Plan a flight · Mon 6:24 am CDT (11:24 UTC)

Green Bay/Austin Straubel International to John F Kennedy International GRB → JFK

674 nautical miles (776 statute miles) east on a straight line, true course 105°, about 107° magnetic at the departure end (variation 2W). At 120 knots that is 3 h 59 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 11:23 am EDT (15:23 UTC). Right now GRB is VFR, wind calm; JFK is marginal VFR, wind from the north (010°) at 8 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: 2 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). Near the route, 139 nm along 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 506 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 426 to 595 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 99 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 GRB.

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

urgent SF50 descending, 3 nm southwest, 5:50 am CDT (10:50 UTC): light turbulence, overcast above 1,200 ft, remarks: during the descent runway 5. 644 nm along the route, 3 nm southwest of the line.
as filed, and in English
```
MMU UUA /OV MMU/TM 1050/FLDURD/TP SF50/SK OVC012/TB LGT/RM DURD RWY 5
```
Report
an urgent report filed through MMU
Where
over MMU
Time
10:50 UTC
Height
during the descent
Aircraft
SF50
Sky
overcast from 1,200 ft
Turbulence
light
Remarks
during the descent runway 5
CL35 at 6,000 ft, 49 nm south, 5:47 am CDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 218 nm along the route, 49 nm south of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
B739 at 9,000 ft, 45 nm south, 5:33 am CDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. 238 nm along the route, 45 nm south of the line.
as filed, and in English
```
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through DTW
Where
26 nm northeast (033°) of DXO
Time
10:33 UTC
Height
at 9,000 ft
Aircraft
B739
Sky
clear
Wind
from 295° at 13 knots
Turbulence
none
Icing
none
Remarks
during the descent
AC90 at 2,000 ft, 33 nm southwest, 6:05 am CDT (11:05 UTC): overcast from 2,000 ft to 4,000 ft. 377 nm along the route, 33 nm southwest of the line.
as filed, and in English
```
ERI UA /OV JUNOG/TM 1105/FL020/TP AC90/SK OVC020-TOP040
```
Report
a routine report filed through ERI
Where
junog
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Sky
overcast from 2,000 ft, tops 4,000 ft
AC90 at 2,000 ft, 31 nm southwest, 6:05 am CDT (11:05 UTC): remarks: bases reported at at 2,000 ft. 377 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
ERI UA /OV KERI/TM 1105/FL020/TP AC90/RM BASES REPORTED AT 020
```
Report
a routine report filed through ERI
Where
over KERI
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Remarks
bases reported at at 2,000 ft
B738 climbing, 40 nm north, 5:20 am CDT (10:20 UTC): overcast from 2,500 ft to 4,200 ft; scattered clouds above 700 ft. 416 nm along the route, 40 nm north of the line.
as filed, and in English
```
BUF UA /OV BUF/TM 1020/FLDURC/TP B738/SK SCT007 OVC025 TOPS042
```
Report
a routine report filed through BUF
Where
over BUF
Time
10:20 UTC
Height
during the climb
Aircraft
B738
Sky
SCT007 OVC025 TOPS042
C208 at 2,700 ft, 22 nm southwest, 5:01 am CDT (10:01 UTC): remarks: zob. 446 nm along the route, 22 nm southwest of the line.
as filed, and in English
```
BFD UA /OV BFD/TM 1001/FL027/TP C208/SK BASE027 TOP043/RM ZOB
```
Report
a routine report filed through BFD
Where
over BFD
Time
10:01 UTC
Height
at 2,700 ft
Aircraft
C208
Sky
BASE027 TOP043
Remarks
zob
A21N at 35,000 ft, 36 nm north, 3:52 am CDT (08:52 UTC): light to moderate chop turbulence, remarks: zob. 466 nm along the route, 36 nm north of the line.
as filed, and in English
```
ROC UA /OV GEE190015/TM 0852/FL350/TP A21N/TB LGHT-MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
15 nm south (190°) of GEE
Time
08:52 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
lght-mod chop
Remarks
zob
C68A at 900 ft, 8 nm northeast, 6:03 am CDT (11:03 UTC): overcast above 900 ft, remarks: during the climb. At the destination end, 8 nm northeast of the line.
as filed, and in English
```
TEB UA /OV KTEB001002/TM 1103/FL009/TP C68A/SK OVC009/RM DURC
```
Report
a routine report filed through TEB
Where
2 nm north (001°) of KTEB
Time
11:03 UTC
Height
at 900 ft
Aircraft
C68A
Sky
overcast from 900 ft
Remarks
during the climb
E175 descending, 7 nm northeast, 5:51 am CDT (10:51 UTC): remarks: base 90,000 ft feet. At the destination end, 7 nm northeast of the line.
as filed, and in English
```
LGA UA /OV FINAL RWY 04/TM 1051/FLDURD/TP E175/RM BASE 900 FEET.
```
Report
a routine report filed through LGA
Where
final runway 04
Time
10:51 UTC
Height
during the descent
Aircraft
E175
Remarks
base 90,000 ft feet
PC12 at 2,300 ft, 24 nm north, 6:13 am CDT (11:13 UTC): no turbulence, overcast from 700 ft to 2,300 ft. At the destination end, 24 nm north of the line.
as filed, and in English
```
HPN UA /OV HPN130006/TM 1113/FL023/TP PC12/SK OVC007-TOP023/TB NEG
```
Report
a routine report filed through HPN
Where
6 nm southeast (130°) of HPN
Time
11:13 UTC
Height
at 2,300 ft
Aircraft
PC12
Sky
overcast from 700 ft, tops 2,300 ft
Turbulence
none
A320 climbing, 6 nm southeast, 5:42 am CDT (10:42 UTC): a routine report with nothing remarked on. At the destination end, 6 nm southeast of the line.
as filed, and in English
```
JFK UA /OV JFK150005/TM 1042/FLDURC/TP A320/SK 010-TOP024
```
Report
a routine report filed through JFK
Where
5 nm southeast (150°) of JFK
Time
10:42 UTC
Height
during the climb
Aircraft
A320
Sky
010-TOP024
B737 climbing, 32 nm east, 5:05 am CDT (10:05 UTC): a routine report with nothing remarked on. At the destination end, 32 nm east of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 1005/FLDURC/TP B737/SK BASES 009
```
Report
a routine report filed through ISP
Where
over ISP
Time
10:05 UTC
Height
during the climb
Aircraft
B737
Sky
bases 900 ft

