Dallas-Fort Worth International to Mahlon Sweet Field DFW → EUG
1,394 nautical miles (1,604 statute miles) northwest on a straight line, true course 307°, about 303° magnetic at the departure end (variation 4E). At 120 knots that is 11 h 26 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 10:41 am PDT (17:41 UTC). Right now DFW is VFR, wind from the south (180°) at 12 knots; EUG 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: 12 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 route from 328 to 378 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 378 to 886 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 418 to 528 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 468 to 667 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 538 to 826 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 667 to 1065 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 707 to 1055 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1005 to 1115 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 209 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, 1284 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 DFW.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B733 at 20,000 ft, 7 nm north, 10:16 pm CDT (03:16 UTC): light chop turbulence up to 20,000 ft, clear from 20,000 ft to 60,000 ft, remarks: during the climb ZDVWC-12. 587 nm along the route, 7 nm north of the line.
as filed, and in English
GUC UA /OV HBU/TM 0316/FL200/TP B733/SK SKC/TB OCNL LGT CHOP BLO 200/RM DURC ZDVWC-12
- Report
- a routine report filed through GUC
- Where
- over HBU
- Time
- 03:16 UTC
- Height
- at 20,000 ft
- Aircraft
- B733
- Sky
- clear
- Turbulence
- occasional light chop below 20,000 ft
- Remarks
- during the climb ZDVWC-12
- BE20 at 16,000 ft, 46 nm northeast, 10:28 pm CDT (03:28 UTC): light chop turbulence, light rime icing, -3 °C, remarks: ZDVWC-11. 647 nm along the route, 46 nm northeast of the line.
as filed, and in English
RIL UA /OV RIL/TM 0328/FL160/TP BE20/TA M03/TB LGT CHOP/IC LGT RIME/RM ZDVWC-11
- Report
- a routine report filed through RIL
- Where
- over RIL
- Time
- 03:28 UTC
- Height
- at 16,000 ft
- Aircraft
- BE20
- Temperature
- −3 °C
- Turbulence
- light chop
- Icing
- light rime
- Remarks
- ZDVWC-11
- B737 at 10,000 ft, 39 nm north, 11:25 pm CDT (04:25 UTC): no icing, remarks: during the descent runway 5. 1314 nm along the route, 39 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 12 forecast points nearest it (DAL, SPS, AMA, TCC, PUB, ALS, GJT, SLC, BAM, BOI, LKV, 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 | 210° at 14 kt | −2 kt | 0 °C | 122 kt | 11 h 26 min | 10:41 am PDT (17:41 UTC) |
| 6,500 ft | 220° at 12 kt | 0 | 7 °C | 120 kt | 11 h 37 min | 10:52 am PDT (17:52 UTC) |
| 8,500 ft | 230° at 13 kt | +3 kt | 3 °C | 117 kt | 11 h 55 min | 11:10 am PDT (18:10 UTC) |
| 10,500 ft | 240° at 17 kt | +6 kt | 2 °C | 114 kt | 12 h 14 min | 11:29 am PDT (18:29 UTC) |
| 12,500 ft | 240° at 19 kt | +8 kt | -1 °C | 112 kt | 12 h 27 min | 11:42 am PDT (18:42 UTC) |
| 14,500 ft | 230° at 21 kt | +8 kt | -5 °C | 112 kt | 12 h 27 min | 11:42 am PDT (18:42 UTC) |
| 16,500 ft | 230° at 23 kt | +7 kt | -9 °C | 113 kt | 12 h 20 min | 11:35 am PDT (18:35 UTC) |
| 18,000 ft FL180 | 230° at 25 kt | +6 kt | -12 °C | 114 kt | 12 h 14 min | 11:29 am PDT (18:29 UTC) |
| 24,000 ft FL240 | 240° at 28 kt | +10 kt | -22 °C | 110 kt | 12 h 40 min | 11:55 am PDT (18:55 UTC) |
| 30,000 ft FL300 | 240° at 42 kt | +21 kt | -30 °C | 99 kt | 14 h 05 min | 1:20 pm PDT (20:20 UTC) |
| 34,000 ft FL340 | 240° at 46 kt | +25 kt | -35 °C | 95 kt | 14 h 40 min | 1:55 pm PDT (20:55 UTC) |
| 39,000 ft FL390 | 240° at 43 kt | +22 kt | -45 °C | 98 kt | 14 h 13 min | 1:28 pm PDT (20:28 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DAL | used from 0 nm out; 34 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
