Portland International to Robert Gray Army Airfield PDX → GRK
1,446 nautical miles (1,664 statute miles) southeast on a straight line, true course 118°, about 102° magnetic at the departure end (variation 16E). At 120 knots that is 10 h 15 min at the quickest height in today's winds (34,000 ft, a 21-knot tailwind), arriving about 7:24 pm CDT (00:24 UTC), after sunset at the destination. Right now PDX is VFR, wind from the west-southwest (240°) at 3 knots; GRK is VFR, wind from the southeast (140°) at 8 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 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 W27W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the west at 45 knots, until 8:55 am PDT (15:55 UTC). Over the route from 539 to 549 nm out.
as issued
WSUS33 KKCI 121355 MKCW WST 121355 CONVECTIVE SIGMET 27W VALID UNTIL 1555Z WY UT ID FROM 40E PIH-20NW BPI-50E SLC-20SW SLC-40E PIH DMSHG AREA TS MOV FROM 26045KT. TOPS TO FL270.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 40 to 289 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 299 to 738 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 339 to 858 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, 429 nm along 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 route from 638 to 1017 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 718 to 738 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 748 to 978 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 PDX.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E170 at 12,000 ft, 32 nm southwest, 5:52 am PDT (12:52 UTC): moderate turbulence from 12,000 ft to 15,000 ft, remarks: during the climb sbound zse. 100 nm along the route, 32 nm southwest of the line.
as filed, and in English
RDM UA /OV DSD060018/TM 1252/FL120/TP E170/TB MOD 120-150/RM DURC SBOUND ZSE
- Report
- a routine report filed through RDM
- Where
- 18 nm northeast (060°) of DSD
- Time
- 12:52 UTC
- Height
- at 12,000 ft
- Aircraft
- E170
- Turbulence
- moderate from 12,000 ft to 15,000 ft
- Remarks
- during the climb sbound zse
- B739 at 27,000 ft, 6 nm south, 5:56 am PDT (12:56 UTC): moderate chop turbulence. 359 nm along the route, 6 nm south of the line.
as filed, and in English
TWF UA /OV TWF247042/TM 1256/FL270/TP B739/TB MOD CHOP/ZLC
- Report
- a routine report filed through TWF
- Where
- 42 nm southwest (247°) of TWF
- Time
- 12:56 UTC
- Height
- at 27,000 ft
- Aircraft
- B739
- Turbulence
- moderate chop/zlc
- A319 at 19,000 ft, 21 nm southwest, 6:53 am PDT (13:53 UTC): moderate turbulence, moderate rime icing, -12 °C, wind 234° at 38 knots, remarks: during the descent. 569 nm along the route, 21 nm southwest of the line.
as filed, and in English
SLC UA /OV FFU/TM 1353/FL190/TP A319/TA M12/WV 234038/TB MOD TURB/IC MOD RIME/RM DURD
- Report
- a routine report filed through SLC
- Where
- over FFU
- Time
- 13:53 UTC
- Height
- at 19,000 ft
- Aircraft
- A319
- Temperature
- −12 °C
- Wind
- from 234° at 38 knots
- Turbulence
- moderate turbulence
- Icing
- moderate rime
- Remarks
- during the descent
- CRJ7 at 16,000 ft, 42 nm southwest, 6:13 am PDT (13:13 UTC): moderate rime icing from 15,000 ft to 19,000 ft, -13 °C. 579 nm along the route, 42 nm southwest of the line.
as filed, and in English
PVU UA /OV FFU165026/TM 1313/FL160/TP CRJ7/SK TOPS 196/TA M13/IC MOD RIME 150-190/ZLC
- Report
- a routine report filed through PVU
- Where
- 26 nm south (165°) of FFU
- Time
- 13:13 UTC
- Height
- at 16,000 ft
- Aircraft
- CRJ7
- Sky
- tops 19,600 ft
- Temperature
- −13 °C
- Icing
- moderate rime 150-190/ZLC
- PC12 at 17,000 ft, 31 nm southwest, 5:40 am PDT (12:40 UTC): moderate rime icing, -13 °C. 588 nm along the route, 31 nm southwest of the line.
