The U.S. aircraft register, updated daily
Plan a flight · Mon 5:02 am MDT (11:02 UTC)

Grand Junction Regional to Spokane International GJT → GEG

643 nautical miles (740 statute miles) northwest on a straight line, true course 325°, about 316° magnetic at the departure end (variation 9E). At 120 knots that is 4 h 44 min at the quickest height in today's winds (30,000 ft, a 16-knot tailwind), arriving about 8:46 am PDT (15:46 UTC). Right now GJT is VFR, wind from the southeast (130°) at 15 knots, gusting to 24; GEG is VFR, wind from the northeast (040°) at 6 knots. 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: 1 flights in the DOT's last twelve reported months, the route's page.

The return flight

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 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 30 nm of the route.
  • AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 416 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 148 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 614 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 524 nm out.
  • AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 218 nm of the route.
  • AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 168 nm of 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 GJT.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

Not fetched just now.

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, RKS, SLC, PIH, DLN, LWS, GEG). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft090° at 3 kt−2 kt-2 °C122 kt5 h 16 min9:18 am PDT (16:18 UTC)
6,500 ft110° at 3 kt−3 kt-4 °C123 kt5 h 14 min9:16 am PDT (16:16 UTC)
8,500 ft190° at 10 kt−7 kt-2 °C127 kt5 h 04 min9:06 am PDT (16:06 UTC)
10,500 ft200° at 15 kt−8 kt-3 °C128 kt5 h 01 min9:03 am PDT (16:03 UTC)
12,500 ft210° at 20 kt−9 kt-5 °C129 kt4 h 59 min9:01 am PDT (16:01 UTC)
14,500 ft210° at 23 kt−11 kt-10 °C131 kt4 h 55 min8:57 am PDT (15:57 UTC)
16,500 ft210° at 26 kt−13 kt-14 °C133 kt4 h 50 min8:52 am PDT (15:52 UTC)
18,000 ft FL180200° at 29 kt−14 kt-17 °C134 kt4 h 48 min8:50 am PDT (15:50 UTC)
24,000 ft FL240210° at 40 kt−15 kt-27 °C135 kt4 h 46 min8:48 am PDT (15:48 UTC)
30,000 ft FL300220° at 51 kt−16 kt-32 °C136 kt4 h 44 min8:46 am PDT (15:46 UTC)
34,000 ft FL340220° at 54 kt−14 kt-36 °C134 kt4 h 48 min8:50 am PDT (15:50 UTC)
39,000 ft FL390220° at 52 kt−12 kt-43 °C132 kt4 h 52 min8:54 am PDT (15:54 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
GJTused from 0 nm out; 25 nm from the line220/26 6°230/39 0°220/55 -13°230/60 -23°230/78 -31°230/80 -35°230/74 -44°
RKSused from 99 nm out; 66 nm from the line250/9230/21 -1°210/43 -14°220/59 -23°220/55 -32°220/53 -35°220/48 -44°
SLCused from 148 nm out; 71 nm from the line200/16210/23 4°220/34 -3°210/40 -16°220/66 -23°220/64 -31°220/57 -36°220/50 -43°
PIHused from 198 nm out; 71 nm from the line070/8150/19 1°180/32 -4°210/44 -17°210/37 -28°210/74 -31°220/68 -35°220/60 -43°
DLNused from 346 nm out; 78 nm from the line190/10 -4°220/23 -4°210/21 -18°210/43 -28°210/60 -33°210/72 -37°210/67 -44°
LWSused from 495 nm out; 62 nm from the lineL/V340/5 -3°L/V -6°040/7 -10°100/23 -22°180/30 -31°190/11 -34°200/11 -36°220/23 -40°
GEGused from 594 nm out; 25 nm from the line060/7 -2°070/12 -6°050/8 -8°120/11 -21°110/18 -33°030/22 -37°040/6 -38°240/7 -41°

