Dane County Rgnl/Truax Field to General Edward Lawrence Logan International MSN → BOS
808 nautical miles (930 statute miles) east on a straight line, true course 087°, about 090° magnetic at the departure end (variation 3W). At 120 knots that is 4 h 49 min at the quickest height in today's winds (39,000 ft, a 48-knot tailwind), arriving about 4:26 am EDT (08:26 UTC), after sunset at the destination. Right now MSN is VFR, wind from the south (180°) at 6 knots; BOS is IFR, wind from the east-northeast (060°) at 12 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: 204 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 618 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 349 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the last 249 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 559 to 728 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 180 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 MSN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B39M at 35,000 ft, 38 nm south, 10:15 pm CDT (03:15 UTC): remarks: no inj/dmg zob. 399 nm along the route, 38 nm south 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
- CRJ7 at 20,000 ft, 41 nm north, 7:50 pm CDT (00:50 UTC): moderate turbulence. 688 nm along the route, 41 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
- GLF4 at 10,000 ft, 12 nm south, 8:03 pm CDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. 748 nm along the route, 12 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
- A333 at 15,000 ft, 44 nm north, 8:37 pm CDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. At the destination end, 44 nm north 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, 21 nm southeast, 7:46 pm CDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the destination end, 21 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
- E295 at 37,000 ft, 5 nm southwest, 7:53 pm CDT (00:53 UTC): light chop turbulence. 50 nm along the route, 5 nm southwest of the line.
as filed, and in English
UES UA /OV BAE/TM 0053/FL370/TP E295/TB OCNL LGT CHOP
- Report
- a routine report filed through UES
- Where
- over BAE
- Time
- 00:53 UTC
- Height
- at 37,000 ft
- Aircraft
- E295
- Turbulence
- occasional light chop
- A21N at 31,000 ft, 24 nm north, 7:39 pm CDT (00:39 UTC): light turbulence above 31,000 ft, remarks: zob. 199 nm along the route, 24 nm north of the line.
as filed, and in English
MOP UA /OV MOP/TM 0039/FL310/TP A21N/TB CONS LGT 310/RM ZOB
- Report
- a routine report filed through MOP
- Where
- over MOP
- Time
- 00:39 UTC
- Height
- at 31,000 ft
- Aircraft
- A21N
- Turbulence
- continuous light at 31,000 ft
- Remarks
- zob
- E170 at 21,000 ft, 46 nm south, 8:07 pm CDT (01:07 UTC): light chop turbulence, remarks: during the climb zob. 209 nm along the route, 46 nm south of the line.
as filed, and in English
LAN UA /OV LAN180020/TM 0107/FL210/TP E170/TB LGHT CHOP/RM DURC ZOB
- Report
- a routine report filed through LAN
- Where
- 20 nm south (180°) of LAN
- Time
- 01:07 UTC
- Height
- at 21,000 ft
- Aircraft
- E170
- Turbulence
- lght chop
- Remarks
- during the climb zob
- A320 descending, 16 nm south, 8:35 pm CDT (01:35 UTC): overcast from 1,900 ft to 3,000 ft, remarks: on final runway 09 fnt. 239 nm along the route, 16 nm south of the line.
as filed, and in English
FNT UA /OV FNT270008/TM 0135/FLDURD/TP A320/SK OVC019 - TOP030/RM ON FINAL RY09 FNT
- Report
- a routine report filed through FNT
- Where
- 8 nm west (270°) of FNT
- Time
- 01:35 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- overcast from 1,900 ft, tops 3,000 ft
- Remarks
- on final runway 09 fnt
- A320 descending, 16 nm south, 9:09 pm CDT (02:09 UTC): overcast from 1,600 ft to 3,000 ft, remarks: on final runway 18 fnt. 249 nm along the route, 16 nm south of the line.
as filed, and in English
FNT UA /OV FNT/TM 0209/FLDURD/TP A320/SK OVC016 - TOP030/RM ON FINAL RY18 FNT
- Report
- a routine report filed through FNT
- Where
- over FNT
- Time
- 02:09 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- overcast from 1,600 ft, tops 3,000 ft
- Remarks
- on final runway 18 fnt
- C560 at 3,000 ft, 33 nm south, 9:28 pm CDT (02:28 UTC): a routine report with nothing remarked on. 259 nm along the route, 33 nm south of the line.
