Plan a flight · Sun 7:40 pm PDT (02:40 UTC)

Mahlon Sweet Field to Joe Foss Field EUG → FSD

1,142 nautical miles (1,314 statute miles) east on a straight line, true course 082°, about 067° magnetic at the departure end (variation 15E). At 120 knots that is 6 h 58 min at the quickest height in today's winds (39,000 ft, a 44-knot tailwind), arriving about 4:38 am CDT (09:38 UTC), after sunset at the destination. Right now EUG is VFR, wind from the north-northwest (340°) at 6 knots; FSD 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: 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

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 665 to 804 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 89 to 218 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 109 to 695 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 298 to 903 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 328 to 685 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 347 to 1003 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 516 to 754 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, 735 nm along 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 EUG.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

B738 at 33,000 ft, 8 nm south, 4:57 pm PDT (23:57 UTC): moderate chop turbulence from 31,000 ft to 33,000 ft. 486 nm along the route, 8 nm south of the line.
as filed, and in English
```
IDA UA /OV DBS015030/TM 2357/FL330/TP B738/TB MOD CHOP 310-330 /ZLC
```
Report
a routine report filed through IDA
Where
30 nm north (015°) of DBS
Time
23:57 UTC
Height
at 33,000 ft
Aircraft
B738
Turbulence
moderate chop from 31,000 ft to 33,000 ft zlc
S22T at 15,000 ft, 30 nm south, 6:47 pm PDT (01:47 UTC): moderate rime icing above 15,000 ft, -5 °C. 566 nm along the route, 30 nm south of the line.
as filed, and in English
```
JAC UA /OV DNW010020/TM 0147/FL150/TP S22T/TA M05/IC MOD RIME 150 /ZLC
```
Report
a routine report filed through JAC
Where
20 nm north (010°) of DNW
Time
01:47 UTC
Height
at 15,000 ft
Aircraft
S22T
Temperature
−5 °C
Icing
moderate rime at 15,000 ft zlc
B738 at 11,000 ft, 3 nm south, 6:19 pm PDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. 89 nm along the route, 3 nm south of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0119/FL110/TP B738/TA UNKN/IC LGT RIME/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:19 UTC
Height
at 11,000 ft
Aircraft
B738
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 5
E75L at 11,000 ft, 3 nm south, 6:16 pm PDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. 89 nm along the route, 3 nm south of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0116/FL110/TP E75L/TA UNKN/IC LGT RIME/RM DURD RWY 29
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:16 UTC
Height
at 11,000 ft
Aircraft
E75L
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 29
E175 at 6,500 ft, 3 nm south, 5:28 pm PDT (00:28 UTC): a broken layer above 6,500 ft. 89 nm along the route, 3 nm south of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0028/FL065/TP E175/SK BKN065-TOPSUNKN
```
Report
a routine report filed through RDM
Where
over RDM
Time
00:28 UTC
Height
at 6,500 ft
Aircraft
E175
Sky
a broken layer from 6,500 ft, tops unknown
E75L at 11,000 ft, 9 nm south, 5:36 pm PDT (00:36 UTC): trace to light rime icing from 10,500 ft to 11,500 ft, -8 °C, remarks: durc-zse. 99 nm along the route, 9 nm south of the line.
as filed, and in English
```
RDM UA /OV DSD090015/TM 0036/FL110/TP E75L/TA M08/IC TRACE-LGT RIME 105-115/RM DURC-ZSE
```
Report
a routine report filed through RDM
Where
15 nm east (090°) of DSD
Time
00:36 UTC
Height
at 11,000 ft
Aircraft
E75L
Temperature
−8 °C
Icing
trace-lgt rime from 10,500 ft to 11,500 ft
Remarks
durc-zse
BE20 at 15,000 ft, 11 nm southwest, 6:56 pm PDT (01:56 UTC): -5 °C, remarks: clear out at at 22,000 ft ZDVWC-31. 814 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
CUT UA /OV ECS340020/TM 0156/FL150/TP BE20/TA M05/IC T RIME 150-180/RM CLR OUT AT 220 ZDVWC-31
```
Report
a routine report filed through CUT
Where
20 nm north (340°) of ECS
Time
01:56 UTC
Height
at 15,000 ft
Aircraft
BE20
Temperature
−5 °C
Icing
T rime from 15,000 ft to 18,000 ft
Remarks
clear out at at 22,000 ft ZDVWC-31
B763 at 32,000 ft, 19 nm south, 6:29 pm PDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 953 nm along the route, 19 nm south of the line.
as filed, and in English
```
RAP UA /OV RAP084081/TM 0129/FL320/TP B763/TB OCNL LGT-MOD CAT/RM ZDVWC
```
Report
a routine report filed through RAP
Where
81 nm east (084°) of RAP
Time
01:29 UTC
Height
at 32,000 ft
Aircraft
B763
Turbulence
occasional light to moderate clear-air turbulence
Remarks
zdvwc
BE20 at 14,000 ft, 36 nm north, 5:20 pm PDT (00:20 UTC): light turbulence. At the destination end, 36 nm north of the line.
as filed, and in English
```
FSD UA /OV FSD340035/TM 0020/FL140/TP BE20/TB CONS LGT/ NEG 120
```
Report
a routine report filed through FSD
Where
35 nm north (340°) of FSD
Time
00:20 UTC
Height
at 14,000 ft
Aircraft
BE20
Turbulence
continuous light no at 12,000 ft

