Plan a flight · Mon 6:25 am CDT (11:25 UTC)

Green Bay/Austin Straubel International to Raleigh-Durham International GRB → RDU

670 nautical miles (771 statute miles) southeast on a straight line, true course 137°, about 139° magnetic at the departure end (variation 2W). At 120 knots that is 3 h 56 min at the quickest height in today's winds (39,000 ft, a 50-knot tailwind), arriving about 11:21 am EDT (15:21 UTC). Right now GRB is VFR, wind calm; RDU is VFR, wind from the west-southwest (250°) at 5 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 route from 197 to 562 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 444 to 562 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 503 to 601 nm out.
AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 572 to 651 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 GRB.

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

A321 at 32,000 ft, 17 nm northeast, 4:48 am CDT (09:48 UTC): moderate chop turbulence. 463 nm along the route, 17 nm northeast of the line.
as filed, and in English
```
CRW UA /OV HVQ045040/TM 0948/FL320/TP A321/TB OCNL MOD CHOP
```
Report
a routine report filed through CRW
Where
40 nm northeast (045°) of HVQ
Time
09:48 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
occasional moderate chop
E75L at 30,000 ft, 10 nm east, 5:51 am CDT (10:51 UTC): moderate turbulence above 30,000 ft. At the destination end, 10 nm east of the line.
as filed, and in English
```
RDU UA /OV RDU360020/TM 1051/FLF300/TP E75L/TB MOD 300
```
Report
a routine report filed through RDU
Where
20 nm north (360°) of RDU
Time
10:51 UTC
Height
at F300
Aircraft
E75L
Turbulence
moderate at 30,000 ft
A321 at 34,000 ft, 44 nm southwest, 6:20 am CDT (11:20 UTC): no turbulence. 246 nm along the route, 44 nm southwest of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 1120/FL340/TP A321/TB NEG
```
Report
a routine report filed through FWA
Where
over FWA
Time
11:20 UTC
Height
at 34,000 ft
Aircraft
A321
Turbulence
none
CRJ2 at 5,500 ft, 44 nm southwest, 4:45 am CDT (09:45 UTC): mist. 246 nm along the route, 44 nm southwest of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 0945/FL055/TP CRJ2/WX MIST
```
Report
a routine report filed through FWA
Where
over FWA
Time
09:45 UTC
Height
at 5,500 ft
Aircraft
CRJ2
Weather
shallow st
F2TH at 40,000 ft, 48 nm southwest, 6:06 am CDT (11:06 UTC): no turbulence. 256 nm along the route, 48 nm southwest of the line.
as filed, and in English
```
FWA UA /OV FWA170012/TM 1106/FL400/TP F2TH/TB NEG
```
Report
a routine report filed through FWA
Where
12 nm south (170°) of FWA
Time
11:06 UTC
Height
at 40,000 ft
Aircraft
F2TH
Turbulence
none
MD83 at 2,500 ft, 28 nm northeast, 5:43 am CDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. 256 nm along the route, 28 nm northeast of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
```
Report
a routine report filed through TOL
Where
over TOL
Time
10:43 UTC
Height
at 2,500 ft
Aircraft
MD83
Remarks
base 1,000 ft tops 2,500 ft clear above
CL35 climbing, 7 nm southwest, 6:00 am CDT (11:00 UTC): a routine report with nothing remarked on. 345 nm along the route, 7 nm southwest of the line.
as filed, and in English
```
OSU UA /OV OSU270003/TM 1100/FLDURC/TP CL35/SK B016
```
Report
a routine report filed through OSU
Where
3 nm west (270°) of OSU
Time
11:00 UTC
Height
during the climb
Aircraft
CL35
Sky
B016
E170 at 6,000 ft, 1 nm south, 5:00 am CDT (10:00 UTC): remarks: during the climb. 355 nm along the route, 1 nm south of the line.
as filed, and in English
```
CMH UA /OV CMH/TM 1000/FL060/TP E170/SK B008-TOP031/RM DURC
```
Report
a routine report filed through CMH
Where
over CMH
Time
10:00 UTC
Height
at 6,000 ft
Aircraft
E170
Sky
B008-TOP031
Remarks
during the climb
B737 at 39,000 ft, 16 nm northeast, 3:40 am CDT (08:40 UTC): light chop turbulence. 355 nm along the route, 16 nm northeast of the line.
as filed, and in English
```
CMH UA /OV APE/TM 0840/FL390/TP B737/TB CONS LGT CHOP 390 NEG 350-330
```
Report
a routine report filed through CMH
Where
over APE
Time
08:40 UTC
Height
at 39,000 ft
Aircraft
B737
Turbulence
continuous light chop at 39,000 ft no from 35,000 ft to 33,000 ft
E75L at 21,000 ft, 33 nm northeast, 5:23 am CDT (10:23 UTC): clear from 21,000 ft to 60,000 ft. 384 nm along the route, 33 nm northeast of the line.
as filed, and in English
```
ZZV UA /OV ZZV/TM 1023/FL210/TP E75L/SK SKC
```
Report
a routine report filed through ZZV
Where
over ZZV
Time
10:23 UTC
Height
at 21,000 ft
Aircraft
E75L
Sky
clear
SR22 , 27 nm northeast, 5:30 am CDT (10:30 UTC): no icing. 424 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
PKB UA /OV PKB/TM 1030/FL000/TP SR22/SK TOP 045 BASE 004/IC NEG
```
Report
a routine report filed through PKB
Where
over PKB
Time
10:30 UTC
Height
at 0 ft
Aircraft
SR22
Sky
top 4,500 ft base 400 ft
Icing
none
B350 climbing, 15 nm southwest, 6:12 am CDT (11:12 UTC): a routine report with nothing remarked on. 473 nm along the route, 15 nm southwest of the line.
as filed, and in English
```
CRW UA /OV CRW/TM 1112/FLDURC/TP B350/SK TOP050
```
Report
a routine report filed through CRW
Where
over CRW
Time
11:12 UTC
Height
during the climb
Aircraft
B350
Sky
TOP050
BE20 climbing, 15 nm southwest, 6:11 am CDT (11:11 UTC): overcast above 1,300 ft. 473 nm along the route, 15 nm southwest of the line.
as filed, and in English
```
CRW UA /OV CRW/TM 1111/FLDURC/TP BE20/SK OVC013-TOPUNKN
```
Report
a routine report filed through CRW
Where
over CRW
Time
11:11 UTC
Height
during the climb
Aircraft
BE20
Sky
overcast from 1,300 ft, tops unknown
CRJ9 climbing, 15 nm southwest, 5:15 am CDT (10:15 UTC): a broken layer above 1,300 ft. 473 nm along the route, 15 nm southwest of the line.
as filed, and in English
```
CRW UA /OV CRW/TM 1015/FLDURC/TP CRJ9/SK BKN013-TOPUNKN
```
Report
a routine report filed through CRW
Where
over CRW
Time
10:15 UTC
Height
during the climb
Aircraft
CRJ9
Sky
a broken layer from 1,300 ft, tops unknown