as filed, and in English
PVU UA /OV FFU134026/TM 1240/FL170/TP PC12/TA M13 /IC MOD RIME/ZLC
- Report
- a routine report filed through PVU
- Where
- 26 nm southeast (134°) of FFU
- Time
- 12:40 UTC
- Height
- at 17,000 ft
- Aircraft
- PC12
- Temperature
- −13 °C
- Icing
- moderate rime/zlc
- B38M at 35,000 ft, 20 nm northeast, 7:02 am PDT (14:02 UTC): light turbulence. 160 nm along the route, 20 nm northeast of the line.
as filed, and in English
BKE UA /OV BKE230055/TM 1402/FL350/TP B38M/TB OCNL LGT MOD/ZLC
- Report
- a routine report filed through BKE
- Where
- 55 nm southwest (230°) of BKE
- Time
- 14:02 UTC
- Height
- at 35,000 ft
- Aircraft
- B38M
- Turbulence
- occasional light mod/zlc
- E75L descending, 12 nm northeast, 6:55 am PDT (13:55 UTC): no icing, overcast above 7,000 ft, 6 °C, remarks: moderate precip. 539 nm along the route, 12 nm northeast of the line.
as filed, and in English
SLC UA /OV TCH358005/TM 1355/FLDURD/TP E75L/SK OVC070/TA +6/IC NEG/RM MOD PRECIP
- Report
- a routine report filed through SLC
- Where
- 5 nm north (358°) of TCH
- Time
- 13:55 UTC
- Height
- during the descent
- Aircraft
- E75L
- Sky
- overcast from 7,000 ft
- Temperature
- +6
- Icing
- none
- Remarks
- moderate precip
- B738 at 20,000 ft, 17 nm northeast, 6:30 am PDT (13:30 UTC): light turbulence. 549 nm along the route, 17 nm northeast of the line.
as filed, and in English
SLC UA /OV SLC040014/TM 1330/FL200/TP B738/TB CONS LGT 200-230 DURC/ZLC
- Report
- a routine report filed through SLC
- Where
- 14 nm northeast (040°) of SLC
- Time
- 13:30 UTC
- Height
- at 20,000 ft
- Aircraft
- B738
- Turbulence
- continuous light from 20,000 ft to 23,000 ft durc/zlc
- B190 at 12,000 ft, 9 nm southwest, 6:39 am PDT (13:39 UTC): light rime icing, remarks: during the climb. 559 nm along the route, 9 nm southwest of the line.
as filed, and in English
SLC UA /OV FFU340015/TM 1339/FL120/TP B190/IC LGT RIME/RM DURC
- Report
- a routine report filed through SLC
- Where
- 15 nm north (340°) of FFU
- Time
- 13:39 UTC
- Height
- at 12,000 ft
- Aircraft
- B190
- Icing
- light rime
- Remarks
- during the climb
- A321 at 14,000 ft, 13 nm southwest, 6:15 am PDT (13:15 UTC): light to moderate turbulence, remarks: during the climb. 559 nm along the route, 13 nm southwest of the line.
as filed, and in English
SLC UA /OV FFU340010/TM 1315/FL140/TP A321/TB CONT LGT-OCNL MOD TURB/RM DURC
- Report
- a routine report filed through SLC
- Where
- 10 nm north (340°) of FFU
- Time
- 13:15 UTC
- Height
- at 14,000 ft
- Aircraft
- A321
- Turbulence
- continuous lgt-ocnl moderate turbulence
- Remarks
- during the climb
- E75L at 17,000 ft, 31 nm southwest, 5:20 am PDT (12:20 UTC): light chop turbulence, light rime icing from 15,500 ft to 18,000 ft, -14 °C, remarks: during the descent. 579 nm along the route, 31 nm southwest of the line.
as filed, and in English
SLC UA /OV FFU140020/TM 1220/FL170/TP E75L/TA M14/TB LGTCHOP/IC LGT RIME 180-155/RM DURD
- Report
- a routine report filed through SLC
- Where
- 20 nm southeast (140°) of FFU
- Time
- 12:20 UTC
- Height
- at 17,000 ft
- Aircraft
- E75L
- Temperature
- −14 °C
- Turbulence
- lgtchop
- Icing
- light rime from 18,000 ft to 15,500 ft
- Remarks
- during the descent
- CRJ7 at 12,000 ft, 28 nm southwest, 5:01 am PDT (12:01 UTC): remarks: during the climb DITTI1. 579 nm along the route, 28 nm southwest of the line.
