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 11:13 am PDT (18:13 UTC). 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
- urgent B737 at 7,600 ft, 25 nm south, 10:22 pm CDT (03:22 UTC): remarks: low-level wind shear 45 knots crosswind on final. 659 nm along the route, 25 nm south of the line.
as filed, and in English
HDN UUA /OV HDN/TM 0322/FL076/TP B737/RM LLWS 45 KTS CROSSWIND ON FINAL
- Report
- an urgent report filed through HDN
- Where
- over HDN
- Time
- 03:22 UTC
- Height
- at 7,600 ft
- Aircraft
- B737
- Remarks
- low-level wind shear 45 knots crosswind on final
- A320 descending, 20 nm southwest, 10:19 pm CDT (03:19 UTC): no turbulence up to 10,000 ft. 529 nm along the route, 20 nm southwest of the line.
as filed, and in English
DEN UA /OV DEN/TM 0319/FLDURD/TP A320/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 03:19 UTC
- Height
- during the descent
- Aircraft
- A320
- Turbulence
- no below 10,000 ft
- 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
- CRJ7 at 6,300 ft, 36 nm north, 10:27 pm CDT (03:27 UTC): overcast above 6,300 ft, remarks: during the descent. 929 nm along the route, 36 nm north of the line.
as filed, and in English
PIH UA /OV KPIH/TM 0327/FL063/TP CRJ7/SK OVC063-TOPUNKN/RM DURD
- Report
- a routine report filed through PIH
- Where
- over KPIH
- Time
- 03:27 UTC
- Height
- at 6,300 ft
- Aircraft
- CRJ7
- Sky
- overcast from 6,300 ft, tops unknown
- Remarks
- during the descent
- 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
- E175 at 5,900 ft, 49 nm north, 10:29 pm CDT (03:29 UTC): a broken layer above 5,900 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 0329/FL059/TP E175/SK BKN059-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 03:29 UTC
- Height
- at 5,900 ft
- Aircraft
- E175
- Sky
- a broken layer from 5,900 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
- UAL737 at 31,000 ft, 5 nm northwest, 10:17 pm CDT (03:17 UTC): no turbulence, wind 358° at 94 knots. At the destination end, 5 nm northwest of the line.
as filed, and in English
ARP UAL737 4410N 12318W 0317 F310 358/094KT TB SMTH IC
- Report
- a routine report filed through ARP
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 | 11:13 am PDT (18:13 UTC) |
| 6,500 ft | 240° at 15 kt | +7 kt | 8 °C | 113 kt | 12 h 22 min | 11:26 am PDT (18:26 UTC) |
| 8,500 ft | 230° at 16 kt | +7 kt | 6 °C | 113 kt | 12 h 22 min | 11:26 am PDT (18:26 UTC) |
| 10,500 ft | 240° at 17 kt | +10 kt | 3 °C | 110 kt | 12 h 43 min | 11:47 am PDT (18:47 UTC) |
| 12,500 ft | 240° at 20 kt | +12 kt | -1 °C | 108 kt | 12 h 57 min | 12:01 pm PDT (19:01 UTC) |
| 14,500 ft | 240° at 22 kt | +12 kt | -5 °C | 108 kt | 12 h 57 min | 12:01 pm PDT (19:01 UTC) |
| 16,500 ft | 230° at 24 kt | +12 kt | -9 °C | 108 kt | 12 h 57 min | 12:01 pm PDT (19:01 UTC) |
| 18,000 ft FL180 | 230° at 25 kt | +11 kt | -12 °C | 109 kt | 12 h 50 min | 11:54 am PDT (18:54 UTC) |
| 24,000 ft FL240 | 240° at 31 kt | +16 kt | -23 °C | 104 kt | 13 h 27 min | 12:31 pm PDT (19:31 UTC) |
| 30,000 ft FL300 | 240° at 42 kt | +25 kt | -30 °C | 95 kt | 14 h 43 min | 1:47 pm PDT (20:47 UTC) |
| 34,000 ft FL340 | 240° at 47 kt | +30 kt | -36 °C | 90 kt | 15 h 32 min | 2:36 pm PDT (21:36 UTC) |
| 39,000 ft FL390 | 240° at 45 kt | +31 kt | -44 °C | 89 kt | 15 h 42 min | 2:46 pm PDT (21:46 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 | no report just now | 1,288 ft | ||||
| GMJ Grove, OK | 30 nm out, 8 nm northeast of the line | no report just now | 831 ft | ||||
| ICT Wichita, KS | 170 nm out, 3 nm north of the line, tower | no report just now | 1,332 ft | ||||
| ITR Burlington, CO | 419 nm out, 8 nm south of the line | no report just now | 4,218 ft | ||||
| FNL Fort Collins/Loveland, CO | 559 nm out, 11 nm north of the line, tower | no report just now | 5,020 ft | ||||
| DWX Dixon, WY | 679 nm out, 3 nm north of the line | no report just now | 6,548 ft | ||||
| EMM Kemmerer, WY | 829 nm out, 3 nm east of the line | no report just now | 7,288 ft | ||||
| 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 | no report just now | 4,153 ft | ||||
| BNO Burns, OR | 1208 nm out, 5 nm north of the line | no report just now | 4,148 ft | ||||
| RDM Redmond, OR | 1308 nm out, 24 nm north of the line, tower | no report just now | 3,081 ft | ||||
| EUG Eugene, OR | destination | no report just now | 373 ft |
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, 11:13 am PDT (18:13 UTC)
EUG has no terminal forecast; use the nearest airport that does.
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 6:34 pm PDT (01:34 UTC) (civil twilight ends 7:03 pm PDT (02:03 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: Northwest Arkansas Ntl Airport, Mahlon Sweet Field.