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 7 forecast points nearest it (GRB, TVC, 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	300° at 15 kt	−15 kt		135 kt	5 h	12:24 pm EDT (16:24 UTC)
5,500 ft	320° at 14 kt	−12 kt	12 °C	132 kt	5 h 06 min	12:30 pm EDT (16:30 UTC)
7,500 ft	320° at 14 kt	−13 kt	11 °C	133 kt	5 h 04 min	12:28 pm EDT (16:28 UTC)
9,500 ft	310° at 15 kt	−15 kt	7 °C	135 kt	5 h	12:24 pm EDT (16:24 UTC)
11,500 ft	310° at 19 kt	−18 kt	4 °C	138 kt	4 h 53 min	12:17 pm EDT (16:17 UTC)
13,500 ft	310° at 21 kt	−20 kt	0 °C	140 kt	4 h 49 min	12:13 pm EDT (16:13 UTC)
15,500 ft	310° at 23 kt	−22 kt	-5 °C	142 kt	4 h 45 min	12:09 pm EDT (16:09 UTC)
17,500 ft	310° at 25 kt	−24 kt	-9 °C	144 kt	4 h 41 min	12:05 pm EDT (16:05 UTC)
18,000 ft FL180	310° at 26 kt	−25 kt	-10 °C	145 kt	4 h 39 min	12:03 pm EDT (16:03 UTC)
24,000 ft FL240	310° at 30 kt	−28 kt	-21 °C	148 kt	4 h 33 min	11:57 am EDT (15:57 UTC)
30,000 ft FL300	310° at 34 kt	−32 kt	-37 °C	152 kt	4 h 26 min	11:50 am EDT (15:50 UTC)
34,000 ft FL340	300° at 43 kt	−42 kt	-45 °C	162 kt	4 h 10 min	11:34 am EDT (15:34 UTC)
39,000 ft FL390	300° at 51 kt	−49 kt	-51 °C	169 kt	3 h 59 min	11:23 am EDT (15:23 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
GRB	used from 0 nm out; 25 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
TVC	used from 50 nm out; 52 nm from the line	270/31	280/23 15°	260/22 8°	260/29 4°	280/29 -11°	280/42 -21°	270/42 -36°	270/54 -47°	290/67 -51°
CLE	used from 248 nm out; 105 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
BUF	used from 347 nm out; 60 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
PSB	used from 446 nm out; 66 nm from the line		020/21 12°	360/28 7°	360/29 1°	350/33 -10°	350/42 -22°	350/49 -37°	340/63 -43°	350/39 -52°
AVP	used from 496 nm out; 56 nm from the line	010/20	020/24 11°	360/19 8°	350/23 2°	320/24 -11°	330/25 -22°	330/27 -37°	310/28 -42°	290/30 -50°
JFK	used from 644 nm out; 15 nm from the line	020/25	290/9 12°	300/12 7°	320/14 3°	290/17 -10°	240/27 -21°	240/44 -36°	240/53 -41°	240/51 -50°

