Plan a flight · Sun 8:40 pm CDT (01:40 UTC)

Joe Foss Field to Mahlon Sweet Field FSD → EUG

1,142 nautical miles (1,314 statute miles) west on a straight line, true course 281°, about 276° magnetic at the departure end (variation 5E). At 120 knots that is 9 h at the quickest height in today's winds (4,500 ft, a 7-knot tailwind), arriving about 3:40 am PDT (10:40 UTC), after sunset at the destination. Right now FSD is VFR, wind from the west-northwest (290°) at 5 knots; EUG is VFR, wind from the north-northwest (340°) at 10 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

SIGMET 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 9:55 pm CDT (02:55 UTC). Over the route from 377 to 506 nm out.
as issued
```
WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 3W
VALID UNTIL 0255Z
MT WY
FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL310.
```
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 139 to 794 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 238 to 844 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 387 to 625 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, 407 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 447 to 1032 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 457 to 814 nm out.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 923 to 1052 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 FSD.

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, 6:57 pm CDT (23:57 UTC): moderate chop turbulence from 31,000 ft to 33,000 ft. 655 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
BE20 at 14,000 ft, 36 nm north, 7:20 pm CDT (00:20 UTC): light turbulence. At the departure 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
B763 at 32,000 ft, 19 nm south, 8:29 pm CDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 189 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
A21N at 35,000 ft, 7 nm southeast, 5:47 pm CDT (22:47 UTC): no turbulence, remarks: ZDVWC-32. 387 nm along the route, 7 nm southeast of the line.
as filed, and in English
```
GCC UA /OV GCC/TM 2247/FL350/TP A21N/TB NEG /RM ZDVWC-32
```
Report
a routine report filed through GCC
Where
over GCC
Time
22:47 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
none
Remarks
ZDVWC-32
E75L at 11,000 ft, 9 nm south, 7:36 pm CDT (00:36 UTC): trace to light rime icing from 10,500 ft to 11,500 ft, -8 °C, remarks: durc-zse. 1042 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
B738 at 11,000 ft, 3 nm south, 8:19 pm CDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. 1052 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, 8:16 pm CDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. 1052 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, 7:28 pm CDT (00:28 UTC): a broken layer above 6,500 ft. 1052 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 9,500 ft, 3 nm south, 6:07 pm CDT (23:07 UTC): light rime icing from 7,000 ft to 9,500 ft, a broken layer above 7,300 ft, -2 °C, remarks: during the descent runway 5. 1052 nm along the route, 3 nm south of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 2307/FL095/TP E75L/SK BKN073-TOPSUNKN/TA M2/IC LGT RIME 095-070/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
23:07 UTC
Height
at 9,500 ft
Aircraft
E75L
Sky
a broken layer from 7,300 ft, tops unknown
Temperature
−2 °C
Icing
light rime from 9,500 ft to 7,000 ft
Remarks
during the descent runway 5
E75L at 9,000 ft, 15 nm south, 6:05 pm CDT (23:05 UTC): light rime icing, -6 °C, remarks: zse. 1062 nm along the route, 15 nm south of the line.
as filed, and in English
```
RDM UA /OV DSD155012/TM 2305/FL090/TP E75L/TA M06/IC LGT RIME/RM ZSE
```
Report
a routine report filed through RDM
Where
12 nm southeast (155°) of DSD
Time
23:05 UTC
Height
at 9,000 ft
Aircraft
E75L
Temperature
−6 °C
Icing
light rime
Remarks
zse

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 8 forecast points nearest it (FSD, PIR, RAP, MLS, BIL, DLN, BOI, RDM). 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	070° at 6 kt	−7 kt	7 °C	127 kt	9 h	3:40 am PDT (10:40 UTC)
6,500 ft	080° at 5 kt	−6 kt	7 °C	126 kt	9 h 04 min	3:44 am PDT (10:44 UTC)
8,500 ft	140° at 4 kt	−4 kt	3 °C	124 kt	9 h 13 min	3:53 am PDT (10:53 UTC)
10,500 ft	200° at 8 kt	+1 kt	0 °C	119 kt	9 h 36 min	4:16 am PDT (11:16 UTC)
12,500 ft	210° at 13 kt	+5 kt	-3 °C	115 kt	9 h 56 min	4:36 am PDT (11:36 UTC)
14,500 ft	220° at 15 kt	+7 kt	-7 °C	113 kt	10 h 06 min	4:46 am PDT (11:46 UTC)
16,500 ft	220° at 17 kt	+10 kt	-11 °C	110 kt	10 h 23 min	5:03 am PDT (12:03 UTC)
18,000 ft FL180	230° at 18 kt	+11 kt	-14 °C	109 kt	10 h 29 min	5:09 am PDT (12:09 UTC)
24,000 ft FL240	230° at 28 kt	+19 kt	-23 °C	101 kt	11 h 18 min	5:58 am PDT (12:58 UTC)
30,000 ft FL300	220° at 39 kt	+24 kt	-35 °C	96 kt	11 h 54 min	6:34 am PDT (13:34 UTC)
34,000 ft FL340	230° at 52 kt	+38 kt	-40 °C	82 kt	13 h 56 min	8:36 am PDT (15:36 UTC)
39,000 ft FL390	240° at 55 kt	+46 kt	-46 °C	74 kt	15 h 26 min	10:06 am PDT (17:06 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
FSD	used from 0 nm out; 25 nm from the line	200/16	220/20 17°	240/26 13°	230/19 6°	240/25 -9°	240/28 -20°	250/39 -33°	250/44 -43°	260/63 -52°
PIR	used from 99 nm out; 41 nm from the line		L/V 17°	230/13 12°	220/22 6°	250/31 -9°	250/34 -21°	240/50 -35°	230/61 -43°	240/62 -51°
RAP	used from 199 nm out; 53 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°
MLS	used from 397 nm out; 118 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
BIL	used from 447 nm out; 85 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
DLN	used from 596 nm out; 73 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 794 nm out; 66 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 943 nm out; 85 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°