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

AirportWhereConditionsWindVisibilityCeilingElevationReported
GJT Grand Junction, CO departure VFR Sky: overcast at 7,500 feet from the southeast (130°) at 15 knots, gusting to 24 10+ mi 7,500 ft 4,861 ft 4:53 am MDT (10:53 UTC)
VEL Vernal, UT 89 nm out, 8 nm northeast of the line VFR Sky: a broken layer at 3,300 feet, overcast at 4,200 feet from the east (090°) at 4 knots 10+ mi 3,300 ft 5,274 ft 10:53 UTC
FBR Fort Bridger, WY 158 nm out, 9 nm northeast of the line VFR Sky: a broken layer at 7,000 feet from the southeast (140°) at 7 knots 10+ mi 7,000 ft 7,038 ft 10:55 UTC
PIH Pocatello, ID 297 nm out, 17 nm southwest of the line, tower marginal VFR Sky: a few clouds at 1,000 feet, a broken layer at 2,500 feet, overcast at 3,100 feet Weather: light rain from the west-northwest (290°) at 8 knots 8 mi 2,500 ft 4,451 ft 10:53 UTC
AOC Arco, ID 346 nm out, 16 nm southwest of the line no report just now 5,334 ft
LLJ Challis, ID 416 nm out, 13 nm southwest of the line marginal VFR Sky: overcast at 2,700 feet from the north-northwest (330°) at 6 knots 10+ mi 2,700 ft 5,075 ft 10:55 UTC
GIC Grangeville, ID 524 nm out, 21 nm southwest of the line marginal VFR Sky: overcast at 1,500 feet calm 10+ mi 1,500 ft 3,313 ft 10:35 UTC
PUW Pullman/Moscow, WA 594 nm out, 21 nm southwest of the line VFR Sky: overcast at 4,700 feet calm 10+ mi 4,700 ft 2,566 ft 10:53 UTC
GEG Spokane, WA destination VFR Sky: a few clouds at 5,000 feet, scattered clouds at 8,500 feet, a broken layer at 10,000 feet from the northeast (040°) at 6 knots 10+ mi 10,000 ft 2,385 ft 3:53 am PDT (10:53 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 GEG when you get there the forecast at the estimated arrival, 8:46 am PDT (15:46 UTC)

Wind from the northeast at 7 knots, visibility more than 6 miles, scattered clouds at 7,000 feet VFR

The whole forecast for GEG
  • From Sun 11:00 pm PDT (06:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
  • From Mon 1:00 pm PDT (20:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
The forecast for GJT, the departure
  • From Mon 12:00 am MDT (06:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
  • From Mon 2:00 am MDT (08:00 UTC): wind from the south at 18 knots, gusting to 27, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 7,000 feet
  • 30% chance between Mon 2:00 am MDT (08:00 UTC) and 8:00 am MDT (14:00 UTC): visibility 4 miles, light rain showers, a broken layer at 3,500 feet
  • From Mon 8:00 am MDT (14:00 UTC): wind from the south-southeast at 19 knots, gusting to 31, visibility more than 6 miles, scattered clouds at 4,500 feet, a broken layer at 7,000 feet
  • 30% chance between Mon 8:00 am MDT (14:00 UTC) and 12:00 pm MDT (18:00 UTC): visibility 4 miles, light rain showers, a broken layer at 3,500 feet
  • From Mon 12:00 pm MDT (18:00 UTC): wind from the south-southwest at 16 knots, gusting to 24, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
  • 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,000 feet, a broken layer at 6,000 feet
  • From Mon 6:00 pm MDT (00:00 UTC): wind from the west at 12 knots, gusting to 21, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 8,000 feet
  • 30% chance between Mon 6:00 pm MDT (00:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)

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 GEG 6:06 pm PDT (01:06 UTC) (civil twilight ends 6:37 pm PDT (01:37 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

Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar now, the northern Rockies
Radar now, the northern Rockies · loop National Weather Service
Radar now, the Pacific Northwest
Radar now, the Pacific Northwest · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

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, Spokane International.