Plan a flight · Sun 9:40 pm CDT (02:40 UTC)

Jackson-Medgar Wiley Evers International to Louisville Muhammad Ali International JAN → SDF

411 nautical miles (473 statute miles) northeast on a straight line, true course 030°, about 031° magnetic at the departure end (variation 1W). At 120 knots that is 3 h 24 min at the quickest height in today's winds (3,500 ft, a 1-knot tailwind), arriving about 2:04 am EDT (06:04 UTC), after sunset at the destination. Right now JAN is VFR, wind calm; SDF is VFR, wind from the south-southwest (200°) 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: 516 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

No SIGMET or AIRMET covers any part of this route right now.

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 JAN.

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

B38M at 25,000 ft, 41 nm northwest, 7:12 pm CDT (00:12 UTC): light chop turbulence, remarks: ZME26. 235 nm along the route, 41 nm northwest of the line.
as filed, and in English
```
MKL UA /OV MKL045035/TM 0012/FL250/TP B38M/TB OCNL LGT CHOP/RM ZME26
```
Report
a routine report filed through MKL
Where
35 nm northeast (045°) of MKL
Time
00:12 UTC
Height
at 25,000 ft
Aircraft
B38M
Turbulence
occasional light chop
Remarks
ZME26
B738 at 34,000 ft, 19 nm west, 6:41 pm CDT (23:41 UTC): light to moderate chop turbulence, remarks: zme. 294 nm along the route, 19 nm west of the line.
as filed, and in English
```
CKV UA /OV CKV/TM 2341/FL340/TP B738/TB CONS LGT OCNL MOD CHOP/RM ZME
```
Report
a routine report filed through CKV
Where
over CKV
Time
23:41 UTC
Height
at 34,000 ft
Aircraft
B738
Turbulence
continuous light occasional moderate chop
Remarks
zme
B739 at 34,000 ft, 5 nm east, 8:51 pm CDT (01:51 UTC): light to moderate chop turbulence, remarks: zme. 323 nm along the route, 5 nm east 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
B38M at 21,000 ft, 9 nm southeast, 8:09 pm CDT (01:09 UTC): no turbulence, no icing. At the destination end, 9 nm southeast of the line.
as filed, and in English
```
SDF UA /OV IIU/TM 0109/FL210/TP B38M/TB NEG/IC NEG
```
Report
a routine report filed through SDF
Where
over IIU
Time
01:09 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
none
Icing
none