as filed, and in English
SLC UA /OV FFU140015/TM 1201/FL120/TP CRJ7/SK VMC BELOW 110/RM DURC DITTI1
- Report
- a routine report filed through SLC
- Where
- 15 nm southeast (140°) of FFU
- Time
- 12:01 UTC
- Height
- at 12,000 ft
- Aircraft
- CRJ7
- Sky
- visual conditions below 11,000 ft
- Remarks
- during the climb DITTI1
- PC12 at 5,000 ft, 19 nm northeast, 4:23 am PDT (11:23 UTC): light to moderate turbulence, no icing, remarks: during the descent zdvwc. 738 nm along the route, 19 nm northeast 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
- E145 at 40,000 ft, 13 nm northeast, 6:38 am PDT (13:38 UTC): no turbulence, remarks: ZFW55. 1217 nm along the route, 13 nm northeast of the line.
as filed, and in English
LBB UA /OV LBB070050/TM 1338/FL400/TP E145/TB NEG/RM ZFW55
- Report
- a routine report filed through LBB
- Where
- 50 nm east (070°) of LBB
- Time
- 13:38 UTC
- Height
- at 40,000 ft
- Aircraft
- E145
- Turbulence
- none
- Remarks
- ZFW55
3 more routine reports are on the map.
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 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 11 forecast points nearest it (PDX, RDM, BOI, PIH, SLC, GJT, ALS, TCC, AMA, LBB, ABI). 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 | 230° at 11 kt | −1 kt | 9 °C | 121 kt | 11 h 57 min | 9:06 pm CDT (02:06 UTC) |
| 7,500 ft | 230° at 12 kt | −1 kt | 6 °C | 121 kt | 11 h 57 min | 9:06 pm CDT (02:06 UTC) |
| 9,500 ft | 230° at 12 kt | −2 kt | 4 °C | 122 kt | 11 h 51 min | 9:00 pm CDT (02:00 UTC) |
| 11,500 ft | 230° at 18 kt | −5 kt | 0 °C | 125 kt | 11 h 34 min | 8:43 pm CDT (01:43 UTC) |
| 13,500 ft | 230° at 21 kt | −5 kt | -3 °C | 125 kt | 11 h 34 min | 8:43 pm CDT (01:43 UTC) |
| 15,500 ft | 230° at 25 kt | −5 kt | -8 °C | 125 kt | 11 h 34 min | 8:43 pm CDT (01:43 UTC) |
| 17,500 ft | 230° at 28 kt | −5 kt | -11 °C | 125 kt | 11 h 34 min | 8:43 pm CDT (01:43 UTC) |
| 18,000 ft FL180 | 230° at 29 kt | −5 kt | -12 °C | 125 kt | 11 h 34 min | 8:43 pm CDT (01:43 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | −12 kt | -22 °C | 132 kt | 10 h 57 min | 8:06 pm CDT (01:06 UTC) |
| 30,000 ft FL300 | 240° at 47 kt | −16 kt | -31 °C | 136 kt | 10 h 38 min | 7:47 pm CDT (00:47 UTC) |
| 34,000 ft FL340 | 240° at 48 kt | −21 kt | -37 °C | 141 kt | 10 h 15 min | 7:24 pm CDT (00:24 UTC) |
| 39,000 ft FL390 | 240° at 43 kt | −17 kt | -45 °C | 137 kt | 10 h 33 min | 7:42 pm CDT (00:42 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PDX | used from 0 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° |
| RDM | used from 50 nm out; 44 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° | |
| BOI | used from 199 nm out; 80 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° | |
| PIH | used from 399 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° | |
| SLC | used from 449 nm out; 73 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° | |
| GJT | used from 648 nm out; 63 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° | ||
| ALS | used from 798 nm out; 74 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| TCC | used from 997 nm out; 45 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° | |
| AMA | used from 1097 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° | |
| LBB | used from 1147 nm out; 31 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° | |
| ABI | used from 1247 nm out; 51 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° |
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 |
|---|---|---|---|---|---|---|---|