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 8 forecast points nearest it (RDM, BOI, DLN, BIL, MLS, RAP, PIR, FSD). 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	160° at 7 kt	+4 kt	6 °C	116 kt	9 h 51 min	7:31 am CDT (12:31 UTC)
7,500 ft	170° at 6 kt	+2 kt	4 °C	118 kt	9 h 41 min	7:21 am CDT (12:21 UTC)
9,500 ft	200° at 9 kt	−2 kt	1 °C	122 kt	9 h 22 min	7:02 am CDT (12:02 UTC)
11,500 ft	220° at 17 kt	−9 kt	-1 °C	129 kt	8 h 51 min	6:31 am CDT (11:31 UTC)
13,500 ft	230° at 19 kt	−12 kt	-5 °C	132 kt	8 h 39 min	6:19 am CDT (11:19 UTC)
15,500 ft	230° at 20 kt	−14 kt	-9 °C	134 kt	8 h 31 min	6:11 am CDT (11:11 UTC)
17,500 ft	230° at 21 kt	−15 kt	-13 °C	135 kt	8 h 28 min	6:08 am CDT (11:08 UTC)
18,000 ft FL180	230° at 21 kt	−15 kt	-14 °C	135 kt	8 h 28 min	6:08 am CDT (11:08 UTC)
24,000 ft FL240	240° at 27 kt	−22 kt	-24 °C	142 kt	8 h 03 min	5:43 am CDT (10:43 UTC)
30,000 ft FL300	240° at 31 kt	−24 kt	-35 °C	144 kt	7 h 56 min	5:36 am CDT (10:36 UTC)
34,000 ft FL340	240° at 45 kt	−37 kt	-38 °C	157 kt	7 h 16 min	4:56 am CDT (09:56 UTC)
39,000 ft FL390	240° at 51 kt	−44 kt	-43 °C	164 kt	6 h 58 min	4:38 am CDT (09:38 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; 97 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 347 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 546 nm out; 92 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 695 nm out; 118 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 744 nm out; 99 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 943 nm out; 26 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 1042 nm out; 74 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°

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	VFR Sky: a few clouds at 6,000 feet, scattered clouds at 7,500 feet, a broken layer at 9,000 feet	from the north-northwest (340°) at 6 knots	10+ mi	9,000 ft	373 ft	6:54 pm PDT (01:54 UTC)
RDM Redmond, OR	89 nm out, 3 nm south of the line, tower	VFR Sky: a broken layer at 5,500 feet, overcast at 7,000 feet	from the northwest (320°) at 4 knots	10+ mi	5,500 ft	3,081 ft	01:56 UTC
GCD John Day, OR	179 nm out, 5 nm southeast of the line	marginal VFR Sky: overcast at 3,000 feet	from the northwest (310°) at 9 knots	10+ mi	3,000 ft	3,702 ft	02:15 UTC
MYL Mc Call, ID	308 nm out, 18 nm north of the line	VFR Sky: a broken layer at 3,300 feet, a broken layer at 4,000 feet, overcast at 6,000 feet	from the west-northwest (290°) at 7 knots	10+ mi	3,300 ft	5,024 ft	01:51 UTC
LLJ Challis, ID	387 nm out, 7 nm south of the line	marginal VFR Sky: scattered clouds at 1,900 feet, overcast at 2,800 feet Weather: light rain	from the north-northwest (340°) at 9 knots	10+ mi	2,800 ft	5,075 ft	01:55 UTC
WYS West Yellowstone, MT	516 nm out, 4 nm northeast of the line	low IFR Sky: overcast at 300 feet Weather: light snow, mist	from the north-northwest (330°) at 3 knots	1.25 mi	300 ft	6,649 ft	02:35 UTC
GEY Greybull, WY	645 nm out, 5 nm southeast of the line	marginal VFR Sky: overcast at 1,100 feet	from the northwest (320°) at 9 knots	10+ mi	1,100 ft	3,941 ft	02:31 UTC
GCC Gillette, WY	754 nm out, 7 nm southeast of the line	IFR Sky: a broken layer at 600 feet, a broken layer at 4,700 feet, overcast at 8,000 feet	from the north (010°) at 7 knots	9 mi	600 ft	4,365 ft	02:04 UTC
RAP Rapid City, SD	864 nm out, 14 nm south of the line, tower	low IFR Sky: overcast at 300 feet Weather: mist	from the east (090°) at 7 knots	2.5 mi	300 ft	3,203 ft	01:52 UTC
PHP Philip, SD	933 nm out, 7 nm southwest of the line	marginal VFR Sky: overcast at 1,400 feet Weather: mist	from the east-northeast (070°) at 7 knots	6 mi	1,400 ft	2,209 ft	02:34 UTC
MHE Mitchell, SD	1082 nm out, 2 nm east of the line	VFR	from the northwest (320°) at 10 knots	10+ mi	none	1,304 ft	01:53 UTC
FSD Sioux Falls, SD	destination	VFR Sky: scattered clouds at 18,000 feet, scattered clouds at 25,000 feet	calm	10+ mi	none	1,430 ft	8:56 pm CDT (01:56 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 FSD when you get there the forecast at the estimated arrival, 4:38 am CDT (09:38 UTC)

Wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for FSD

From Sun 7:00 pm CDT (00:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Sun 9:00 pm CDT (02:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Sun 11:00 pm CDT (04:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 8:00 am CDT (13:00 UTC): wind from the northeast at 6 knots, visibility more than 6 miles, scattered clouds at 700 feet
From Mon 2:00 pm CDT (19:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 4:00 pm CDT (21:00 UTC): wind from the west at 11 knots, gusting to 17, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for EUG, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
From Sun 8:00 pm PDT (03:00 UTC): wind light and variable, 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 EUG 6:34 pm PDT (01:34 UTC), at FSD 6:49 pm CDT (23:49 UTC) (civil twilight ends 7:17 pm CDT (00:17 UTC)). At 120 knots the arrival at FSD is before sunrise there (7:37 am CDT (12:37 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

Radar now, the Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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, Joe Foss Field.