Robert Gray Army Airfield to March Arb Airport GRK → RIV
997 nautical miles (1,147 statute miles) west on a straight line, true course 285°, about 281° magnetic at the departure end (variation 4E). At 120 knots that is 8 h 18 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 3:24 am PDT (10:24 UTC), after sunset at the destination. 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
- SIGMET 6W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm CDT (03:55 UTC). Near the route, 379 nm along the route.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 6W VALID UNTIL 0355Z CO NM FROM 50SSW DEN-30NNE TBE-50SSW CME-50E SJN-20NE DVC-50SSW DEN AREA TS MOV FROM 23040KT. TOPS TO FL340.
- SIGMET 7W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 10:55 pm CDT (03:55 UTC). Over the route from 538 to 658 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 7W VALID UNTIL 0355Z NM AZ FROM 30NW SJN-30W TCS-60SE SSO-50SE TUS-70S INW-30NW SJN DMSHG AREA TS MOV FROM 23040KT. TOPS TO FL310.
- SIGMET 9W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 10:55 pm CDT (03:55 UTC). Near the route, 728 nm along the route.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 9W VALID UNTIL 0355Z AZ FROM 20S TBC-30S INW-10E PHX-60SW DRK-30WNW DRK-20S TBC DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 479 to 668 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 489 to 528 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 499 to 628 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 728 to 738 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 120 nm of the route.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 50 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Near the route, 957 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 GRK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 14,000 ft, 26 nm north, 7:13 pm CDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. At the destination end, 26 nm north of the line.
as filed, and in English
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
- Report
- a routine report filed through ONT
- Where
- 34 nm northeast (053°) of ONT
- Time
- 00:13 UTC
- Height
- at 14,000 ft
- Aircraft
- B38M
- Temperature
- 8 °C
- Turbulence
- moderate turbulence
- Icing
- light rime ice at 19,000 ft at 17,000 ft
- A320 at 14,000 ft, 50 nm north, 7:39 pm CDT (00:39 UTC): light to moderate turbulence, remarks: zab fdcs. 728 nm along the route, 50 nm north of the line.
as filed, and in English
PHX UA /OV PXR005050/TM 0039/FL140/TP A320/TB LGT-MOD/RM ZAB FDCS
- Report
- a routine report filed through PHX
- Where
- 50 nm north (005°) of PXR
- Time
- 00:39 UTC
- Height
- at 14,000 ft
- Aircraft
- A320
- Turbulence
- light to moderate
- Remarks
- zab fdcs
- B738 at 17,000 ft, 28 nm north, 6:54 pm CDT (23:54 UTC): light rime icing, 9 °C, remarks: during the descent. 748 nm along the route, 28 nm north of the line.
as filed, and in English
PHX UA /OV PXR330030/TM 2354/FL170/TP B738/TA 09/IC LGT RIME/RM DURD
- Report
- a routine report filed through PHX
- Where
- 30 nm northwest (330°) of PXR
- Time
- 23:54 UTC
- Height
- at 17,000 ft
- Aircraft
- B738
- Temperature
- 9 °C
- Icing
- light rime
- Remarks
- during the descent
- CRJ7 at 15,000 ft, 15 nm southwest, 8:55 pm CDT (01:55 UTC): light rime icing, -3 °C, remarks: during the descent at 15,000 ft at 13,500 ft. 768 nm along the route, 15 nm southwest of the line.
as filed, and in English
PHX UA /OV GEELA/TM 0155/FL150/TP CRJ7/TA -3/IC LT RIME/RM DURD 150 135
- Report
- a routine report filed through PHX
- Where
- geela
- Time
- 01:55 UTC
- Height
- at 15,000 ft
- Aircraft
- CRJ7
- Temperature
- -3
- Icing
- lt rime
- Remarks
- during the descent at 15,000 ft at 13,500 ft
- E170 at 3,500 ft, 45 nm south, 8:59 pm CDT (01:59 UTC): remarks: B035. At the destination end, 45 nm south of the line.
as filed, and in English
CRQ UA /OV CRQ/TM 0159/FL035/TP E170/RM B035
- Report
- a routine report filed through CRQ
- Where
- over CRQ
- Time
- 01:59 UTC
- Height
- at 3,500 ft
- Aircraft
- E170
- Remarks
- B035
- SLG4 at 3,000 ft, 35 nm west, 8:33 pm CDT (01:33 UTC): scattered clouds above 4,000 ft. At the destination end, 35 nm west of the line.
