General Edward Lawrence Logan International to Dane County Rgnl/Truax Field BOS → MSN
808 nautical miles (930 statute miles) west on a straight line, true course 280°, about 295° magnetic at the departure end (variation 15W). At 120 knots that is 6 h 47 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 2:51 am CDT (07:51 UTC), after sunset at the destination. Right now BOS is marginal VFR, wind from the east (080°) at 8 knots; MSN is VFR, wind from the south (190°) at 8 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 first 259 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 24,000 ft. Over the first 329 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 329 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 349 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 259 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, 249 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 route from 509 to 539 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 BOS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 9 forecast points nearest it (BOS, BDL, ALB, SYR, BUF, CLE, MKG, GRB, DBQ). 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 | 190° at 9 kt | +1 kt | 119 kt | 6 h 47 min | 2:51 am CDT (07:51 UTC) | |
| 6,500 ft | 240° at 8 kt | +5 kt | 11 °C | 115 kt | 7 h 02 min | 3:06 am CDT (08:06 UTC) |
| 8,500 ft | 260° at 10 kt | +9 kt | 8 °C | 111 kt | 7 h 17 min | 3:21 am CDT (08:21 UTC) |
| 10,500 ft | 270° at 11 kt | +11 kt | 5 °C | 109 kt | 7 h 25 min | 3:29 am CDT (08:29 UTC) |
| 12,500 ft | 280° at 13 kt | +12 kt | 1 °C | 108 kt | 7 h 29 min | 3:33 am CDT (08:33 UTC) |
| 14,500 ft | 270° at 15 kt | +14 kt | -2 °C | 106 kt | 7 h 37 min | 3:41 am CDT (08:41 UTC) |
| 16,500 ft | 270° at 17 kt | +16 kt | -7 °C | 104 kt | 7 h 46 min | 3:50 am CDT (08:50 UTC) |
| 18,000 ft FL180 | 270° at 18 kt | +18 kt | -10 °C | 102 kt | 7 h 55 min | 3:59 am CDT (08:59 UTC) |
| 24,000 ft FL240 | 260° at 23 kt | +22 kt | -21 °C | 98 kt | 8 h 15 min | 4:19 am CDT (09:19 UTC) |
| 30,000 ft FL300 | 260° at 35 kt | +32 kt | -35 °C | 88 kt | 9 h 11 min | 5:15 am CDT (10:15 UTC) |
| 34,000 ft FL340 | 250° at 50 kt | +45 kt | -43 °C | 75 kt | 10 h 46 min | 6:50 am CDT (11:50 UTC) |
| 39,000 ft FL390 | 250° at 59 kt | +54 kt | -51 °C | 66 kt | 12 h 15 min | 8:19 am CDT (13:19 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; 25 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° |
| BDL | used from 50 nm out; 37 nm from the line | 140/28 | 180/29 10° | 220/38 8° | 250/30 3° | 250/40 -8° | 240/46 -18° | 240/58 -32° | 240/80 -41° | 240/89 -55° |
| ALB | used from 100 nm out; 5 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 199 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 299 nm out; 20 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 449 nm out; 106 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° |
| MKG | used from 549 nm out; 99 nm from the line | 250/5 | 320/10 15° | 310/19 9° | 320/21 3° | 310/23 -10° | 330/37 -22° | 330/51 -38° | 320/44 -47° | 300/60 -49° |
| GRB | used from 748 nm out; 81 nm from the line | 240/24 | 260/18 16° | 270/20 11° | 290/14 4° | 280/24 -9° | 300/34 -21° | 310/51 -38° | 310/54 -48° | 300/71 -51° |
| DBQ | used from 798 nm out; 79 nm from the line | 220/23 | 240/22 16° | 240/24 10° | 260/18 5° | 270/16 -8° | 290/27 -19° | 310/42 -35° | 320/55 -44° | 300/71 -52° |
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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 2,400 feet, overcast at 3,500 feet Weather: heavy rain, mist | from the east (080°) at 8 knots | 3 mi | 2,400 ft | 19 ft | 8:54 pm EDT (00:54 UTC) |
| ORH Worcester, MA | 40 nm out, 12 nm south of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: heavy rain, mist | from the northeast (040°) at 7 knots | 0.75 mi | 200 ft | 1,009 ft | 00:54 UTC |
| ALB Albany, NY | 130 nm out, 6 nm northeast of the line, tower | marginal VFR Sky: overcast at 1,000 feet Weather: light rain, mist | from the north (360°) at 4 knots | 4 mi | 1,000 ft | 284 ft | 00:51 UTC |
| SYR Syracuse, NY | 229 nm out, 14 nm north of the line, tower | VFR Sky: a few clouds at 700 feet, a broken layer at 5,500 feet, overcast at 11,000 feet Weather: light rain | from the east-northeast (060°) at 7 knots | 10+ mi | 5,500 ft | 421 ft | 00:54 UTC |
| ROC Rochester, NY | 299 nm out, 8 nm north of the line, tower | VFR Sky: scattered clouds at 400 feet, a broken layer at 5,000 feet, overcast at 6,500 feet | from the east-southeast (110°) at 5 knots | 10+ mi | 5,000 ft | 558 ft | 00:54 UTC |
| IAG Niagara Falls, NY | 349 nm out, 5 nm northwest of the line, tower | VFR Sky: a broken layer at 4,400 feet | from the east (080°) at 8 knots | 10+ mi | 4,400 ft | 592 ft | 00:53 UTC |
| CYQS St Thomas, | 449 nm out, 23 nm south of the line | no report just now | 776 ft | ||||
| FNT Flint, MI | 559 nm out, 16 nm south of the line, tower | marginal VFR Sky: overcast at 1,100 feet | calm | 10+ mi | 1,100 ft | 782 ft | 00:53 UTC |
| MBS Saginaw, MI | 579 nm out, 19 nm north of the line, tower | VFR | from the south (180°) at 5 knots | 10+ mi | none | 668 ft | 00:53 UTC |
| MKG Muskegon, MI | 668 nm out, 5 nm southwest of the line, tower | VFR Sky: scattered clouds at 25,000 feet | calm | 10+ mi | none | 628 ft | 00:55 UTC |
| MWC Milwaukee, WI | 748 nm out, 5 nm southwest of the line, tower | VFR | from the south (170°) at 4 knots | 10+ mi | none | 744 ft | 00:55 UTC |
| MSN Madison, WI | destination | VFR | from the south (190°) at 8 knots | 10+ mi | none | 886 ft | 7:53 pm CDT (00:53 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 MSN when you get there the forecast at the estimated arrival, 2:51 am CDT (07:51 UTC)
Wind from the south at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet VFR
The whole forecast for MSN
- 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
The forecast for BOS, the departure
- 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
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 departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at MSN 6:19 pm CDT (23:19 UTC) (civil twilight ends 6:48 pm CDT (23:48 UTC)). At 120 knots the arrival at MSN is before sunrise there (7:07 am CDT (12:07 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: General Edward Lawrence Logan International, Dane County Rgnl/Truax Field.