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
GRB Green Bay, WI	departure	VFR	calm	10+ mi	none	695 ft	5:53 am CDT (10:53 UTC)
MTW Manitowoc, WI	20 nm out, 16 nm south of the line	VFR	from the southwest (220°) at 3 knots	10+ mi	none	650 ft	10:56 UTC
LDM Ludington, MI	79 nm out, 10 nm south of the line	VFR	from the south (190°) at 9 knots	10+ mi	none	646 ft	11:15 UTC
MBS Saginaw, MI	188 nm out, 7 nm southwest of the line, tower	VFR Weather: mist	from the south-southwest (210°) at 6 knots	6 mi	none	668 ft	10:53 UTC
CFS Caro, MI	208 nm out, 3 nm southeast of the line	marginal VFR Weather: mist	from the south-southwest (200°) at 3 knots	4 mi	none	704 ft	11:15 UTC
CYQS St Thomas,	317 nm out, 8 nm south of the line	no report just now				776 ft
ELZ Wellsville, NY	466 nm out, 6 nm north of the line	IFR Sky: a broken layer at 500 feet, a broken layer at 900 feet, overcast at 1,300 feet Weather: mist	from the west-northwest (300°) at 6 knots	5 mi	500 ft	2,124 ft	11:19 UTC
IPT Williamsport, PA	525 nm out, 25 nm south of the line, tower	marginal VFR Sky: overcast at 1,800 feet	from the west (270°) at 8 knots	10+ mi	1,800 ft	528 ft	10:54 UTC
AVP Wilkes-Barre/Scranton, PA	575 nm out, 3 nm northeast of the line, tower	marginal VFR Sky: overcast at 1,200 feet	calm	10+ mi	1,200 ft	961 ft	10:54 UTC
MMU Morristown, NJ	644 nm out, 3 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the north (010°) at 6 knots	10+ mi	1,100 ft	186 ft	10:45 UTC
JFK New York, NY	destination	marginal VFR Sky: overcast at 1,100 feet	from the north (010°) at 8 knots	10+ mi	1,100 ft	13 ft	6:51 am EDT (10:51 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 JFK when you get there the forecast at the estimated arrival, 11:23 am EDT (15:23 UTC)

Wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet marginal VFR

The whole forecast for JFK

From Mon 8:00 am EDT (12:00 UTC): wind from the north at 12 knots, visibility more than 6 miles, a broken layer at 1,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 9 knots, visibility more than 6 miles, a few clouds at 5,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northwest at 4 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
From Tue 9:00 am EDT (13:00 UTC): wind from the south-southeast at 11 knots, visibility more than 6 miles, scattered clouds at 3,500 feet

The forecast for GRB, the departure

From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
From Mon 5:00 am CDT (10:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 20,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
From Mon 5:00 pm CDT (22:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, scattered clouds at 15,000 feet
30% chance between Mon 6:00 pm CDT (23:00 UTC) and 10:00 pm CDT (03:00 UTC): light rain showers, a broken layer at 6,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, scattered clouds at 2,000 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, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at GRB 6:13 pm CDT (23:13 UTC), at JFK 6:19 pm EDT (22:19 UTC) (civil twilight ends 6:47 pm EDT (22:47 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: Green Bay/Austin Straubel International, John F Kennedy International.