Mahlon Sweet Field to Denver International EUG → DEN
864 nautical miles (994 statute miles) east on a straight line, true course 101°, about 086° magnetic at the departure end (variation 15E). At 120 knots that is 5 h 37 min at the quickest height in today's winds (39,000 ft, a 34-knot tailwind), arriving about 12:09 am MDT (06:09 UTC), after sunset at the destination. Right now EUG is VFR, wind from the north-northwest (330°) at 8 knots; DEN is VFR, wind from the south-southeast (160°) at 17 knots, gusting to 23. 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: 2,522 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 W71W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the south at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 437 to 556 nm out.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 71W VALID UNTIL 0155Z WY UT ID FROM 40S DBS-40WNW BPI-30WSW MTU-30SSW DTA-30SE TWF-40S DBS AREA EMBD TS MOV FROM 20040KT. TOPS TO FL270.
- SIGMET W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 665 to 675 nm out.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 70W VALID UNTIL 0155Z MT WY FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS AREA TS MOV FROM 22040KT. TOPS TO FL320.
- SIGMET W68W: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Near the route, 705 nm along the route.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 68W VALID UNTIL 0155Z CO NM AZ UT FROM 30W CHE-20NNW TBE-60SE ABQ-40N SJN-30SW MTU-30W CHE AREA TS MOV FROM 23040KT. TOPS TO FL360.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 25,000 ft to 39,000 ft. Over the first 10 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 60 to 794 nm out.
- AIRMET ZULU 2C: moderate icing up to 14,000 ft. Near the route, 119 nm along the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 268 to 635 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 576 nm of the route.
- 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 457 to 516 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 377 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 506 to 774 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 645 to 705 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 EUG.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent PC12 at 13,000 ft, 43 nm south, 2:48 pm PDT (21:48 UTC): severe turbulence from 13,000 ft to 14,000 ft, remarks: lots of moderate, moments of severe. 506 nm along the route, 43 nm south of the line.
as filed, and in English
SLC UUA /OV OGD280010/TM 2148/FL130/TP PC12/TB SEV 140-130/RM LOTS OF MODERATE, MOMENTS OF SEV
- Report
- an urgent report filed through SLC
- Where
- 10 nm west (280°) of OGD
- Time
- 21:48 UTC
- Height
- at 13,000 ft
- Aircraft
- PC12
- Turbulence
- severe from 14,000 ft to 13,000 ft
- Remarks
- lots of moderate, moments of severe
- urgent E545 at 6,000 ft, 18 nm southwest, 2:49 pm PDT (21:49 UTC): remarks: low-level wind shear + 5 knots fap runway 17L. At the destination end, 18 nm southwest of the line.
as filed, and in English
APA UUA /OV APA350002/TM 2149/FL060/TP E545/RM LLWS +/- 5 KT FAP RWY 17L
- Report
- an urgent report filed through APA
- Where
- 2 nm north (350°) of APA
- Time
- 21:49 UTC
- Height
- at 6,000 ft
- Aircraft
- E545
- Remarks
- low-level wind shear + 5 knots fap runway 17L
- A339 at 16,000 ft, 38 nm south, 4:35 pm PDT (23:35 UTC): moderate chop turbulence up to 16,000 ft, remarks: during the climb zlc. 526 nm along the route, 38 nm south of the line.
as filed, and in English
OGD UA /OV OGD063012/TM 2335/FL160/TP A339/TB MOD CHOP 160 BLO/RM DURC /ZLC
- Report
- a routine report filed through OGD
- Where
- 12 nm northeast (063°) of OGD
- Time
- 23:35 UTC
- Height
- at 16,000 ft
- Aircraft
- A339
- Turbulence
- moderate chop at 16,000 ft below
- Remarks
- during the climb zlc
- E75L at 14,500 ft, 43 nm south, 4:05 pm PDT (23:05 UTC): moderate turbulence up to 15,800 ft, heavy rain, remarks: during the climb zlc. 526 nm along the route, 43 nm south of the line.
