Columbia Regional to Gainesville Regional COU → GNV
737 nautical miles (848 statute miles) southeast on a straight line, true course 135°, about 135° magnetic at the departure end (variation 0E). At 120 knots that is 4 h 30 min at the quickest height in today's winds (34,000 ft, a 44-knot tailwind), arriving about 12:45 pm EDT (16:45 UTC). Right now COU is VFR, wind from the south (170°) at 4 knots; GNV is VFR, wind from the west-northwest (300°) at 4 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: 6 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 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 first 30 nm of the route.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 368 nm along the route.
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Near the route, 428 nm along the route.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the last 109 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 COU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 38,000 ft, 48 nm northeast, 6:00 am CDT (11:00 UTC): moderate turbulence, no icing, remarks: ztlfd 22. 577 nm along the route, 48 nm northeast of the line.
as filed, and in English
ATL UA /OV VNA/TM 1100/FL380/TP B38M/TB MOD/IC NEG/RM ZTLFD 22
- Report
- a routine report filed through ATL
- Where
- over VNA
- Time
- 11:00 UTC
- Height
- at 38,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- Icing
- none
- Remarks
- ztlfd 22
- B739 at 34,000 ft, 35 nm southwest, 5:53 am CDT (10:53 UTC): light to moderate turbulence. 677 nm along the route, 35 nm southwest of the line.
as filed, and in English
TLH UA /OV SZW120050/TM 1053/FL340/TP B739/TB CONS LGT OCNL MOD
- Report
- a routine report filed through TLH
- Where
- 50 nm southeast (120°) of SZW
- Time
- 10:53 UTC
- Height
- at 34,000 ft
- Aircraft
- B739
- Turbulence
- continuous light occasional moderate
- B738 at 38,000 ft, 31 nm south, 6:09 am CDT (11:09 UTC): no turbulence. At the destination end, 31 nm south of the line.
as filed, and in English
OCF UA /OV OCF/TM 1109/FL380/TP B738/TB NEG
- Report
- a routine report filed through OCF
- Where
- over OCF
- Time
- 11:09 UTC
- Height
- at 38,000 ft
- Aircraft
- B738
- Turbulence
- none
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 9 forecast points nearest it (COU, STL, CGI, BNA, HSV, BHM, CSG, TLH, JAX). 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 | 300° at 19 kt | −18 kt | 138 kt | 5 h 20 min | 1:35 pm EDT (17:35 UTC) | |
| 5,500 ft | 310° at 16 kt | −16 kt | 136 kt | 5 h 25 min | 1:40 pm EDT (17:40 UTC) | |
| 7,500 ft | 310° at 15 kt | −15 kt | 14 °C | 135 kt | 5 h 28 min | 1:43 pm EDT (17:43 UTC) |
| 9,500 ft | 310° at 14 kt | −14 kt | 10 °C | 134 kt | 5 h 30 min | 1:45 pm EDT (17:45 UTC) |
| 11,500 ft | 300° at 14 kt | −13 kt | 7 °C | 133 kt | 5 h 32 min | 1:47 pm EDT (17:47 UTC) |
| 13,500 ft | 300° at 16 kt | −15 kt | 3 °C | 135 kt | 5 h 28 min | 1:43 pm EDT (17:43 UTC) |
| 15,500 ft | 300° at 18 kt | −18 kt | -1 °C | 138 kt | 5 h 20 min | 1:35 pm EDT (17:35 UTC) |
| 17,500 ft | 300° at 21 kt | −21 kt | -5 °C | 141 kt | 5 h 14 min | 1:29 pm EDT (17:29 UTC) |
| 18,000 ft FL180 | 300° at 22 kt | −21 kt | -6 °C | 141 kt | 5 h 14 min | 1:29 pm EDT (17:29 UTC) |
| 24,000 ft FL240 | 310° at 23 kt | −23 kt | -18 °C | 143 kt | 5 h 09 min | 1:24 pm EDT (17:24 UTC) |
| 30,000 ft FL300 | 310° at 38 kt | −38 kt | -32 °C | 158 kt | 4 h 40 min | 12:55 pm EDT (16:55 UTC) |
| 34,000 ft FL340 | 310° at 43 kt | −44 kt | -41 °C | 164 kt | 4 h 30 min | 12:45 pm EDT (16:45 UTC) |
