Grand Junction Regional to Seattle-Tacoma International GJT → SEA
781 nautical miles (899 statute miles) northwest on a straight line, true course 314°, about 305° magnetic at the departure end (variation 9E). At 120 knots that is 6 h 12 min at the quickest height in today's winds (18,000 ft, a 6-knot tailwind), arriving about 11:21 am PDT (18:21 UTC). Right now GJT is VFR, wind from the east (080°) at 10 knots; SEA 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: 9 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 W23W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 7:55 am MDT (13:55 UTC). Over the route from 237 to 287 nm out.
as issued
WSUS33 KKCI 121155 MKCW WST 121155 CONVECTIVE SIGMET 23W VALID UNTIL 1355Z UT ID FROM 20WSW PIH-20NE MLD-30SW SLC-20NW BVL-20WSW PIH AREA TS MOV FROM 24020KT. TOPS TO FL270.
- 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 first 10 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 415 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 148 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 188 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 613 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 277 to 435 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 465 to 751 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 514 to 583 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 GJT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 5,000 ft, 0 nm west, 5:23 am MDT (11:23 UTC): light to moderate turbulence, no icing, remarks: during the descent zdvwc. At the departure end, 0 nm west of the line.
as filed, and in English
GJT UA /OV GJT/TM 1123/FL050/TP PC12/TB LGT-MOD/IC NEG/RM DURD. ZDVWC
- Report
- a routine report filed through GJT
- Where
- over GJT
- Time
- 11:23 UTC
- Height
- at 5,000 ft
- Aircraft
- PC12
- Turbulence
- light to moderate
- Icing
- none
- Remarks
- during the descent zdvwc
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 7 forecast points nearest it (GJT, SLC, PIH, BOI, LWS, YKM, SEA). 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 | 310° at 3 kt | +3 kt | 1 °C | 117 kt | 6 h 41 min | 11:50 am PDT (18:50 UTC) |
| 6,500 ft | 310° at 3 kt | +2 kt | -1 °C | 118 kt | 6 h 37 min | 11:46 am PDT (18:46 UTC) |
| 8,500 ft | 220° at 5 kt | 0 | -3 °C | 120 kt | 6 h 30 min | 11:39 am PDT (18:39 UTC) |
| 10,500 ft | 220° at 9 kt | −2 kt | -4 °C | 122 kt | 6 h 24 min | 11:33 am PDT (18:33 UTC) |
| 12,500 ft | 210° at 13 kt | −2 kt | -8 °C | 122 kt | 6 h 24 min | 11:33 am PDT (18:33 UTC) |
| 14,500 ft | 210° at 16 kt | −4 kt | -11 °C | 124 kt | 6 h 18 min | 11:27 am PDT (18:27 UTC) |
| 16,500 ft | 210° at 19 kt | −5 kt | -15 °C | 125 kt | 6 h 15 min | 11:24 am PDT (18:24 UTC) |
| 18,000 ft FL180 | 210° at 22 kt | −6 kt | -17 °C | 126 kt | 6 h 12 min | 11:21 am PDT (18:21 UTC) |
| 24,000 ft FL240 | 220° at 24 kt | −1 kt | -27 °C | 121 kt | 6 h 27 min | 11:36 am PDT (18:36 UTC) |
| 30,000 ft FL300 | 230° at 29 kt | +5 kt | -34 °C | 115 kt | 6 h 47 min | 11:56 am PDT (18:56 UTC) |
| 34,000 ft FL340 | 230° at 34 kt | +6 kt | -37 °C | 114 kt | 6 h 51 min | 12:00 pm PDT (19:00 UTC) |
| 39,000 ft FL390 | 230° at 36 kt | +5 kt | -42 °C | 115 kt | 6 h 47 min | 11:56 am PDT (18:56 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GJT | used from 0 nm out; 25 nm from the line | 220/26 6° | 230/39 0° | 220/55 -13° | 230/60 -23° | 230/78 -31° | 230/80 -35° | 230/74 -44° | ||
| SLC | used from 99 nm out; 70 nm from the line | 200/16 | 210/23 4° | 220/34 -3° | 210/40 -16° | 220/66 -23° | 220/64 -31° | 220/57 -36° | 220/50 -43° | |
| PIH | used from 247 nm out; 45 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| BOI | used from 346 nm out; 73 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° | |
| LWS | used from 544 nm out; 78 nm from the line | L/V | 340/5 -3° | L/V -6° | 040/7 -10° | 100/23 -22° | 180/30 -31° | 190/11 -34° | 200/11 -36° | 220/23 -40° |
| YKM | used from 593 nm out; 73 nm from the line | 360/6 | 360/11 -1° | 030/20 -7° | 040/21 -11° | 020/55 -18° | 010/84 -26° | 010/79 -40° | 010/45 -42° | 350/23 -42° |