as filed, and in English
PTK UA /OV 6 W/TM 0228/FL030/TP C560/SK BASES 019 TOPS 030 OVC
- Report
- a routine report filed through PTK
- Where
- 6 west
- Time
- 02:28 UTC
- Height
- at 3,000 ft
- Aircraft
- C560
- Sky
- bases 1,900 ft tops 3,000 ft overcast
- C25B at 2,000 ft, 33 nm south, 9:18 pm CDT (02:18 UTC): a routine report with nothing remarked on. 259 nm along the route, 33 nm south of the line.
as filed, and in English
PTK UA /OV 2 W/TM 0218/FL020/TP C25B/SK BASES 020 OVC
- Report
- a routine report filed through PTK
- Where
- 2 west
- Time
- 02:18 UTC
- Height
- at 2,000 ft
- Aircraft
- C25B
- Sky
- bases 2,000 ft overcast
- SR22 at 1,300 ft, 33 nm south, 8:25 pm CDT (01:25 UTC): a routine report with nothing remarked on. 259 nm along the route, 33 nm south of the line.
as filed, and in English
PTK UA /OV PTK270003/TM 0125/FL013/TP SR22/SK BASES 019 OVC
- Report
- a routine report filed through PTK
- Where
- 3 nm west (270°) of PTK
- Time
- 01:25 UTC
- Height
- at 1,300 ft
- Aircraft
- SR22
- Sky
- bases 1,900 ft overcast
- C550 at 2,300 ft, 33 nm south, 7:46 pm CDT (00:46 UTC): remarks: fis 4 mile final. 259 nm along the route, 33 nm south of the line.
as filed, and in English
PTK UA /OV 4W/TM 0046/FL023/TP C550/RM FIS 4 MILE FINAL
- Report
- a routine report filed through PTK
- Where
- 4W
- Time
- 00:46 UTC
- Height
- at 2,300 ft
- Aircraft
- C550
- Remarks
- fis 4 mile final
14 more routine reports are on the map.
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 8 forecast points nearest it (GRB, MKG, CLE, BUF, SYR, ALB, BDL, BOS). 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 | 280° at 8 kt | −8 kt | 128 kt | 6 h 19 min | 5:56 am EDT (09:56 UTC) | |
| 5,500 ft | 310° at 10 kt | −8 kt | 128 kt | 6 h 19 min | 5:56 am EDT (09:56 UTC) | |
| 7,500 ft | 320° at 11 kt | −8 kt | 10 °C | 128 kt | 6 h 19 min | 5:56 am EDT (09:56 UTC) |
| 9,500 ft | 310° at 11 kt | −8 kt | 7 °C | 128 kt | 6 h 19 min | 5:56 am EDT (09:56 UTC) |
| 11,500 ft | 300° at 11 kt | −10 kt | 3 °C | 130 kt | 6 h 13 min | 5:50 am EDT (09:50 UTC) |
| 13,500 ft | 290° at 14 kt | −13 kt | -1 °C | 133 kt | 6 h 05 min | 5:42 am EDT (09:42 UTC) |
| 15,500 ft | 290° at 18 kt | −17 kt | -5 °C | 137 kt | 5 h 54 min | 5:31 am EDT (09:31 UTC) |
| 17,500 ft | 290° at 22 kt | −20 kt | -9 °C | 140 kt | 5 h 46 min | 5:23 am EDT (09:23 UTC) |
| 18,000 ft FL180 | 290° at 23 kt | −21 kt | -10 °C | 141 kt | 5 h 44 min | 5:21 am EDT (09:21 UTC) |
| 24,000 ft FL240 | 280° at 26 kt | −25 kt | -21 °C | 145 kt | 5 h 34 min | 5:11 am EDT (09:11 UTC) |
| 30,000 ft FL300 | 290° at 34 kt | −30 kt | -36 °C | 150 kt | 5 h 23 min | 5:00 am EDT (09:00 UTC) |
| 34,000 ft FL340 | 280° at 44 kt | −41 kt | -43 °C | 161 kt | 5 h 01 min | 4:38 am EDT (08:38 UTC) |
| 39,000 ft FL390 | 280° at 50 kt | −48 kt | -51 °C | 168 kt | 4 h 49 min | 4:26 am EDT (08:26 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GRB | used from 0 nm out; 84 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| MKG | used from 50 nm out; 61 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° |
| CLE | used from 249 nm out; 121 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; 91 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 499 nm out; 57 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 648 nm out; 10 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° |
| BDL | used from 698 nm out; 40 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| BOS | used from 748 nm out; 35 nm from the line | 110/20 | 200/26 12° | 280/24 8° | 260/29 3° | 250/47 -10° | 230/59 -19° | 230/74 -33° | 240/95 -41° | 240/96 -53° |
