Plan a flight · Mon 1:01 am CDT (06:01 UTC)

Chicago Executive to Pittsfield Municipal PWK → PSF

649 nautical miles (746 statute miles) east on a straight line, true course 083°, about 085° magnetic at the departure end (variation 2W). At 120 knots that is 4 h 05 min at the quickest height in today's winds (39,000 ft, a 39-knot tailwind), arriving about 6:06 am EDT (10:06 UTC), after sunset at the destination. Right now PWK is VFR, wind calm; PSF is IFR, wind from the north (350°) at 4 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 last 599 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 210 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 200 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the last 20 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 PWK.

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

urgent B39M at 35,000 ft, 5 nm east, 10:15 pm CDT (03:15 UTC): remarks: no inj/dmg zob. 339 nm along the route, 5 nm east of the line.
as filed, and in English
```
DKK UUA /OV DKK280040/TM 0315/FL350/TP B39M/TB MTN WVE ACTN +/-5KTS/RM NO INJ/DMG ZOB
```
Report
an urgent report filed through DKK
Where
40 nm west (280°) of DKK
Time
03:15 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
mountain wve actn a 5-knot loss of airspeed
Remarks
no inj/dmg zob
B738 at 1,800 ft, 48 nm south, 12:18 am CDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 180 nm along the route, 48 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B738 at 1,300 ft, 48 nm south, 11:45 pm CDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 180 nm along the route, 48 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent
A333 descending, 12 nm south, 12:44 am CDT (05:44 UTC): a routine report with nothing remarked on. 200 nm along the route, 12 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 12 nm south, 11:54 pm CDT (04:54 UTC): a routine report with nothing remarked on. 200 nm along the route, 12 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
A320 descending, 12 nm south, 10:27 pm CDT (03:27 UTC): overcast above 1,400 ft. 200 nm along the route, 12 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
```
Report
a routine report filed through DTW
Where
over DTW
Time
03:27 UTC
Height
during the descent
Aircraft
A320
Sky
at 1,400 ft overcast

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 7 forecast points nearest it (JOT, MKG, FWA, CLE, BUF, SYR, ALB). 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	290° at 9 kt	−8 kt		128 kt	5 h 04 min	7:05 am EDT (11:05 UTC)
5,500 ft	330° at 11 kt	−6 kt		126 kt	5 h 09 min	7:10 am EDT (11:10 UTC)
7,500 ft	330° at 11 kt	−5 kt	10 °C	125 kt	5 h 12 min	7:13 am EDT (11:13 UTC)
9,500 ft	330° at 10 kt	−5 kt	7 °C	125 kt	5 h 12 min	7:13 am EDT (11:13 UTC)
11,500 ft	320° at 10 kt	−6 kt	3 °C	126 kt	5 h 09 min	7:10 am EDT (11:10 UTC)
13,500 ft	310° at 13 kt	−9 kt	-1 °C	129 kt	5 h 02 min	7:03 am EDT (11:03 UTC)
15,500 ft	310° at 17 kt	−13 kt	-5 °C	133 kt	4 h 53 min	6:54 am EDT (10:54 UTC)
17,500 ft	310° at 22 kt	−17 kt	-9 °C	137 kt	4 h 44 min	6:45 am EDT (10:45 UTC)
18,000 ft FL180	300° at 23 kt	−18 kt	-10 °C	138 kt	4 h 42 min	6:43 am EDT (10:43 UTC)
24,000 ft FL240	300° at 28 kt	−23 kt	-21 °C	143 kt	4 h 32 min	6:33 am EDT (10:33 UTC)
30,000 ft FL300	310° at 35 kt	−26 kt	-37 °C	146 kt	4 h 27 min	6:28 am EDT (10:28 UTC)
34,000 ft FL340	300° at 43 kt	−36 kt	-43 °C	156 kt	4 h 10 min	6:11 am EDT (10:11 UTC)
39,000 ft FL390	300° at 46 kt	−39 kt	-50 °C	159 kt	4 h 05 min	6:06 am EDT (10:06 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
JOT	used from 0 nm out; 54 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
MKG	used from 50 nm out; 55 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°
