Los Angeles International to Piedmont Triad International LAX → GSO
1,884 nautical miles (2,168 statute miles) east on a straight line, true course 075°, about 063° magnetic at the departure end (variation 12E). At 120 knots that is 10 h 32 min at the quickest height in today's winds (34,000 ft, a 59-knot tailwind), arriving about 5:34 pm EDT (21:34 UTC). Right now LAX is marginal VFR, wind from the northwest (320°) at 6 knots; GSO is VFR, wind from the west-southwest (250°) at 8 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: 3 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 SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 80 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 40 to 379 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 219 to 369 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 239 to 349 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 309 to 718 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). Over the route from 319 to 399 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 518 to 678 nm out.
- AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 857 to 1266 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1545 to 1804 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1644 to 1824 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 1764 to 1854 nm out.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the route from 1774 to 1854 nm out.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the last 60 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 LAX.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent BE20 at 500 ft, 34 nm north, 2:34 am PDT (09:34 UTC): remarks: low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl. 867 nm along the route, 34 nm north of the line.
as filed, and in English
LBL UUA /OV LBL/TM 0934/FL005/TP BE20/RM LLWS 500FT +/-10KT ZKC FD DL
- Report
- an urgent report filed through LBL
- Where
- over LBL
- Time
- 09:34 UTC
- Height
- at 500 ft
- Aircraft
- BE20
- Remarks
- low-level wind shear 500FT a 10-knot loss of airspeed zkc fd dl
- B744 at 1,700 ft, 0 nm east, 2:24 am PDT (09:24 UTC): a few clouds above 1,700 ft, remarks: during the descent runway 25L lax. At the departure end, 0 nm east of the line.
as filed, and in English
LAX UA /OV KLAX/TM 0924/FL017/TP B744/SK FEW017/RM DURD RY25L LAX
- Report
- a routine report filed through LAX
- Where
- over KLAX
- Time
- 09:24 UTC
- Height
- at 1,700 ft
- Aircraft
- B744
- Sky
- a few clouds from 1,700 ft
- Remarks
- during the descent runway 25L lax
- CRJ9 at 6,000 ft, 6 nm northeast, 3:10 am PDT (10:10 UTC): a broken layer from 4,600 ft to 5,800 ft. 1754 nm along the route, 6 nm northeast of the line.
as filed, and in English
TRI UA /OV BOOIE/TM 1010/FL060/TP CRJ9/SK BKN046-TOP058
- Report
- a routine report filed through TRI
- Where
- booie
- Time
- 10:10 UTC
- Height
- at 6,000 ft
- Aircraft
- CRJ9
- Sky
- a broken layer from 4,600 ft, tops 5,800 ft
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 16 forecast points nearest it (ONT, BLH, PRC, FMN, ABQ, TCC, AMA, GAG, ICT, TUL, SGF, CGI, BNA, TYS, TRI, ROA). 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 | 260° at 18 kt | −19 kt | 16 °C | 139 kt | 13 h 33 min | 8:35 pm EDT (00:35 UTC) |
| 7,500 ft | 240° at 16 kt | −16 kt | 11 °C | 136 kt | 13 h 51 min | 8:53 pm EDT (00:53 UTC) |
| 9,500 ft | 240° at 16 kt | −16 kt | 9 °C | 136 kt | 13 h 51 min | 8:53 pm EDT (00:53 UTC) |
| 11,500 ft | 240° at 18 kt | −17 kt | 5 °C | 137 kt | 13 h 45 min | 8:47 pm EDT (00:47 UTC) |