as filed, and in English
EMT UA /OV EMT070006/TM 0133/FL030/TP SLG4/SK SCT040
- Report
- a routine report filed through EMT
- Where
- 6 nm east (070°) of EMT
- Time
- 01:33 UTC
- Height
- at 3,000 ft
- Aircraft
- SLG4
- Sky
- scattered clouds from 4,000 ft
- B737 at 6,400 ft, 45 nm west, 8:30 pm CDT (01:30 UTC): a broken layer from 3,300 ft to 6,400 ft. At the destination end, 45 nm west of the line.
as filed, and in English
LGB UA /OV LGB/TM 0130/FL064/TP B737/SK BKN033-TOP064
- Report
- a routine report filed through LGB
- Where
- over LGB
- Time
- 01:30 UTC
- Height
- at 6,400 ft
- Aircraft
- B737
- Sky
- a broken layer from 3,300 ft, tops 6,400 ft
- A21N at 2,000 ft, 29 nm west, 8:06 pm CDT (01:06 UTC): remarks: ils 25L haze below the ceiling. At the destination end, 29 nm west of the line.
as filed, and in English
LAX UA /OV LAX070030/TM 0106/FL020/TP A21N/SK TOPS068 BASES040/RM ILS 25L - HZ BELOW THE CEILING
- Report
- a routine report filed through LAX
- Where
- 30 nm east (070°) of LAX
- Time
- 01:06 UTC
- Height
- at 2,000 ft
- Aircraft
- A21N
- Sky
- TOPS068 BASES040
- Remarks
- ils 25L haze below the ceiling
- A20N at 5,300 ft, 33 nm west, 8:00 pm CDT (01:00 UTC): a broken layer from 4,300 ft to 5,300 ft. At the destination end, 33 nm west of the line.
as filed, and in English
SNA UA /OV SNA/TM 0100/FL053/TP A20N/SK BKN043-TOP053
- Report
- a routine report filed through SNA
- Where
- over SNA
- Time
- 01:00 UTC
- Height
- at 5,300 ft
- Aircraft
- A20N
- Sky
- a broken layer from 4,300 ft, tops 5,300 ft
- E75S at 5,000 ft, 46 nm west, 7:00 pm CDT (00:00 UTC): a routine report with nothing remarked on. At the destination end, 46 nm west of the line.
as filed, and in English
LGB UA /OV LGB180003/TM 0000/FL050/TP E75S/SK OVC43-TOP050
- Report
- a routine report filed through LGB
- Where
- 3 nm south (180°) of LGB
- Time
- 00:00 UTC
- Height
- at 5,000 ft
- Aircraft
- E75S
- Sky
- OVC43-TOP050
- B739 at 3,400 ft, 49 nm west, 6:55 pm CDT (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 49 nm west of the line.
as filed, and in English
KLAX UA /OV 10 E LAX/TM 2355/FL034/TP B739/SK OVC054/RM BASES 035
- Report
- a routine report filed through KLAX
- Where
- 10 east lax
- Time
- 23:55 UTC
- Height
- at 3,400 ft
- Aircraft
- B739
- Sky
- overcast from 5,400 ft
- Remarks
- bases 3,500 ft
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 9 forecast points nearest it (SAT, ABI, INK, ROW, ELP, TUS, PHX, BLH, ONT). 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 | 190° at 19 kt | 0 | 18 °C | 120 kt | 8 h 18 min | 3:24 am PDT (10:24 UTC) |
| 6,500 ft | 190° at 20 kt | +1 kt | 14 °C | 119 kt | 8 h 23 min | 3:29 am PDT (10:29 UTC) |
| 8,500 ft | 200° at 20 kt | +5 kt | 10 °C | 115 kt | 8 h 40 min | 3:46 am PDT (10:46 UTC) |
| 10,500 ft | 210° at 23 kt | +9 kt | 7 °C | 111 kt | 8 h 59 min | 4:05 am PDT (11:05 UTC) |
| 12,500 ft | 220° at 27 kt | +13 kt | 3 °C | 107 kt | 9 h 19 min | 4:25 am PDT (11:25 UTC) |
| 14,500 ft | 220° at 31 kt | +16 kt | 0 °C | 104 kt | 9 h 35 min | 4:41 am PDT (11:41 UTC) |
| 16,500 ft | 220° at 34 kt | +18 kt | -4 °C | 102 kt | 9 h 46 min | 4:52 am PDT (11:52 UTC) |
| 18,000 ft FL180 | 220° at 37 kt | +20 kt | -7 °C | 100 kt | 9 h 58 min | 5:04 am PDT (12:04 UTC) |
| 24,000 ft FL240 | 230° at 47 kt | +31 kt | -17 °C | 89 kt | 11 h 12 min | 6:18 am PDT (13:18 UTC) |
| 30,000 ft FL300 | 230° at 56 kt | +34 kt | -27 °C | 86 kt | 11 h 36 min | 6:42 am PDT (13:42 UTC) |
| 34,000 ft FL340 | 240° at 57 kt | +42 kt | -37 °C | 78 kt | 12 h 47 min | 7:53 am PDT (14:53 UTC) |
