Seattle-Tacoma International to Montrose Regional SEA → MTJ
828 nautical miles (953 statute miles) southeast on a straight line, true course 125°, about 109° magnetic at the departure end (variation 16E). At 120 knots that is 6 h 19 min at the quickest height in today's winds (39,000 ft, a 11-knot tailwind), arriving about 12:39 am MDT (06:39 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north-northwest (340°) at 10 knots; MTJ is VFR, wind from the southwest (220°) at 14 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 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 479 to 638 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 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). Over the last 120 nm of 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 ZULU 2C: moderate icing up to 14,000 ft. Over the route from 110 to 279 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 658 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 539 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 339 to 559 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 349 to 718 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 289 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 last 269 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 638 to 668 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent PC12 at 13,000 ft, 19 nm southwest, 2:48 pm PDT (21:48 UTC): severe turbulence from 13,000 ft to 14,000 ft, remarks: lots of moderate, moments of severe. 568 nm along the route, 19 nm southwest 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 BCS3 at 5,400 ft, 49 nm southwest, 4:35 pm PDT (23:35 UTC): remarks: wind shear 10 knots gain 1000 above ground on final. 628 nm along the route, 49 nm southwest of the line.
as filed, and in English
PVU UUA /OV PVU310001/TM 2335/FL054/TP BCS3/RM WIND SHEAR 10 KT GAIN 1000 AGL ON FINAL
- Report
- an urgent report filed through PVU
- Where
- 1 nm northwest (310°) of PVU
- Time
- 23:35 UTC
- Height
- at 5,400 ft
- Aircraft
- BCS3
- Remarks
- wind shear 10 knots gain 1000 above ground on final
- A339 at 16,000 ft, 7 nm south, 4:35 pm PDT (23:35 UTC): moderate chop turbulence up to 16,000 ft, remarks: during the climb zlc. 578 nm along the route, 7 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, 12 nm southwest, 4:05 pm PDT (23:05 UTC): moderate turbulence up to 15,800 ft, heavy rain, remarks: during the climb zlc. 578 nm along the route, 12 nm southwest 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
- B739 at 11,000 ft, 41 nm southwest, 3:40 pm PDT (22:40 UTC): moderate turbulence, no icing, -4 °C, wind 180° at 40 knots, remarks: during the descent. 588 nm along the route, 41 nm southwest of the line.
as filed, and in English
SLC UA /OV TCH240014/TM 2240/FL110/TP B739/TA M04/WV 180040/TB CONT MOD /IC NEG/RM DURD
- Report
- a routine report filed through SLC
- Where
- 14 nm southwest (240°) of TCH
- Time
- 22:40 UTC
- Height
- at 11,000 ft
- Aircraft
- B739
- Temperature
- −4 °C
- Wind
- from 180° at 40 knots
- Turbulence
- continuous moderate
- Icing
- none
- Remarks
- during the descent
- E75L at 12,500 ft, 15 nm southwest, 3:25 pm PDT (22:25 UTC): moderate turbulence. 588 nm along the route, 15 nm southwest 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
- A320 at 6,600 ft, 34 nm southwest, 2:55 pm PDT (21:55 UTC): moderate turbulence, -2 °C, wind 200° at 55 knots, remarks: during the climb from 6,600 ft to 10,000 ft. 588 nm along the route, 34 nm southwest of the line.
as filed, and in English
SLC UA /OV TCH250007/TM 2155/FL066/TP A320/SK BASE 066 TOPS UNK/TA -2/WV 20055KT/TB OCNL MOD TURB/RM DURC 066-100
- Report
- a routine report filed through SLC
- Where
- 7 nm west (250°) of TCH
- Time
- 21:55 UTC
- Height
- at 6,600 ft
- Aircraft
- A320
- Sky
- base 6,600 ft tops unknown
- Temperature
- -2
- Wind
- from 200° at 55 knots
- Turbulence
- occasional moderate turbulence
- Remarks
- during the climb from 6,600 ft to 10,000 ft
- B737 at 12,000 ft, 37 nm southwest, 2:22 pm PDT (21:22 UTC): light turbulence, moderate rime icing, -1 °C, remarks: during the climb from 7,000 ft to 14,500 ft. 588 nm along the route, 37 nm southwest of the line.
