Plan a flight · Mon 2:07 am CDT (07:07 UTC)

Northwest Arkansas Ntl Airport to Mahlon Sweet Field XNA → EUG

1,398 nautical miles (1,609 statute miles) northwest on a straight line, true course 299°, about 298° magnetic at the departure end (variation 1E). At 120 knots that is 12 h 09 min at the quickest height in today's winds (4,500 ft, a 5-knot headwind), arriving about 12:16 pm PDT (19:16 UTC). Right now XNA is VFR, wind from the south-southwest (200°) at 4 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: 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 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). Over the first 449 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 449 to 829 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 459 to 789 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 579 to 739 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 639 to 1038 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 679 to 749 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 689 to 1058 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 989 to 1128 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.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1248 to 1288 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 XNA.

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

B738 descending, 20 nm southwest, 1:15 am CDT (06:15 UTC): light chop turbulence. 529 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
```
Report
a routine report filed through DEN
Where
over DEN
Time
06:15 UTC
Height
during the descent
Aircraft
B738
Turbulence
light chop
A20N at 25,000 ft, 44 nm southwest, 1:19 am CDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. 569 nm along the route, 44 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
```
Report
a routine report filed through DEN
Where
45 nm west (250°) of DEN
Time
06:19 UTC
Height
at 25,000 ft
Aircraft
A20N
Turbulence
occasional light chop below 26,000 ft
Remarks
during the climb ZDVWC-06
B38M at 21,500 ft, 6 nm northwest, 11:33 pm CDT (04:33 UTC): light turbulence up to 25,000 ft, remarks: during the descent flati star ZDVWC-13. 589 nm along the route, 6 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN305065/TM 0433/FL215/TP B38M/TB LGT BLO 250/RM DURD FLATI STAR. ZDVWC-13
```
Report
a routine report filed through DEN
Where
65 nm northwest (305°) of DEN
Time
04:33 UTC
Height
at 21,500 ft
Aircraft
B38M
Turbulence
light below 25,000 ft
Remarks
during the descent flati star ZDVWC-13
E175 at 6,300 ft, 49 nm north, 11:20 pm CDT (04:20 UTC): overcast above 6,300 ft, remarks: during the descent runway 31. 1009 nm along the route, 49 nm north 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, 24 nm north, 11:25 pm CDT (04:25 UTC): no icing, remarks: during the descent runway 5. 1308 nm along the route, 24 nm north 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 9 forecast points nearest it (TUL, ICT, GCK, GLD, DEN, RKS, 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	230° at 16 kt	+5 kt	5 °C	115 kt	12 h 09 min	12:16 pm PDT (19:16 UTC)
6,500 ft	240° at 15 kt	+7 kt	8 °C	113 kt	12 h 22 min	12:29 pm PDT (19:29 UTC)
8,500 ft	230° at 16 kt	+7 kt	6 °C	113 kt	12 h 22 min	12:29 pm PDT (19:29 UTC)
10,500 ft	240° at 17 kt	+10 kt	3 °C	110 kt	12 h 43 min	12:50 pm PDT (19:50 UTC)
12,500 ft	240° at 20 kt	+12 kt	-1 °C	108 kt	12 h 57 min	1:04 pm PDT (20:04 UTC)
14,500 ft	240° at 22 kt	+12 kt	-5 °C	108 kt	12 h 57 min	1:04 pm PDT (20:04 UTC)
16,500 ft	230° at 24 kt	+12 kt	-9 °C	108 kt	12 h 57 min	1:04 pm PDT (20:04 UTC)
18,000 ft FL180	230° at 25 kt	+11 kt	-12 °C	109 kt	12 h 50 min	12:57 pm PDT (19:57 UTC)
