Plan a flight · Mon 8:16 am EDT (12:16 UTC)

Piedmont Triad International to San Diego International GSO → SAN

1,845 nautical miles (2,123 statute miles) west on a straight line, true course 275°, about 283° magnetic at the departure end (variation 8W). At 120 knots that is 17 h 44 min at the quickest height in today's winds (8,500 ft, a 16-knot headwind), arriving about 11:00 pm PDT (06:00 UTC), after sunset at the destination. Right now GSO is VFR, wind from the west-northwest (290°) at 9 knots; SAN is VFR, wind from the east (090°) at 3 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: 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

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 first 60 nm of the route.
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 30 to 120 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 30 to 120 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 60 to 239 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 80 to 349 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 638 to 1027 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 1217 to 1536 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 1276 nm along the route.
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 1416 to 1506 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1426 to 1825 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1506 to 1605 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). Near the route, 1566 nm along the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1805 to 1835 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 GSO.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

BCS3 at 35,000 ft, 19 nm south, 6:57 am EDT (10:57 UTC): remarks: mountain wave + 10 knots ztlfd 28. At the departure end, 19 nm south of the line.
as filed, and in English
```
ATL UA /OV BZM100026/TM 1057/FL350/TP BCS3/RM MOUNTAIN WAVE +/- 10KTS ZTLFD 28
```
Report
a routine report filed through ATL
Where
26 nm east (100°) of BZM
Time
10:57 UTC
Height
at 35,000 ft
Aircraft
BCS3
Remarks
mountain wave + 10 knots ztlfd 28
A321 at 30,000 ft, 11 nm south, 7:55 am EDT (11:55 UTC): light turbulence, remarks: ztlfd 43. At the departure end, 11 nm south of the line.
as filed, and in English
```
ATL UA /OV BZM330010/TM 1155/FL300/TP A321/TB LGT/RM ZTLFD 43
```
Report
a routine report filed through ATL
Where
10 nm northwest (330°) of BZM
Time
11:55 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
light
Remarks
ztlfd 43
A320 at 34,000 ft, 50 nm south, 7:17 am EDT (11:17 UTC): light turbulence, remarks: ztlfd 50. 110 nm along the route, 50 nm south of the line.
as filed, and in English
```
ATL UA /OV SUG/TM 1117/FL340/TP A320/TB LGT/RM ZTLFD 50
```
Report
a routine report filed through ATL
Where
over SUG
Time
11:17 UTC
Height
at 34,000 ft
Aircraft
A320
Turbulence
light
Remarks
ztlfd 50
CRJ9 at 6,000 ft, 10 nm northwest, 6:10 am EDT (10:10 UTC): a broken layer from 4,600 ft to 5,800 ft. 120 nm along the route, 10 nm northwest 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
E75L at 5,000 ft, 33 nm south, 8:03 am EDT (12:03 UTC): overcast up to 1,100 ft. 199 nm along the route, 33 nm south of the line.
as filed, and in English
```
TYS UA /OV TYS230005/TM 1203/FL050/TP E75L/SK OVC-TOP011
```
Report
a routine report filed through TYS
Where
5 nm southwest (230°) of TYS
Time
12:03 UTC
Height
at 5,000 ft
Aircraft
E75L
Sky
overcast, tops 1,100 ft
B739 at 36,000 ft, 43 nm south, 7:34 am EDT (11:34 UTC): light turbulence, remarks: ztlfd 36. 269 nm along the route, 43 nm south of the line.
as filed, and in English
```
ATL UA /OV HCH250025/TM 1134/FL360/TP B739/TB LGT/RM ZTLFD 36
```
Report
a routine report filed through ATL
Where
25 nm west (250°) of HCH
Time
11:34 UTC
Height
at 36,000 ft
Aircraft
B739
Turbulence
light
Remarks
ztlfd 36
E75L at 33,000 ft, 16 nm north, 7:09 am EDT (11:09 UTC): no turbulence, remarks: ZME62. 299 nm along the route, 16 nm north of the line.
as filed, and in English
```
BNA UA /OV BNA045040/TM 1109/FL330/TP E75L/TB NEG/RM ZME62
```
Report
a routine report filed through BNA
Where
40 nm northeast (045°) of BNA
Time
11:09 UTC
Height
at 33,000 ft
Aircraft
E75L
Turbulence
none
Remarks
ZME62
B737 at 22,000 ft, 13 nm south, 7:35 am EDT (11:35 UTC): light to moderate chop turbulence from 22,000 ft to 24,000 ft, remarks: ZFW49. 897 nm along the route, 13 nm south of the line.
as filed, and in English
```
OKC UA /OV IRW290045/TM 1135/FL220/TP B737/TB CONS LGT-MOD CHOP 220-240/RM -ZFW49
```
Report
a routine report filed through OKC
Where
45 nm west (290°) of IRW
Time
11:35 UTC
Height
at 22,000 ft
Aircraft
B737
Turbulence
continuous light to moderate chop from 22,000 ft to 24,000 ft
Remarks
ZFW49

