Columbia Regional to Greenville Spartanburg International COU → GSP
535 nautical miles (615 statute miles) southeast on a straight line, true course 113°, about 113° magnetic at the departure end (variation 0E). At 120 knots that is 3 h 11 min at the quickest height in today's winds (34,000 ft, a 48-knot tailwind), arriving about 2:28 am EDT (06:28 UTC), after sunset at the destination. Right now COU is VFR, wind from the south (190°) at 6 knots; GSP is VFR, wind from the west-southwest (240°) at 5 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 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 277 to 436 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 396 to 495 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 485 to 525 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 COU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 34,000 ft, 9 nm northeast, 8:51 pm CDT (01:51 UTC): light to moderate chop turbulence, remarks: zme. 287 nm along the route, 9 nm northeast of the line.
as filed, and in English
BWG UA /OV BWG270010/TM 0151/FL340/TP B739/TB CONS LGT OCNL MOD CHOP/RM ZME
- Report
- a routine report filed through BWG
- Where
- 10 nm west (270°) of BWG
- Time
- 01:51 UTC
- Height
- at 34,000 ft
- Aircraft
- B739
- Turbulence
- continuous light occasional moderate chop
- Remarks
- zme
- A319 descending, 8 nm north, 9:52 pm CDT (02:52 UTC): remarks: tops 6,800 ft bases 2,300 ft. 436 nm along the route, 8 nm north of the line.
as filed, and in English
TYS UA /OV KTYS/TM 0252/FLDURD/TP A319/RM TOPS 068 BASES 023
- Report
- a routine report filed through TYS
- Where
- over KTYS
- Time
- 02:52 UTC
- Height
- during the descent
- Aircraft
- A319
- Remarks
- tops 6,800 ft bases 2,300 ft
- A320 descending, 11 nm north, 8:52 pm CDT (01:52 UTC): remarks: base 2,100 ft. 436 nm along the route, 11 nm north of the line.
as filed, and in English
TYS UA /OV 4 NE TYS/TM 0152/FLDURD/TP A320/RM BASE 021
- Report
- a routine report filed through TYS
- Where
- 4 northeast tys
- Time
- 01:52 UTC
- Height
- during the descent
- Aircraft
- A320
- Remarks
- base 2,100 ft
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 (COU, STL, CGI, EVV, BNA, TYS, GSP). 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 | 290° at 16 kt | −16 kt | 136 kt | 3 h 56 min | 3:13 am EDT (07:13 UTC) | |
| 5,500 ft | 300° at 14 kt | −14 kt | 134 kt | 4 h | 3:17 am EDT (07:17 UTC) | |
| 7,500 ft | 310° at 16 kt | −16 kt | 12 °C | 136 kt | 3 h 56 min | 3:13 am EDT (07:13 UTC) |
| 9,500 ft | 320° at 20 kt | −19 kt | 9 °C | 139 kt | 3 h 51 min | 3:08 am EDT (07:08 UTC) |
| 11,500 ft | 320° at 20 kt | −18 kt | 6 °C | 138 kt | 3 h 53 min | 3:10 am EDT (07:10 UTC) |
| 13,500 ft | 320° at 21 kt | −20 kt | 2 °C | 140 kt | 3 h 49 min | 3:06 am EDT (07:06 UTC) |
| 15,500 ft | 320° at 23 kt | −22 kt | -1 °C | 142 kt | 3 h 46 min | 3:03 am EDT (07:03 UTC) |
| 17,500 ft | 310° at 25 kt | −24 kt | -5 °C | 144 kt | 3 h 43 min | 3:00 am EDT (07:00 UTC) |
| 18,000 ft FL180 | 310° at 25 kt | −25 kt | -6 °C | 145 kt | 3 h 41 min | 2:58 am EDT (06:58 UTC) |
| 24,000 ft FL240 | 310° at 27 kt | −27 kt | -18 °C | 147 kt | 3 h 38 min | 2:55 am EDT (06:55 UTC) |
| 30,000 ft FL300 | 320° at 40 kt | −38 kt | -33 °C | 158 kt | 3 h 23 min | 2:40 am EDT (06:40 UTC) |
| 34,000 ft FL340 | 310° at 49 kt | −48 kt | -40 °C | 168 kt | 3 h 11 min | 2:28 am EDT (06:28 UTC) |