| SPS | used from 50 nm out; 25 nm from the line | 200/39 | 220/28 17° | 230/27 12° | 240/15 9° | 250/15 -4° | 250/24 -15° | 260/45 -28° | 270/43 -39° | 280/45 -51° |
| AMA | used from 199 nm out; 50 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| TCC | used from 348 nm out; 78 nm from the line | 210/42 | 230/33 14° | 230/32 6° | 220/35 -6° | 230/49 -19° | 240/72 -27° | 250/62 -36° | 250/52 -48° | |
| PUB | used from 398 nm out; 86 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° | ||
| ALS | used from 448 nm out; 42 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| GJT | used from 597 nm out; 49 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -45° | ||
| SLC | used from 747 nm out; 88 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| BAM | used from 995 nm out; 96 nm from the line | 310/7 0° | 270/19 -7° | 200/38 -17° | 190/49 -28° | 220/69 -29° | 220/63 -33° | 230/48 -41° | ||
| BOI | used from 1045 nm out; 90 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° | |
| LKV | used from 1145 nm out; 94 nm from the line | 010/8 -8° | 350/13 -11° | 340/21 -21° | 360/60 -26° | 350/37 -32° | 310/26 -35° | 260/25 -39° | ||
| RDM | used from 1244 nm out; 59 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 |
|---|---|---|---|---|---|---|---|
| DFW Dallas-Fort Worth, TX | departure | VFR | from the south (180°) at 12 knots | 10+ mi | none | 606 ft | 12:53 am CDT (05:53 UTC) |
| DTO Denton, TX | 20 nm out, 10 nm northeast of the line, tower | VFR | from the south (170°) at 10 knots | 10+ mi | none | 642 ft | 05:53 UTC |
| AMA Amarillo, TX | 269 nm out, 20 nm southwest of the line, tower | VFR | from the south (190°) at 22 knots, gusting to 29 | 10+ mi | none | 3,606 ft | 05:53 UTC |
| CAO Clayton, NM | 368 nm out, 3 nm north of the line | VFR | from the south-southwest (210°) at 19 knots, gusting to 28 | 10+ mi | none | 4,969 ft | 05:55 UTC |
| TAD Trinidad, CO | 448 nm out, 13 nm northeast of the line | VFR | from the west-southwest (240°) at 18 knots, gusting to 26 | 10+ mi | none | 5,761 ft | 05:54 UTC |
| GJT Grand Junction, CO | 667 nm out, 7 nm north of the line, tower | VFR Sky: a few clouds at 6,000 feet, overcast at 10,000 feet | variable at 4 knots | 10+ mi | 10,000 ft | 4,861 ft | 05:53 UTC |
| PVU Provo, UT | 836 nm out, 8 nm south of the line, tower | VFR Sky: a broken layer at 4,900 feet, overcast at 6,000 feet | calm | 10+ mi | 4,900 ft | 4,496 ft | 05:56 UTC |
| SLC Salt Lake City, UT | 856 nm out, 18 nm north of the line, tower | VFR Sky: a few clouds at 1,700 feet, a few clouds at 4,400 feet, overcast at 17,000 feet | from the southeast (130°) at 7 knots | 10+ mi | 17,000 ft | 4,230 ft | 05:54 UTC |
| LWL Wells, NV | 985 nm out, 24 nm southwest of the line | no report just now | 5,769 ft | ||||
| REO Rome, OR | 1145 nm out, 2 nm east of the line | reported, no category | from the north-northeast (020°) at 6 knots | none | 4,053 ft | 05:52 UTC | |
| EUG Eugene, OR | destination | VFR Sky: scattered clouds at 7,000 feet | calm | 10+ mi | none | 373 ft | 10:54 pm PDT (05:54 UTC) |
The highest airport on this list sits at 5,769 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, 10:41 am PDT (17:41 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 DFW, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am CDT (15:00 UTC): wind from the south at 12 knots, gusting to 23, visibility more than 6 miles, a few clouds at 20,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 9/2934 DALLAS, TX 11 nm from the route, at the departure end · a VIP movement · ZFW
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 8 nm from the route, at the departure end · drones kept away from a public gathering · starts Thursday 15 October · ZFW
Daylight
Sunset at DFW 6:58 pm CDT (23:58 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: Dallas-Fort Worth International, Mahlon Sweet Field.