| 13,500 ft | 240° at 21 kt | −21 kt | 1 °C | 141 kt | 13 h 22 min | 8:24 pm EDT (00:24 UTC) |
| 15,500 ft | 240° at 25 kt | −25 kt | -3 °C | 145 kt | 13 h | 8:02 pm EDT (00:02 UTC) |
| 17,500 ft | 240° at 29 kt | −30 kt | -7 °C | 150 kt | 12 h 34 min | 7:36 pm EDT (23:36 UTC) |
| 18,000 ft FL180 | 240° at 30 kt | −31 kt | -8 °C | 151 kt | 12 h 29 min | 7:31 pm EDT (23:31 UTC) |
| 24,000 ft FL240 | 240° at 39 kt | −39 kt | -19 °C | 159 kt | 11 h 51 min | 6:53 pm EDT (22:53 UTC) |
| 30,000 ft FL300 | 250° at 54 kt | −56 kt | -30 °C | 176 kt | 10 h 42 min | 5:44 pm EDT (21:44 UTC) |
| 34,000 ft FL340 | 260° at 56 kt | −59 kt | -38 °C | 179 kt | 10 h 32 min | 5:34 pm EDT (21:34 UTC) |
| 39,000 ft FL390 | 260° at 51 kt | −54 kt | -49 °C | 174 kt | 10 h 50 min | 5:52 pm EDT (21:52 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; 16 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 100 nm out; 80 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° |
| PRC | used from 199 nm out; 79 nm from the line | 200/37 6° | 200/35 0° | 220/60 -11° | 220/71 -20° | 220/88 -29° | 220/98 -35° | 220/94 -45° | ||
| FMN | used from 399 nm out; 115 nm from the line | 220/16 6° | 220/39 1° | 220/50 -10° | 230/67 -23° | 230/94 -29° | 230/102 -35° | 230/90 -46° | ||
| ABQ | used from 548 nm out; 56 nm from the line | 220/19 9° | 220/35 3° | 230/50 -8° | 240/64 -19° | 230/83 -26° | 230/85 -36° | 230/80 -48° | ||
| TCC | used from 648 nm out; 88 nm from the line | 240/20 | 230/22 13° | 230/27 6° | 230/40 -7° | 240/55 -18° | 240/74 -27° | 240/68 -37° | 250/64 -49° | |
| AMA | used from 797 nm out; 72 nm from the line | 230/32 | 230/28 14° | 230/27 7° | 230/38 -6° | 230/50 -17° | 250/69 -28° | 260/62 -37° | 270/65 -49° | |
| GAG | used from 847 nm out; 55 nm from the line | 240/35 22° | 240/27 14° | 230/25 6° | 240/38 -7° | 230/44 -19° | 250/73 -28° | 270/66 -37° | 270/58 -49° | |
| ICT | used from 997 nm out; 62 nm from the line | 230/45 | 240/33 21° | 230/23 14° | 230/22 7° | 240/29 -7° | 240/36 -20° | 260/78 -29° | 270/69 -36° | 270/56 -49° |
| TUL | used from 1046 nm out; 52 nm from the line | 230/42 | 250/23 17° | 220/16 14° | 240/10 8° | 240/20 -6° | 260/28 -17° | 270/61 -29° | 280/52 -38° | 290/46 -50° |
| SGF | used from 1196 nm out; 31 nm from the line | 230/37 | 260/20 15° | 250/16 13° | 250/15 8° | 260/28 -7° | 250/31 -17° | 280/59 -31° | 280/59 -39° | 290/55 -50° |
| CGI | used from 1345 nm out; 54 nm from the line | 260/22 | 250/15 15° | 250/13 11° | 250/16 6° | 270/29 -7° | 280/30 -18° | 290/40 -31° | 290/55 -40° | 300/51 -51° |
| BNA | used from 1495 nm out; 49 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
| TYS | used from 1644 nm out; 44 nm from the line | 330/16 | 350/32 14° | 350/37 9° | 340/30 5° | 330/28 -6° | 340/36 -19° | 330/40 -33° | 330/51 -41° | 330/36 -51° |
| TRI | used from 1694 nm out; 44 nm from the line | 340/25 11° | 350/37 9° | 350/34 6° | 340/39 -7° | 340/43 -19° | 340/55 -32° | 330/58 -42° | 320/37 -50° | |
| ROA | used from 1844 nm out; 73 nm from the line | 310/32 | 340/32 14° | 350/25 9° | 340/24 3° | 340/42 -8° | 340/52 -20° | 350/62 -34° | 350/64 -39° | 310/44 -48° |
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 |
|---|---|---|---|---|---|---|---|
| LAX Los Angeles, CA | departure | marginal VFR Sky: a few clouds at 1,800 feet, a broken layer at 2,200 feet, overcast at 3,500 feet | from the northwest (320°) at 6 knots | 7 mi | 2,200 ft | 127 ft | 3:53 am PDT (10:53 UTC) |