| 39,000 ft FL390 | 320° at 46 kt | −43 kt | -50 °C | 163 kt | 3 h 17 min | 2:34 am EDT (06:34 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| COU | used from 0 nm out; 25 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| STL | used from 49 nm out; 32 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| CGI | used from 99 nm out; 47 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| EVV | used from 198 nm out; 49 nm from the line | 280/15 | 290/12 17° | 310/16 10° | 320/13 5° | 310/22 -6° | 320/26 -18° | 320/38 -33° | 310/56 -41° | 320/55 -51° |
| BNA | used from 247 nm out; 50 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -50° |
| TYS | used from 346 nm out; 61 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| GSP | used from 495 nm out; 20 nm from the line | 320/22 | 340/19 13° | 320/18 8° | 310/24 5° | 300/34 -7° | 300/36 -18° | 290/30 -33° | 300/32 -39° | 320/42 -49° |
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 |
|---|---|---|---|---|---|---|---|
| COU Columbia, MO | departure | VFR | from the south (190°) at 6 knots | 10+ mi | none | 889 ft | 9:54 pm CDT (02:54 UTC) |
| SUS St Louis, MO | 69 nm out, 21 nm northeast of the line, tower | VFR | from the south (190°) at 4 knots | 10+ mi | none | 463 ft | 02:54 UTC |
| MDH Carbondale/Murphysboro, IL | 148 nm out, 5 nm southeast of the line, tower | VFR | from the south-southeast (160°) at 3 knots | 9 mi | none | 411 ft | 02:52 UTC |
| MWA Marion, IL | 168 nm out, 5 nm northwest of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 471 ft | 02:55 UTC |
| GDA Marion, KY | 218 nm out, 4 nm west of the line | VFR | calm | 10+ mi | none | 652 ft | 02:55 UTC |
| BWG Bowling Green, KY | 297 nm out, 14 nm northeast of the line | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 547 ft | 03:01 UTC |
| SRB Sparta, TN | 356 nm out, 15 nm south of the line | low IFR Sky: overcast at 100 feet Weather: fog | calm | 0.25 mi | 100 ft | 1,025 ft | 02:55 UTC |
| RKW Rockwood, TN | 396 nm out, 4 nm south of the line | marginal VFR Sky: a broken layer at 1,000 feet, overcast at 1,500 feet | variable at 4 knots, gusting to 11 | 10+ mi | 1,000 ft | 1,664 ft | 02:55 UTC |
| TYS Knoxville, TN | 436 nm out, 8 nm north of the line, tower | marginal VFR Sky: a few clouds at 1,300 feet, overcast at 2,000 feet | from the southwest (230°) at 6 knots | 10+ mi | 2,000 ft | 986 ft | 02:53 UTC |
| AVL Asheville, NC | 505 nm out, 21 nm northeast of the line, tower | VFR | from the north-northwest (340°) at 8 knots | 10+ mi | none | 2,163 ft | 02:54 UTC |
| GSP Greer, SC | destination | VFR | from the west-southwest (240°) at 5 knots | 10+ mi | none | 963 ft | 10:53 pm EDT (02:53 UTC) |
The highest airport on this list sits at 2,163 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GSP when you get there the forecast at the estimated arrival, 2:28 am EDT (06:28 UTC)
Wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR
The whole forecast for GSP
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for COU, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 19 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 24 nm from the route, 297 nm along the route · security · until 1 August · ZME
Daylight
Sunset at COU 6:35 pm CDT (23:35 UTC), at GSP 6:58 pm EDT (22:58 UTC) (civil twilight ends 7:23 pm EDT (23:23 UTC)). At 120 knots the arrival at GSP is before sunrise there (7:32 am EDT (11:32 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: Columbia Regional, Greenville Spartanburg International.