Plan a flight · Mon 7:35 am EDT (11:35 UTC)

Portland International Jetport to Watertown International PWM → ART

248 nautical miles (286 statute miles) west on a straight line, true course 277°, about 292° magnetic at the departure end (variation 15W). At 120 knots that is 2 h 13 min at the quickest height in today's winds (6,500 ft, a 8-knot headwind), arriving about 9:48 am EDT (13:48 UTC). Right now PWM is VFR, wind from the west (280°) at 3 knots; ART is marginal VFR, 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: 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the whole route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the whole route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 40 to 218 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 PWM.

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

B738 at 28,000 ft, 15 nm south, 6:32 am EDT (10:32 UTC): moderate turbulence, remarks: produced by skypath. 70 nm along the route, 15 nm south of the line.
as filed, and in English
```
1P1 UA /OV CON339022 /TM 1032 /FL280 /TP B738 /TB MOD /RM PRODUCED BY SKYPATH
```
Report
a routine report filed through 1P1
Where
22 nm north (339°) of CON
Time
10:32 UTC
Height
at 28,000 ft
Aircraft
B738
Turbulence
moderate
Remarks
produced by skypath
A321 at 35,000 ft, 44 nm southwest, 7:16 am EDT (11:16 UTC): moderate chop turbulence above 35,000 ft. At the destination end, 44 nm southwest 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
BCS3 at 200 ft, 0 nm south, 7:07 am EDT (11:07 UTC): a routine report with nothing remarked on. At the departure end, 0 nm south 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
E170 at 34,000 ft, 17 nm north, 7:12 am EDT (11:12 UTC): no turbulence. 99 nm along the route, 17 nm north of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 1112/FL340/TP E170/TB NEG
```
Report
a routine report filed through MPV
Where
over MPV
Time
11:12 UTC
Height
at 34,000 ft
Aircraft
E170
Turbulence
none
CRJ7 at 600 ft, 28 nm north, 7:09 am EDT (11:09 UTC): no turbulence, remarks: during the climb. 129 nm along the route, 28 nm north of the line.
as filed, and in English
```
BTV UA /OV 5 SW BTV/TM 1109/FL006/TP CRJ7/SK BASES 006 TOPS 045/TB NEG/RM DURC
```
Report
a routine report filed through BTV
Where
5 southwest btv
Time
11:09 UTC
Height
at 600 ft
Aircraft
CRJ7
Sky
bases 600 ft tops 4,500 ft
Turbulence
none
Remarks
during the climb
B38M at 39,000 ft, 28 nm north, 7:19 am EDT (11:19 UTC): no turbulence. 169 nm along the route, 28 nm north of the line.
as filed, and in English
```
SLK UA /OV SLK/TM 1119/FL390/TP B38M/TB NEG
```
Report
a routine report filed through SLK
Where
over SLK
Time
11:19 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
none
B38M at 39,000 ft, 19 nm north, 7:14 am EDT (11:14 UTC): light clear-air turbulence. 189 nm along the route, 19 nm north of the line.
as filed, and in English
```
PTD UA /OV PTD180030/TM 1114/FL390/TP B38M/TB CONS LGT CAT
```
Report
a routine report filed through PTD
Where
30 nm south (180°) of PTD
Time
11:14 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
continuous light clear-air turbulence
B38M at 39,000 ft, 11 nm north, 7:13 am EDT (11:13 UTC): light chop turbulence above 39,000 ft. 218 nm along the route, 11 nm north of the line.
as filed, and in English
```
ART UA /OV ART080030/TM 1113/FL390/TP B38M/TB OCNL LGT CHOP 390
```
Report
a routine report filed through ART
Where
30 nm east (080°) of ART
Time
11:13 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
occasional light chop at 39,000 ft

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 4 forecast points nearest it (PWM, BML, ALB, SYR). 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	330° at 16 kt	+9 kt		111 kt	2 h 14 min	9:49 am EDT (13:49 UTC)
6,500 ft	330° at 13 kt	+8 kt	9 °C	112 kt	2 h 13 min	9:48 am EDT (13:48 UTC)
8,500 ft	330° at 14 kt	+9 kt	7 °C	111 kt	2 h 14 min	9:49 am EDT (13:49 UTC)
