
CRJ7 at 33,000 ft, 24 nm south, 6:31 pm EDT (22:31 UTC): moderate turbulence. 247 nm along the route, 24 nm south of the line.
as filed, and in English
```
ITH UA /OV ITH/TM 2231/FL330/TP CRJ7/TB MOD
```
Report
a routine report filed through ITH
Where
over ITH
Time
22:31 UTC
Height
at 33,000 ft
Aircraft
CRJ7
Turbulence
moderate
E75L at 31,000 ft, 24 nm south, 6:27 pm EDT (22:27 UTC): moderate turbulence. 247 nm along the route, 24 nm south of the line.
as filed, and in English
```
ITH UA /OV ITH/TM 2227/FL310/TP E75L/TB CONS MOD
```
Report
a routine report filed through ITH
Where
over ITH
Time
22:27 UTC
Height
at 31,000 ft
Aircraft
E75L
Turbulence
continuous moderate
DH8D at 19,000 ft, 19 nm north, 7:35 pm EDT (23:35 UTC): moderate chop turbulence, remarks: zob. 296 nm along the route, 19 nm north 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
E170 at 25,000 ft, 9 nm north, 6:37 pm EDT (22:37 UTC): moderate turbulence above 25,000 ft, remarks: zob. 336 nm along the route, 9 nm north of the line.
as filed, and in English
```
BUF UA /OV BUF120010/TM 2237/FL250/TP E170/TB MOD 250/RM ZOB
```
Report
a routine report filed through BUF
Where
10 nm southeast (120°) of BUF
Time
22:37 UTC
Height
at 25,000 ft
Aircraft
E170
Turbulence
moderate at 25,000 ft
Remarks
zob
BCS3 at 700 ft, 40 nm south, 7:56 pm EDT (23:56 UTC): a broken layer above 700 ft, remarks: during the descent runway 22L bos. At the departure end, 40 nm south of the line.
as filed, and in English
```
BOS UA /OV KBOS040003/TM 2356/FL007/TP BCS3/SK BKN007/RM DURD RY 22L BOS
```
Report
a routine report filed through BOS
Where
3 nm northeast (040°) of KBOS
Time
23:56 UTC
Height
at 700 ft
Aircraft
BCS3
Sky
a broken layer from 700 ft
Remarks
during the descent runway 22L bos
A321 at 1,900 ft, 38 nm south, 6:55 pm EDT (22:55 UTC): rain, remarks: during the descent runway 22L bos. At the departure end, 38 nm south of the line.
as filed, and in English
```
BOS UA /OV KBOS040005/TM 2255/FL019/TP A321/WX FV05SM RA/RM DURD RY 22L BOS
```
Report
a routine report filed through BOS
Where
5 nm northeast (040°) of KBOS
Time
22:55 UTC
Height
at 1,900 ft
Aircraft
A321
Weather
flight visibility 5 miles, rain
Remarks
during the descent runway 22L bos
B763 at 35,000 ft, 43 nm south, 6:25 pm EDT (22:25 UTC): light chop turbulence. At the departure end, 43 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 2225/FL350/TP B763/TB LGT CHOP
```
Report
a routine report filed through BOS
Where
over BOS
Time
22:25 UTC
Height
at 35,000 ft
Aircraft
B763
Turbulence
light chop
E55P at 5,000 ft, 43 nm south, 5:51 pm EDT (21:51 UTC): rain. 39 nm along the route, 43 nm south of the line.
as filed, and in English
```
BOS UA /OV BED260017/TM 2151/FL050/TP E55P/WX RA
```
Report
a routine report filed through BOS
Where
17 nm west (260°) of BED
Time
21:51 UTC
Height
at 5,000 ft
Aircraft
E55P
Weather
rain
CL60 at 5,000 ft, 48 nm south, 5:55 pm EDT (21:55 UTC): light to moderate chop turbulence. 49 nm along the route, 48 nm south of the line.
