Plan a flight · Sun 10:03 pm EDT (02:03 UTC)

Nantucket Memorial to Louisville Muhammad Ali International ACK → SDF

746 nautical miles (859 statute miles) west on a straight line, true course 261°, about 275° magnetic at the departure end (variation 14W). At 120 knots that is 6 h 16 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 4:19 am EDT (08:19 UTC), after sunset at the destination. Right now ACK is marginal VFR, wind from the east (100°) at 15 knots; 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: 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 657 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 239 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 229 to 458 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 328 to 537 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 ACK.

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

urgent PC12 at 11,000 ft, 39 nm north, 7:29 pm EDT (23:29 UTC): moderate turbulence, remarks: during the descent on wipor arrival. 90 nm along the route, 39 nm north of the line.
as filed, and in English
```
IJD UUA /OV ORW340007/TM 2329/FL110/TP PC12/TB MOD 110-100 SEV 100-080/RM DURD ON WIPOR ARR
```
Report
an urgent report filed through IJD
Where
7 nm north (340°) of ORW
Time
23:29 UTC
Height
at 11,000 ft
Aircraft
PC12
Turbulence
moderate from 11,000 ft to 10,000 ft severe from 10,000 ft to 8,000 ft
Remarks
during the descent on wipor arrival
BCS3 at 18,000 ft, 32 nm north, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. 40 nm along the route, 32 nm north of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:17 UTC
Height
at 18,000 ft
Aircraft
BCS3
Turbulence
moderate chop
Remarks
moderate CHOP180-210 smooth above 22,000 ft
PC12 at 10,000 ft, 40 nm north, 7:53 pm EDT (23:53 UTC): moderate turbulence. 90 nm along the route, 40 nm north of the line.
as filed, and in English
```
BDL UA /OV HFD100017/TM 2353/FL100/TP PC12/TB MOD
```
Report
a routine report filed through BDL
Where
17 nm east (100°) of HFD
Time
23:53 UTC
Height
at 10,000 ft
Aircraft
PC12
Turbulence
moderate
BCS3 at 4,000 ft, 9 nm north, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 139 nm along the route, 9 nm north of the line.
as filed, and in English
```
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
```
Report
a routine report filed through BDR
Where
10 nm south (180°) of BDR
Time
00:42 UTC
Height
at 4,000 ft
Aircraft
BCS3
Weather
instrument conditions
Turbulence
moderate
TBM9 descending, 3 nm south, 7:45 pm EDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. 139 nm along the route, 3 nm south of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 2345/FLDURD/TP TBM9/SK BKN007/TB MOD
```
Report
a routine report filed through ISP
Where
over ISP
Time
23:45 UTC
Height
during the descent
Aircraft
TBM9
Sky
a broken layer from 700 ft
Turbulence
moderate
A333 at 3,000 ft, 31 nm south, 7:10 pm EDT (23:10 UTC): moderate turbulence. 169 nm along the route, 31 nm south of the line.
as filed, and in English
```
JFK UA /OV JFK180025/TM 2310/FL030/TP A333/TB MOD TURB
```
Report
a routine report filed through JFK
Where
25 nm south (180°) of JFK
Time
23:10 UTC
Height
at 3,000 ft
Aircraft
A333
Turbulence
moderate turbulence
B38M at 6,000 ft, 1 nm northwest, 8:47 pm EDT (00:47 UTC): moderate turbulence. 189 nm along the route, 1 nm northwest of the line.
as filed, and in English
```
EWR UA /OV 2 NW OF EWR/TM 0047/FL60/TP B38M/TB MODERATE
```
Report
a routine report filed through EWR
Where
2 northwest of ewr
Time
00:47 UTC
Height
at 6,000 ft
Aircraft
B38M
Turbulence
moderate
CRJ7 at 15,000 ft, 22 nm south, 8:07 pm EDT (00:07 UTC): moderate chop turbulence. 189 nm along the route, 22 nm south of the line.
as filed, and in English
```
BLM UA /OV COL/TM 0007/FL150/TP CRJ7/TB MOD CHOP
```
Report
a routine report filed through BLM
Where
over COL
Time
00:07 UTC
Height
at 15,000 ft
Aircraft
CRJ7
Turbulence
moderate chop
A21N at 18,000 ft, 13 nm south, 8:38 pm EDT (00:38 UTC): moderate clear-air turbulence. 259 nm along the route, 13 nm south of the line.
as filed, and in English
```
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
```
Report
a routine report filed through PTW
Where
over PTW
Time
00:38 UTC
Height
at 18,000 ft
Aircraft
A21N
Turbulence
moderate clear-air turbulence
E75L at 20,000 ft, 44 nm south, 8:41 pm EDT (00:41 UTC): moderate turbulence above 20,000 ft. 269 nm along the route, 44 nm south of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 0041/FL200/TP E75L/TB MOD 200
```
Report
a routine report filed through ILG
Where
over DQO
Time
00:41 UTC
Height
at 20,000 ft
Aircraft
E75L
Turbulence
moderate at 20,000 ft
E145 at 12,000 ft, 12 nm south, 8:43 pm EDT (00:43 UTC): moderate turbulence. 288 nm along the route, 12 nm south of the line.