as filed, and in English
SLC UA /OV TCH240010/TM 2122/FL120/TP B737/TA M01/TB LGT OCNL ,OD TURB/IC MOD RIME/RM DURC 070-145
- Report
- a routine report filed through SLC
- Where
- 10 nm southwest (240°) of TCH
- Time
- 21:22 UTC
- Height
- at 12,000 ft
- Aircraft
- B737
- Temperature
- −1 °C
- Turbulence
- light occasional, od turbulence
- Icing
- moderate rime
- Remarks
- during the climb from 7,000 ft to 14,500 ft
- PA44 at 6,000 ft, 49 nm southwest, 4:25 pm PDT (23:25 UTC): moderate turbulence, remarks: runway in sight at at 6,400 ft. 628 nm along the route, 49 nm southwest of the line.
as filed, and in English
PVU UA /OV PVU310002/TM 2325/FL060/TP PA44/TB MOD /RM RWY IN SIGHT AT 064
- Report
- a routine report filed through PVU
- Where
- 2 nm northwest (310°) of PVU
- Time
- 23:25 UTC
- Height
- at 6,000 ft
- Aircraft
- PA44
- Turbulence
- moderate
- Remarks
- runway in sight at at 6,400 ft
- E170 at 10,000 ft, 3 nm east, 4:41 pm PDT (23:41 UTC): moderate turbulence up to 10,000 ft, remarks: during the climb. 788 nm along the route, 3 nm east of the line.
as filed, and in English
GJT UA /OV GJT144009/TM 2341/FL100/TP E170/TB MOD SFC-100/RM DURC
- Report
- a routine report filed through GJT
- Where
- 9 nm southeast (144°) of GJT
- Time
- 23:41 UTC
- Height
- at 10,000 ft
- Aircraft
- E170
- Turbulence
- moderate from the surface to 10,000 ft
- Remarks
- during the climb
- C680 at 18,000 ft, 45 nm northeast, 3:35 pm PDT (22:35 UTC): moderate turbulence, remarks: from 18,000 ft to 10,000 ft. At the destination end, 45 nm northeast of the line.
as filed, and in English
ASE UA /OV ASE230020/TM 2235/FL180/TP C680/TB MOD/RM 180-100
- Report
- a routine report filed through ASE
- Where
- 20 nm southwest (230°) of ASE
- Time
- 22:35 UTC
- Height
- at 18,000 ft
- Aircraft
- C680
- Turbulence
- moderate
- Remarks
- from 18,000 ft to 10,000 ft
- C210 at 9,000 ft, 38 nm southwest, 3:51 pm PDT (22:51 UTC): light rime icing, -13 °C, remarks: base 080-ZSE. 160 nm along the route, 38 nm southwest of the line.
as filed, and in English
PDT UA /OV PDT230040/TM 2251/FL090/TP C210/TA M13/IC LGT RIME/RM BASE 080-ZSE
- Report
- a routine report filed through PDT
- Where
- 40 nm southwest (230°) of PDT
- Time
- 22:51 UTC
- Height
- at 9,000 ft
- Aircraft
- C210
- Temperature
- −13 °C
- Icing
- light rime
- Remarks
- base 080-ZSE
- GL7T at 40,000 ft, 6 nm east, 2:35 pm PDT (21:35 UTC): light to moderate turbulence from 37,500 ft to 40,000 ft, remarks: durd-zse. 199 nm along the route, 6 nm east of the line.
as filed, and in English
PDT UA /OV PDT100030/TM 2135/FL400/TP GL7T/TB OCNL LGT-MOD 400-375/RM DURD-ZSE
- Report
- a routine report filed through PDT
- Where
- 30 nm east (100°) of PDT
- Time
- 21:35 UTC
- Height
- at 40,000 ft
- Aircraft
- GL7T
- Turbulence
- occasional light to moderate from 40,000 ft to 37,500 ft
- Remarks
- durd-zse
- CL60 descending, 30 nm southwest, 4:00 pm PDT (23:00 UTC): remarks: + 10 knots on final. 349 nm along the route, 30 nm southwest of the line.