| 39,000 ft FL390 | 240° at 50 kt | +42 kt | -48 °C | 78 kt | 12 h 47 min | 7:53 am PDT (14:53 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAT | used from 0 nm out; 99 nm from the line | 130/22 | 140/24 18° | 170/19 13° | 190/13 7° | 240/15 -4° | 220/14 -13° | 270/11 -28° | 280/10 -40° | 310/18 -51° |
| ABI | used from 50 nm out; 66 nm from the line | 180/26 17° | 220/18 12° | 230/25 8° | 230/28 -5° | 240/29 -14° | 250/35 -28° | 270/37 -39° | 280/37 -51° | |
| INK | used from 199 nm out; 58 nm from the line | 160/27 20° | 190/18 13° | 240/19 7° | 250/23 -4° | 250/33 -15° | 230/45 -28° | 250/45 -39° | 270/49 -50° | |
| ROW | used from 349 nm out; 54 nm from the line | 180/23 | 190/24 15° | 210/27 7° | 230/35 -6° | 240/53 -17° | 240/62 -27° | 250/64 -38° | 260/60 -50° | |
| ELP | used from 399 nm out; 54 nm from the line | 200/15 | 200/16 15° | 200/17 6° | 220/40 -6° | 240/53 -16° | 230/62 -27° | 240/63 -38° | 250/59 -49° | |
| TUS | used from 548 nm out; 120 nm from the line | 220/17 15° | 210/32 7° | 210/43 5° | 210/49 -7° | 220/64 -18° | 220/83 -26° | 230/81 -36° | 230/72 -48° | |
| PHX | used from 648 nm out; 60 nm from the line | 210/19 | 210/20 14° | 200/20 6° | 210/40 1° | 220/58 -8° | 220/68 -20° | 220/82 -26° | 230/83 -34° | 230/69 -46° |
| BLH | used from 798 nm out; 47 nm from the line | 230/22 | 210/24 11° | 230/23 5° | 230/26 0° | 220/38 -10° | 230/52 -19° | 220/58 -28° | 220/69 -34° | 220/59 -45° |
| ONT | used from 947 nm out; 44 nm from the line | 230/11 | 200/17 6° | 230/27 4° | 230/32 -2° | 210/39 -12° | 220/51 -20° | 220/48 -29° | 210/51 -34° | 210/52 -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 | ||||
| LZZ Lampasas, TX | 20 nm out, 3 nm south of the line | no report just now | 1,214 ft | ||||
| SJT San Angelo, TX | 140 nm out, 17 nm south of the line, tower | no report just now | 1,918 ft | ||||
| MAF Midland, TX | 229 nm out, 2 nm southwest of the line, tower | no report just now | 2,872 ft | ||||
| CNM Carlsbad, NM | 339 nm out, 2 nm southeast of the line | no report just now | 3,294 ft | ||||
| ALM Alamogordo, NM | 429 nm out, 12 nm north of the line | no report just now | 4,199 ft | ||||
| CFT Clifton/Morenci, AZ | 588 nm out, 9 nm south of the line | no report just now | 3,797 ft | ||||
| SAD Safford, AZ | 608 nm out, 18 nm south of the line | no report just now | 3,178 ft | ||||
| PHX Phoenix, AZ | 738 nm out, 4 nm east of the line, tower | no report just now | 1,134 ft | ||||
| BLH Blythe, CA | 867 nm out, 5 nm southwest of the line | no report just now | 399 ft | ||||
| PSP Palm Springs, CA | 957 nm out, 2 nm west of the line, tower | no report just now | 476 ft | ||||
| RIV Riverside, CA | destination | no report just now | 1,536 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 RIV when you get there the forecast at the estimated arrival, 3:24 am PDT (10:24 UTC)
RIV has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/4240 SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 15 nm from the route, 130 nm along the route · security · until 1 November · ZFW
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 17 nm from the route, 429 nm along the route · security · starts tomorrow · ZAB
- 6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 7 nm from the route, 947 nm along the route · security · until 12 October · ZLA
Daylight
Sunset at GRK 7:03 pm CDT (00:03 UTC), at RIV 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:44 pm PDT (01:44 UTC)). At 120 knots the arrival at RIV is before sunrise there (6:51 am PDT (13:51 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, March Arb Airport.