as filed, and in English
OGD UA /OV OGD086008/TM 2305/FL145/TP E75L/WX +RA/TB MOD 158 BLO/RM DURC /ZLC
- Report
- a routine report filed through OGD
- Where
- 8 nm east (086°) of OGD
- Time
- 23:05 UTC
- Height
- at 14,500 ft
- Aircraft
- E75L
- Weather
- heavy rain
- Turbulence
- moderate at 15,800 ft below
- Remarks
- during the climb zlc
- E75L at 12,500 ft, 49 nm south, 3:25 pm PDT (22:25 UTC): moderate turbulence. 526 nm along the route, 49 nm south of the line.
as filed, and in English
HIF UA /OV HIF103005/TM 2225/FL125/TP E75L/TB MOD /ZLC
- Report
- a routine report filed through HIF
- Where
- 5 nm east (103°) of HIF
- Time
- 22:25 UTC
- Height
- at 12,500 ft
- Aircraft
- E75L
- Turbulence
- moderate zlc
- A21N at 33,000 ft, 10 nm south, 3:35 pm PDT (22:35 UTC): moderate turbulence, remarks: mountain wave +25-30KTS. 735 nm along the route, 10 nm south of the line.
as filed, and in English
HDN UA /OV CHE/TM 2235/FL330/TP A21N/TB MOD/RM MTN WAVE +25-30KTS
- Report
- a routine report filed through HDN
- Where
- over CHE
- Time
- 22:35 UTC
- Height
- at 33,000 ft
- Aircraft
- A21N
- Turbulence
- moderate
- Remarks
- mountain wave +25-30KTS
- B39M at 32,000 ft, 6 nm southwest, 4:58 pm PDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. 784 nm along the route, 6 nm southwest of the line.
as filed, and in English
EEO UA /OV EKR069073/TM 2358/FL320/TP B39M/TB OCNL MOD CHOP/IC NEG/RM MOD MTW +/-30KT ZDVWC-14
- Report
- a routine report filed through EEO
- Where
- 73 nm east (069°) of EKR
- Time
- 23:58 UTC
- Height
- at 32,000 ft
- Aircraft
- B39M
- Turbulence
- occasional moderate chop
- Icing
- none
- Remarks
- moderate mtw a 30-knot loss of airspeed ZDVWC-14
- A319 at 22,000 ft, 25 nm northeast, 2:42 pm PDT (21:42 UTC): moderate chop turbulence, remarks: ZDVWC-13. 804 nm along the route, 25 nm northeast of the line.
as filed, and in English
BJC UA /OV BJC322047/TM 2142/FL220/TP A319/TB MOD CHOP/RM ZDVWC-13
- Report
- a routine report filed through BJC
- Where
- 47 nm northwest (322°) of BJC
- Time
- 21:42 UTC
- Height
- at 22,000 ft
- Aircraft
- A319
- Turbulence
- moderate chop
- Remarks
- ZDVWC-13
- BCS3 at 24,000 ft, 24 nm northeast, 4:28 pm PDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 824 nm along the route, 24 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
- Report
- a routine report filed through DEN
- Where
- 45 nm northwest (320°) of DEN
- Time
- 23:28 UTC
- Height
- at 24,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate from 24,000 ft to 22,000 ft
- Remarks
- during the descent
- A21N at 32,000 ft, 46 nm northeast, 4:42 pm PDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. At the destination end, 46 nm northeast of the line.
as filed, and in English
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
- Report
- a routine report filed through AKO
- Where
- 30 nm west (270°) of AKO
- Time
- 23:42 UTC
- Height
- at 32,000 ft
- Aircraft
- A21N
- Turbulence
- intermittent moderate chop
- Remarks
- ZDVWC-61
- GLF5 at 45,000 ft, 38 nm south, 3:44 pm PDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. At the destination end, 38 nm south of the line.