24,000 ft FL240	240° at 31 kt	+16 kt	-23 °C	104 kt	13 h 27 min	1:34 pm PDT (20:34 UTC)
30,000 ft FL300	240° at 42 kt	+25 kt	-30 °C	95 kt	14 h 43 min	2:50 pm PDT (21:50 UTC)
34,000 ft FL340	240° at 47 kt	+30 kt	-36 °C	90 kt	15 h 32 min	3:39 pm PDT (22:39 UTC)
39,000 ft FL390	240° at 45 kt	+31 kt	-44 °C	89 kt	15 h 42 min	3:49 pm PDT (22:49 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
TUL	used from 0 nm out; 57 nm from the line	210/37	240/29 17°	260/15 14°	260/11 7°	240/22 -6°	250/29 -16°	270/45 -29°	270/47 -40°	280/44 -50°
ICT	used from 100 nm out; 46 nm from the line	200/48	230/39 19°	240/24 14°	240/20 8°	240/22 -6°	250/31 -18°	250/61 -29°	260/58 -38°	270/54 -49°
GCK	used from 250 nm out; 66 nm from the line		220/48 21°	230/37 14°	250/30 8°	230/37 -6°	240/37 -20°	240/69 -28°	250/67 -37°	260/58 -48°
GLD	used from 349 nm out; 24 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
DEN	used from 449 nm out; 62 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
RKS	used from 649 nm out; 85 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
PIH	used from 849 nm out; 68 nm from the line		L/V	240/13 1°	240/15 -3°	210/42 -15°	200/70 -25°	220/74 -29°	220/71 -36°	220/62 -43°
BOI	used from 999 nm out; 78 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 1198 nm out; 92 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°

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
XNA Fayetteville/Springdale/Rogers, AR	departure	VFR	from the south-southwest (200°) at 4 knots	10+ mi	none	1,288 ft	1:53 am CDT (06:53 UTC)
GMJ Grove, OK	30 nm out, 8 nm northeast of the line	VFR	from the south (170°) at 5 knots	10+ mi	none	831 ft	06:55 UTC
ICT Wichita, KS	170 nm out, 3 nm north of the line, tower	VFR	from the south (190°) at 11 knots	10+ mi	none	1,332 ft	06:53 UTC
ITR Burlington, CO	419 nm out, 8 nm south of the line	VFR	from the south (190°) at 8 knots	10+ mi	none	4,218 ft	06:53 UTC
FNL Fort Collins/Loveland, CO	559 nm out, 11 nm north of the line, tower	VFR	from the south (170°) at 7 knots	10+ mi	none	5,020 ft	06:56 UTC
DWX Dixon, WY	679 nm out, 3 nm north of the line	VFR Sky: scattered clouds at 11,000 feet	from the south-southeast (160°) at 13 knots, gusting to 19	10+ mi	none	6,548 ft	06:55 UTC
EMM Kemmerer, WY	829 nm out, 3 nm east of the line	VFR Sky: scattered clouds at 9,000 feet	from the west (260°) at 8 knots	10+ mi	none	7,288 ft	06:55 UTC
MLD Malad City, ID	909 nm out, 4 nm southeast of the line	no report just now				4,503 ft
TWF Twin Falls, ID	1009 nm out, 13 nm south of the line, tower	VFR Sky: overcast at 3,600 feet Weather: light rain	from the south-southwest (200°) at 9 knots	7 mi	3,600 ft	4,153 ft	06:53 UTC
BNO Burns, OR	1208 nm out, 5 nm north of the line	VFR Sky: a few clouds at 5,000 feet	from the north (350°) at 3 knots	10+ mi	none	4,148 ft	06:53 UTC
RDM Redmond, OR	1308 nm out, 24 nm north 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 7,288 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, 12:16 pm PDT (19:16 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

The forecast for XNA, the departure

From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet
From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 16 knots, gusting to 25, visibility more than 6 miles, clear skies
From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 6 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 XNA 6:45 pm CDT (23:45 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 lower Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern 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: Northwest Arkansas Ntl Airport, Mahlon Sweet Field.