Plan a flight · Mon 10:37 am CDT (15:37 UTC)

LA Crosse Regional to Long Island Mac Arthur Airport LSE → ISP

825 nautical miles (949 statute miles) east on a straight line, true course 097°, about 098° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 48 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 4:25 pm EDT (20:25 UTC). Right now LSE is VFR, wind from the south-southwest (200°) at 7 knots; ISP is marginal VFR, wind from the north (010°) at 10 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 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the route from 497 to 676 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 547 to 716 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the last 209 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). Over the last 0 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 LSE.

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

E170 at 28,000 ft, 27 nm south, 8:10 am CDT (13:10 UTC): moderate chop turbulence. 258 nm along the route, 27 nm south of the line.
as filed, and in English
```
GRR UA /OV VIO/TM 1310/FL280/TP E170/TB OCNL MOD CHOP
```
Report
a routine report filed through GRR
Where
over VIO
Time
13:10 UTC
Height
at 28,000 ft
Aircraft
E170
Turbulence
occasional moderate chop
PC12 at 20,000 ft, 34 nm south, 8:27 am CDT (13:27 UTC): no turbulence. 50 nm along the route, 34 nm south of the line.
as filed, and in English
```
LNR UA /OV 0WI4/TM 1327/FL200/TP PC12/TB NEG
```
Report
a routine report filed through LNR
Where
over 0WI4
Time
13:27 UTC
Height
at 20,000 ft
Aircraft
PC12
Turbulence
none
C510 at 17,000 ft, 34 nm south, 8:27 am CDT (13:27 UTC): no turbulence. 50 nm along the route, 34 nm south of the line.
as filed, and in English
```
LNR UA /OV LNR/TM 1327/FL170/TP C510/TB NEG
```
Report
a routine report filed through LNR
Where
over LNR
Time
13:27 UTC
Height
at 17,000 ft
Aircraft
C510
Turbulence
none
B39M at 34,000 ft, 41 nm south, 9:01 am CDT (14:01 UTC): no turbulence. 209 nm along the route, 41 nm south of the line.
as filed, and in English
```
BIV UA /OV PMM300030/TM 1401/FL340/TP B39M/TB NEG
```
Report
a routine report filed through BIV
Where
30 nm northwest (300°) of PMM
Time
14:01 UTC
Height
at 34,000 ft
Aircraft
B39M
Turbulence
none
B738 at 34,000 ft, 15 nm south, 8:18 am CDT (13:18 UTC): light chop turbulence from 32,000 ft to 34,000 ft, remarks: zob. 338 nm along the route, 15 nm south of the line.
as filed, and in English
```
FNT UA /OV FNT179015/TM 1318/FL340/TP B738/TB LGT CHOP 340-320/RM ZOB
```
Report
a routine report filed through FNT
Where
15 nm south (179°) of FNT
Time
13:18 UTC
Height
at 34,000 ft
Aircraft
B738
Turbulence
light chop from 34,000 ft to 32,000 ft
Remarks
zob
E55P at 3,000 ft, 42 nm south, 8:41 am CDT (13:41 UTC): no turbulence, overcast from 20,000 ft to 30,000 ft, nearby, remarks: during the climb. 348 nm along the route, 42 nm south of the line.
as filed, and in English
```
DTW UA /OV YIP/TM 1341/FL030/TP E55P/SK 002 OVC 003/WX VCM AT 030/TB NEG/RM DURC
```
Report
a routine report filed through DTW
Where
over YIP
Time
13:41 UTC
Height
at 3,000 ft
Aircraft
E55P
Sky
at 200 ft overcast at 300 ft
Weather
nearby m, at, at 3,000 ft
Turbulence
none
Remarks
during the climb
C172 at 3,000 ft, 45 nm south, 7:41 am CDT (12:41 UTC): overcast from 1,000 ft to 1,500 ft; clear from 1,500 ft to 60,000 ft, dust storm. 348 nm along the route, 45 nm south of the line.
as filed, and in English
```
DTW UA /OV DXO 270010/TM 1241/FL030/TP C172/SK 010 OVC 015/WX VIS 1 MI BLO CLOUDS CLR ABV
```
Report
a routine report filed through DTW
Where
10 nm west (270°) of DXO
Time
12:41 UTC
Height
at 3,000 ft
Aircraft
C172
Sky
at 1,000 ft overcast at 1,500 ft
Weather
visibility, 1, shallow, below, cl ou dust storm, clear, above
B739 descending, 42 nm south, 9:11 am CDT (14:11 UTC): a routine report with nothing remarked on. 358 nm along the route, 42 nm south of the line.
as filed, and in English
```
DTW UA /OV 22R/TM 1411/FLDURD/TP B739/SK 006 FIELD IN SIGHT
```
Report
a routine report filed through DTW
Where
over 22R
Time
14:11 UTC
Height
during the descent
Aircraft
B739
Sky
at 600 ft field in sight
UAL513 at 34,000 ft, 27 nm north, 7:52 am CDT (12:52 UTC): no turbulence, wind 306° at 57 knots. 408 nm along the route, 27 nm north of the line.
as filed, and in English
```
ARP UAL513 4310N 08158W 1252 F340 306/057KT TB NONE SK IC
```
Report
a routine report filed through ARP
H25B at 2,800 ft, 17 nm south, 9:15 am CDT (14:15 UTC): remarks: bases reported ar at 2,800 ft. 497 nm along the route, 17 nm south of the line.
as filed, and in English
```
ERI UA /OV KERI/TM 1415/FL028/TP H25B/RM BASES REPORTED AR 028
```
Report
a routine report filed through ERI
Where
over KERI
Time
14:15 UTC
Height
at 2,800 ft
Aircraft
H25B
Remarks
bases reported ar at 2,800 ft
PA46 climbing, 27 nm south, 8:03 am CDT (13:03 UTC): a routine report with nothing remarked on. 497 nm along the route, 27 nm south of the line.
as filed, and in English
```
BUF UA /OV ERI180005/TM 1303/FLDURC/TP PA46/SK BASES 013 TOPS 035
```
Report
a routine report filed through BUF
Where
5 nm south (180°) of ERI
Time
13:03 UTC
Height
during the climb
Aircraft
PA46
Sky
bases 1,300 ft tops 3,500 ft
CRJ9 at 1,100 ft, 49 nm north, 8:26 am CDT (13:26 UTC): remarks: during the descent, ils runway 23. 547 nm along the route, 49 nm north of the line.
as filed, and in English
```
BUF UA /OV KBUF/TM 1326/FL011/TP CRJ9/SK BASES 600 AGL/RM DURD, ILS RWY 23
```
Report
a routine report filed through BUF
Where
over KBUF
Time
13:26 UTC
Height
at 1,100 ft
Aircraft
CRJ9
Sky
bases 60,000 ft above ground
Remarks
during the descent, ils runway 23
CRJ9 at 1,300 ft, 44 nm north, 8:13 am CDT (13:13 UTC): a routine report with nothing remarked on. 547 nm along the route, 44 nm north of the line.
as filed, and in English
```
BUF UA /OV PLAZZ/TM 1313/FL013/TP CRJ9/SK BNK013 TOPS 033
```
Report
a routine report filed through BUF
Where
plazz
Time
13:13 UTC
Height
at 1,300 ft
Aircraft
CRJ9
Sky
BNK013 tops 3,300 ft
B737 at 1,100 ft, 49 nm north, 7:45 am CDT (12:45 UTC): remarks: during the descent, ils runway 23. 547 nm along the route, 49 nm north of the line.
as filed, and in English
```
BUF UA /OV KBUF/TM 1245/FL011/TP B737/SK B011/RM DURD, ILS RWY 23
```
Report
a routine report filed through BUF
Where
over KBUF
Time
12:45 UTC
Height
at 1,100 ft
Aircraft
B737
Sky
B011
Remarks
during the descent, ils runway 23