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
FSD Sioux Falls, SD	departure	VFR Sky: scattered clouds at 18,000 feet, scattered clouds at 25,000 feet	from the west-northwest (290°) at 5 knots	10+ mi	none	1,430 ft	7:56 pm CDT (00:56 UTC)
MHE Mitchell, SD	60 nm out, 2 nm east of the line	VFR	from the north-northwest (340°) at 9 knots	10+ mi	none	1,304 ft	00:53 UTC
PHP Philip, SD	208 nm out, 7 nm southwest of the line	IFR Sky: overcast at 900 feet Weather: light rain	from the east-southeast (110°) at 3 knots	7 mi	900 ft	2,209 ft	01:28 UTC
RAP Rapid City, SD	278 nm out, 14 nm south of the line, tower	IFR Sky: a broken layer at 900 feet, overcast at 2,000 feet	from the northeast (050°) at 8 knots	10+ mi	900 ft	3,203 ft	00:52 UTC
GCC Gillette, WY	387 nm out, 7 nm southeast of the line	IFR Sky: a broken layer at 900 feet, a broken layer at 1,500 feet, overcast at 9,500 feet	from the north (350°) at 7 knots	10+ mi	900 ft	4,365 ft	01:02 UTC
GEY Greybull, WY	496 nm out, 5 nm southeast of the line	marginal VFR Sky: overcast at 1,300 feet	from the northwest (310°) at 13 knots	9 mi	1,300 ft	3,941 ft	00:53 UTC
WYS West Yellowstone, MT	625 nm out, 4 nm northeast of the line	IFR Sky: a broken layer at 500 feet, overcast at 1,100 feet Weather: light rain, mist	from the north (010°) at 4 knots	6 mi	500 ft	6,649 ft	01:15 UTC
LLJ Challis, ID	754 nm out, 7 nm south of the line	marginal VFR Sky: overcast at 2,600 feet Weather: light rain	from the north-northwest (340°) at 11 knots	10+ mi	2,600 ft	5,075 ft	00:55 UTC
MYL Mc Call, ID	834 nm out, 18 nm north of the line	VFR Sky: a broken layer at 3,400 feet, overcast at 6,000 feet	from the west-northwest (300°) at 7 knots	10+ mi	3,400 ft	5,024 ft	00:51 UTC
GCD John Day, OR	963 nm out, 5 nm southeast of the line	marginal VFR Sky: overcast at 2,800 feet	from the north-northwest (330°) at 7 knots, gusting to 15	10+ mi	2,800 ft	3,702 ft	01:15 UTC
RDM Redmond, OR	1052 nm out, 3 nm south of the line, tower	VFR Sky: overcast at 6,500 feet	from the north (350°) at 8 knots	10+ mi	6,500 ft	3,081 ft	00:56 UTC
EUG Eugene, OR	destination	VFR Sky: scattered clouds at 4,500 feet, scattered clouds at 7,500 feet	from the north-northwest (340°) at 10 knots	10+ mi	none	373 ft	5:54 pm PDT (00:54 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 EUG when you get there the forecast at the estimated arrival, 3:40 am PDT (10:40 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for EUG

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

The forecast for FSD, the departure

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

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 FSD 6:49 pm CDT (23:49 UTC), at EUG 6:34 pm PDT (01:34 UTC) (civil twilight ends 7:03 pm PDT (02:03 UTC)). At 120 knots the arrival at EUG is before sunrise there (7:23 am PDT (14:23 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 northern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · 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: Joe Foss Field, Mahlon Sweet Field.