as filed, and in English
```
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
```
Report
a routine report filed through LNS
Where
over LRP
Time
00:43 UTC
Height
at 12,000 ft
Aircraft
E145
Turbulence
continuous moderate
E170 at 22,500 ft, 39 nm south, 7:44 pm EDT (23:44 UTC): moderate clear-air turbulence from 18,000 ft to 22,500 ft, remarks: during the descent FRDMM7 star. 408 nm along the route, 39 nm south of the line.
as filed, and in English
```
OKV UA /OV ESL100020/TM 2344/FL225/TP E170/TB CONS MOD CAT 180-225/RM DURD FRDMM7 STAR
```
Report
a routine report filed through OKV
Where
20 nm east (100°) of ESL
Time
23:44 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous moderate clear-air turbulence from 18,000 ft to 22,500 ft
Remarks
during the descent FRDMM7 star
A321 at 30,000 ft, 15 nm northwest, 7:49 pm EDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 428 nm along the route, 15 nm northwest of the line.
as filed, and in English
```
2G9 UA /OV IHD/TM 2349/FL300/TP A321/TB MOD 300/RM ZOB
```
Report
a routine report filed through 2G9
Where
over IHD
Time
23:49 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
moderate at 30,000 ft
Remarks
zob
UAL2761 at 31,000 ft, 20 nm south, 7:57 pm EDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 458 nm along the route, 20 nm south of the line.
as filed, and in English
```
ARP UAL2761 3917N 07949W 2357 F310 218/058KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 10 forecast points nearest it (ACK, BDL, JFK, AVP, PSB, AGC, EKN, CRW, CVG, 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
4,500 ft	180° at 7 kt	+1 kt	13 °C	119 kt	6 h 16 min	4:19 am EDT (08:19 UTC)
6,500 ft	220° at 9 kt	+6 kt	12 °C	114 kt	6 h 33 min	4:36 am EDT (08:36 UTC)
8,500 ft	250° at 10 kt	+9 kt	9 °C	111 kt	6 h 43 min	4:46 am EDT (08:46 UTC)
10,500 ft	270° at 11 kt	+11 kt	6 °C	109 kt	6 h 51 min	4:54 am EDT (08:54 UTC)
12,500 ft	270° at 13 kt	+12 kt	3 °C	108 kt	6 h 54 min	4:57 am EDT (08:57 UTC)
14,500 ft	270° at 16 kt	+15 kt	-2 °C	105 kt	7 h 06 min	5:09 am EDT (09:09 UTC)
16,500 ft	260° at 18 kt	+18 kt	-6 °C	102 kt	7 h 19 min	5:22 am EDT (09:22 UTC)
18,000 ft FL180	260° at 21 kt	+20 kt	-9 °C	100 kt	7 h 28 min	5:31 am EDT (09:31 UTC)
24,000 ft FL240	250° at 26 kt	+25 kt	-20 °C	95 kt	7 h 51 min	5:54 am EDT (09:54 UTC)
30,000 ft FL300	240° at 47 kt	+43 kt	-32 °C	77 kt	9 h 41 min	7:44 am EDT (11:44 UTC)
34,000 ft FL340	240° at 54 kt	+51 kt	-40 °C	69 kt	10 h 49 min	8:52 am EDT (12:52 UTC)
39,000 ft FL390	240° at 56 kt	+53 kt	-50 °C	67 kt	11 h 08 min	9:11 am EDT (13:11 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
ACK	used from 0 nm out; 25 nm from the line	150/19	170/30 8°	210/31 9°	230/42 3°	250/44 -7°	250/50 -17°	240/62 -32°	250/71 -42°	250/86 -55°
BDL	used from 50 nm out; 70 nm from the line	140/28	180/29 10°	220/38 8°	250/30 3°	250/40 -8°	240/46 -18°	240/58 -32°	240/80 -41°	240/89 -55°
JFK	used from 99 nm out; 48 nm from the line	140/43	170/35 13°	230/18 9°	250/25 5°	240/40 -7°	230/50 -17°	230/75 -31°	230/78 -41°	230/88 -53°
AVP	used from 249 nm out; 59 nm from the line	110/36	190/34 13°	230/11 8°	230/16 4°	230/26 -8°	220/40 -19°	230/73 -33°	230/98 -41°	230/87 -51°
PSB	used from 298 nm out; 64 nm from the line		260/13 13°	220/12 8°	220/11 4°	230/27 -11°	210/31 -21°	220/73 -32°	220/75 -40°	230/66 -50°
AGC	used from 398 nm out; 51 nm from the line	140/12	350/10 12°	L/V 9°	L/V 3°	200/11 -11°	220/21 -22°	220/47 -33°	230/51 -39°	230/45 -48°
EKN	used from 448 nm out; 42 nm from the line		270/18 13°	310/5 7°	140/7 3°	210/16 -9°	220/41 -20°	210/57 -32°	220/57 -38°	230/49 -47°
CRW	used from 497 nm out; 60 nm from the line	320/16	310/16 12°	320/12 7°	320/12 2°	330/15 -11°	280/11 -22°	230/26 -30°	240/33 -37°	240/37 -47°
CVG	used from 597 nm out; 69 nm from the line	350/13	340/20 13°	340/22 8°	350/30 3°	340/30 -9°	340/38 -21°	330/37 -35°	320/38 -40°	310/35 -47°
