Rosebud Sioux Tribal Airport to Mahlon Sweet Field SUO → EUG
969 nautical miles (1,115 statute miles) west on a straight line, true course 281°, about 275° magnetic at the departure end (variation 6E). At 120 knots that is 7 h 49 min at the quickest height in today's winds (4,500 ft, a 4-knot tailwind), arriving about 7:58 am PDT (14:58 UTC). Right now SUO is low IFR, wind from the northeast (050°) at 6 knots; EUG is VFR, wind from the south-southeast (160°) 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: 1 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 649 nm of 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). Near the route, at the departure end.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 110 to 350 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 120 to 340 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 170 to 370 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 220 to 649 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 250 to 789 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 519 to 689 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 749 to 859 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 200 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 SUO.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E175 at 6,300 ft, 48 nm south, 11:20 pm CDT (04:20 UTC): overcast above 6,300 ft, remarks: during the descent runway 31. 579 nm along the route, 48 nm south of the line.
as filed, and in English
SUN UA /OV KSUN/TM 0420/FL063/TP E175/SK OVC063-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 04:20 UTC
- Height
- at 6,300 ft
- Aircraft
- E175
- Sky
- overcast from 6,300 ft, tops unknown
- Remarks
- during the descent runway 31
- B737 at 10,000 ft, 2 nm northwest, 11:25 pm CDT (04:25 UTC): no icing, remarks: during the descent runway 5. 879 nm along the route, 2 nm northwest of the line.
as filed, and in English
RDM UA /OV RDM/TM 0425/FL100/TP B737/TA UNKN/IC NEG/RM DURD RWY 5
- Report
- a routine report filed through RDM
- Where
- over RDM
- Time
- 04:25 UTC
- Height
- at 10,000 ft
- Aircraft
- B737
- Temperature
- UNKN
- Icing
- none
- Remarks
- during the descent runway 5
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 7 forecast points nearest it (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 | 140° at 5 kt | −4 kt | 6 °C | 124 kt | 7 h 49 min | 7:58 am PDT (14:58 UTC) |
| 6,500 ft | 150° at 4 kt | −4 kt | 5 °C | 124 kt | 7 h 49 min | 7:58 am PDT (14:58 UTC) |
| 8,500 ft | 180° at 6 kt | −2 kt | 1 °C | 122 kt | 7 h 57 min | 8:06 am PDT (15:06 UTC) |
| 10,500 ft | 220° at 10 kt | +4 kt | -1 °C | 116 kt | 8 h 21 min | 8:30 am PDT (15:30 UTC) |
| 12,500 ft | 230° at 15 kt | +10 kt | -4 °C | 110 kt | 8 h 49 min | 8:58 am PDT (15:58 UTC) |
| 14,500 ft | 230° at 16 kt | +11 kt | -8 °C | 109 kt | 8 h 53 min | 9:02 am PDT (16:02 UTC) |
| 16,500 ft | 230° at 17 kt | +12 kt | -12 °C | 108 kt | 8 h 58 min | 9:07 am PDT (16:07 UTC) |
| 18,000 ft FL180 | 240° at 18 kt | +12 kt | -15 °C | 108 kt | 8 h 58 min | 9:07 am PDT (16:07 UTC) |
| 24,000 ft FL240 | 250° at 25 kt | +21 kt | -24 °C | 99 kt | 9 h 47 min | 9:56 am PDT (16:56 UTC) |
| 30,000 ft FL300 | 240° at 28 kt | +22 kt | -34 °C | 98 kt | 9 h 53 min | 10:02 am PDT (17:02 UTC) |
| 34,000 ft FL340 | 230° at 42 kt | +31 kt | -37 °C | 89 kt | 10 h 53 min | 11:02 am PDT (18:02 UTC) |
| 39,000 ft FL390 | 240° at 49 kt | +39 kt | -43 °C | 81 kt | 11 h 58 min | 12:07 pm PDT (19:07 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PIR | used from 0 nm out; 80 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 50 nm out; 41 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° | |
| LND | used from 250 nm out; 98 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| DLN | used from 400 nm out; 107 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 599 nm out; 63 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 749 nm out; 106 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 949 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 |
|---|---|---|---|---|---|---|---|
| SUO Rosebud, SD | departure | low IFR Sky: overcast at 300 feet Weather: mist | from the northeast (050°) at 6 knots | 5 mi | 300 ft | 2,724 ft | 1:55 am CDT (06:55 UTC) |
| CUT Custer, SD | 120 nm out, 8 nm north of the line | VFR Sky: a few clouds at 10,000 feet | calm | 10+ mi | none | 5,619 ft | 06:53 UTC |
| WRL Worland, WY | 310 nm out, 3 nm southwest of the line | low IFR Sky: a broken layer at 300 feet, overcast at 700 feet Weather: mist | from the north (360°) at 10 knots | 6 mi | 300 ft | 4,251 ft | 06:53 UTC |
| RXE Rexburg, ID | 479 nm out, 24 nm south of the line | marginal VFR Sky: a few clouds at 1,100 feet, a broken layer at 2,200 feet, overcast at 2,800 feet | calm | 10+ mi | 2,200 ft | 4,862 ft | 06:53 UTC |
| LLJ Challis, ID | 579 nm out, 13 nm north of the line | marginal VFR Sky: overcast at 2,600 feet Weather: light rain | from the north-northwest (330°) at 6 knots | 10+ mi | 2,600 ft | 5,075 ft | 06:55 UTC |
| ONO Ontario, OR | 699 nm out, 19 nm south of the line | VFR Sky: a few clouds at 12,000 feet | from the west-northwest (300°) at 7 knots, gusting to 16 | 10+ mi | none | 2,193 ft | 06:53 UTC |
| GCD John Day, OR | 789 nm out, 7 nm northeast of the line | VFR Sky: scattered clouds at 3,200 feet, overcast at 6,500 feet | calm | 10+ mi | 6,500 ft | 3,702 ft | 06:55 UTC |
| RDM Redmond, OR | 879 nm out, 2 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 3,081 ft | 06:56 UTC |
| EUG Eugene, OR | destination | VFR | from the south-southeast (160°) at 3 knots | 10+ mi | none | 373 ft | 11:54 pm PDT (06:54 UTC) |
The highest airport on this list sits at 5,619 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, 7:58 am PDT (14:58 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
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 SUO 7:04 pm CDT (00:04 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: Rosebud Sioux Tribal Airport, Mahlon Sweet Field.