| SEA | used from 741 nm out; 20 nm from the line | 350/5 | 010/6 0° | 010/9 -4° | 010/27 -6° | 010/51 -15° | 360/58 -26° | 360/60 -41° | 350/55 -48° | 340/30 -45° |
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 |
|---|---|---|---|---|---|---|---|
| GJT Grand Junction, CO | departure | VFR Sky: a few clouds at 6,000 feet, a broken layer at 7,500 feet, overcast at 10,000 feet | from the east (080°) at 10 knots | 10+ mi | 7,500 ft | 4,861 ft | 5:53 am MDT (11:53 UTC) |
| OGD Ogden, UT | 198 nm out, 19 nm southwest of the line, tower | VFR Sky: a few clouds at 7,000 feet, scattered clouds at 8,000 feet, scattered clouds at 12,000 feet | from the south (170°) at 17 knots, gusting to 26 | 10+ mi | none | 4,472 ft | 11:53 UTC |
| MLD Malad City, ID | 247 nm out, 17 nm northeast of the line | no report just now | 4,503 ft | ||||
| SUN Hailey, ID | 366 nm out, 19 nm northeast of the line, tower | low IFR Sky: a broken layer at 400 feet, overcast at 1,100 feet Weather: light rain | from the south-southeast (160°) at 7 knots | 10+ mi | 400 ft | 5,319 ft | 11:55 UTC |
| BKE Baker City, OR | 534 nm out, 15 nm southwest of the line | VFR Sky: overcast at 3,100 feet | variable at 3 knots | 10+ mi | 3,100 ft | 3,373 ft | 11:53 UTC |
| PDT Pendleton, OR | 603 nm out, 1 nm southwest of the line, tower | VFR Sky: overcast at 6,500 feet | from the west (280°) at 7 knots | 10+ mi | 6,500 ft | 1,494 ft | 11:53 UTC |
| YKM Yakima, WA | 692 nm out, 1 nm south of the line, tower | VFR | from the west (270°) at 5 knots | 10+ mi | none | 1,098 ft | 11:53 UTC |
| ESW Easton, WA | 741 nm out, 17 nm northeast of the line | no report just now | 2,226 ft | ||||
| SEA Seattle, WA | destination | VFR | calm | 10+ mi | none | 432 ft | 4:53 am PDT (11:53 UTC) |
The highest airport on this list sits at 5,319 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SEA when you get there the forecast at the estimated arrival, 11:21 am PDT (18:21 UTC)
Wind from the west at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for SEA
- From Mon 5:00 am PDT (12:00 UTC): wind from the southeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind light and variable, 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 south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Tue 4:00 am PDT (11:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 10,000 feet
The forecast for GJT, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the southeast at 17 knots, gusting to 28, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 8,000 feet
- At times between Mon 6:00 am MDT (12:00 UTC) and 10:00 am MDT (16:00 UTC): visibility 4 miles, light rain showers, a broken layer at 5,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the south-southwest at 18 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 6,000 feet
- 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 3:00 pm MDT (21:00 UTC): visibility 4 miles, light rain showers, a broken layer at 5,000 feet, a broken layer at 6,000 feet and more above
- From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 15 knots, gusting to 25, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 9,000 feet
- 30% chance between Mon 3:00 pm MDT (21:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Mon 8:00 pm MDT (02:00 UTC): wind from the northeast at 10 knots, gusting to 19, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 10,000 feet
- 30% chance between Mon 8:00 pm MDT (02:00 UTC) and 10:00 pm MDT (04:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Mon 10:00 pm MDT (04:00 UTC): wind from the northwest at 11 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 9,000 feet
- 30% chance between Mon 10:00 pm MDT (04:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Tue 4:00 am MDT (10:00 UTC): wind from the east-southeast at 10 knots, gusting to 20, visibility more than 6 miles, light rain showers, scattered clouds at 3,000 feet, a broken layer at 4,500 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 GJT 6:38 pm MDT (00:38 UTC), at SEA 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 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: Grand Junction Regional, Seattle-Tacoma International.