Lewiston/Nez Perce County to San Diego International LWS → SAN
819 nautical miles (943 statute miles) south on a straight line, true course 181°, about 166° magnetic at the departure end (variation 15E). At 120 knots that is 7 h 04 min at the quickest height in today's winds (7,500 ft, a 4-knot headwind), arriving about 3:32 am PDT (10:32 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 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 W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 9:55 pm PDT (04:55 UTC). Over the route from 380 to 509 nm out.
as issued
WSUS33 KKCI 120255 MKCW WST 120255 CONVECTIVE SIGMET 12W VALID UNTIL 0455Z NV FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF AREA TS MOV FROM 24020KT. TOPS TO FL310.
- AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the first 80 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Near the route, at the departure end.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 479 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 230 to 479 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 459 to 789 nm out.
- AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 589 to 609 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 LWS.
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 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 7 forecast points nearest it (LWS, BOI, BAM, BIH, WJF, ONT, SAN). 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 | 200° at 7 kt | +6 kt | 4 °C | 114 kt | 7 h 11 min | 3:39 am PDT (10:39 UTC) |
| 7,500 ft | 230° at 6 kt | +4 kt | 1 °C | 116 kt | 7 h 04 min | 3:32 am PDT (10:32 UTC) |
| 9,500 ft | 230° at 8 kt | +5 kt | -1 °C | 115 kt | 7 h 07 min | 3:35 am PDT (10:35 UTC) |
| 11,500 ft | 220° at 14 kt | +10 kt | -5 °C | 110 kt | 7 h 27 min | 3:55 am PDT (10:55 UTC) |
| 13,500 ft | 210° at 21 kt | +18 kt | -9 °C | 102 kt | 8 h 02 min | 4:30 am PDT (11:30 UTC) |
| 15,500 ft | 210° at 29 kt | +26 kt | -12 °C | 94 kt | 8 h 43 min | 5:11 am PDT (12:11 UTC) |
| 17,500 ft | 200° at 37 kt | +34 kt | -16 °C | 86 kt | 9 h 31 min | 5:59 am PDT (12:59 UTC) |
| 18,000 ft FL180 | 200° at 39 kt | +36 kt | -17 °C | 84 kt | 9 h 45 min | 6:13 am PDT (13:13 UTC) |
| 24,000 ft FL240 | 200° at 49 kt | +46 kt | -26 °C | 74 kt | 11 h 04 min | 7:32 am PDT (14:32 UTC) |
| 30,000 ft FL300 | 220° at 55 kt | +44 kt | -30 °C | 76 kt | 10 h 47 min | 7:15 am PDT (14:15 UTC) |
| 34,000 ft FL340 | 220° at 52 kt | +40 kt | -34 °C | 80 kt | 10 h 14 min | 6:42 am PDT (13:42 UTC) |
| 39,000 ft FL390 | 220° at 47 kt | +35 kt | -41 °C | 85 kt | 9 h 38 min | 6:06 am PDT (13:06 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LWS | used from 0 nm out; 25 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| BOI | used from 100 nm out; 57 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° | |
| BAM | used from 250 nm out; 73 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° | ||
| BIH | used from 449 nm out; 88 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° | |
| WJF | used from 599 nm out; 91 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° | |
| ONT | used from 699 nm out; 26 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° |
| SAN | used from 799 nm out; 10 nm from the line | 200/11 | 200/23 7° | 210/27 4° | 210/31 -3° | 220/56 -10° | 220/56 -19° | 220/52 -30° | 220/64 -37° | 220/67 -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 |
|---|---|---|---|---|---|---|---|
| LWS Lewiston, ID | departure | no report just now | 1,442 ft | ||||
| JSY Joseph, OR | 60 nm out, 9 nm west of the line | no report just now | 4,126 ft | ||||
| ONO Ontario, OR | 140 nm out, 2 nm southeast of the line | no report just now | 2,193 ft | ||||
| MAN Nampa, ID | 170 nm out, 23 nm east of the line | no report just now | 2,537 ft | ||||
| BAM Battle Mountain, NV | 350 nm out, 11 nm east of the line | no report just now | 4,536 ft | ||||
| TMT Austin, NV | 420 nm out, 6 nm northwest of the line | no report just now | 5,735 ft | ||||
| TPH Tonopah, NV | 499 nm out, 2 nm east of the line | no report just now | 5,430 ft | ||||
| VCV Victorville, CA | 709 nm out, 11 nm west of the line, tower | no report just now | 2,885 ft | ||||
| SBD San Bernardino, CA | 739 nm out, 3 nm northwest of the line, tower | no report just now | 1,159 ft | ||||
| SAN San Diego, CA | destination | no report just now | 16 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 SAN when you get there the forecast at the estimated arrival, 3:32 am PDT (10:32 UTC)
SAN has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at LWS 6:07 pm PDT (01:07 UTC), at SAN 6:19 pm PDT (01:19 UTC) (civil twilight ends 6:44 pm PDT (01:44 UTC)). At 120 knots the arrival at SAN is before sunrise there (6:50 am PDT (13:50 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: Lewiston/Nez Perce County, San Diego International.
