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

Green Bay/Austin Straubel International to Akron-Canton Regional GRB → CAK

364 nautical miles (419 statute miles) southeast on a straight line, true course 124°, about 126° magnetic at the departure end (variation 2W). At 120 knots that is 1 h 59 min at the quickest height in today's winds (39,000 ft, a 64-knot tailwind), arriving about 1:01 am EDT (05:01 UTC), after sunset at the destination. Right now GRB is VFR, wind from the south-southwest (200°) at 6 knots; CAK is marginal VFR, wind from the northwest (320°) 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: 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 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 138 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

A320 at 33,000 ft, 34 nm southwest, 7:36 pm CDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 187 nm along the route, 34 nm southwest of the line.
as filed, and in English
```
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
```
Report
a routine report filed through JXN
Where
30 nm west (280°) of JXN
Time
00:36 UTC
Height
at 33,000 ft
Aircraft
A320
Turbulence
occasional moderate at 33,000 ft
Remarks
zob
A21N at 31,000 ft, 41 nm northeast, 7:39 pm CDT (00:39 UTC): light turbulence above 31,000 ft, remarks: zob. 148 nm along the route, 41 nm northeast of the line.
as filed, and in English
```
MOP UA /OV MOP/TM 0039/FL310/TP A21N/TB CONS LGT 310/RM ZOB
```
Report
a routine report filed through MOP
Where
over MOP
Time
00:39 UTC
Height
at 31,000 ft
Aircraft
A21N
Turbulence
continuous light at 31,000 ft
Remarks
zob
B38M at 31,000 ft, 47 nm southwest, 7:04 pm CDT (00:04 UTC): light chop turbulence up to 31,000 ft. 167 nm along the route, 47 nm southwest of the line.
as filed, and in English
```
AZO UA /OV AZO/TM 0004/FL310/TP B38M/TB CONS LGT CHOP 310 BLO
```
Report
a routine report filed through AZO
Where
over AZO
Time
00:04 UTC
Height
at 31,000 ft
Aircraft
B38M
Turbulence
continuous light chop at 31,000 ft below
E170 at 21,000 ft, 11 nm southwest, 8:07 pm CDT (01:07 UTC): light chop turbulence, remarks: during the climb zob. 197 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
LAN UA /OV LAN180020/TM 0107/FL210/TP E170/TB LGHT CHOP/RM DURC ZOB
```
Report
a routine report filed through LAN
Where
20 nm south (180°) of LAN
Time
01:07 UTC
Height
at 21,000 ft
Aircraft
E170
Turbulence
lght chop
Remarks
during the climb zob
A320 descending, 35 nm northeast, 9:09 pm CDT (02:09 UTC): overcast from 1,600 ft to 3,000 ft, remarks: on final runway 18 fnt. 207 nm along the route, 35 nm northeast of the line.
as filed, and in English
```
FNT UA /OV FNT/TM 0209/FLDURD/TP A320/SK OVC016 - TOP030/RM ON FINAL RY18 FNT
```
Report
a routine report filed through FNT
Where
over FNT
Time
02:09 UTC
Height
during the descent
Aircraft
A320
Sky
overcast from 1,600 ft, tops 3,000 ft
Remarks
on final runway 18 fnt
A320 descending, 30 nm northeast, 8:35 pm CDT (01:35 UTC): overcast from 1,900 ft to 3,000 ft, remarks: on final runway 09 fnt. 207 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