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 8 forecast points nearest it (LSE, GRB, MKG, CLE, BUF, PSB, AVP, JFK). 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	270° at 17 kt	−17 kt		137 kt	6 h 01 min	5:38 pm EDT (21:38 UTC)
5,500 ft	280° at 18 kt	−18 kt	14 °C	138 kt	5 h 59 min	5:36 pm EDT (21:36 UTC)
7,500 ft	280° at 20 kt	−21 kt	12 °C	141 kt	5 h 51 min	5:28 pm EDT (21:28 UTC)
9,500 ft	290° at 22 kt	−23 kt	8 °C	143 kt	5 h 46 min	5:23 pm EDT (21:23 UTC)
11,500 ft	300° at 23 kt	−23 kt	5 °C	143 kt	5 h 46 min	5:23 pm EDT (21:23 UTC)
13,500 ft	300° at 23 kt	−23 kt	1 °C	143 kt	5 h 46 min	5:23 pm EDT (21:23 UTC)
15,500 ft	300° at 24 kt	−24 kt	-3 °C	144 kt	5 h 44 min	5:21 pm EDT (21:21 UTC)
17,500 ft	300° at 25 kt	−25 kt	-8 °C	145 kt	5 h 41 min	5:18 pm EDT (21:18 UTC)
18,000 ft FL180	300° at 25 kt	−25 kt	-9 °C	145 kt	5 h 41 min	5:18 pm EDT (21:18 UTC)
24,000 ft FL240	290° at 30 kt	−30 kt	-21 °C	150 kt	5 h 30 min	5:07 pm EDT (21:07 UTC)
30,000 ft FL300	290° at 36 kt	−37 kt	-37 °C	157 kt	5 h 15 min	4:52 pm EDT (20:52 UTC)
34,000 ft FL340	300° at 44 kt	−43 kt	-43 °C	163 kt	5 h 04 min	4:41 pm EDT (20:41 UTC)
39,000 ft FL390	300° at 55 kt	−52 kt	-49 °C	172 kt	4 h 48 min	4:25 pm EDT (20:25 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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
LSE	used from 0 nm out; 25 nm from the line	240/16	230/27 20°	250/35 12°	260/28 5°	260/30 -9°	260/37 -21°	260/38 -36°	280/44 -37°	280/52 -47°
GRB	used from 99 nm out; 54 nm from the line	260/10	240/27 16°	260/31 10°	270/25 5°	280/31 -10°	280/35 -22°	270/46 -37°	290/43 -40°	300/64 -48°
MKG	used from 149 nm out; 50 nm from the line	240/27	240/26 15°	270/27 9°	280/27 5°	280/28 -9°	280/32 -22°	270/41 -38°	290/44 -41°	300/60 -48°
CLE	used from 348 nm out; 96 nm from the line	280/17	270/17 14°	280/22 10°	290/26 4°	290/25 -8°	280/31 -21°	280/35 -36°	280/43 -44°	300/53 -48°
BUF	used from 497 nm out; 55 nm from the line	270/25	300/28 14°	300/29 8°	310/29 2°	300/30 -9°	290/33 -21°	290/44 -37°	290/56 -47°	300/62 -51°
PSB	used from 596 nm out; 64 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AVP	used from 646 nm out; 32 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -51°
JFK	used from 745 nm out; 34 nm from the line	360/20	340/23 11°	340/26 8°	350/26 3°	350/30 -8°	350/36 -21°	350/52 -36°	350/54 -44°	320/45 -53°

