Mahlon Sweet Field to Chicago Midway International EUG → MDW
1,552 nautical miles (1,786 statute miles) east on a straight line, true course 083°, about 068° magnetic at the departure end (variation 15E). At 120 knots that is 9 h 18 min at the quickest height in today's winds (39,000 ft, a 47-knot tailwind), arriving about 6:53 am CDT (11:53 UTC), after sunset at the destination. 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: 2 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
- SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 667 to 806 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 8W VALID UNTIL 0355Z CO MT WY FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR AREA TS MOV FROM 22040KT. TOPS TO FL350.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 149 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 90 to 219 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 109 to 697 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 299 to 906 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 328 to 687 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 348 to 995 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 517 to 756 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). Near the route, 736 nm along the route.
- 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 1224 to 1353 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 EUG.
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 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 11 forecast points nearest it (RDM, BOI, DLN, BIL, MLS, RAP, PIR, FSD, MCW, DBQ, JOT). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 220° at 10 kt | −4 kt | 6 °C | 124 kt | 12 h 31 min | 10:06 am CDT (15:06 UTC) |
| 7,500 ft | 220° at 8 kt | −3 kt | 6 °C | 123 kt | 12 h 37 min | 10:12 am CDT (15:12 UTC) |
| 9,500 ft | 220° at 10 kt | −4 kt | 3 °C | 124 kt | 12 h 31 min | 10:06 am CDT (15:06 UTC) |
| 11,500 ft | 230° at 16 kt | −10 kt | 1 °C | 130 kt | 11 h 56 min | 9:31 am CDT (14:31 UTC) |
| 13,500 ft | 230° at 18 kt | −13 kt | -3 °C | 133 kt | 11 h 40 min | 9:15 am CDT (14:15 UTC) |
| 15,500 ft | 240° at 19 kt | −14 kt | -7 °C | 134 kt | 11 h 35 min | 9:10 am CDT (14:10 UTC) |
| 17,500 ft | 240° at 21 kt | −16 kt | -11 °C | 136 kt | 11 h 25 min | 9:00 am CDT (14:00 UTC) |
| 18,000 ft FL180 | 240° at 21 kt | −16 kt | -12 °C | 136 kt | 11 h 25 min | 9:00 am CDT (14:00 UTC) |
| 24,000 ft FL240 | 250° at 27 kt | −23 kt | -23 °C | 143 kt | 10 h 51 min | 8:26 am CDT (13:26 UTC) |
| 30,000 ft FL300 | 240° at 32 kt | −25 kt | -35 °C | 145 kt | 10 h 42 min | 8:17 am CDT (13:17 UTC) |
| 34,000 ft FL340 | 250° at 45 kt | −39 kt | -39 °C | 159 kt | 9 h 46 min | 7:21 am CDT (12:21 UTC) |
| 39,000 ft FL390 | 250° at 51 kt | −47 kt | -45 °C | 167 kt | 9 h 18 min | 6:53 am CDT (11:53 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RDM | used from 0 nm out; 64 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° | |
| BOI | used from 199 nm out; 95 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° | |
| DLN | used from 348 nm out; 93 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° | ||
| BIL | used from 547 nm out; 94 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° | |
| MLS | used from 697 nm out; 122 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° | |
| RAP | used from 746 nm out; 96 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° | |
| PIR | used from 945 nm out; 30 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° | |
| FSD | used from 1045 nm out; 72 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° |
| MCW | used from 1194 nm out; 75 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° |
| DBQ | used from 1343 nm out; 47 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° |
| JOT | used from 1493 nm out; 30 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° |
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 |
|---|---|---|---|---|---|---|---|
| EUG Eugene, OR | departure | no report just now | 373 ft | ||||
| RDM Redmond, OR | 90 nm out, 3 nm south of the line, tower | no report just now | 3,081 ft | ||||
| GCD John Day, OR | 179 nm out, 5 nm east of the line | no report just now | 3,702 ft | ||||
| LLJ Challis, ID | 388 nm out, 4 nm south of the line | no report just now | 5,075 ft | ||||
| COD Cody, WY | 607 nm out, 2 nm southeast of the line | no report just now | 5,102 ft | ||||
| GCC Gillette, WY | 756 nm out, 3 nm southeast of the line | no report just now | 4,365 ft | ||||
| RAP Rapid City, SD | 866 nm out, 9 nm south of the line, tower | no report just now | 3,203 ft | ||||
| MHE Mitchell, SD | 1085 nm out, 8 nm north of the line | no report just now | 1,304 ft | ||||
| FSD Sioux Falls, SD | 1144 nm out, 7 nm north of the line, tower | no report just now | 1,430 ft | ||||
| ALO Waterloo, IA | 1343 nm out, 12 nm southwest of the line, tower | no report just now | 873 ft | ||||
| DPA Chicago/West Chicago, IL | 1532 nm out, 3 nm northwest of the line, tower | no report just now | 758 ft | ||||
| MDW Chicago, IL | destination | no report just now | 619 ft |
The highest airport on this list sits at 5,102 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MDW when you get there the forecast at the estimated arrival, 6:53 am CDT (11:53 UTC)
MDW has no terminal forecast; use the nearest airport that does.
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 EUG 6:34 pm PDT (01:34 UTC), at MDW 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:42 pm CDT (23:42 UTC)). At 120 knots the arrival at MDW is before sunrise there (6:59 am CDT (11:59 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: Mahlon Sweet Field, Chicago Midway International.