John Wayne/Orange County to Boise Air Trml/Gowen Field SNA → BOI
599 nautical miles (689 statute miles) north on a straight line, true course 007°, about 355° magnetic at the departure end (variation 12E). At 120 knots that is 3 h 31 min at the quickest height in today's winds (30,000 ft, a 50-knot tailwind), arriving about 2:48 am MDT (08:48 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: 1,026 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 W14W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 11:55 pm PDT (06:55 UTC). Over the route from 269 to 399 nm out.
as issued
WSUS33 KKCI 120455 MKCW WST 120455 CONVECTIVE SIGMET 14W VALID UNTIL 0655Z NV FROM 40NW BVL-20WNW ELY-20SSE OAL-40WNW OAL-50NE BAM-40NW BVL AREA TS MOV FROM 24020KT. TOPS TO FL280.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 10 to 200 nm out.
- AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 170 nm along the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 210 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 269 to 399 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 299 to 459 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 120 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 SNA.
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 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 5 forecast points nearest it (ONT, WJF, BIH, BAM, BOI). 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 | 210° at 8 kt | −8 kt | 4 °C | 128 kt | 4 h 41 min | 3:58 am MDT (09:58 UTC) |
| 6,500 ft | 210° at 10 kt | −9 kt | 4 °C | 129 kt | 4 h 39 min | 3:56 am MDT (09:56 UTC) |
| 8,500 ft | 240° at 8 kt | −6 kt | 1 °C | 126 kt | 4 h 45 min | 4:02 am MDT (10:02 UTC) |
| 10,500 ft | 230° at 13 kt | −10 kt | -3 °C | 130 kt | 4 h 36 min | 3:53 am MDT (09:53 UTC) |
| 12,500 ft | 220° at 18 kt | −15 kt | -6 °C | 135 kt | 4 h 26 min | 3:43 am MDT (09:43 UTC) |
| 14,500 ft | 210° at 25 kt | −23 kt | -10 °C | 143 kt | 4 h 11 min | 3:28 am MDT (09:28 UTC) |
| 16,500 ft | 210° at 32 kt | −30 kt | -14 °C | 150 kt | 4 h | 3:17 am MDT (09:17 UTC) |
| 18,000 ft FL180 | 200° at 38 kt | −36 kt | -16 °C | 156 kt | 3 h 50 min | 3:07 am MDT (09:07 UTC) |
| 24,000 ft FL240 | 200° at 50 kt | −47 kt | -26 °C | 167 kt | 3 h 35 min | 2:52 am MDT (08:52 UTC) |
| 30,000 ft FL300 | 220° at 59 kt | −50 kt | -29 °C | 170 kt | 3 h 31 min | 2:48 am MDT (08:48 UTC) |
| 34,000 ft FL340 | 220° at 56 kt | −47 kt | -34 °C | 167 kt | 3 h 35 min | 2:52 am MDT (08:52 UTC) |
| 39,000 ft FL390 | 220° at 50 kt | −41 kt | -42 °C | 161 kt | 3 h 43 min | 3:00 am MDT (09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ONT | used from 0 nm out; 10 nm from the line | 190/8 | 190/19 6° | 210/23 4° | 210/29 -3° | 210/47 -13° | 210/49 -19° | 220/47 -30° | 220/50 -36° | 220/55 -43° |
| WJF | used from 50 nm out; 28 nm from the line | 200/28 6° | 210/28 3° | 210/29 -4° | 210/28 -14° | 220/41 -20° | 220/47 -29° | 220/46 -37° | 220/53 -44° | |
| BIH | used from 150 nm out; 66 nm from the line | L/V | 240/7 1° | 190/13 -3° | 200/26 -16° | 210/43 -26° | 220/54 -28° | 220/51 -35° | 220/47 -43° | |
| BAM | used from 299 nm out; 94 nm from the line | 310/7 0° | 270/19 -7° | 200/38 -17° | 190/49 -28° | 220/69 -29° | 220/63 -33° | 230/48 -41° | ||
| BOI | used from 499 nm out; 75 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° |
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 |
|---|---|---|---|---|---|---|---|
| SNA Santa Ana, CA | departure | no report just now | 55 ft | ||||
| POC La Verne, CA | 30 nm out, 5 nm south of the line, tower | no report just now | 1,013 ft | ||||
| VCV Victorville, CA | 60 nm out, 17 nm east of the line, tower | no report just now | 2,885 ft | ||||
| IYK Inyokern, CA | 120 nm out, 12 nm west of the line | no report just now | 2,457 ft | ||||
| TPH Tonopah, NV | 269 nm out, 6 nm southeast of the line | no report just now | 5,430 ft | ||||
| TMT Austin, NV | 349 nm out, 11 nm west of the line | no report just now | 5,735 ft | ||||
| BAM Battle Mountain, NV | 419 nm out, 5 nm west of the line | no report just now | 4,536 ft | ||||
| BOI Boise, ID | destination | no report just now | 2,871 ft |
The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOI when you get there the forecast at the estimated arrival, 2:48 am MDT (08:48 UTC)
BOI has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 2 nm from the route, at the departure end · security · ZLA
Daylight
Sunset at SNA 6:21 pm PDT (01:21 UTC), at BOI 7:06 pm MDT (01:06 UTC) (civil twilight ends 7:35 pm MDT (01:35 UTC)). At 120 knots the arrival at BOI is before sunrise there (7:55 am MDT (13:55 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: John Wayne/Orange County, Boise Air Trml/Gowen Field.