Robert Gray Army Airfield to Portland International GRK → PDX
1,446 nautical miles (1,664 statute miles) northwest on a straight line, true course 314°, about 310° magnetic at the departure end (variation 4E). At 120 knots that is 12 h 09 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 6:16 pm PDT (01:16 UTC). 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 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 W25W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the west at 45 knots, until 9:55 am CDT (14:55 UTC). Over the route from 878 to 938 nm out.
as issued
WSUS33 KKCI 121255 MKCW WST 121255 CONVECTIVE SIGMET 25W VALID UNTIL 1455Z WY UT ID FROM PIH-40W BPI-30SE SLC-40E BVL-PIH AREA TS MOV FROM 26045KT. TOPS TO FL270.
- AIRMET TANGO 2W: 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 150 to 219 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 439 to 868 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 479 to 698 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 529 to 529 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 638 to 1327 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). Near the route, 688 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 698 to 1097 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 708 to 898 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 1027 nm along the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 279 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 GRK.
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 11 forecast points nearest it (ABI, LBB, AMA, TCC, ALS, GJT, SLC, PIH, BOI, RDM, PDX). 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 | 230° at 11 kt | +1 kt | 9 °C | 119 kt | 12 h 09 min | 6:16 pm PDT (01:16 UTC) |
| 6,500 ft | 230° at 11 kt | +1 kt | 7 °C | 119 kt | 12 h 09 min | 6:16 pm PDT (01:16 UTC) |
| 8,500 ft | 230° at 11 kt | +1 kt | 4 °C | 119 kt | 12 h 09 min | 6:16 pm PDT (01:16 UTC) |
| 10,500 ft | 230° at 16 kt | +4 kt | 2 °C | 116 kt | 12 h 28 min | 6:35 pm PDT (01:35 UTC) |
| 12,500 ft | 230° at 20 kt | +5 kt | -2 °C | 115 kt | 12 h 34 min | 6:41 pm PDT (01:41 UTC) |
| 14,500 ft | 230° at 23 kt | +5 kt | -5 °C | 115 kt | 12 h 34 min | 6:41 pm PDT (01:41 UTC) |
| 16,500 ft | 230° at 26 kt | +5 kt | -9 °C | 115 kt | 12 h 34 min | 6:41 pm PDT (01:41 UTC) |
| 18,000 ft FL180 | 230° at 29 kt | +5 kt | -12 °C | 115 kt | 12 h 34 min | 6:41 pm PDT (01:41 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | +11 kt | -22 °C | 109 kt | 13 h 16 min | 7:23 pm PDT (02:23 UTC) |
| 30,000 ft FL300 | 240° at 47 kt | +16 kt | -31 °C | 104 kt | 13 h 54 min | 8:01 pm PDT (03:01 UTC) |
| 34,000 ft FL340 | 240° at 48 kt | +21 kt | -37 °C | 99 kt | 14 h 36 min | 8:43 pm PDT (03:43 UTC) |
| 39,000 ft FL390 | 240° at 43 kt | +17 kt | -45 °C | 103 kt | 14 h 02 min | 8:09 pm PDT (03:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ABI | used from 0 nm out; 99 nm from the line | 200/30 19° | 220/12 16° | 220/11 9° | 230/15 -5° | 250/26 -15° | 250/39 -28° | 270/36 -38° | 280/30 -51° | |
| LBB | used from 199 nm out; 38 nm from the line | 220/25 21° | 230/20 15° | 220/20 7° | 230/36 -6° | 240/50 -15° | 240/59 -28° | 260/52 -37° | 260/45 -50° | |
| AMA | used from 299 nm out; 51 nm from the line | 230/32 | 230/28 14° | 230/27 7° | 230/38 -6° | 230/50 -17° | 250/69 -28° | 260/62 -37° | 270/65 -49° | |
| TCC | used from 349 nm out; 16 nm from the line | 240/20 | 230/22 13° | 230/27 6° | 230/40 -7° | 240/55 -18° | 240/74 -27° | 240/68 -37° | 250/64 -49° | |
| ALS | used from 449 nm out; 80 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| GJT | used from 648 nm out; 44 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 798 nm out; 77 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 997 nm out; 95 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 1047 nm out; 85 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° | |
| RDM | used from 1247 nm out; 91 nm from the line | 360/14 -2° | 020/25 -8° | 360/34 -13° | 360/75 -16° | 360/88 -25° | 360/80 -39° | 350/47 -42° | 360/11 -43° | |
| PDX | used from 1396 nm out; 25 nm from the line | L/V | 340/8 0° | 360/12 -6° | 010/30 -7° | 360/62 -15° | 360/67 -26° | 360/68 -40° | 350/61 -48° | 340/26 -44° |
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 |
|---|---|---|---|---|---|---|---|
| GRK Fort Hood (Killeen), TX | departure | no report just now | 1,015 ft | ||||
| ABI Abilene, TX | 120 nm out, 8 nm west of the line, tower | no report just now | 1,790 ft | ||||
| LBB Lubbock, TX | 249 nm out, 25 nm southwest of the line, tower | no report just now | 3,282 ft | ||||
| HRX Hereford, TX | 319 nm out, 13 nm northeast of the line | no report just now | 3,787 ft | ||||
| AXX Angel Fire, NM | 489 nm out, 11 nm southwest of the line | no report just now | 8,379 ft | ||||
| GJT Grand Junction, CO | 708 nm out, 19 nm northeast of the line, tower | no report just now | 4,861 ft | ||||
| PUC Price, UT | 818 nm out, 21 nm southwest of the line | no report just now | 5,957 ft | ||||
| SLC Salt Lake City, UT | 898 nm out, 4 nm north of the line, tower | no report just now | 4,230 ft | ||||
| TWF Twin Falls, ID | 1047 nm out, 23 nm northeast of the line, tower | no report just now | 4,153 ft | ||||
| GCD John Day, OR | 1277 nm out, 15 nm northeast of the line | no report just now | 3,702 ft | ||||
| CZK Cascade Locks, OR | 1426 nm out, 20 nm northeast of the line | no report just now | 151 ft | ||||
| PDX Portland, OR | destination | no report just now | 30 ft |
The highest airport on this list sits at 8,379 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PDX when you get there the forecast at the estimated arrival, 6:16 pm PDT (01:16 UTC)
PDX has no terminal forecast; use the nearest airport that does.
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 GRK 7:02 pm CDT (00:02 UTC), at PDX 6:28 pm PDT (01:28 UTC) (civil twilight ends 6:58 pm PDT (01:58 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: Robert Gray Army Airfield, Portland International.