| PDX Portland, OR | departure | VFR Sky: a few clouds at 800 feet, a few clouds at 10,000 feet | from the west-southwest (240°) at 3 knots | 10+ mi | none | 30 ft | 6:53 am PDT (13:53 UTC) |
| CZK Cascade Locks, OR | 20 nm out, 20 nm northeast of the line | no report just now | 151 ft | ||||
| GCD John Day, OR | 170 nm out, 15 nm northeast of the line | marginal VFR Sky: overcast at 3,000 feet | from the north-northwest (330°) at 4 knots | 10+ mi | 3,000 ft | 3,702 ft | 13:55 UTC |
| TWF Twin Falls, ID | 399 nm out, 23 nm northeast of the line, tower | VFR Sky: a broken layer at 4,000 feet, overcast at 4,800 feet | from the southwest (220°) at 4 knots | 10+ mi | 4,000 ft | 4,153 ft | 13:53 UTC |
| SLC Salt Lake City, UT | 549 nm out, 4 nm north of the line, tower | VFR Sky: a few clouds at 2,000 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet, a broken layer at 20,000 feet | from the south-southeast (160°) at 18 knots, gusting to 27 | 10+ mi | 9,500 ft | 4,230 ft | 13:54 UTC |
| PVU Provo, UT | 579 nm out, 18 nm southwest of the line, tower | VFR Sky: scattered clouds at 3,000 feet, a broken layer at 5,000 feet, overcast at 7,000 feet Weather: light rain | from the east-southeast (120°) at 9 knots | 10+ mi | 5,000 ft | 4,496 ft | 13:56 UTC |
| GJT Grand Junction, CO | 738 nm out, 19 nm northeast of the line, tower | VFR Sky: overcast at 11,000 feet | from the east-southeast (120°) at 15 knots | 10+ mi | 11,000 ft | 4,861 ft | 13:53 UTC |
| AXX Angel Fire, NM | 958 nm out, 11 nm southwest of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 8,379 ft | 13:55 UTC |
| HRX Hereford, TX | 1127 nm out, 13 nm northeast of the line | VFR | from the southwest (220°) at 5 knots | 10+ mi | none | 3,787 ft | 13:50 UTC |
| LBB Lubbock, TX | 1197 nm out, 25 nm southwest of the line, tower | VFR Sky: a few clouds at 12,000 feet | from the south (170°) at 8 knots | 10+ mi | none | 3,282 ft | 13:53 UTC |
| ABI Abilene, TX | 1327 nm out, 8 nm west of the line, tower | VFR | from the south (170°) at 15 knots | 10+ mi | none | 1,790 ft | 13:52 UTC |
| GRK Fort Hood (Killeen), TX | destination | VFR Sky: scattered clouds at 1,300 feet, overcast at 16,000 feet | from the southeast (140°) at 8 knots | 9 mi | 16,000 ft | 1,015 ft | 8:55 am CDT (13:55 UTC) |
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 GRK when you get there the forecast at the estimated arrival, 7:24 pm CDT (00:24 UTC)
Wind from the south-southeast at 9 knots, scattered clouds at 1,500 feet, a broken layer at 15,000 feet VFR
The whole forecast for GRK
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southeast at 9 knots, scattered clouds at 1,500 feet, a broken layer at 15,000 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 1,500 feet
- Changing between Mon 11:00 am CDT (16:00 UTC) and 12:00 pm CDT (17:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 5,000 feet
- Changing between Mon 5:00 pm CDT (22:00 UTC) and 6:00 pm CDT (23:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 10,000 feet
- Changing between Mon 10:00 pm CDT (03:00 UTC) and 11:00 pm CDT (04:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 1,000 feet
The forecast for PDX, the departure
- From Mon 5:00 am PDT (12:00 UTC): wind from the west-northwest at 3 knots, 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 PDX 6:28 pm PDT (01:28 UTC), at GRK 7:02 pm CDT (00:02 UTC) (civil twilight ends 7:26 pm CDT (00:26 UTC)). At 120 knots the arrival at GRK is after sunset there (7:03 pm CDT (00:03 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: Portland International, Robert Gray Army Airfield.