as filed, and in English
```
BDL UA /OV KORH/TM 2155/FL050/TP CL60/TB LGT-MOD CHOP
```
Report
a routine report filed through BDL
Where
over KORH
Time
21:55 UTC
Height
at 5,000 ft
Aircraft
CL60
Turbulence
light to moderate chop

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 5 forecast points nearest it (BOS, ALB, SYR, BUF, CLE). 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	180° at 12 kt	0		120 kt	4 h 42 min	1:29 am EDT (05:29 UTC)
6,500 ft	210° at 9 kt	+5 kt	10 °C	115 kt	4 h 54 min	1:41 am EDT (05:41 UTC)
8,500 ft	230° at 8 kt	+6 kt	7 °C	114 kt	4 h 56 min	1:43 am EDT (05:43 UTC)
10,500 ft	240° at 10 kt	+8 kt	4 °C	112 kt	5 h 02 min	1:49 am EDT (05:49 UTC)
12,500 ft	250° at 11 kt	+11 kt	1 °C	109 kt	5 h 10 min	1:57 am EDT (05:57 UTC)
14,500 ft	250° at 14 kt	+13 kt	-3 °C	107 kt	5 h 16 min	2:03 am EDT (06:03 UTC)
16,500 ft	250° at 16 kt	+15 kt	-7 °C	105 kt	5 h 22 min	2:09 am EDT (06:09 UTC)
18,000 ft FL180	250° at 17 kt	+17 kt	-10 °C	103 kt	5 h 28 min	2:15 am EDT (06:15 UTC)
24,000 ft FL240	240° at 28 kt	+24 kt	-21 °C	96 kt	5 h 52 min	2:39 am EDT (06:39 UTC)
30,000 ft FL300	230° at 46 kt	+38 kt	-34 °C	82 kt	6 h 52 min	3:39 am EDT (07:39 UTC)
34,000 ft FL340	240° at 66 kt	+58 kt	-41 °C	62 kt	9 h 05 min	5:52 am EDT (09:52 UTC)
39,000 ft FL390	240° at 69 kt	+60 kt	-51 °C	60 kt	9 h 23 min	6:10 am EDT (10:10 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; 46 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 49 nm out; 60 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 197 nm out; 15 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 296 nm out; 29 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 444 nm out; 67 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°

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: scattered clouds at 5,500 feet, a broken layer at 11,000 feet, overcast at 20,000 feet Weather: light rain	from the south (170°) at 4 knots	7 mi	11,000 ft	100 ft	7:55 pm EDT (23:55 UTC)
MHT Manchester, NH	30 nm out, 9 nm south of the line, tower	VFR Sky: a few clouds at 6,000 feet, overcast at 10,000 feet Weather: light rain	from the south-southeast (160°) at 3 knots	10+ mi	10,000 ft	266 ft	23:53 UTC
DDH Bennington, VT	109 nm out, 8 nm south of the line	VFR Sky: scattered clouds at 2,400 feet, a broken layer at 4,400 feet, overcast at 8,500 feet Weather: light rain, mist	calm	6 mi	4,400 ft	826 ft	00:27 UTC
SCH Schenectady, NY	138 nm out, 9 nm south of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 1,400 feet, overcast at 2,200 feet Weather: rain	from the north-northeast (030°) at 4 knots	7 mi	600 ft	377 ft	23:59 UTC
RME Rome, NY	197 nm out, 18 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,500 feet, a broken layer at 5,000 feet, overcast at 10,000 feet Weather: light rain	from the east (100°) at 6 knots	10+ mi	1,500 ft	504 ft	00:43 UTC
SYR Syracuse, NY	227 nm out, 13 nm northwest of the line, tower	VFR Sky: a few clouds at 700 feet, a broken layer at 6,500 feet, overcast at 11,000 feet Weather: light rain	from the east-northeast (060°) at 8 knots	7 mi	6,500 ft	421 ft	23:54 UTC
ROC Rochester, NY	296 nm out, 19 nm north of the line, tower	VFR Sky: scattered clouds at 400 feet, overcast at 5,500 feet	from the east-southeast (110°) at 6 knots	8 mi	5,500 ft	558 ft	00:37 UTC
BUF Buffalo, NY	346 nm out, 13 nm north of the line, tower	VFR Sky: overcast at 4,900 feet	from the east-northeast (070°) at 3 knots	10+ mi	4,900 ft	726 ft	23:54 UTC
CYQS St Thomas,	454 nm out, 16 nm north of the line	no report just now				776 ft
DET Detroit, MI	543 nm out, 8 nm northeast of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 900 feet Weather: mist	calm	6 mi	400 ft	624 ft	00:30 UTC
YIP Detroit, MI	destination	marginal VFR Sky: overcast at 2,200 feet	calm	10+ mi	2,200 ft	715 ft	7:53 pm EDT (23:53 UTC)

The highest airport on this list sits at 826 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At YIP when you get there the forecast at the estimated arrival, 1:29 am EDT (05:29 UTC)

Wind light and variable, visibility more than 6 miles, overcast at 1,400 feet marginal VFR

The whole forecast for YIP

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 4 knots, visibility more than 6 miles, a broken layer at 1,000 feet, overcast at 1,500 feet
From Sun 11:00 pm EDT (03:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,400 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, a broken layer at 400 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 11 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet

The forecast for PSM, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind calm, visibility more than 6 miles, light rain, a broken layer at 9,000 feet, overcast at 20,000 feet
From Sun 10:00 pm EDT (02:00 UTC): wind light and variable, visibility 5 miles, light rain, mist, overcast at 900 feet
From Mon 12:00 am EDT (04:00 UTC): wind light and variable, visibility 3 miles, light rain, overcast at 500 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 2,500 feet, overcast at 6,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a broken layer at 25,000 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at PSM 6:05 pm EDT (22:05 UTC), at YIP 6:57 pm EDT (22:57 UTC) (civil twilight ends 7:25 pm EDT (23:25 UTC)). At 120 knots the arrival at YIP is before sunrise there (7:43 am EDT (11:43 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, 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, Willow Run Airport.