Plan a flight · Mon 7:18 am CDT (12:18 UTC)

Stillwater Regional to Mahlon Sweet Field SWO → EUG

1,284 nautical miles (1,478 statute miles) northwest on a straight line, true course 300°, about 295° magnetic at the departure end (variation 5E). At 120 knots that is 11 h 28 min at the quickest height in today's winds (6,500 ft, a 8-knot headwind), arriving about 4:46 pm PDT (23:46 UTC). Right now SWO is VFR, wind from the south-southeast (160°) at 5 knots; EUG is VFR, wind from the south-southwest (200°) at 5 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: 4 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 W23W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 8:55 am CDT (13:55 UTC). Over the route from 786 to 836 nm out.
as issued
```
WSUS33 KKCI 121155
MKCW WST 121155
CONVECTIVE SIGMET 23W
VALID UNTIL 1355Z
UT ID
FROM 20WSW PIH-20NE MLD-30SW SLC-20NW BVL-20WSW PIH
AREA TS MOV FROM 24020KT. TOPS TO FL270.
```
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 first 209 nm of the route.
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 348 to 408 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 348 to 687 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 398 to 567 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 458 to 1165 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 518 to 607 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 518 to 946 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 577 to 737 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 856 to 886 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1015 to 1274 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 SWO.

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

urgent BE20 at 500 ft, 44 nm southwest, 4:34 am CDT (09:34 UTC): remarks: low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl. 189 nm along the route, 44 nm southwest of the line.
as filed, and in English
```
LBL UUA /OV LBL/TM 0934/FL005/TP BE20/RM LLWS 500FT +/-10KT ZKC FD DL
```
Report
an urgent report filed through LBL
Where
over LBL
Time
09:34 UTC
Height
at 500 ft
Aircraft
BE20
Remarks
low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl
CRJ7 at 28,000 ft, 29 nm northeast, 6:25 am CDT (11:25 UTC): light turbulence, remarks: zkc fd dl. 149 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
DDC UA /OV DDC090024/TM 1125/FL280/TP CRJ7/TB LGT/RM ZKC FD DL
```
Report
a routine report filed through DDC
Where
24 nm east (090°) of DDC
Time
11:25 UTC
Height
at 28,000 ft
Aircraft
CRJ7
Turbulence
light
Remarks
zkc fd dl
B738 at 11,000 ft, 31 nm southwest, 6:42 am CDT (11:42 UTC): light chop turbulence, remarks: during the climb. 388 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
COS UA /OV BRK172014/TM 1142/FL110/TP B738/TB LGT CHOP/RM DURC
```
Report
a routine report filed through COS
Where
14 nm south (172°) of BRK
Time
11:42 UTC
Height
at 11,000 ft
Aircraft
B738
Turbulence
light chop
Remarks
during the climb
UAL1735 at 19,000 ft, 9 nm southwest, 6:50 am CDT (11:50 UTC): light chop turbulence, wind 237° at 58 knots. 438 nm along the route, 9 nm southwest of the line.
as filed, and in English
```
ARP UAL1735 3925N 10525W 1150 F190 237/058KT TB INTMT LGT CHOP IC
```
Report
a routine report filed through ARP
B752 at 23,000 ft, 20 nm southwest, 6:39 am CDT (11:39 UTC): no turbulence, remarks: zdvwc. 448 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN231058/TM 1139/FL230/TP B752/TB NEG/RM ZDVWC
```
Report
a routine report filed through DEN
Where
58 nm southwest (231°) of DEN
Time
11:39 UTC
Height
at 23,000 ft
Aircraft
B752
Turbulence
none
Remarks
zdvwc
B38M at 21,000 ft, 21 nm northeast, 6:24 am CDT (11:24 UTC): light to moderate chop turbulence, remarks: during the climb zdvwc. 458 nm along the route, 21 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN277039/TM 1124/FL210/TP B38M/TB LGT-MOD CHOP BLO 180 NEG ABV 180/RM DURC. ZDVWC
```
Report
a routine report filed through DEN
Where
39 nm west (277°) of DEN
Time
11:24 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
light to moderate chop below 18,000 ft no above 18,000 ft
Remarks
during the climb zdvwc
B763 at 23,000 ft, 22 nm northeast, 5:26 am CDT (10:26 UTC): light chop turbulence, remarks: zdvwc. 458 nm along the route, 22 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN278037/TM 1026/FL230/TP B763/TB OCNL LGT CHOP/RM ZDVWC
```
Report
a routine report filed through DEN
Where
37 nm west (278°) of DEN
Time
10:26 UTC
Height
at 23,000 ft
Aircraft
B763
Turbulence
occasional light chop
Remarks
zdvwc
CRJ2 at 19,000 ft, 49 nm north, 6:49 am CDT (11:49 UTC): no turbulence, remarks: ZDVWC-13. 488 nm along the route, 49 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN304074/TM 1149/FL190/TP CRJ2/TB NEG/RM ZDVWC-13
```
Report
a routine report filed through DEN
Where
74 nm northwest (304°) of DEN
Time
11:49 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
none
Remarks
ZDVWC-13

