Purdue University Airport to Mahlon Sweet Field LAF → EUG
1,614 nautical miles (1,857 statute miles) west on a straight line, true course 290°, about 291° magnetic at the departure end (variation 1W). At 120 knots that is 14 h 40 min at the quickest height in today's winds (8,500 ft, a 10-knot headwind), arriving about 4:43 pm PDT (23:43 UTC). Right now LAF is VFR, wind calm; EUG is VFR, wind from the southeast (130°) at 3 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: 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
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Near the route, at the departure end.
- 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). Over the route from 179 to 598 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 538 to 1285 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 767 to 897 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 857 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 906 to 1265 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 916 to 1464 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 388 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 1275 to 1325 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 LAF.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 35,000 ft, 14 nm north, 3:05 am EDT (07:05 UTC): no turbulence. At the departure end, 14 nm north of the line.
as filed, and in English
TIP UA /OV RBS010023/TM 0705/FL350/TP B739/TB NEG
- Report
- a routine report filed through TIP
- Where
- 23 nm north (010°) of RBS
- Time
- 07:05 UTC
- Height
- at 35,000 ft
- Aircraft
- B739
- Turbulence
- none
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 13 forecast points nearest it (JOT, BRL, DSM, OMA, FSD, ONL, PIR, RAP, LND, 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 | 260° at 19 kt | +16 kt | 9 °C | 104 kt | 15 h 31 min | 5:34 pm PDT (00:34 UTC) |
| 6,500 ft | 260° at 16 kt | +14 kt | 11 °C | 106 kt | 15 h 14 min | 5:17 pm PDT (00:17 UTC) |
| 8,500 ft | 250° at 12 kt | +10 kt | 5 °C | 110 kt | 14 h 40 min | 4:43 pm PDT (23:43 UTC) |
| 10,500 ft | 250° at 15 kt | +12 kt | 2 °C | 108 kt | 14 h 57 min | 5:00 pm PDT (00:00 UTC) |
| 12,500 ft | 250° at 18 kt | +14 kt | -1 °C | 106 kt | 15 h 14 min | 5:17 pm PDT (00:17 UTC) |
| 14,500 ft | 250° at 18 kt | +14 kt | -5 °C | 106 kt | 15 h 14 min | 5:17 pm PDT (00:17 UTC) |
| 16,500 ft | 250° at 19 kt | +15 kt | -9 °C | 105 kt | 15 h 22 min | 5:25 pm PDT (00:25 UTC) |
| 18,000 ft FL180 | 250° at 19 kt | +15 kt | -12 °C | 105 kt | 15 h 22 min | 5:25 pm PDT (00:25 UTC) |
| 24,000 ft FL240 | 240° at 27 kt | +20 kt | -24 °C | 100 kt | 16 h 08 min | 6:11 pm PDT (01:11 UTC) |
| 30,000 ft FL300 | 250° at 34 kt | +29 kt | -34 °C | 91 kt | 17 h 44 min | 7:47 pm PDT (02:47 UTC) |
| 34,000 ft FL340 | 250° at 41 kt | +36 kt | -38 °C | 84 kt | 19 h 13 min | 9:16 pm PDT (04:16 UTC) |
| 39,000 ft FL390 | 250° at 42 kt | +38 kt | -45 °C | 82 kt | 19 h 41 min | 9:44 pm PDT (04:44 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JOT | used from 0 nm out; 67 nm from the line | 250/25 | 260/22 14° | 250/17 9° | 270/21 5° | 280/28 -8° | 280/36 -20° | 270/41 -35° | 280/57 -42° | 290/65 -50° |
| BRL | used from 149 nm out; 42 nm from the line | 250/32 | 250/19 17° | 260/15 11° | 270/16 3° | 290/23 -7° | 260/42 -20° | 270/52 -34° | 280/63 -39° | 290/64 -48° |
| DSM | used from 249 nm out; 47 nm from the line | 250/47 | 260/25 20° | 240/19 11° | 240/31 5° | 250/26 -9° | 260/38 -20° | 260/47 -34° | 270/58 -37° | 270/61 -47° |
| OMA | used from 398 nm out; 71 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