as filed, and in English
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 25 nm north (350°) of COS
- Time
- 22:44 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF5
- Turbulence
- moderate
- Remarks
- ZDVWC-46
- E75L at 9,000 ft, 13 nm northeast, 4:05 pm PDT (23:05 UTC): light rime icing, -6 °C, remarks: zse. 79 nm along the route, 13 nm northeast 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
- E75L at 9,500 ft, 26 nm north, 4:07 pm PDT (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. 89 nm along the route, 26 nm north 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
- E170 at 10,000 ft, 26 nm north, 3:02 pm PDT (22:02 UTC): light rime icing from 7,000 ft to 10,000 ft. 89 nm along the route, 26 nm north of the line.
as filed, and in English
RDM UA /OV RDM/TM 2202/FL100/TP E170/SK BASE 065-TOPS UNKN/TA UNKN/IC LGT RIME 100-070
- Report
- a routine report filed through RDM
- Where
- over RDM
- Time
- 22:02 UTC
- Height
- at 10,000 ft
- Aircraft
- E170
- Sky
- base 065-TOPS unknown
- Temperature
- UNKN
- Icing
- light rime from 10,000 ft to 7,000 ft
16 more routine reports are on the map.
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 eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 6 forecast points nearest it (RDM, BOI, PIH, SLC, RKS, DEN). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 340° at 11 kt | −6 kt | 1 °C | 126 kt | 6 h 51 min | 1:23 am MDT (07:23 UTC) |
| 7,500 ft | 200° at 11 kt | 0 | 2 °C | 120 kt | 7 h 12 min | 1:44 am MDT (07:44 UTC) |
| 9,500 ft | 200° at 14 kt | 0 | -1 °C | 120 kt | 7 h 12 min | 1:44 am MDT (07:44 UTC) |
| 11,500 ft | 210° at 21 kt | −4 kt | -4 °C | 124 kt | 6 h 58 min | 1:30 am MDT (07:30 UTC) |
| 13,500 ft | 220° at 24 kt | −6 kt | -6 °C | 126 kt | 6 h 51 min | 1:23 am MDT (07:23 UTC) |
| 15,500 ft | 220° at 24 kt | −6 kt | -10 °C | 126 kt | 6 h 51 min | 1:23 am MDT (07:23 UTC) |
| 17,500 ft | 220° at 25 kt | −7 kt | -14 °C | 127 kt | 6 h 48 min | 1:20 am MDT (07:20 UTC) |
| 18,000 ft FL180 | 220° at 25 kt | −7 kt | -15 °C | 127 kt | 6 h 48 min | 1:20 am MDT (07:20 UTC) |
| 24,000 ft FL240 | 220° at 26 kt | −7 kt | -24 °C | 127 kt | 6 h 48 min | 1:20 am MDT (07:20 UTC) |
| 30,000 ft FL300 | 220° at 35 kt | −12 kt | -33 °C | 132 kt | 6 h 33 min | 1:05 am MDT (07:05 UTC) |
| 34,000 ft FL340 | 230° at 49 kt | −28 kt | -36 °C | 148 kt | 5 h 50 min | 12:22 am MDT (06:22 UTC) |
| 39,000 ft FL390 | 240° at 53 kt | −34 kt | -43 °C | 154 kt | 5 h 37 min | 12:09 am MDT (06:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RDM | used from 0 nm out; 66 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° | |
| BOI | used from 199 nm out; 87 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° | |
| PIH | used from 397 nm out; 63 nm from the line | 270/10 | 270/13 1° | 210/16 -2° | 200/56 -11° | 200/51 -23° | 200/68 -33° | 220/77 -37° | 230/73 -44° | |
| SLC | used from 496 nm out; 68 nm from the line | 280/8 | 210/39 5° | 210/52 -1° | 200/50 -11° | 200/56 -23° | 220/61 -28° | 230/73 -37° | 230/73 -45° | |
| RKS | used from 546 nm out; 72 nm from the line | 190/43 | 210/65 3° | 210/57 -9° | 210/56 -21° | 210/47 -33° | 230/63 -37° | 240/77 -46° | ||
| DEN | used from 745 nm out; 94 nm from the line | 190/31 16° | 210/32 7° | 240/41 -8° | 230/47 -21° | 240/56 -32° | 250/65 -37° | 250/61 -47° |