LOU	used from 696 nm out; 21 nm from the line	320/15	340/24 14°	330/28 9°	340/34 4°	340/37 -9°	340/42 -20°	320/39 -35°	320/45 -39°	330/40 -47°

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
ACK Nantucket, MA	departure	marginal VFR Sky: a broken layer at 2,600 feet, overcast at 3,500 feet Weather: light rain	from the east (100°) at 15 knots	9 mi	2,600 ft	46 ft	9:53 pm EDT (01:53 UTC)
MVY Vineyard Haven, MA	20 nm out, 13 nm northwest of the line, tower	marginal VFR Sky: a few clouds at 600 feet, a broken layer at 1,000 feet, overcast at 2,200 feet Weather: rain	from the east (090°) at 13 knots, gusting to 21	10+ mi	1,000 ft	66 ft	01:53 UTC
JPX East Hampton, NY	99 nm out, 1 nm southwest of the line, tower	IFR Sky: overcast at 500 feet Weather: heavy rain	from the north-northeast (030°) at 7 knots, gusting to 17	4 mi	500 ft	54 ft	01:55 UTC
EWR Newark, NJ	189 nm out, 1 nm northwest of the line, tower	IFR Sky: a broken layer at 900 feet, overcast at 1,300 feet Weather: light rain, mist	from the north-northeast (020°) at 14 knots	6 mi	900 ft	17 ft	01:51 UTC
RDG Reading, PA	269 nm out, 5 nm west of the line, tower	IFR Sky: overcast at 800 feet	from the northeast (040°) at 7 knots	10+ mi	800 ft	343 ft	01:54 UTC
CXY Harrisburg, PA	318 nm out, 3 nm east of the line, tower	IFR Sky: overcast at 700 feet Weather: mist	from the northeast (050°) at 7 knots	4 mi	700 ft	346 ft	01:56 UTC
HMZ Bedford, PA	388 nm out, 12 nm northwest of the line	marginal VFR Sky: overcast at 1,100 feet	from the north (350°) at 3 knots	10+ mi	1,100 ft	1,161 ft	01:55 UTC
MGW Morgantown, WV	458 nm out, 4 nm northwest of the line, tower	marginal VFR Sky: overcast at 1,800 feet Weather: light rain	calm	8 mi	1,800 ft	1,243 ft	01:53 UTC
PKB Parkersburg, WV	537 nm out, 6 nm northeast of the line, tower	IFR Sky: a broken layer at 600 feet, overcast at 2,700 feet Weather: rain, mist	from the northwest (320°) at 3 knots	4 mi	600 ft	858 ft	01:53 UTC
PMH Portsmouth, OH	607 nm out, 5 nm southeast of the line	marginal VFR Sky: overcast at 1,000 feet	from the northwest (310°) at 4 knots	10+ mi	1,000 ft	663 ft	01:55 UTC
FFT Frankfort, KY	706 nm out, 13 nm south of the line	reported, no category	calm		none	812 ft	01:53 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 1,243 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, 4:19 am EDT (08:19 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 ACK, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, light rain, a few clouds at 2,400 feet, scattered clouds at 3,500 feet and more above
From Sun 10:00 pm EDT (02:00 UTC): wind from the east at 14 knots, gusting to 24, visibility 2 miles, rain, mist, overcast at 1,000 feet
From Mon 1:00 am EDT (05:00 UTC): wind from the east at 16 knots, gusting to 23, visibility 3 miles, rain, mist, overcast at 300 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the east-northeast at 15 knots, visibility 1 mile, light rain showers, mist, overcast at 300 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 15 knots, visibility ¾ mile, mist, overcast at 300 feet
30% chance between Mon 5:00 am EDT (09:00 UTC) and 6:00 am EDT (10:00 UTC): visibility ¾ mile, light rain showers, mist, overcast at 100 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northeast at 15 knots, visibility more than 6 miles, a broken layer at 800 feet
From Mon 4:00 pm EDT (20:00 UTC): wind from the north at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 3,000 feet

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

5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 2 nm from the route, 179 nm along the route · security · until 20 October · ZNY

Daylight

Sunset at ACK 6:04 pm EDT (22:04 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 Northeast · 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: Nantucket Memorial, Louisville Muhammad Ali International.