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 5 forecast points nearest it (JAN, MEM, HSV, BNA, LOU). 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 14 kt	−1 kt		121 kt	3 h 24 min	2:04 am EDT (06:04 UTC)
5,500 ft	320° at 16 kt	+4 kt		116 kt	3 h 33 min	2:13 am EDT (06:13 UTC)
7,500 ft	320° at 18 kt	+6 kt	14 °C	114 kt	3 h 36 min	2:16 am EDT (06:16 UTC)
9,500 ft	320° at 19 kt	+7 kt	10 °C	113 kt	3 h 38 min	2:18 am EDT (06:18 UTC)
11,500 ft	330° at 19 kt	+10 kt	6 °C	110 kt	3 h 44 min	2:24 am EDT (06:24 UTC)
13,500 ft	330° at 19 kt	+10 kt	2 °C	110 kt	3 h 44 min	2:24 am EDT (06:24 UTC)
15,500 ft	330° at 20 kt	+9 kt	-1 °C	111 kt	3 h 42 min	2:22 am EDT (06:22 UTC)
17,500 ft	320° at 21 kt	+8 kt	-5 °C	112 kt	3 h 40 min	2:20 am EDT (06:20 UTC)
18,000 ft FL180	320° at 21 kt	+7 kt	-6 °C	113 kt	3 h 38 min	2:18 am EDT (06:18 UTC)
24,000 ft FL240	330° at 27 kt	+13 kt	-18 °C	107 kt	3 h 50 min	2:30 am EDT (06:30 UTC)
30,000 ft FL300	320° at 45 kt	+17 kt	-32 °C	103 kt	3 h 59 min	2:39 am EDT (06:39 UTC)
34,000 ft FL340	320° at 54 kt	+19 kt	-41 °C	101 kt	4 h 04 min	2:44 am EDT (06:44 UTC)
39,000 ft FL390	330° at 42 kt	+22 kt	-51 °C	98 kt	4 h 12 min	2:52 am EDT (06:52 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
JAN	used from 0 nm out; 24 nm from the line	230/10	270/13 18°	270/11 12°	310/11 6°	300/15 -4°	300/22 -16°	310/33 -31°	320/37 -41°	330/41 -52°
MEM	used from 98 nm out; 81 nm from the line	230/19	260/16 15°	270/17 12°	300/13 6°	300/15 -5°	300/26 -18°	300/34 -32°	300/41 -40°	310/46 -52°
HSV	used from 147 nm out; 78 nm from the line	310/20	330/20 16°	320/27 11°	340/23 5°	320/23 -7°	340/30 -17°	320/50 -33°	330/61 -41°	340/41 -50°
BNA	used from 196 nm out; 68 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°
LOU	used from 343 nm out; 49 nm from the line	310/18	340/28 16°	340/29 10°	350/27 3°	330/27 -7°	340/39 -19°	330/58 -33°	330/67 -41°	330/40 -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
JAN Jackson, MS	departure	VFR	calm	10+ mi	none	346 ft	8:54 pm CDT (01:54 UTC)
OSX Kosciusko, MS	59 nm out, 5 nm southwest of the line	no report just now				494 ft
STF Starkville, MS	88 nm out, 20 nm southeast of the line	VFR	calm	10+ mi	none	332 ft	23:15 UTC
TUP Tupelo, MS	137 nm out, 4 nm west of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	346 ft	01:53 UTC
SNH Savannah, TN	196 nm out, 7 nm northwest of the line	VFR	calm	9 mi	none	472 ft	02:10 UTC
GHM Centerville, TN	245 nm out, 6 nm east of the line	no report just now				765 ft
JWN Nashville, TN	284 nm out, 17 nm southeast of the line, tower	VFR	calm	8 mi	none	501 ft	02:15 UTC
CKV Clarksville, TN	294 nm out, 19 nm west of the line	VFR	from the southwest (220°) at 3 knots	10+ mi	none	549 ft	01:52 UTC
BWG Bowling Green, KY	333 nm out, 11 nm southeast of the line	low IFR Weather: mist	calm	0.75 mi	none	547 ft	02:27 UTC
EKX Elizabethtown, KY	382 nm out, 8 nm southeast of the line	low IFR Sky: a broken layer at 300 feet Weather: fog	calm	0.5 mi	300 ft	775 ft	02:35 UTC
SDF Louisville, KY	destination	VFR	from the south-southwest (200°) at 4 knots	10+ mi	none	500 ft	9:56 pm EDT (01:56 UTC)

The highest airport on this list sits at 775 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SDF when you get there the forecast at the estimated arrival, 2:04 am EDT (06:04 UTC)

Wind from the southwest at 3 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SDF

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Sun 8:30 pm EDT (00:30 UTC): wind from the southwest at 3 knots, visibility more than 6 miles, clear skies
From Mon 6:00 am EDT (10:00 UTC): wind from the south-southeast at 3 knots, visibility 4 miles, mist, clear skies
From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies

The forecast for JAN, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 3 knots, visibility more than 6 miles, clear skies

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 18 nm from the route, 294 nm along the route · security · until 1 August · ZME

Daylight

Sunset at JAN 6:31 pm CDT (23:31 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 UTC)). At 120 knots the arrival at SDF is before sunrise there (7:48 am EDT (11:48 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 lower Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · 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: Jackson-Medgar Wiley Evers International, Louisville Muhammad Ali International.