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 |
|---|---|---|---|---|---|---|---|
| EUG Eugene, OR | departure | VFR Sky: a few clouds at 4,500 feet, scattered clouds at 7,500 feet | from the north-northwest (330°) at 8 knots | 10+ mi | none | 373 ft | 4:54 pm PDT (23:54 UTC) |
| BDN Bend, OR | 89 nm out, 16 nm north of the line | VFR Sky: scattered clouds at 3,100 feet, scattered clouds at 3,600 feet, overcast at 4,600 feet | from the north-northwest (340°) at 8 knots | 10+ mi | 4,600 ft | 3,459 ft | 00:15 UTC |
| BNO Burns, OR | 189 nm out, 8 nm north of the line | VFR | from the north-northwest (340°) at 13 knots, gusting to 25 | 10+ mi | none | 4,148 ft | 23:53 UTC |
| TWF Twin Falls, ID | 397 nm out, 6 nm southwest of the line, tower | VFR Sky: overcast at 4,000 feet | from the south (180°) at 5 knots | 10+ mi | 4,000 ft | 4,153 ft | 23:53 UTC |
| MLD Malad City, ID | 496 nm out, 8 nm north of the line | no report just now | 4,503 ft | ||||
| FBR Fort Bridger, WY | 586 nm out, 10 nm south of the line | VFR Sky: scattered clouds at 6,500 feet, a broken layer at 7,500 feet, overcast at 8,500 feet | from the west-southwest (250°) at 11 knots, gusting to 17 | 10+ mi | 7,500 ft | 7,038 ft | 00:15 UTC |
| RKS Rock Springs, WY | 635 nm out, 23 nm northeast of the line | VFR Sky: a few clouds at 11,000 feet | from the south (180°) at 12 knots, gusting to 24 | 10+ mi | none | 6,764 ft | 23:54 UTC |
| SBS Steamboat Springs, CO | 755 nm out, 3 nm south of the line | VFR Sky: overcast at 10,000 feet | from the south (190°) at 7 knots | 10+ mi | 10,000 ft | 6,882 ft | 00:15 UTC |
| BJC Denver, CO | 844 nm out, 5 nm southwest of the line, tower | VFR | from the north-northwest (340°) at 8 knots | 10+ mi | none | 5,673 ft | 23:51 UTC |
| DEN Denver, CO | destination | VFR Sky: a few clouds at 11,000 feet, a few clouds at 16,000 feet, a broken layer at 22,000 feet | from the south-southeast (160°) at 17 knots, gusting to 23 | 10+ mi | 22,000 ft | 5,433 ft | 5:53 pm MDT (23:53 UTC) |
The highest airport on this list sits at 7,038 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DEN when you get there the forecast at the estimated arrival, 12:09 am MDT (06:09 UTC)
Wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet VFR
The whole forecast for DEN
- From Sun 7:00 pm MDT (01:00 UTC): wind from the south at 14 knots, gusting to 21, visibility more than 6 miles, a few clouds at 10,000 feet, a few clouds at 14,000 feet and more above
- From Sun 7:00 pm MDT (01:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet
- From Mon 1:00 am MDT (07:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
- From Mon 4:00 pm MDT (22:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
- From Mon 7:00 pm MDT (01:00 UTC): wind from the northeast at 8 knots, visibility more than 6 miles, clear skies
The forecast for EUG, the departure
- 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
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 EUG 6:34 pm PDT (01:34 UTC), at DEN 6:24 pm MDT (00:24 UTC) (civil twilight ends 6:51 pm MDT (00:51 UTC)). At 120 knots the arrival at DEN is before sunrise there (7:05 am MDT (13:05 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: Mahlon Sweet Field, Denver International.