FNT UA /OV FNT270008/TM 0135/FLDURD/TP A320/SK OVC019 - TOP030/RM ON FINAL RY09 FNT
```
Report
a routine report filed through FNT
Where
8 nm west (270°) of FNT
Time
01:35 UTC
Height
during the descent
Aircraft
A320
Sky
overcast from 1,900 ft, tops 3,000 ft
Remarks
on final runway 09 fnt
C25B at 2,000 ft, 30 nm northeast, 9:18 pm CDT (02:18 UTC): a routine report with nothing remarked on. 227 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
PTK UA /OV 2 W/TM 0218/FL020/TP C25B/SK BASES 020 OVC
```
Report
a routine report filed through PTK
Where
2 west
Time
02:18 UTC
Height
at 2,000 ft
Aircraft
C25B
Sky
bases 2,000 ft overcast
SR22 at 1,300 ft, 27 nm northeast, 8:25 pm CDT (01:25 UTC): a routine report with nothing remarked on. 227 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
PTK UA /OV PTK270003/TM 0125/FL013/TP SR22/SK BASES 019 OVC
```
Report
a routine report filed through PTK
Where
3 nm west (270°) of PTK
Time
01:25 UTC
Height
at 1,300 ft
Aircraft
SR22
Sky
bases 1,900 ft overcast
C550 at 2,300 ft, 30 nm northeast, 7:46 pm CDT (00:46 UTC): remarks: fis 4 mile final. 227 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
PTK UA /OV 4W/TM 0046/FL023/TP C550/RM FIS 4 MILE FINAL
```
Report
a routine report filed through PTK
Where
4W
Time
00:46 UTC
Height
at 2,300 ft
Aircraft
C550
Remarks
fis 4 mile final
CRJ7 at 600 ft, 10 nm northeast, 9:07 pm CDT (02:07 UTC): a broken layer above 1,500 ft. 246 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0207/FLSFC/TP CRJ7/SK BKN 015
```
Report
a routine report filed through DTW
Where
over DTW
Time
02:07 UTC
Height
at the surface
Aircraft
CRJ7
Sky
a broken layer from 1,500 ft
CRJ7 descending, 10 nm northeast, 8:01 pm CDT (01:01 UTC): overcast above 2,800 ft. 246 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
DTW UA /OV FINAL 3R /TM 0101/FLDURD/TP CRJ7/SK OVC 028
```
Report
a routine report filed through DTW
Where
final 3R
Time
01:01 UTC
Height
during the descent
Aircraft
CRJ7
Sky
overcast from 2,800 ft
A21N descending, 10 nm northeast, 7:22 pm CDT (00:22 UTC): overcast above 1,500 ft. 246 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0022/FLDURD/TP A21N/SK OVC015
```
Report
a routine report filed through DTW
Where
over DTW
Time
00:22 UTC
Height
during the descent
Aircraft
A21N
Sky
overcast from 1,500 ft
CRJ9 descending, 10 nm northeast, 7:08 pm CDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. 246 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0008/FLDURD/TP CRJ9/SK OVC 011/RM FINAL RY 4L
```
Report
a routine report filed through DTW
Where
over DTW
Time
00:08 UTC
Height
during the descent
Aircraft
CRJ9
Sky
overcast from 1,100 ft
Remarks
final runway 4L
PA44 descending, 32 nm southwest, 9:27 pm CDT (02:27 UTC): a broken layer from 900 ft to 1,500 ft; a broken layer from 2,600 ft to 3,500 ft, fog. 256 nm along the route, 32 nm southwest of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 0227/FLDURD/TP PA44/SK BKN009 TOPS015 BKN026 TOPS035/WX FG
```
Report
a routine report filed through TOL
Where
over TOL
Time
02:27 UTC
Height
during the descent
Aircraft
PA44
Sky
BKN009 TOPS015 BKN026 TOPS035
Weather
fog