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
LSE La Crosse, WI	departure	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	655 ft	9:53 am CDT (14:53 UTC)
CMY Sparta, WI	20 nm out, 8 nm north of the line, tower	VFR	from the southwest (220°) at 8 knots	10+ mi	none	839 ft	14:55 UTC
OSH Oshkosh, WI	119 nm out, 22 nm north of the line, tower	VFR	from the south-southwest (200°) at 11 knots, gusting to 15	10+ mi	none	808 ft	14:53 UTC
MKG Muskegon, MI	219 nm out, 11 nm south of the line, tower	VFR Sky: a broken layer at 25,000 feet	from the south (190°) at 12 knots, gusting to 19	10+ mi	25,000 ft	628 ft	14:55 UTC
FNT Flint, MI	328 nm out, 4 nm southeast of the line, tower	VFR	from the south-southwest (210°) at 9 knots	10+ mi	none	782 ft	14:53 UTC
PTK Pontiac, MI	348 nm out, 16 nm south of the line, tower	VFR Sky: a broken layer at 20,000 feet	from the southwest (220°) at 4 knots	10+ mi	20,000 ft	980 ft	14:53 UTC
CYQS St Thomas,	447 nm out, 13 nm north of the line	no report just now				776 ft
ERI Erie, PA	497 nm out, 17 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
ELZ Wellsville, NY	596 nm out, 11 nm north of the line	IFR Sky: overcast at 600 feet	from the west-northwest (290°) at 9 knots	10+ mi	600 ft	2,124 ft	14:56 UTC
AVP Wilkes-Barre/Scranton, PA	706 nm out, 7 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,200 feet	from the northwest (310°) at 7 knots	10+ mi	1,200 ft	961 ft	14:54 UTC
HPN White Plains, NY	795 nm out, 7 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,600 feet, overcast at 3,900 feet	from the north-northwest (330°) at 9 knots	10+ mi	1,600 ft	439 ft	15:04 UTC
ISP New York, NY	destination	marginal VFR Sky: a few clouds at 1,400 feet, a broken layer at 2,700 feet	from the north (010°) at 10 knots	10+ mi	2,700 ft	98 ft	10:56 am EDT (14:56 UTC)

The highest airport on this list sits at 2,124 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ISP when you get there the forecast at the estimated arrival, 4:25 pm EDT (20:25 UTC)

Wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 4,000 feet VFR

The whole forecast for ISP

From Mon 11:00 am EDT (15:00 UTC): wind from the north at 11 knots, gusting to 20, visibility more than 6 miles, a broken layer at 1,500 feet
At times between Mon 12:00 pm EDT (16:00 UTC) and 1:00 pm EDT (17:00 UTC): scattered clouds at 1,500 feet, a broken layer at 3,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet

The forecast for LSE, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
From Tue 1:00 am CDT (06:00 UTC): wind from the northwest at 9 knots, visibility more than 6 miles, scattered clouds at 10,000 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 14 nm from the route, 785 nm along the route · security · until 20 October · ZNY

Daylight

Sunset at LSE 6:26 pm CDT (23:26 UTC), at ISP 6:17 pm EDT (22:17 UTC) (civil twilight ends 6:44 pm EDT (22:44 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 upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the Northeast · 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: LA Crosse Regional, Long Island Mac Arthur Airport.