Dane County Rgnl/Truax Field to Mahlon Sweet Field MSN → EUG
1,463 nautical miles (1,683 statute miles) west on a straight line, true course 284°, about 287° magnetic at the departure end (variation 3W). At 120 knots that is 12 h 18 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 11:34 am PDT (18:34 UTC). Right now MSN is VFR, wind from the south-southwest (200°) at 9 knots; EUG is 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: 7 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 TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 10 to 179 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 299 to 1164 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 617 to 786 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 667 to 816 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 687 to 846 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 716 to 1115 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 776 to 1304 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 985 to 1174 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1124 to 1353 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 209 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
Not fetched just now.
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 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 12 forecast points nearest it (DBQ, LSE, MCW, FSD, PIR, RAP, MLS, BIL, DLN, BOI, RDM, OTH). 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 | 200° at 9 kt | +1 kt | 7 °C | 119 kt | 12 h 18 min | 11:34 am PDT (18:34 UTC) |
| 6,500 ft | 210° at 9 kt | +2 kt | 10 °C | 118 kt | 12 h 24 min | 11:40 am PDT (18:40 UTC) |
| 8,500 ft | 210° at 7 kt | +2 kt | 5 °C | 118 kt | 12 h 24 min | 11:40 am PDT (18:40 UTC) |
| 10,500 ft | 220° at 12 kt | +7 kt | 2 °C | 113 kt | 12 h 57 min | 12:13 pm PDT (19:13 UTC) |
| 12,500 ft | 230° at 17 kt | +12 kt | -1 °C | 108 kt | 13 h 33 min | 12:49 pm PDT (19:49 UTC) |
| 14,500 ft | 240° at 18 kt | +13 kt | -6 °C | 107 kt | 13 h 40 min | 12:56 pm PDT (19:56 UTC) |
| 16,500 ft | 240° at 19 kt | +15 kt | -9 °C | 105 kt | 13 h 56 min | 1:12 pm PDT (20:12 UTC) |
| 18,000 ft FL180 | 240° at 20 kt | +16 kt | -13 °C | 104 kt | 14 h 04 min | 1:20 pm PDT (20:20 UTC) |
| 24,000 ft FL240 | 250° at 26 kt | +22 kt | -23 °C | 98 kt | 14 h 56 min | 2:12 pm PDT (21:12 UTC) |
| 30,000 ft FL300 | 240° at 32 kt | +26 kt | -35 °C | 94 kt | 15 h 34 min | 2:50 pm PDT (21:50 UTC) |
| 34,000 ft FL340 | 240° at 44 kt | +38 kt | -39 °C | 82 kt | 17 h 50 min | 5:06 pm PDT (00:06 UTC) |
| 39,000 ft FL390 | 250° at 51 kt | +46 kt | -45 °C | 74 kt | 19 h 46 min | 7:02 pm PDT (02:02 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DBQ | used from 0 nm out; 62 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| LSE | used from 50 nm out; 29 nm from the line | 230/40 | 240/24 17° | 240/13 10° | 250/13 6° | 280/22 -9° | 250/28 -21° | 250/41 -34° | 260/42 -44° | 270/62 -53° |
| MCW | used from 149 nm out; 38 nm from the line | 220/44 | 250/30 17° | 230/14 12° | 240/17 6° | 250/22 -8° | 270/29 -20° | 250/34 -34° | 260/52 -43° | 260/59 -51° |
| FSD | used from 249 nm out; 62 nm from the line | 190/9 | 230/30 18° | 240/23 13° | 240/20 6° | 260/22 -9° | 250/31 -21° | 250/43 -36° | 260/49 -43° | 270/53 -47° |
| PIR | used from 398 nm out; 58 nm from the line | 170/22 19° | 190/25 13° | 210/32 6° | 240/23 -9° | 250/32 -21° | 250/38 -36° | 260/44 -40° | 260/52 -47° | |
| RAP | used from 547 nm out; 50 nm from the line | 180/23 12° | 200/38 13° | 210/38 6° | 220/28 -10° | 230/34 -21° | 230/37 -36° | 250/52 -38° | 250/59 -46° | |