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 12 forecast points nearest it (OKC, GAG, GCK, GLD, PUB, DEN, GJT, RKS, SLC, PIH, 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	260° at 12 kt	+9 kt	7 °C	111 kt	11 h 34 min	4:52 pm PDT (23:52 UTC)
6,500 ft	260° at 12 kt	+8 kt	7 °C	112 kt	11 h 28 min	4:46 pm PDT (23:46 UTC)
8,500 ft	250° at 14 kt	+10 kt	5 °C	110 kt	11 h 40 min	4:58 pm PDT (23:58 UTC)
10,500 ft	240° at 16 kt	+10 kt	1 °C	110 kt	11 h 40 min	4:58 pm PDT (23:58 UTC)
12,500 ft	240° at 19 kt	+10 kt	-3 °C	110 kt	11 h 40 min	4:58 pm PDT (23:58 UTC)
14,500 ft	230° at 23 kt	+11 kt	-6 °C	109 kt	11 h 47 min	5:05 pm PDT (00:05 UTC)
16,500 ft	230° at 27 kt	+12 kt	-10 °C	108 kt	11 h 53 min	5:11 pm PDT (00:11 UTC)
18,000 ft FL180	230° at 30 kt	+13 kt	-13 °C	107 kt	12 h	5:18 pm PDT (00:18 UTC)
24,000 ft FL240	230° at 34 kt	+15 kt	-24 °C	105 kt	12 h 14 min	5:32 pm PDT (00:32 UTC)
30,000 ft FL300	240° at 47 kt	+27 kt	-32 °C	93 kt	13 h 48 min	7:06 pm PDT (02:06 UTC)
34,000 ft FL340	250° at 51 kt	+33 kt	-36 °C	87 kt	14 h 46 min	8:04 pm PDT (03:04 UTC)
39,000 ft FL390	240° at 47 kt	+28 kt	-45 °C	92 kt	13 h 57 min	7:15 pm PDT (02:15 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
OKC	used from 0 nm out; 59 nm from the line	220/43	230/31 17°	260/13 16°	270/11 7°	240/20 -6°	250/32 -17°	260/60 -28°	280/50 -37°	290/45 -50°
GAG	used from 50 nm out; 71 nm from the line		240/35 22°	240/27 14°	230/25 6°	240/38 -7°	230/44 -19°	250/73 -28°	270/66 -37°	270/58 -49°
GCK	used from 149 nm out; 31 nm from the line		240/40 22°	240/40 14°	240/38 7°	230/39 -7°	230/45 -20°	250/73 -28°	260/74 -36°	260/64 -49°
GLD	used from 249 nm out; 66 nm from the line		260/37	260/25 14°	250/27 8°	230/36 -8°	230/49 -21°	250/71 -30°	260/82 -36°	250/73 -48°
PUB	used from 299 nm out; 71 nm from the line			260/45 11°	240/38 6°	230/47 -8°	230/51 -19°	240/74 -29°	240/82 -35°	250/72 -48°
DEN	used from 398 nm out; 31 nm from the line			270/24 11°	230/13 5°	230/48 -8°	230/46 -20°	230/63 -30°	240/78 -36°	240/78 -48°
GJT	used from 498 nm out; 93 nm from the line			220/26 6°	230/39 0°	220/55 -13°	230/60 -23°	230/78 -31°	230/80 -35°	230/74 -44°
RKS	used from 597 nm out; 51 nm from the line			250/9	230/21 -1°	210/43 -14°	220/59 -23°	220/55 -32°	220/53 -35°	220/48 -44°
SLC	used from 697 nm out; 56 nm from the line		200/16	210/23 4°	220/34 -3°	210/40 -16°	220/66 -23°	220/64 -31°	220/57 -36°	220/50 -43°
PIH	used from 796 nm out; 62 nm from the line		070/8	150/19 1°	180/32 -4°	210/44 -17°	210/37 -28°	210/74 -31°	220/68 -35°	220/60 -43°
BOI	used from 896 nm out; 78 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 1095 nm out; 85 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°