as filed, and in English
BOI UA /OV BOI/TM 2300/FLDURD/TP CL60/RM +/- 10 KTS ON FINAL
- Report
- a routine report filed through BOI
- Where
- over BOI
- Time
- 23:00 UTC
- Height
- during the descent
- Aircraft
- CL60
- Remarks
- + 10 knots on final
12 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 7 forecast points nearest it (SEA, YKM, LWS, BOI, PIH, SLC, GJT). 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 8 kt | −7 kt | 4 °C | 127 kt | 6 h 31 min | 12:51 am MDT (06:51 UTC) |
| 7,500 ft | 250° at 7 kt | −2 kt | 1 °C | 122 kt | 6 h 47 min | 1:07 am MDT (07:07 UTC) |
| 9,500 ft | 220° at 10 kt | +1 kt | -1 °C | 119 kt | 6 h 57 min | 1:17 am MDT (07:17 UTC) |
| 11,500 ft | 210° at 16 kt | +3 kt | -4 °C | 117 kt | 7 h 05 min | 1:25 am MDT (07:25 UTC) |
| 13,500 ft | 210° at 20 kt | +5 kt | -8 °C | 115 kt | 7 h 12 min | 1:32 am MDT (07:32 UTC) |
| 15,500 ft | 210° at 23 kt | +7 kt | -11 °C | 113 kt | 7 h 20 min | 1:40 am MDT (07:40 UTC) |
| 17,500 ft | 210° at 26 kt | +8 kt | -15 °C | 112 kt | 7 h 24 min | 1:44 am MDT (07:44 UTC) |
| 18,000 ft FL180 | 210° at 26 kt | +8 kt | -16 °C | 112 kt | 7 h 24 min | 1:44 am MDT (07:44 UTC) |
| 24,000 ft FL240 | 210° at 26 kt | +6 kt | -25 °C | 114 kt | 7 h 16 min | 1:36 am MDT (07:36 UTC) |
| 30,000 ft FL300 | 220° at 33 kt | +3 kt | -33 °C | 117 kt | 7 h 05 min | 1:25 am MDT (07:25 UTC) |
| 34,000 ft FL340 | 230° at 44 kt | −5 kt | -37 °C | 125 kt | 6 h 37 min | 12:57 am MDT (06:57 UTC) |
| 39,000 ft FL390 | 230° at 48 kt | −11 kt | -43 °C | 131 kt | 6 h 19 min | 12:39 am MDT (06:39 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 360/9 | 350/10 1° | 010/10 -5° | 030/20 -11° | 020/60 -17° | 010/86 -26° | 360/90 -40° | 010/68 -42° | 360/31 -43° |
| YKM | used from 50 nm out; 15 nm from the line | 030/16 | 020/18 0° | 030/30 -8° | 030/23 -13° | 020/40 -23° | 010/73 -29° | 010/54 -36° | 360/29 -37° | 330/16 -40° |
| LWS | used from 199 nm out; 81 nm from the line | 010/5 | 050/14 -2° | 040/12 -6° | 160/7 -10° | 190/30 -22° | 200/54 -27° | 200/48 -35° | 210/40 -37° | 230/32 -41° |
| BOI | used from 249 nm out; 77 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 399 nm out; 80 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 549 nm out; 39 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° | |
| GJT | used from 698 nm out; 58 nm from the line | 210/40 11° | 210/46 3° | 210/61 -10° | 210/68 -22° | 220/57 -29° | 230/59 -36° | 240/66 -46° |
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 |
|---|---|---|---|---|---|---|---|
| SEA Seattle, WA | departure | VFR Sky: a few clouds at 2,000 feet, a few clouds at 5,000 feet | from the north-northwest (340°) at 10 knots | 10+ mi | none | 432 ft | 4:53 pm PDT (23:53 UTC) |
| ESW Easton, WA | 40 nm out, 18 nm northeast of the line | no report just now | 2,226 ft | ||||
| YKM Yakima, WA | 90 nm out, 1 nm southwest of the line, tower | VFR Sky: a broken layer at 8,500 feet | from the north-northeast (020°) at 5 knots | 10+ mi | 8,500 ft | 1,098 ft | 23:53 UTC |
| PDT Pendleton, OR | 180 nm out, 2 nm northwest of the line, tower | VFR Sky: overcast at 6,000 feet | from the north (360°) at 7 knots | 10+ mi | 6,000 ft | 1,494 ft | 23:53 UTC |