| MLS | used from 697 nm out; 92 nm from the line | 150/23 2° | 190/29 4° | 210/44 2° | 220/32 -10° | 210/36 -21° | 200/48 -37° | 230/63 -40° | 240/71 -47° | |
| BIL | used from 746 nm out; 82 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| DLN | used from 896 nm out; 86 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° | ||
| BOI | used from 1095 nm out; 85 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| RDM | used from 1244 nm out; 105 nm from the line | 040/17 -1° | 030/31 -8° | 010/29 -12° | 010/61 -19° | 360/95 -25° | 360/82 -36° | 360/40 -37° | 310/19 -40° | |
| OTH | used from 1443 nm out; 70 nm from the line | 040/15 | 040/14 1° | 030/25 -4° | 010/42 -6° | 360/74 -13° | 360/79 -24° | 350/92 -39° | 350/64 -46° | 310/32 -45° |
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 | from the south-southwest (200°) at 9 knots | 10+ mi | none | 886 ft | 12:53 am CDT (05:53 UTC) |
| LSE La Crosse, WI | 90 nm out, 24 nm north of the line, tower | VFR | from the south-southwest (200°) at 12 knots | 10+ mi | none | 655 ft | 05:53 UTC |
| RST Rochester, MN | 149 nm out, 15 nm northeast of the line, tower | VFR | from the south (190°) at 12 knots | 9 mi | none | 1,317 ft | 05:54 UTC |
| HON Huron, SD | 388 nm out, 4 nm west of the line | IFR Sky: overcast at 600 feet | from the north (360°) at 9 knots | 10+ mi | 600 ft | 1,288 ft | 05:55 UTC |
| PIR Pierre, SD | 478 nm out, 12 nm south of the line | IFR Sky: overcast at 800 feet | from the northeast (050°) at 8 knots | 10+ mi | 800 ft | 1,744 ft | 05:53 UTC |
| EFC Belle Fourche, SD | 637 nm out, 5 nm southeast of the line | no report just now | 3,190 ft | ||||
| POY Powell, WY | 846 nm out, 5 nm south of the line | IFR Sky: a broken layer at 500 feet, a broken layer at 2,200 feet, overcast at 3,100 feet Weather: light snow | from the northwest (320°) at 17 knots, gusting to 26 | 4 mi | 500 ft | 5,096 ft | 05:50 UTC |
| WYS West Yellowstone, MT | 945 nm out, 15 nm south of the line | low IFR Sky: a broken layer at 400 feet, overcast at 900 feet Weather: mist, unknown precipitation | from the west (260°) at 3 knots | 2 mi | 400 ft | 6,649 ft | 05:55 UTC |
| MYL Mc Call, ID | 1154 nm out, 8 nm north of the line | VFR Sky: a few clouds at 2,800 feet, overcast at 4,900 feet | calm | 10+ mi | 4,900 ft | 5,024 ft | 05:51 UTC |
| GCD John Day, OR | 1284 nm out, 10 nm southeast of the line | VFR Sky: scattered clouds at 3,500 feet, overcast at 6,500 feet | from the west (280°) at 5 knots | 10+ mi | 6,500 ft | 3,702 ft | 05:55 UTC |
| RDM Redmond, OR | 1373 nm out, 6 nm south of the line, tower | VFR Sky: a few clouds at 8,000 feet | calm | 10+ mi | none | 3,081 ft | 05:56 UTC |
| EUG Eugene, OR | destination | VFR Sky: scattered clouds at 7,000 feet | calm | 10+ mi | none | 373 ft | 10:54 pm PDT (05:54 UTC) |
The highest airport on this list sits at 6,649 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At EUG when you get there the forecast at the estimated arrival, 11:34 am PDT (18:34 UTC)
Wind light and variable, visibility more than 6 miles, clear skies VFR
The whole forecast for EUG
- From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- From Mon 2:00 pm PDT (21:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, clear skies
The forecast for MSN, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 7 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
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, low-level wind shear, a few clouds 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 MSN 6:19 pm CDT (23:19 UTC), at EUG 6:34 pm PDT (01:34 UTC) (civil twilight ends 7:03 pm PDT (02:03 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, Mahlon Sweet Field.