4 more routine reports are on the map.

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 4 forecast points nearest it (GRB, MKG, FWA, CLE). 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	280° at 15 kt	−13 kt		133 kt	2 h 44 min	1:46 am EDT (05:46 UTC)
5,500 ft	310° at 14 kt	−14 kt		134 kt	2 h 43 min	1:45 am EDT (05:45 UTC)
7,500 ft	320° at 13 kt	−13 kt	11 °C	133 kt	2 h 44 min	1:46 am EDT (05:46 UTC)
9,500 ft	320° at 13 kt	−12 kt	8 °C	132 kt	2 h 45 min	1:47 am EDT (05:47 UTC)
11,500 ft	320° at 10 kt	−10 kt	4 °C	130 kt	2 h 48 min	1:50 am EDT (05:50 UTC)
13,500 ft	320° at 14 kt	−14 kt	0 °C	134 kt	2 h 43 min	1:45 am EDT (05:45 UTC)
15,500 ft	320° at 19 kt	−19 kt	-4 °C	139 kt	2 h 37 min	1:39 am EDT (05:39 UTC)
17,500 ft	310° at 24 kt	−24 kt	-8 °C	144 kt	2 h 32 min	1:34 am EDT (05:34 UTC)
18,000 ft FL180	310° at 26 kt	−26 kt	-9 °C	146 kt	2 h 30 min	1:32 am EDT (05:32 UTC)
24,000 ft FL240	320° at 34 kt	−34 kt	-20 °C	154 kt	2 h 22 min	1:24 am EDT (05:24 UTC)
30,000 ft FL300	330° at 48 kt	−45 kt	-36 °C	165 kt	2 h 12 min	1:14 am EDT (05:14 UTC)
34,000 ft FL340	320° at 59 kt	−57 kt	-44 °C	177 kt	2 h 03 min	1:05 am EDT (05:05 UTC)
39,000 ft FL390	320° at 66 kt	−64 kt	-52 °C	184 kt	1 h 59 min	1:01 am EDT (05:01 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
GRB	used from 0 nm out; 25 nm from the line	250/36	270/23 16°	270/14 9°	240/18 4°	280/26 -9°	280/29 -20°	290/42 -36°	290/51 -45°	290/72 -55°
MKG	used from 49 nm out; 43 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
FWA	used from 197 nm out; 99 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CLE	used from 246 nm out; 62 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -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
GRB Green Bay, WI	departure	VFR	from the south-southwest (200°) at 6 knots	10+ mi	none	695 ft	9:53 pm CDT (02:53 UTC)
MTW Manitowoc, WI	30 nm out, 7 nm southwest of the line	VFR	from the south (190°) at 5 knots	10+ mi	none	650 ft	02:56 UTC
LDM Ludington, MI	79 nm out, 16 nm northeast of the line	VFR	from the south (170°) at 8 knots	10+ mi	none	646 ft	02:55 UTC
MKG Muskegon, MI	108 nm out, 19 nm southwest of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the south-southeast (150°) at 4 knots	10+ mi	none	628 ft	02:55 UTC
GRR Grand Rapids, MI	148 nm out, 15 nm southwest of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the south-southeast (150°) at 5 knots	10+ mi	none	793 ft	02:53 UTC
LAN Lansing, MI	187 nm out, 5 nm north of the line, tower	VFR	from the south-southeast (160°) at 3 knots	10+ mi	none	860 ft	02:53 UTC
ARB Ann Arbor, MI	236 nm out, 2 nm west of the line, tower	reported, no category	calm		none	839 ft	02:53 UTC
YIP Detroit, MI	246 nm out, 8 nm north of the line, tower	marginal VFR Sky: overcast at 1,600 feet	calm	10+ mi	1,600 ft	715 ft	02:53 UTC
CYPT Pelee Island,	286 nm out, 7 nm northeast of the line	no report just now				571 ft
CLE Cleveland, OH	335 nm out, 12 nm north of the line, tower	marginal VFR Sky: overcast at 2,400 feet	from the west (280°) at 3 knots	10+ mi	2,400 ft	799 ft	02:51 UTC
CAK Akron, OH	destination	marginal VFR Sky: a few clouds at 1,000 feet, overcast at 1,700 feet	from the northwest (320°) at 4 knots	8 mi	1,700 ft	1,225 ft	10:51 pm EDT (02:51 UTC)

The highest airport on this list sits at 1,225 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At CAK when you get there the forecast at the estimated arrival, 1:01 am EDT (05:01 UTC)

Wind from the north-northeast at 5 knots, visibility more than 6 miles, overcast at 800 feet IFR

The whole forecast for CAK

From Sun 8:00 pm EDT (00:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, overcast at 800 feet
From Mon 4:00 am EDT (08:00 UTC): wind from the south-southwest at 5 knots, visibility 6 miles, light drizzle, overcast at 600 feet
From Mon 8:00 am EDT (12:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, overcast at 800 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, a broken layer at 1,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 3,000 feet

The forecast for GRB, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, clear skies
From Sun 9:00 pm CDT (02:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, low-level wind shear, clear skies
From Mon 12:00 am CDT (05:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 20,000 feet
From Mon 8:00 am CDT (13:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 1:00 pm CDT (18:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, scattered clouds at 4,500 feet

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

6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, at the destination end · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, at the destination end · a VIP movement · today · ZOB

Daylight

Sunset at GRB 6:13 pm CDT (23:13 UTC), at CAK 6:50 pm EDT (22:50 UTC) (civil twilight ends 7:17 pm EDT (23:17 UTC)). At 120 knots the arrival at CAK is before sunrise there (7:33 am EDT (11:33 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, 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, Akron-Canton Regional.