March Arb Airport to Robert Gray Army Airfield RIV → GRK
997 nautical miles (1,147 statute miles) east on a straight line, true course 094°, about 080° magnetic at the departure end (variation 14E). At 120 knots that is 6 h 09 min at the quickest height in today's winds (34,000 ft, a 42-knot tailwind), arriving about 2:19 pm CDT (19:19 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: 10 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
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 449 nm of the route.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 269 to 359 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, 389 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 RIV.
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 9 forecast points nearest it (ONT, BLH, PHX, TUS, ELP, ROW, INK, ABI, SAT). 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 17 kt | −6 kt | 18 °C | 126 kt | 7 h 55 min | 4:05 pm CDT (21:05 UTC) |
| 7,500 ft | 210° at 19 kt | −6 kt | 12 °C | 126 kt | 7 h 55 min | 4:05 pm CDT (21:05 UTC) |
| 9,500 ft | 210° at 22 kt | −7 kt | 9 °C | 127 kt | 7 h 51 min | 4:01 pm CDT (21:01 UTC) |
| 11,500 ft | 210° at 25 kt | −9 kt | 5 °C | 129 kt | 7 h 44 min | 3:54 pm CDT (20:54 UTC) |
| 13,500 ft | 210° at 29 kt | −13 kt | 2 °C | 133 kt | 7 h 30 min | 3:40 pm CDT (20:40 UTC) |
| 15,500 ft | 220° at 34 kt | −18 kt | -2 °C | 138 kt | 7 h 13 min | 3:23 pm CDT (20:23 UTC) |
| 17,500 ft | 220° at 39 kt | −23 kt | -6 °C | 143 kt | 6 h 58 min | 3:08 pm CDT (20:08 UTC) |
| 18,000 ft FL180 | 220° at 41 kt | −24 kt | -7 °C | 144 kt | 6 h 55 min | 3:05 pm CDT (20:05 UTC) |
| 24,000 ft FL240 | 230° at 52 kt | −32 kt | -17 °C | 152 kt | 6 h 34 min | 2:44 pm CDT (19:44 UTC) |
| 30,000 ft FL300 | 220° at 61 kt | −36 kt | -28 °C | 156 kt | 6 h 23 min | 2:33 pm CDT (19:33 UTC) |
| 34,000 ft FL340 | 230° at 61 kt | −42 kt | -37 °C | 162 kt | 6 h 09 min | 2:19 pm CDT (19:19 UTC) |
| 39,000 ft FL390 | 230° at 56 kt | −38 kt | -49 °C | 158 kt | 6 h 19 min | 2:29 pm CDT (19:29 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ONT | used from 0 nm out; 44 nm from the line | 250/11 | 200/20 4° | 210/27 3° | 220/26 -4° | 240/32 -13° | 220/52 -21° | 220/67 -30° | 220/72 -37° | 220/65 -46° |
| BLH | used from 50 nm out; 53 nm from the line | 240/19 | 210/20 10° | 200/27 4° | 210/34 -2° | 220/59 -10° | 220/67 -20° | 220/75 -29° | 230/78 -38° | 220/90 -47° |
| PHX | used from 199 nm out; 39 nm from the line | 190/15 | 210/25 12° | 200/34 4° | 200/34 2° | 220/58 -9° | 220/75 -19° | 220/91 -28° | 220/100 -35° | 220/95 -47° |
| TUS | used from 349 nm out; 85 nm from the line | 200/12 13° | 200/34 7° | 210/41 4° | 230/53 -7° | 220/69 -19° | 220/84 -27° | 220/88 -36° | 220/83 -48° | |
| ELP | used from 449 nm out; 101 nm from the line | 300/8 | 210/14 12° | 210/28 6° | 230/47 -6° | 230/56 -14° | 220/58 -27° | 230/60 -38° | 230/56 -50° | |
| ROW | used from 598 nm out; 54 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° | |
| INK | used from 648 nm out; 52 nm from the line | 220/17 21° | 230/12 14° | 210/13 7° | 220/29 -5° | 240/41 -14° | 230/43 -28° | 250/41 -38° | 250/33 -51° | |
| ABI | used from 798 nm out; 83 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° | |
| SAT | used from 947 nm out; 99 nm from the line | 160/18 | 180/22 17° | 190/16 14° | 210/16 9° | 220/16 -5° | 200/11 -14° | 250/8 -29° | 330/8 -40° | 020/26 -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 |
|---|---|---|---|---|---|---|---|
| RIV Riverside, CA | departure | no report just now | 1,536 ft | ||||
| PSP Palm Springs, CA | 40 nm out, 2 nm west of the line, tower | no report just now | 476 ft | ||||
| BLH Blythe, CA | 130 nm out, 5 nm southwest of the line | no report just now | 399 ft | ||||
| PHX Phoenix, AZ | 259 nm out, 4 nm east of the line, tower | no report just now | 1,134 ft | ||||
| SAD Safford, AZ | 389 nm out, 18 nm south of the line | no report just now | 3,178 ft | ||||
| CFT Clifton/Morenci, AZ | 409 nm out, 9 nm south of the line | no report just now | 3,797 ft | ||||
| ALM Alamogordo, NM | 568 nm out, 12 nm north of the line | no report just now | 4,199 ft | ||||
| CNM Carlsbad, NM | 658 nm out, 2 nm southeast of the line | no report just now | 3,294 ft | ||||
| MAF Midland, TX | 768 nm out, 2 nm southwest of the line, tower | no report just now | 2,872 ft | ||||
| SJT San Angelo, TX | 857 nm out, 17 nm south of the line, tower | no report just now | 1,918 ft | ||||
| LZZ Lampasas, TX | 977 nm out, 3 nm south of the line | no report just now | 1,214 ft | ||||
| GRK Fort Hood (Killeen), TX | destination | no report just now | 1,015 ft |
The highest airport on this list sits at 4,199 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, 2:19 pm CDT (19:19 UTC)
GRK has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 17 nm from the route, 568 nm along the route · security · starts tomorrow · ZAB
- 6/4240 SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 15 nm from the route, 867 nm along the route · security · until 1 November · ZFW
Daylight
Sunset at RIV 6:17 pm PDT (01:17 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: March Arb Airport, Robert Gray Army Airfield.