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 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 16 forecast points nearest it (ROA, TRI, TYS, BNA, CGI, SGF, FSM, TUL, OKC, GAG, AMA, TCC, ABQ, PHX, BLH, 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
4,500 ft	250° at 18 kt	+19 kt	16 °C	101 kt	18 h 16 min	11:32 pm PDT (06:32 UTC)
6,500 ft	250° at 16 kt	+17 kt	13 °C	103 kt	17 h 55 min	11:11 pm PDT (06:11 UTC)
8,500 ft	240° at 15 kt	+16 kt	10 °C	104 kt	17 h 44 min	11:00 pm PDT (06:00 UTC)
10,500 ft	240° at 16 kt	+16 kt	7 °C	104 kt	17 h 44 min	11:00 pm PDT (06:00 UTC)
12,500 ft	240° at 19 kt	+19 kt	3 °C	101 kt	18 h 16 min	11:32 pm PDT (06:32 UTC)
14,500 ft	240° at 23 kt	+23 kt	0 °C	97 kt	19 h 01 min	12:17 am PDT (07:17 UTC)
16,500 ft	240° at 27 kt	+28 kt	-4 °C	92 kt	20 h 03 min	1:19 am PDT (08:19 UTC)
18,000 ft FL180	240° at 30 kt	+31 kt	-7 °C	89 kt	20 h 44 min	2:00 am PDT (09:00 UTC)
24,000 ft FL240	250° at 39 kt	+39 kt	-18 °C	81 kt	22 h 47 min	4:03 am PDT (11:03 UTC)
30,000 ft FL300	250° at 52 kt	+55 kt	-29 °C	65 kt	28 h 23 min	9:39 am PDT (16:39 UTC)
34,000 ft FL340	260° at 53 kt	+57 kt	-38 °C	63 kt	29 h 17 min	10:33 am PDT (17:33 UTC)
39,000 ft FL390	260° at 50 kt	+53 kt	-49 °C	67 kt	27 h 32 min	8:48 am PDT (15:48 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
ROA	used from 0 nm out; 75 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°
TRI	used from 50 nm out; 48 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°
TYS	used from 150 nm out; 36 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°
BNA	used from 249 nm out; 54 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°
CGI	used from 399 nm out; 67 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°
SGF	used from 548 nm out; 96 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°
FSM	used from 648 nm out; 59 nm from the line	230/33	260/23 15°	240/23 11°	230/18 8°	230/20 -8°	250/31 -17°	280/51 -30°	280/52 -39°	300/47 -51°
TUL	used from 698 nm out; 50 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°
OKC	used from 848 nm out; 37 nm from the line	220/43	230/31 17°	260/13 16°	270/11 7°	240/20 -6°	250/32 -17°	260/60 -28°	280/50 -37°	290/45 -50°
GAG	used from 897 nm out; 48 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°
AMA	used from 997 nm out; 44 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°
TCC	used from 1097 nm out; 33 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°
ABQ	used from 1246 nm out; 29 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°
PHX	used from 1446 nm out; 115 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°
BLH	used from 1645 nm out; 44 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°
SAN	used from 1795 nm out; 25 nm from the line	240/10	220/19 6°	230/26 2°	230/29 -3°	230/43 -11°	220/61 -20°	220/72 -29°	220/75 -38°	220/71 -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
GSO Greensboro, NC	departure	VFR Sky: a few clouds at 11,000 feet	from the west-northwest (290°) at 9 knots	10+ mi	none	925 ft	7:54 am EDT (11:54 UTC)
TRI Bristol/Johnson/Kingsport, TN	120 nm out, 14 nm north of the line, tower	marginal VFR Sky: overcast at 1,900 feet	from the west (270°) at 6 knots	10+ mi	1,900 ft	1,518 ft	11:53 UTC
JWN Nashville, TN	339 nm out, 11 nm south of the line, tower	VFR	calm	10+ mi	none	501 ft	11:50 UTC
