University Of Illinois/Willard Airport to Mahlon Sweet Field CMI → EUG
1,564 nautical miles (1,800 statute miles) west on a straight line, true course 291°, about 294° magnetic at the departure end (variation 3W). At 120 knots that is 13 h 15 min at the quickest height in today's winds (4,500 ft, a 2-knot headwind), arriving about 8:11 am PDT (15:11 UTC). 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: 5 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 229 to 398 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 657 to 1265 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 767 to 1056 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 817 to 996 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 847 to 1215 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 847 to 1454 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 867 to 1255 nm out.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1355 to 1484 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 149 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 CMI.
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 12 forecast points nearest it (SPI, BRL, DSM, OMA, ONL, RAP, LND, PIH, 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 | 220° at 7 kt | +2 kt | 8 °C | 118 kt | 13 h 15 min | 8:11 am PDT (15:11 UTC) |
| 6,500 ft | 240° at 8 kt | +5 kt | 10 °C | 115 kt | 13 h 36 min | 8:32 am PDT (15:32 UTC) |
| 8,500 ft | 220° at 11 kt | +5 kt | 7 °C | 115 kt | 13 h 36 min | 8:32 am PDT (15:32 UTC) |
| 10,500 ft | 230° at 13 kt | +7 kt | 3 °C | 113 kt | 13 h 50 min | 8:46 am PDT (15:46 UTC) |
| 12,500 ft | 230° at 15 kt | +9 kt | 0 °C | 111 kt | 14 h 05 min | 9:01 am PDT (16:01 UTC) |
| 14,500 ft | 230° at 17 kt | +11 kt | -5 °C | 109 kt | 14 h 21 min | 9:17 am PDT (16:17 UTC) |
| 16,500 ft | 230° at 19 kt | +12 kt | -9 °C | 108 kt | 14 h 29 min | 9:25 am PDT (16:25 UTC) |
| 18,000 ft FL180 | 230° at 21 kt | +14 kt | -12 °C | 106 kt | 14 h 45 min | 9:41 am PDT (16:41 UTC) |
| 24,000 ft FL240 | 240° at 21 kt | +15 kt | -22 °C | 105 kt | 14 h 54 min | 9:50 am PDT (16:50 UTC) |
| 30,000 ft FL300 | 240° at 28 kt | +21 kt | -34 °C | 99 kt | 15 h 48 min | 10:44 am PDT (17:44 UTC) |
| 34,000 ft FL340 | 250° at 41 kt | +36 kt | -39 °C | 84 kt | 18 h 37 min | 1:33 pm PDT (20:33 UTC) |
| 39,000 ft FL390 | 260° at 47 kt | +44 kt | -47 °C | 76 kt | 20 h 35 min | 3:31 pm PDT (22:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SPI | used from 0 nm out; 46 nm from the line | 210/13 | 260/11 17° | 270/18 10° | 290/21 4° | 310/20 -8° | 330/25 -19° | 320/49 -34° | 320/60 -44° | 320/59 -50° |
| BRL | used from 100 nm out; 13 nm from the line | 200/20 | 250/21 16° | 240/22 10° | 260/20 5° | 270/16 -7° | 290/22 -18° | 320/41 -34° | 320/56 -43° | 310/68 -53° |
| DSM | used from 199 nm out; 37 nm from the line | 200/32 | 240/27 17° | 260/19 10° | 260/16 5° | 260/19 -7° | 240/22 -19° | 270/20 -32° | 270/38 -42° | 290/58 -53° |
| OMA | used from 299 nm out; 46 nm from the line | 190/34 | 230/34 19° | 250/25 12° | 250/18 6° | 250/22 -7° | 250/28 -19° | 260/34 -32° | 260/39 -41° | 280/56 -51° |
| ONL | used from 398 nm out; 68 nm from the line | 200/20 17° | 230/26 14° | 240/21 7° | 250/27 -9° | 260/32 -19° | 240/44 -34° | 240/56 -41° | 250/62 -51° | |
| RAP | used from 598 nm out; 92 nm from the line | 120/15 12° | 180/22 11° | 220/26 5° | 230/35 -9° | 240/40 -22° | 240/50 -37° | 240/51 -41° | 240/47 -47° | |
| LND | used from 797 nm out; 124 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| PIH | used from 996 nm out; 106 nm from the line | 270/10 | 270/13 1° | 210/16 -2° | 200/56 -11° | 200/51 -23° | 200/68 -33° | 220/77 -37° | 230/73 -44° | |
| DLN | used from 1146 nm out; 94 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| BOI | used from 1195 nm out; 56 nm from the line | 330/14 4° | 230/5 -2° | 220/20 -7° | 210/37 -20° | 200/59 -26° | 200/67 -34° | 210/73 -35° | 220/62 -41° | |
| RDM | used from 1345 nm out; 105 nm from the line | 010/15 -2° | 030/21 -8° | 020/26 -12° | 020/46 -22° | 010/72 -27° | 360/47 -34° | 340/31 -35° | 320/20 -40° | |
| OTH | used from 1544 nm out; 70 nm from the line | 020/20 | 040/25 2° | 020/32 -4° | 010/38 -9° | 010/73 -15° | 010/98 -23° | 360/96 -38° | 360/70 -41° | 330/44 -42° |
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 |
|---|---|---|---|---|---|---|---|
| CMI Champaign/Urbana, IL | departure | no report just now | 754 ft | ||||
| PIA Peoria, IL | 70 nm out, 14 nm north of the line, tower | no report just now | 660 ft | ||||
| DSM Des Moines, IA | 259 nm out, 6 nm north of the line, tower | no report just now | 957 ft | ||||
| SUX Sioux City, IA | 388 nm out, 22 nm north of the line, tower | no report just now | 1,098 ft | ||||
| ONL O'Neill, NE | 488 nm out, 4 nm west of the line | no report just now | 2,033 ft | ||||
| IEN Pine Ridge, SD | 667 nm out, 5 nm southeast of the line | no report just now | 3,332 ft | ||||
| HSG Thermopolis, WY | 926 nm out, 4 nm southeast of the line | no report just now | 4,891 ft | ||||
| JAC Jackson, WY | 1026 nm out, 21 nm south of the line, tower | no report just now | 6,451 ft | ||||
| LLJ Challis, ID | 1175 nm out, 23 nm north of the line | no report just now | 5,075 ft | ||||
| ONO Ontario, OR | 1295 nm out, 11 nm south of the line | no report just now | 2,193 ft | ||||
| RDM Redmond, OR | 1474 nm out, 4 nm north of the line, tower | no report just now | 3,081 ft | ||||
| EUG Eugene, OR | destination | no report just now | 373 ft |
The highest airport on this list sits at 6,451 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, 8:11 am PDT (15:11 UTC)
EUG 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 CMI 6:18 pm CDT (23:18 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: University Of Illinois/Willard Airport, Mahlon Sweet Field.