10,500 ft	330° at 17 kt	+9 kt	4 °C	111 kt	2 h 14 min	9:49 am EDT (13:49 UTC)
12,500 ft	330° at 19 kt	+10 kt	0 °C	110 kt	2 h 15 min	9:50 am EDT (13:50 UTC)
14,500 ft	330° at 20 kt	+12 kt	-4 °C	108 kt	2 h 18 min	9:53 am EDT (13:53 UTC)
16,500 ft	320° at 21 kt	+14 kt	-8 °C	106 kt	2 h 20 min	9:55 am EDT (13:55 UTC)
18,000 ft FL180	320° at 22 kt	+15 kt	-11 °C	105 kt	2 h 22 min	9:57 am EDT (13:57 UTC)
24,000 ft FL240	320° at 25 kt	+17 kt	-23 °C	103 kt	2 h 24 min	9:59 am EDT (13:59 UTC)
30,000 ft FL300	300° at 31 kt	+26 kt	-39 °C	94 kt	2 h 38 min	10:13 am EDT (14:13 UTC)
34,000 ft FL340	280° at 37 kt	+37 kt	-45 °C	83 kt	2 h 59 min	10:34 am EDT (14:34 UTC)
39,000 ft FL390	270° at 42 kt	+42 kt	-52 °C	78 kt	3 h 11 min	10:46 am EDT (14:46 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
PWM	used from 0 nm out; 25 nm from the line	320/11	260/11 8°	310/14 5°	310/19 1°	300/26 -11°	290/31 -22°	270/48 -40°	250/60 -43°	250/69 -51°
BML	used from 50 nm out; 60 nm from the line	310/21	350/11 10°	330/9 6°	340/21 0°	310/23 -11°	310/29 -23°	280/39 -40°	280/42 -46°	260/57 -52°
ALB	used from 99 nm out; 72 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; 59 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°

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
PWM Portland, ME	departure	VFR Sky: a few clouds at 300 feet, overcast at 3,300 feet	from the west (280°) at 3 knots	10+ mi	3,300 ft	75 ft	7:15 am EDT (11:15 UTC)
IZG Fryeburg, ME	30 nm out, 17 nm north of the line	VFR Sky: scattered clouds at 100 feet	from the west (270°) at 3 knots	9 mi	none	454 ft	11:11 UTC
LCI Laconia, NH	50 nm out, 10 nm south of the line	VFR Sky: a few clouds at 500 feet, a broken layer at 6,000 feet	calm	10+ mi	6,000 ft	545 ft	10:56 UTC
LEB Lebanon, NH	89 nm out, 11 nm south of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 2,600 feet	calm	10+ mi	400 ft	603 ft	11:01 UTC
LKP Lake Placid, NY	159 nm out, 22 nm north of the line	IFR Sky: overcast at 500 feet Weather: mist	from the northwest (310°) at 3 knots	3 mi	500 ft	1,747 ft	11:15 UTC
ART Watertown, NY	destination	marginal VFR Sky: a broken layer at 1,300 feet, a broken layer at 1,900 feet, overcast at 2,700 feet	from the southwest (220°) at 3 knots	10+ mi	1,300 ft	330 ft	6:56 am EDT (10:56 UTC)

The highest airport on this list sits at 1,747 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ART when you get there the forecast at the estimated arrival, 9:48 am EDT (13:48 UTC)

Wind light and variable, visibility more than 6 miles, a broken layer at 1,000 feet, overcast at 3,500 feet marginal VFR

The whole forecast for ART

From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 1,000 feet, overcast at 3,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, overcast at 700 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, overcast at 1,200 feet
From Mon 10:00 pm EDT (02:00 UTC): wind calm, visibility more than 6 miles, overcast at 1,200 feet
From Mon 11:00 pm EDT (03:00 UTC): wind calm, visibility more than 6 miles, overcast at 700 feet
30% chance between Tue 12:00 am EDT (04:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 4 miles, light rain showers, overcast at 600 feet
From Tue 5:00 am EDT (09:00 UTC): wind light and variable, visibility 6 miles, light rain showers, overcast at 700 feet

The forecast for PWM, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 3 knots, visibility more than 6 miles, a few clouds at 500 feet, a broken layer at 7,000 feet
From Mon 10:30 am EDT (14:30 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind from the north-northeast at 12 knots, gusting to 22, visibility 6 miles, mist, a broken layer at 2,500 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 PWM 6:03 pm EDT (22:03 UTC), at ART 6:25 pm EDT (22:25 UTC) (civil twilight ends 6:54 pm EDT (22:54 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, 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: Portland International Jetport, Watertown International.