UCY Union City, TN	439 nm out, 1 nm northeast of the line	VFR	calm	10+ mi	none	345 ft	11:55 UTC
ASG Springdale, AR	688 nm out, 3 nm southeast of the line, tower	VFR	from the south-southwest (200°) at 8 knots	10+ mi	none	1,352 ft	11:48 UTC
RVS Tulsa, OK	778 nm out, 4 nm south of the line, tower	VFR	calm	10+ mi	none	638 ft	11:53 UTC
AMA Amarillo, TX	1057 nm out, 22 nm south of the line, tower	VFR Sky: a broken layer at 12,000 feet	from the south-southwest (200°) at 13 knots	10+ mi	12,000 ft	3,606 ft	11:53 UTC
TCC Tucumcari, NM	1157 nm out, 10 nm southeast of the line	VFR	from the west (280°) at 5 knots	10+ mi	none	4,064 ft	11:53 UTC
ABQ Albuquerque, NM	1296 nm out, 8 nm northwest of the line, tower	VFR Sky: overcast at 7,000 feet	from the southeast (130°) at 5 knots	10+ mi	7,000 ft	5,354 ft	11:52 UTC
DVT Phoenix, AZ	1585 nm out, 13 nm southeast of the line, tower	VFR Sky: a few clouds at 7,500 feet, a broken layer at 9,500 feet	from the southeast (130°) at 7 knots	10+ mi	9,500 ft	1,478 ft	11:53 UTC
RNM Ramona, CA	1825 nm out, 14 nm northwest of the line, tower	IFR Sky: a broken layer at 900 feet, a broken layer at 1,600 feet, overcast at 3,000 feet Weather: mist	from the west-southwest (250°) at 6 knots	4 mi	900 ft	1,394 ft	12:07 UTC
SAN San Diego, CA	destination	VFR Sky: a few clouds at 2,000 feet, scattered clouds at 3,100 feet, a broken layer at 4,500 feet	from the east (090°) at 3 knots	8 mi	4,500 ft	16 ft	4:51 am PDT (11:51 UTC)

The highest airport on this list sits at 5,354 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, 11:00 pm PDT (06:00 UTC)

Wind light and variable, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, a broken layer at 4,000 feet VFR

The whole forecast for SAN

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
At times between Mon 5:00 am PDT (12:00 UTC) and 9:00 am PDT (16:00 UTC): visibility 5 miles, mist, a broken layer at 2,000 feet
From Mon 9:00 am PDT (16:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the southwest at 10 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, a broken layer at 4,000 feet
From Tue 12:00 am PDT (07:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 2,000 feet, a broken layer at 3,000 feet
From Tue 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet

The forecast for GSO, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, a few clouds at 3,000 feet, a few 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, scattered clouds at 10,000 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

Temporary flight restrictions on the line or within 25 nm of it

6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 1 nm from the route, 329 nm along the route · security · until 1 August · ZME
6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local on the route, at the destination end · security · until 13 July · ZLA
6/2652 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 22 nm from the route, at the destination end · security · until 2 January · ZLA

Daylight

Sunset at GSO 6:48 pm EDT (22:48 UTC), at SAN 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:43 pm PDT (01:43 UTC)). At 120 knots the arrival at SAN 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

Radar now, the Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Piedmont Triad International, San Diego International.