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
SWO Stillwater, OK	departure	VFR	from the south-southeast (160°) at 5 knots	10+ mi	none	1,000 ft	6:53 am CDT (11:53 UTC)
WDG Enid, OK	40 nm out, 7 nm south of the line, tower	VFR	from the south (180°) at 14 knots	10+ mi	none	1,167 ft	11:45 UTC
GCK Garden City, KS	199 nm out, 10 nm north of the line, tower	VFR	from the southwest (220°) at 20 knots, gusting to 31	10+ mi	none	2,890 ft	11:54 UTC
LIC Limon, CO	368 nm out, 19 nm northeast of the line	VFR	from the west-northwest (290°) at 5 knots	10+ mi	none	5,374 ft	11:55 UTC
APA Denver, CO	418 nm out, 11 nm north of the line, tower	VFR	from the north-northeast (030°) at 12 knots, gusting to 16	10+ mi	none	5,884 ft	11:53 UTC
CAG Craig, CO	557 nm out, 11 nm northeast of the line	VFR Sky: scattered clouds at 7,000 feet	from the south-southwest (210°) at 16 knots, gusting to 26	10+ mi	none	6,197 ft	11:53 UTC
EVW Evanston, WY	717 nm out, 7 nm southwest of the line	VFR Sky: scattered clouds at 4,700 feet, a broken layer at 7,000 feet, overcast at 9,500 feet Weather: light rain	from the south (190°) at 11 knots	10+ mi	7,000 ft	7,142 ft	11:53 UTC
TWF Twin Falls, ID	886 nm out, 10 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,200 feet, overcast at 3,100 feet	from the west (260°) at 7 knots	10+ mi	1,200 ft	4,153 ft	12:03 UTC
BNO Burns, OR	1095 nm out, 15 nm north of the line	VFR	from the north (360°) at 5 knots	10+ mi	none	4,148 ft	11:53 UTC
BDN Bend, OR	1194 nm out, 19 nm north of the line	VFR Sky: a few clouds at 5,000 feet, a few clouds at 5,500 feet, overcast at 8,000 feet	calm	10+ mi	8,000 ft	3,459 ft	11:55 UTC
EUG Eugene, OR	destination	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	373 ft	4:54 am PDT (11:54 UTC)

The highest airport on this list sits at 7,142 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, 4:46 pm PDT (23:46 UTC)

Wind from the north at 6 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for EUG

From Mon 5:00 am PDT (12:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, clear skies

The forecast for SWO, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south at 13 knots, gusting to 23, visibility more than 6 miles, low-level wind shear, clear skies
From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 16 knots, gusting to 26, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 8:00 pm CDT (01:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered 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 SWO 6:56 pm CDT (23:56 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

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern Rockies · 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: Stillwater Regional, Mahlon Sweet Field.