March Arb Airport to Valley International RIV → HRL
1,115 nautical miles (1,283 statute miles) east on a straight line, true course 109°, about 095° magnetic at the departure end (variation 14E). At 120 knots that is 8 h 05 min at the quickest height in today's winds (34,000 ft, a 18-knot tailwind), arriving about 2:29 pm CDT (19:29 UTC). Right now RIV is marginal VFR, wind from the south-southeast (150°) at 4 knots; HRL is VFR, wind from the south-southeast (150°) at 6 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: 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
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 110 nm of the route.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 40 nm of 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
- A333 descending, 20 nm northwest, 4:05 am PDT (11:05 UTC): overcast from 1,500 ft to 7,000 ft, remarks: during the descent runway 26R. At the departure end, 20 nm northwest of the line.
as filed, and in English
ONT UA /OV ONT080/TM 1105/FLUNKN/TP A333/SK OVC015 - TOP070/RM DURD RY26R
- Report
- a routine report filed through ONT
- Where
- ONT080
- Time
- 11:05 UTC
- Height
- height not given
- Aircraft
- A333
- Sky
- overcast from 1,500 ft, tops 7,000 ft
- Remarks
- during the descent runway 26R
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, MRF, DRT, LRD, BRO). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 190° at 16 kt | +5 kt | 115 kt | 9 h 42 min | 4:06 pm CDT (21:06 UTC) | |
| 5,500 ft | 200° at 13 kt | +2 kt | 13 °C | 118 kt | 9 h 27 min | 3:51 pm CDT (20:51 UTC) |
| 7,500 ft | 200° at 17 kt | +1 kt | 12 °C | 119 kt | 9 h 22 min | 3:46 pm CDT (20:46 UTC) |
| 9,500 ft | 200° at 21 kt | +1 kt | 10 °C | 119 kt | 9 h 22 min | 3:46 pm CDT (20:46 UTC) |
| 11,500 ft | 210° at 22 kt | −1 kt | 6 °C | 121 kt | 9 h 13 min | 3:37 pm CDT (20:37 UTC) |
| 13,500 ft | 210° at 26 kt | −5 kt | 3 °C | 125 kt | 8 h 55 min | 3:19 pm CDT (20:19 UTC) |
| 15,500 ft | 220° at 30 kt | −8 kt | -1 °C | 128 kt | 8 h 43 min | 3:07 pm CDT (20:07 UTC) |
| 17,500 ft | 220° at 34 kt | −12 kt | -5 °C | 132 kt | 8 h 27 min | 2:51 pm CDT (19:51 UTC) |
| 18,000 ft FL180 | 220° at 35 kt | −13 kt | -6 °C | 133 kt | 8 h 23 min | 2:47 pm CDT (19:47 UTC) |
| 24,000 ft FL240 | 220° at 42 kt | −15 kt | -16 °C | 135 kt | 8 h 16 min | 2:40 pm CDT (19:40 UTC) |
| 30,000 ft FL300 | 220° at 47 kt | −11 kt | -28 °C | 131 kt | 8 h 31 min | 2:55 pm CDT (19:55 UTC) |
| 34,000 ft FL340 | 230° at 45 kt | −18 kt | -38 °C | 138 kt | 8 h 05 min | 2:29 pm CDT (19:29 UTC) |
| 39,000 ft FL390 | 230° at 39 kt | −18 kt | -49 °C | 138 kt | 8 h 05 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; 45 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; 57 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; 74 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 249 nm out; 63 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 448 nm out; 123 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° | |
| MRF | used from 597 nm out; 103 nm from the line | 210/12 15° | 190/5 10° | 220/19 -4° | 240/30 -13° | 220/29 -28° | 240/24 -38° | 250/18 -51° | ||
| DRT | used from 797 nm out; 98 nm from the line | 160/26 | 180/14 17° | 200/18 15° | 200/20 9° | 210/21 -3° | 220/14 -13° | 210/17 -29° | 280/12 -39° | 320/20 -51° |
| LRD | used from 896 nm out; 75 nm from the line | 160/22 | 170/23 18° | 190/18 15° | 210/12 10° | 220/17 -4° | 200/11 -15° | 150/13 -29° | 060/8 -40° | 030/28 -51° |
| BRO | used from 1045 nm out; 66 nm from the line | 160/15 | 160/15 18° | 170/11 14° | 150/7 9° | L/V -4° | 170/6 -15° | 100/15 -29° | 100/14 -41° | 040/26 -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 | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 1,400 feet, overcast at 3,400 feet | from the south-southeast (150°) at 4 knots | 10+ mi | 1,400 ft | 1,536 ft | 3:59 am PDT (10:59 UTC) |
| PSP Palm Springs, CA | 40 nm out, 10 nm north of the line, tower | VFR Sky: a few clouds at 4,800 feet, a broken layer at 9,500 feet, a broken layer at 11,000 feet | from the west-northwest (300°) at 7 knots | 10+ mi | 9,500 ft | 476 ft | 10:53 UTC |
