MC Clellan Airfield to Robert Gray Army Airfield MCC → GRK
1,243 nautical miles (1,431 statute miles) east on a straight line, true course 104°, about 087° magnetic at the departure end (variation 17E). At 120 knots that is 8 h 11 min at the quickest height in today's winds (34,000 ft, a 32-knot tailwind), arriving about 12:53 pm CDT (17:53 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 W18W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 3:55 am PDT (10:55 UTC). Over the route from 328 to 388 nm out.
as issued
WSUS33 KKCI 120855 MKCW WST 120855 CONVECTIVE SIGMET 18W VALID UNTIL 1055Z AZ UT NV FROM 20WNW BVL-30N BCE-60SSW BCE-50NNE LAS-60NNW ELY-20WNW BVL AREA TS MOV FROM 24020KT. TOPS TO FL300.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 109 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 209 to 487 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 318 to 537 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 338 to 378 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 428 to 467 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 438 to 786 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 537 to 666 nm out.
- 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 1004 to 1084 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 MCC.
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 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 (SAC, RNO, BIH, LAS, BCE, PRC, FMN, ABQ, ROW, 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 | 210° at 15 kt | −2 kt | 16 °C | 122 kt | 10 h 11 min | 2:53 pm CDT (19:53 UTC) |
| 7,500 ft | 220° at 15 kt | −4 kt | 11 °C | 124 kt | 10 h 01 min | 2:43 pm CDT (19:43 UTC) |
| 9,500 ft | 220° at 16 kt | −5 kt | 7 °C | 125 kt | 9 h 57 min | 2:39 pm CDT (19:39 UTC) |
| 11,500 ft | 210° at 21 kt | −4 kt | 2 °C | 124 kt | 10 h 01 min | 2:43 pm CDT (19:43 UTC) |
| 13,500 ft | 220° at 25 kt | −6 kt | -2 °C | 126 kt | 9 h 52 min | 2:34 pm CDT (19:34 UTC) |
| 15,500 ft | 220° at 29 kt | −9 kt | -5 °C | 129 kt | 9 h 38 min | 2:20 pm CDT (19:20 UTC) |
| 17,500 ft | 220° at 33 kt | −12 kt | -9 °C | 132 kt | 9 h 25 min | 2:07 pm CDT (19:07 UTC) |
| 18,000 ft FL180 | 220° at 34 kt | −12 kt | -10 °C | 132 kt | 9 h 25 min | 2:07 pm CDT (19:07 UTC) |
| 24,000 ft FL240 | 240° at 44 kt | −24 kt | -20 °C | 144 kt | 8 h 38 min | 1:20 pm CDT (18:20 UTC) |
| 30,000 ft FL300 | 230° at 57 kt | −29 kt | -29 °C | 149 kt | 8 h 21 min | 1:03 pm CDT (18:03 UTC) |
| 34,000 ft FL340 | 230° at 58 kt | −32 kt | -37 °C | 152 kt | 8 h 11 min | 12:53 pm CDT (17:53 UTC) |
| 39,000 ft FL390 | 230° at 53 kt | −29 kt | -47 °C | 149 kt | 8 h 21 min | 1:03 pm CDT (18:03 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAC | used from 0 nm out; 29 nm from the line | L/V | L/V 4° | 340/9 -4° | 340/22 -8° | 360/71 -12° | 360/82 -23° | 350/58 -37° | 310/30 -40° | 270/25 -44° |
| RNO | used from 50 nm out; 69 nm from the line | 010/6 | 270/12 -3° | 220/26 -10° | 280/13 -19° | 350/44 -24° | 320/30 -32° | 260/22 -36° | 240/24 -42° | |
| BIH | used from 99 nm out; 51 nm from the line | L/V | 020/6 0° | 140/7 -7° | 210/31 -16° | 230/34 -26° | 220/43 -30° | 220/52 -36° | 220/46 -43° | |
| LAS | used from 249 nm out; 86 nm from the line | 210/20 8° | 210/29 4° | 200/32 -3° | 200/51 -15° | 210/64 -21° | 220/70 -30° | 220/66 -38° | 220/55 -44° | |
| BCE | used from 398 nm out; 75 nm from the line | 200/32 -2° | 210/57 -15° | 220/71 -22° | 220/69 -30° | 220/64 -38° | 220/67 -44° | |||
| PRC | used from 497 nm out; 110 nm from the line | 200/37 6° | 200/35 0° | 220/60 -11° | 220/71 -20° | 220/88 -29° | 220/98 -35° | 220/94 -45° | ||
| FMN | used from 547 nm out; 105 nm from the line | 220/16 6° | 220/39 1° | 220/50 -10° | 230/67 -23° | 230/94 -29° | 230/102 -35° | 230/90 -46° | ||
| ABQ | used from 646 nm out; 75 nm from the line | 220/19 9° | 220/35 3° | 230/50 -8° | 240/64 -19° | 230/83 -26° | 230/85 -36° | 230/80 -48° | ||
| ROW | used from 796 nm out; 65 nm from the line | 230/12 | 230/17 13° | 220/30 7° | 230/41 -5° | 240/52 -17° | 230/66 -28° | 240/63 -38° | 240/60 -50° | |
| LBB | used from 945 nm out; 52 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 1044 nm out; 60 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 |
|---|---|---|---|---|---|---|---|
| MCC Sacramento, CA | departure | no report just now | 76 ft | ||||
| RIU Rancho Murieta, CA | 20 nm out, 8 nm southwest of the line | no report just now | 144 ft | ||||
| TPH Tonopah, NV | 209 nm out, 20 nm north of the line | no report just now | 5,430 ft | ||||
| SGU St George, UT | 388 nm out, 14 nm north of the line | no report just now | 2,883 ft | ||||
| RQE Window Rock, AZ | 617 nm out, 12 nm north of the line | no report just now | 6,742 ft | ||||
| BRG Belen, NM | 736 nm out, 5 nm southeast of the line | no report just now | 5,199 ft | ||||
| ABQ Albuquerque, NM | 746 nm out, 24 nm north of the line, tower | no report just now | 5,354 ft | ||||
| BFE Brownfield, TX | 985 nm out, 13 nm northeast of the line | no report just now | 3,264 ft | ||||
| LUV Lamesa, TX | 1014 nm out, 5 nm southwest of the line | no report just now | 2,998 ft | ||||
| COM Coleman, TX | 1154 nm out, 5 nm north of the line | no report just now | 1,696 ft | ||||
| GRK Fort Hood (Killeen), TX | destination | no report just now | 1,015 ft |
The highest airport on this list sits at 6,742 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, 12:53 pm CDT (17:53 UTC)
GRK has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 18 nm from the route, at the departure end · security · until 1 November · ZOA
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 7 nm from the route, 806 nm along the route · security · starts tomorrow · ZAB
Daylight
Sunset at MCC 6:30 pm PDT (01:30 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: MC Clellan Airfield, Robert Gray Army Airfield.