| POC La Verne, CA | 30 nm out, 3 nm northeast of the line, tower | VFR Sky: scattered clouds at 2,500 feet, overcast at 5,500 feet | calm | 7 mi | 5,500 ft | 1,013 ft | 02:47 UTC |
| FLG Flagstaff, AZ | 339 nm out, 6 nm southeast of the line, tower | marginal VFR Sky: scattered clouds at 800 feet, a broken layer at 2,300 feet, overcast at 3,400 feet Weather: light rain, mist | from the south (190°) at 15 knots, gusting to 26 | 4 mi | 2,300 ft | 7,014 ft | 10:57 UTC |
| RQE Window Rock, AZ | 468 nm out, 3 nm northeast of the line | VFR Sky: overcast at 6,500 feet | from the south-southwest (200°) at 3 knots | 10+ mi | 6,500 ft | 6,742 ft | 10:53 UTC |
| SAF Santa Fe, NM | 618 nm out, 24 nm south of the line, tower | VFR Sky: scattered clouds at 5,500 feet | calm | 10+ mi | none | 6,348 ft | 10:53 UTC |
| PYX Perryton, TX | 877 nm out, 5 nm south of the line | no report just now | 2,918 ft | ||||
| WDG Enid, OK | 1017 nm out, 18 nm south of the line, tower | VFR | from the south (190°) at 9 knots | 10+ mi | none | 1,167 ft | 10:55 UTC |
| BBG Branson, MO | 1246 nm out, 15 nm south of the line, tower | VFR | calm | 10+ mi | none | 1,302 ft | 10:55 UTC |
| PAH Paducah, KY | 1455 nm out, 21 nm north of the line, tower | VFR | calm | 8 mi | none | 410 ft | 10:53 UTC |
| SCX Oneida, TN | 1654 nm out, 5 nm southeast of the line | low IFR Sky: overcast at 100 feet Weather: fog | from the south (180°) at 3 knots | 0.25 mi | 100 ft | 1,544 ft | 10:35 UTC |
| TRI Bristol/Johnson/Kingsport, TN | 1764 nm out, 8 nm north of the line, tower | marginal VFR Sky: a broken layer at 2,200 feet, overcast at 2,600 feet | from the west-southwest (250°) at 6 knots | 10+ mi | 2,200 ft | 1,518 ft | 11:00 UTC |
| GSO Greensboro, NC | destination | VFR Sky: a few clouds at 3,400 feet, a few clouds at 12,000 feet | from the west-southwest (250°) at 8 knots | 10+ mi | none | 925 ft | 6:54 am EDT (10:54 UTC) |
The highest airport on this list sits at 7,014 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GSO when you get there the forecast at the estimated arrival, 5:34 pm EDT (21:34 UTC)
Wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR
The whole forecast for GSO
- From Mon 2:00 am EDT (06:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, scattered clouds at 10,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,500 feet
- From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for LAX, the departure
- From Mon 1:00 am PDT (08:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, light rain, overcast at 2,500 feet
- From Mon 3:00 am PDT (10:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, a broken layer at 3,000 feet
- At times between Mon 3:00 am PDT (10:00 UTC) and 7:00 am PDT (14:00 UTC): visibility 5 miles, light rain, overcast at 2,500 feet
- From Mon 10:00 am PDT (17:00 UTC): wind from the west-southwest at 15 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Mon 6:00 pm PDT (01:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 12 nm from the route, at the departure end · security · ZLA
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 15 nm from the route, 199 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 16 nm from the route, 1555 nm along the route · security · until 1 August · ZME
Daylight
Sunset at LAX 6:22 pm PDT (01:22 UTC), at GSO 6:48 pm EDT (22:48 UTC) (civil twilight ends 7:13 pm EDT (23:13 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: Los Angeles International, Piedmont Triad International.