| NYL Yuma, AZ | 149 nm out, 24 nm south of the line, tower | VFR Sky: overcast at 6,500 feet | from the east-southeast (120°) at 4 knots | 10+ mi | 6,500 ft | 213 ft | 10:57 UTC |
| RYN Tucson, AZ | 319 nm out, 12 nm northeast of the line, tower | VFR Sky: a broken layer at 6,500 feet | calm | 10+ mi | 6,500 ft | 2,418 ft | 02:45 UTC |
| FHU Fort Huachuca Sierra Vista, AZ | 378 nm out, 5 nm southwest of the line, tower | VFR Sky: a broken layer at 4,100 feet, overcast at 4,900 feet | from the south (190°) at 10 knots | 10+ mi | 4,100 ft | 4,718 ft | 10:55 UTC |
| PRS Presidio, TX | 707 nm out, 17 nm north of the line | VFR | from the north (010°) at 5 knots | 10+ mi | none | 2,938 ft | 11:15 UTC |
| LRD Laredo, TX | 996 nm out, 23 nm north of the line, tower | marginal VFR Sky: a broken layer at 1,300 feet, a broken layer at 4,300 feet | from the southeast (130°) at 6 knots | 10+ mi | 1,300 ft | 508 ft | 11:06 UTC |
| MFE Mc Allen, TX | 1085 nm out, 18 nm south of the line, tower | VFR | from the east-southeast (120°) at 4 knots | 10+ mi | none | 107 ft | 10:59 UTC |
| HRL Harlingen, TX | destination | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 36 ft | 5:52 am CDT (10:52 UTC) |
The highest airport on this list sits at 4,718 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HRL when you get there the forecast at the estimated arrival, 2:29 pm CDT (19:29 UTC)
Wind from the south-southeast at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 7,000 feet VFR
The whole forecast for HRL
- From Mon 7:00 am CDT (12:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 1:00 pm CDT (18:00 UTC): wind from the south-southeast at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 7,000 feet
- From Mon 9:00 pm CDT (02:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for RIV, the departure
- From Sun 9:00 pm PDT (04:00 UTC): wind from the south-southeast at 10 knots, gusting to 15, showers nearby, a few clouds at 2,000 feet, a broken layer at 4,000 feet and more above
- Changing between Sun 10:00 pm PDT (05:00 UTC) and 11:00 pm PDT (06:00 UTC) to: wind from the south-southeast at 9 knots, light rain, scattered clouds at 1,000 feet, a broken layer at 2,000 feet and more above
- Changing between Mon 12:00 am PDT (07:00 UTC) and 1:00 am PDT (08:00 UTC) to: wind from the south-southeast at 9 knots, light rain, mist, scattered clouds at 700 feet, a broken layer at 2,000 feet and more above
- At times between Mon 1:00 am PDT (08:00 UTC) and 7:00 am PDT (14:00 UTC): wind from the south-southeast at 10 knots, gusting to 15, light rain, mist, a broken layer at 1,500 feet, overcast at 4,000 feet
- Changing between Mon 6:00 am PDT (13:00 UTC) and 7:00 am PDT (14:00 UTC) to: wind from the south-southeast at 6 knots, light rain, scattered clouds at 700 feet, a broken layer at 2,500 feet and more above
- Changing between Mon 10:00 am PDT (17:00 UTC) and 11:00 am PDT (18:00 UTC) to: wind from the south at 9 knots, showers nearby, a broken layer at 3,000 feet, overcast at 6,000 feet
- Changing between Mon 1:00 pm PDT (20:00 UTC) and 2:00 pm PDT (21:00 UTC) to: wind from the south at 10 knots, showers nearby, a broken layer at 4,000 feet, a broken layer at 6,000 feet
- At times between Mon 2:00 pm PDT (21:00 UTC) and 7:00 pm PDT (02:00 UTC): wind from the southwest at 12 knots, gusting to 20, light rain showers, a broken layer at 3,000 feet, a broken layer at 5,000 feet
- Changing between Mon 8:00 pm PDT (03:00 UTC) and 9:00 pm PDT (04:00 UTC) to: wind light and variable, a broken layer at 2,000 feet, overcast at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 20 nm from the route, 80 nm along the route · security · until 13 July · ZLA
- 6/2656 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 23 nm from the route, 139 nm along the route · security · until 2 January · ZLA
- 6/2657 Calexico, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 23 nm from the route, 139 nm along the route · security · until 2 January · ZLA
Daylight
Sunset at RIV 6:17 pm PDT (01:17 UTC), at HRL 7:04 pm CDT (00:04 UTC) (civil twilight ends 7:28 pm CDT (00:28 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, Valley International.