Joslin Fld/Magic Valley Regional to Robert Gray Army Airfield TWF → GRK
1,051 nautical miles (1,209 statute miles) southeast on a straight line, true course 125°, about 112° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 37 min at the quickest height in today's winds (34,000 ft, a 18-knot tailwind), arriving about 8:27 am CDT (13:27 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: 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 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 12:55 am MDT (06:55 UTC). Over the route from 456 to 674 nm out.
as issued
WSUS32 KKCI 120455 MKCC WST 120455 CONVECTIVE SIGMET 7C VALID UNTIL 0655Z TX OK CO NM FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB AREA TS MOV FROM 22040KT. TOPS TO FL340.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 307 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 10 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 337 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 159 to 644 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 178 to 446 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 337 to 496 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 466 to 605 nm out.
- AIRMET TANGO 3W: 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, 644 nm along 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 TWF.
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 02:00–09:00 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 9 forecast points nearest it (PIH, SLC, GJT, ALS, TCC, AMA, LBB, ABI, CLL). 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 | 200° at 24 kt | +8 kt | 17 °C | 112 kt | 9 h 23 min | 10:13 am CDT (15:13 UTC) |
| 7,500 ft | 210° at 25 kt | +4 kt | 13 °C | 116 kt | 9 h 04 min | 9:54 am CDT (14:54 UTC) |
| 9,500 ft | 220° at 23 kt | 0 | 9 °C | 120 kt | 8 h 46 min | 9:36 am CDT (14:36 UTC) |
| 11,500 ft | 230° at 26 kt | −5 kt | 5 °C | 125 kt | 8 h 24 min | 9:14 am CDT (14:14 UTC) |
| 13,500 ft | 230° at 29 kt | −4 kt | 1 °C | 124 kt | 8 h 29 min | 9:19 am CDT (14:19 UTC) |
| 15,500 ft | 220° at 32 kt | −2 kt | -4 °C | 122 kt | 8 h 37 min | 9:27 am CDT (14:27 UTC) |
| 17,500 ft | 220° at 35 kt | −1 kt | -7 °C | 121 kt | 8 h 41 min | 9:31 am CDT (14:31 UTC) |
| 18,000 ft FL180 | 220° at 36 kt | 0 | -8 °C | 120 kt | 8 h 46 min | 9:36 am CDT (14:36 UTC) |
| 24,000 ft FL240 | 220° at 47 kt | −1 kt | -20 °C | 121 kt | 8 h 41 min | 9:31 am CDT (14:31 UTC) |
| 30,000 ft FL300 | 230° at 59 kt | −13 kt | -28 °C | 133 kt | 7 h 54 min | 8:44 am CDT (13:44 UTC) |
| 34,000 ft FL340 | 240° at 57 kt | −18 kt | -35 °C | 138 kt | 7 h 37 min | 8:27 am CDT (13:27 UTC) |
| 39,000 ft FL390 | 240° at 48 kt | −17 kt | -46 °C | 137 kt | 7 h 40 min | 8:30 am CDT (13:30 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PIH | used from 0 nm out; 75 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| SLC | used from 99 nm out; 31 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| GJT | used from 248 nm out; 65 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -45° | ||
| ALS | used from 397 nm out; 78 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| TCC | used from 595 nm out; 55 nm from the line | 210/42 | 230/33 14° | 230/32 6° | 220/35 -6° | 230/49 -19° | 240/72 -27° | 250/62 -36° | 250/52 -48° | |
| AMA | used from 694 nm out; 46 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| LBB | used from 744 nm out; 41 nm from the line | 200/36 18° | 220/19 15° | 240/20 8° | 230/24 -4° | 240/37 -16° | 250/57 -28° | 250/51 -38° | 270/47 -50° | |
| ABI | used from 843 nm out; 60 nm from the line | 200/31 17° | 210/21 15° | 240/15 9° | 250/14 -4° | 250/24 -14° | 250/36 -28° | 270/35 -38° | 290/41 -50° | |
| CLL | used from 1041 nm out; 85 nm from the line | 170/22 | 170/26 18° | 200/15 14° | 240/13 8° | 240/15 -5° | 260/17 -13° | 290/27 -29° | 290/22 -40° | 320/30 -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 |
|---|---|---|---|---|---|---|---|
| TWF Twin Falls, ID | departure | no report just now | 4,153 ft | ||||
| BYI Burley, ID | 20 nm out, 22 nm northeast of the line | no report just now | 4,153 ft | ||||
| OGD Ogden, UT | 139 nm out, 5 nm north of the line, tower | no report just now | 4,472 ft | ||||
| GJT Grand Junction, CO | 337 nm out, 3 nm northeast of the line, tower | no report just now | 4,861 ft | ||||
| MVI Monte Vista, CO | 486 nm out, 6 nm east of the line | no report just now | 7,611 ft | ||||
| RTN Raton, NM | 575 nm out, 18 nm northeast of the line | no report just now | 6,352 ft | ||||
| HRX Hereford, TX | 734 nm out, 7 nm north of the line | no report just now | 3,787 ft | ||||
| PVW Plainview, TX | 783 nm out, 5 nm west of the line | no report just now | 3,374 ft | ||||
| ABI Abilene, TX | 922 nm out, 11 nm south of the line, tower | no report just now | 1,790 ft | ||||
| MKN Comanche, TX | 991 nm out, 9 nm north of the line | no report just now | 1,386 ft | ||||
| GRK Fort Hood (Killeen), TX | destination | no report just now | 1,015 ft |
The highest airport on this list sits at 7,611 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, 8:27 am CDT (13:27 UTC)
GRK 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 TWF 7:00 pm MDT (01:00 UTC), at GRK 7:02 pm CDT (00:02 UTC) (civil twilight ends 7:26 pm CDT (00:26 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: Joslin Fld/Magic Valley Regional, Robert Gray Army Airfield.