| SUN Hailey, ID | 409 nm out, 22 nm northeast of the line, tower | marginal VFR Sky: scattered clouds at 300 feet, a broken layer at 1,300 feet, overcast at 2,200 feet Weather: light rain | from the east-southeast (120°) at 5 knots | 7 mi | 1,300 ft | 5,319 ft | 23:47 UTC |
| BYI Burley, ID | 469 nm out, 7 nm southwest of the line | VFR Sky: scattered clouds at 1,600 feet, scattered clouds at 3,000 feet, overcast at 11,000 feet | calm | 10+ mi | 11,000 ft | 4,153 ft | 23:53 UTC |
| OGD Ogden, UT | 578 nm out, 15 nm southwest of the line, tower | marginal VFR Sky: a few clouds at 900 feet, a broken layer at 2,100 feet, overcast at 3,700 feet Weather: rain, mist | from the north-northeast (020°) at 6 knots | 4 mi | 2,100 ft | 4,472 ft | 00:09 UTC |
| EVW Evanston, WY | 608 nm out, 19 nm northeast of the line | VFR Sky: scattered clouds at 6,000 feet, overcast at 7,500 feet Weather: light rain | from the southwest (220°) at 19 knots, gusting to 26 | 8 mi | 7,500 ft | 7,142 ft | 00:10 UTC |
| GJT Grand Junction, CO | 778 nm out, 6 nm east of the line, tower | VFR | from the south-southeast (160°) at 16 knots, gusting to 24 | 10+ mi | none | 4,861 ft | 23:53 UTC |
| MTJ Montrose, CO | destination | VFR Sky: scattered clouds at 10,000 feet, a broken layer at 12,000 feet | from the southwest (220°) at 14 knots, gusting to 23 | 10+ mi | 12,000 ft | 5,758 ft | 5:53 pm MDT (23:53 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 MTJ when you get there the forecast at the estimated arrival, 12:39 am MDT (06:39 UTC)
Wind from the south-southeast at 13 knots, gusting to 25, visibility more than 6 miles, showers nearby, a few clouds at 5,000 feet, scattered clouds at 12,000 feet VFR
The whole forecast for MTJ
- From Sun 6:00 pm MDT (00:00 UTC): wind from the southwest at 20 knots, gusting to 30, visibility more than 6 miles, a few clouds at 4,000 feet, a broken layer at 11,000 feet
- 30% chance between Sun 6:00 pm MDT (00:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 4 miles, light rain showers, a broken layer at 7,000 feet
- From Sun 8:00 pm MDT (02:00 UTC): wind from the south-southeast at 13 knots, gusting to 25, visibility more than 6 miles, showers nearby, a few clouds at 5,000 feet, scattered clouds at 12,000 feet
- 30% chance between Sun 8:00 pm MDT (02:00 UTC) and 10:00 pm MDT (04:00 UTC): visibility 4 miles, light rain showers, a broken layer at 7,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 11,000 feet
- From Mon 10:00 am MDT (16:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 11,000 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind from the southwest at 12 knots, gusting to 21, visibility more than 6 miles, a few clouds at 7,000 feet, scattered clouds at 11,000 feet
The forecast for SEA, the departure
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 5,000 feet
- From Sun 8:00 pm PDT (03:00 UTC): wind from the northeast at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the northwest at 5 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 SEA 6:27 pm PDT (01:27 UTC), at MTJ 6:38 pm MDT (00:38 UTC) (civil twilight ends 7:04 pm MDT (01:04 UTC)). At 120 knots the arrival at MTJ is before sunrise there (7:17 am MDT (13:17 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: Seattle-Tacoma International, Montrose Regional.