FWA	used from 150 nm out; 100 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CLE	used from 200 nm out; 76 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 349 nm out; 42 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 449 nm out; 61 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°
ALB	used from 549 nm out; 54 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°

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
PWK Chicago/Prospect Heights/Wheeling, IL	departure	VFR	calm	10+ mi	none	644 ft	12:52 am CDT (05:52 UTC)
BTL Battle Creek, MI	120 nm out, 1 nm west of the line, tower	VFR	from the south (190°) at 6 knots	10+ mi	none	951 ft	05:53 UTC
JXN Jackson, MI	150 nm out, 7 nm southeast of the line, tower	low IFR Weather: fog	from the south-southwest (210°) at 3 knots	0.5 mi	none	1,000 ft	05:56 UTC
DET Detroit, MI	220 nm out, 2 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the west (280°) at 6 knots	10+ mi	1,100 ft	624 ft	05:53 UTC
CYQS St Thomas,	299 nm out, 17 nm north of the line	no report just now				776 ft
DKK Dunkirk, NY	379 nm out, 5 nm east of the line	VFR Sky: a broken layer at 9,500 feet	from the south-southwest (210°) at 4 knots	10+ mi	9,500 ft	692 ft	05:53 UTC
BUF Buffalo, NY	409 nm out, 25 nm north of the line, tower	VFR Sky: scattered clouds at 12,000 feet, a broken layer at 14,000 feet	from the south (170°) at 3 knots	10+ mi	14,000 ft	726 ft	05:54 UTC
ITH Ithaca, NY	509 nm out, 2 nm southwest of the line, tower	IFR Sky: a broken layer at 500 feet Weather: mist	calm	1 mi	500 ft	1,099 ft	05:56 UTC
BGM Binghamton, NY	529 nm out, 18 nm south of the line, tower	marginal VFR Sky: overcast at 1,900 feet	from the north-northwest (330°) at 3 knots	10+ mi	1,900 ft	1,635 ft	05:53 UTC
ALB Albany, NY	629 nm out, 18 nm north of the line, tower	IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet Weather: light drizzle, mist	from the north (350°) at 5 knots	5 mi	600 ft	284 ft	05:51 UTC
PSF Pittsfield, MA	destination	IFR Sky: overcast at 800 feet	from the north (350°) at 4 knots	10+ mi	800 ft	1,188 ft	1:54 am EDT (05:54 UTC)

The highest airport on this list sits at 1,635 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PSF when you get there the forecast at the estimated arrival, 6:06 am EDT (10:06 UTC)

Wind calm, visibility 1½ miles, light drizzle, mist, overcast at 500 feet IFR

The whole forecast for PSF

From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility 4 miles, light drizzle, mist, overcast at 700 feet
At times between Mon 2:00 am EDT (06:00 UTC) and 4:00 am EDT (08:00 UTC): visibility 2 miles, light drizzle, mist, overcast at 500 feet
From Mon 4:00 am EDT (08:00 UTC): wind calm, visibility 1½ miles, light drizzle, mist, overcast at 500 feet
From Mon 7:00 am EDT (11:00 UTC): wind from the northwest at 3 knots, visibility 3 miles, mist, overcast at 600 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the northwest at 5 knots, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 1,500 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the west-northwest at 9 knots, visibility more than 6 miles, a broken layer at 3,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 2,000 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 PWK 6:15 pm CDT (23:15 UTC), at PSF 6:16 pm EDT (22:16 UTC) (civil twilight ends 6:44 pm EDT (22:44 UTC)). At 120 knots the arrival at PSF is before sunrise there (7:02 am EDT (11:02 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 upper Mississippi valley · loop National Weather Service

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

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: Chicago Executive, Pittsfield Municipal.