| 39,000 ft FL390 | 320° at 38 kt | −38 kt | -51 °C | 158 kt | 4 h 40 min | 12:55 pm EDT (16:55 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| COU | used from 0 nm out; 25 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| STL | used from 50 nm out; 60 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| CGI | used from 100 nm out; 39 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 249 nm out; 85 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° |
| HSV | used from 299 nm out; 43 nm from the line | 300/20 | 310/14 16° | 310/18 10° | 310/15 4° | 320/19 -5° | 290/16 -18° | 320/36 -32° | 320/47 -41° | 330/42 -50° |
| BHM | used from 398 nm out; 26 nm from the line | 310/19 | 310/15 16° | 320/19 11° | 330/15 5° | 330/23 -5° | 320/14 -18° | 320/36 -32° | 330/44 -40° | 340/36 -51° |
| CSG | used from 448 nm out; 46 nm from the line | 330/27 | 340/28 16° | 350/28 11° | 330/17 6° | 340/25 -6° | 350/33 -18° | 330/46 -32° | 340/45 -41° | 350/31 -52° |
| TLH | used from 597 nm out; 57 nm from the line | 340/23 | 350/26 17° | 350/21 11° | 300/13 6° | 320/25 -6° | 340/35 -16° | 350/44 -32° | 360/51 -42° | 350/33 -52° |
| JAX | used from 697 nm out; 54 nm from the line | 310/22 | 310/19 16° | 300/22 14° | 290/25 8° | 300/25 -7° | 300/24 -18° | 270/20 -33° | 260/25 -41° | 290/17 -51° |
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 (170°) at 4 knots | 10+ mi | none | 889 ft | 6:54 am CDT (11:54 UTC) |
| UBX Cuba, MO | 60 nm out, 5 nm southwest of the line | no report just now | 1,023 ft | ||||
| FAM Farmington, MO | 100 nm out, 17 nm northeast of the line | VFR | calm | 10+ mi | none | 945 ft | 20:07 UTC |
| CGI Cape Girardeau, MO | 159 nm out, 24 nm northeast of the line, tower | VFR | calm | 10+ mi | none | 341 ft | 11:53 UTC |
| MKL Jackson, TN | 249 nm out, 20 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 434 ft | 11:53 UTC |
| HSV Huntsville, AL | 358 nm out, 19 nm northeast of the line, tower | VFR Sky: scattered clouds at 13,000 feet | from the east (100°) at 4 knots | 10+ mi | none | 628 ft | 11:53 UTC |
| BHM Birmingham, AL | 408 nm out, 24 nm southwest of the line, tower | VFR Sky: a few clouds at 4,000 feet, a few clouds at 8,000 feet, a few clouds at 25,000 feet | calm | 8 mi | none | 650 ft | 11:53 UTC |
| AUO Auburn, AL | 498 nm out, 11 nm southwest of the line, tower | reported, no category | calm | none | 776 ft | 05:21 UTC | |
| CSG Columbus, GA | 518 nm out, 4 nm northeast of the line, tower | VFR | calm | 9 mi | none | 397 ft | 11:51 UTC |
| VLD Valdosta, GA | 657 nm out, 4 nm north of the line, tower | VFR | calm | 9 mi | none | 203 ft | 11:53 UTC |
| LCQ Lake City, FL | 707 nm out, 7 nm northeast of the line, tower | VFR | from the west-northwest (290°) at 4 knots | 10+ mi | none | 200 ft | 11:55 UTC |
| GNV Gainesville, FL | destination | VFR | from the west-northwest (300°) at 4 knots | 10+ mi | none | 151 ft | 7:53 am EDT (11:53 UTC) |
The highest airport on this list sits at 1,023 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GNV when you get there the forecast at the estimated arrival, 12:45 pm EDT (16:45 UTC)
Wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 4,000 feet, a few clouds at 25,000 feet VFR
The whole forecast for GNV
- From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 10:30 am EDT (14:30 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 4,000 feet, a few clouds at 25,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:30 pm EDT (01:30 UTC): wind calm, visibility more than 6 miles, clear skies
The forecast for COU, the departure
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, clear skies
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 8 knots, 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
Daylight
Sunset at COU 6:35 pm CDT (23:35 UTC), at GNV 7:02 pm EDT (23:02 UTC) (civil twilight ends 7:26 pm EDT (23:26 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, Gainesville Regional.