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 |
|---|---|---|---|---|---|---|---|
| MSN Madison, WI | departure | VFR Sky: scattered clouds at 25,000 feet | from the south (180°) at 6 knots | 10+ mi | none | 886 ft | 9:53 pm CDT (02:53 UTC) |
| MWC Milwaukee, WI | 60 nm out, 5 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 4 knots | 10+ mi | none | 744 ft | 03:15 UTC |
| MKG Muskegon, MI | 140 nm out, 5 nm southwest of the line, tower | VFR Sky: a few clouds at 25,000 feet | from the south-southeast (150°) at 4 knots | 10+ mi | none | 628 ft | 02:55 UTC |
| MBS Saginaw, MI | 229 nm out, 19 nm north of the line, tower | VFR | from the south (180°) at 7 knots | 10+ mi | none | 668 ft | 02:53 UTC |
| FNT Flint, MI | 249 nm out, 16 nm south of the line, tower | marginal VFR Sky: overcast at 1,400 feet | from the south-southwest (210°) at 3 knots | 10+ mi | 1,400 ft | 782 ft | 02:53 UTC |
| CYQS St Thomas, | 359 nm out, 23 nm south of the line | no report just now | 776 ft | ||||
| IAG Niagara Falls, NY | 459 nm out, 5 nm northwest of the line, tower | VFR Sky: scattered clouds at 4,300 feet, a broken layer at 6,000 feet | calm | 10+ mi | 6,000 ft | 592 ft | 02:53 UTC |
| ROC Rochester, NY | 509 nm out, 8 nm north of the line, tower | VFR Sky: scattered clouds at 400 feet, a broken layer at 12,000 feet | from the southeast (130°) at 4 knots | 10+ mi | 12,000 ft | 558 ft | 02:54 UTC |
| SYR Syracuse, NY | 579 nm out, 14 nm north of the line, tower | VFR Sky: a few clouds at 600 feet, a broken layer at 5,000 feet, overcast at 6,500 feet Weather: light rain | from the east-northeast (070°) at 6 knots | 9 mi | 5,000 ft | 421 ft | 02:54 UTC |
| ALB Albany, NY | 678 nm out, 6 nm northeast of the line, tower | low IFR Sky: overcast at 400 feet Weather: light rain, mist | from the north-northwest (330°) at 5 knots | 3 mi | 400 ft | 284 ft | 03:33 UTC |
| ORH Worcester, MA | 768 nm out, 12 nm south of the line, tower | low IFR Sky: overcast at 200 feet Weather: light rain, mist | from the northeast (040°) at 11 knots, gusting to 17 | 3 mi | 200 ft | 1,009 ft | 03:23 UTC |
| BOS Boston, MA | destination | IFR Sky: a few clouds at 700 feet, a broken layer at 1,700 feet, overcast at 4,100 feet Weather: heavy rain, mist | from the east-northeast (060°) at 12 knots | 2.5 mi | 1,700 ft | 19 ft | 11:10 pm EDT (03:10 UTC) |
The highest airport on this list sits at 1,009 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOS when you get there the forecast at the estimated arrival, 4:26 am EDT (08:26 UTC)
Wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet low IFR
The whole forecast for BOS
- From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
- From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 feet
The forecast for MSN, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Sun 11:00 pm CDT (04:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 25,000 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 17 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at MSN 6:19 pm CDT (23:19 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 UTC)). At 120 knots the arrival at BOS is before sunrise there (6:53 am EDT (10:53 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







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: Dane County Rgnl/Truax Field, General Edward Lawrence Logan International.