| FSD | used from 448 nm out; 56 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| ONL | used from 498 nm out; 34 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| PIR | used from 598 nm out; 71 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| RAP | used from 697 nm out; 38 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| LND | used from 897 nm out; 98 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| DLN | used from 1046 nm out; 105 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -44° | ||
| BOI | used from 1245 nm out; 63 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° | |
| RDM | used from 1395 nm out; 105 nm from the line | 360/14 -2° | 020/25 -8° | 360/34 -13° | 360/75 -16° | 360/88 -25° | 360/80 -39° | 350/47 -42° | 360/11 -43° | |
| OTH | used from 1594 nm out; 70 nm from the line | 020/7 | 020/13 1° | 010/26 -4° | 360/41 -4° | 350/60 -13° | 350/65 -24° | 350/72 -40° | 350/68 -48° | 340/43 -47° |
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 |
|---|---|---|---|---|---|---|---|
| LAF Lafayette, IN | departure | VFR | calm | 10+ mi | none | 605 ft | 4:54 am EDT (08:54 UTC) |
| PNT Pontiac, IL | 80 nm out, 4 nm northwest of the line | VFR | from the south (170°) at 3 knots | 10+ mi | none | 666 ft | 08:55 UTC |
| MLI Moline, IL | 169 nm out, 8 nm north of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 589 ft | 08:52 UTC |
| SUX Sioux City, IA | 438 nm out, 10 nm southwest of the line, tower | VFR | calm | 10+ mi | none | 1,098 ft | 08:52 UTC |
| YKN Yankton, SD | 488 nm out, 11 nm north of the line | VFR | from the west (280°) at 4 knots | 10+ mi | none | 1,305 ft | 08:56 UTC |
| SUO Rosebud, SD | 647 nm out, 3 nm southeast of the line | low IFR Sky: overcast at 200 feet Weather: mist | from the north-northeast (030°) at 7 knots | 1.25 mi | 200 ft | 2,724 ft | 08:55 UTC |
| WRL Worland, WY | 956 nm out, 4 nm south of the line | marginal VFR Sky: overcast at 1,000 feet | from the north-northwest (340°) at 8 knots | 10+ mi | 1,000 ft | 4,251 ft | 08:53 UTC |
| HSG Thermopolis, WY | 976 nm out, 21 nm south of the line | marginal VFR Sky: overcast at 2,200 feet | from the north-northeast (020°) at 10 knots | 10+ mi | 2,200 ft | 4,891 ft | 08:55 UTC |
| LLJ Challis, ID | 1225 nm out, 13 nm north of the line | marginal VFR Sky: a broken layer at 2,300 feet, overcast at 3,400 feet | from the north-northwest (330°) at 7 knots | 10+ mi | 2,300 ft | 5,075 ft | 08:55 UTC |
| GCD John Day, OR | 1434 nm out, 7 nm northeast of the line | VFR Sky: scattered clouds at 3,200 feet, a broken layer at 4,300 feet, overcast at 5,500 feet | from the west (260°) at 4 knots | 10+ mi | 4,300 ft | 3,702 ft | 08:55 UTC |
| RDM Redmond, OR | 1524 nm out, 2 nm northwest of the line, tower | VFR | from the south (170°) at 5 knots | 10+ mi | none | 3,081 ft | 08:56 UTC |
| EUG Eugene, OR | destination | VFR | from the southeast (130°) at 3 knots | 10+ mi | none | 373 ft | 1:54 am PDT (08:54 UTC) |
The highest airport on this list sits at 5,075 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, 4:43 pm PDT (23:43 UTC)
Wind from the north at 5 knots, 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 LAF, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility 3 miles, mist, shallow fog, a few clouds at 25,000 feet
- At times between Mon 2:00 am EDT (06:00 UTC) and 6:00 am EDT (10:00 UTC): visibility 1 mile, mist, shallow fog, overcast at 200 feet
- From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility 6 miles, mist, shallow fog, a few clouds at 200 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the southwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 20,000 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 LAF 7:12 pm EDT (23:12 UTC), at EUG 6:32 pm PDT (01:32 UTC) (civil twilight ends 7:01 pm PDT (02:01 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: Purdue University Airport, Mahlon Sweet Field.