2 more routine reports are on the map.

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, MKG, FWA, CMH, CRW, ROA, RDU). 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	290° at 21 kt	−19 kt		139 kt	4 h 49 min	12:14 pm EDT (16:14 UTC)
5,500 ft	310° at 19 kt	−19 kt		139 kt	4 h 49 min	12:14 pm EDT (16:14 UTC)
7,500 ft	320° at 18 kt	−18 kt	12 °C	138 kt	4 h 51 min	12:16 pm EDT (16:16 UTC)
9,500 ft	320° at 17 kt	−18 kt	8 °C	138 kt	4 h 51 min	12:16 pm EDT (16:16 UTC)
11,500 ft	310° at 20 kt	−20 kt	5 °C	140 kt	4 h 47 min	12:12 pm EDT (16:12 UTC)
13,500 ft	310° at 23 kt	−23 kt	1 °C	143 kt	4 h 41 min	12:06 pm EDT (16:06 UTC)
15,500 ft	310° at 27 kt	−27 kt	-3 °C	147 kt	4 h 33 min	11:58 am EDT (15:58 UTC)
17,500 ft	310° at 30 kt	−31 kt	-7 °C	151 kt	4 h 26 min	11:51 am EDT (15:51 UTC)
18,000 ft FL180	310° at 31 kt	−32 kt	-8 °C	152 kt	4 h 24 min	11:49 am EDT (15:49 UTC)
24,000 ft FL240	310° at 34 kt	−34 kt	-20 °C	154 kt	4 h 21 min	11:46 am EDT (15:46 UTC)
30,000 ft FL300	320° at 39 kt	−40 kt	-35 °C	160 kt	4 h 11 min	11:36 am EDT (15:36 UTC)
34,000 ft FL340	320° at 46 kt	−46 kt	-43 °C	166 kt	4 h 02 min	11:27 am EDT (15:27 UTC)
39,000 ft FL390	300° at 52 kt	−50 kt	-50 °C	170 kt	3 h 56 min	11:21 am EDT (15:21 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°
MKG	used from 49 nm out; 41 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
FWA	used from 197 nm out; 49 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -52°
CMH	used from 296 nm out; 36 nm from the line	320/12	340/26 15°	340/22 9°	320/24 3°	320/32 -7°	320/36 -20°	330/42 -35°	320/59 -44°	320/57 -50°
CRW	used from 394 nm out; 53 nm from the line	320/17	340/23 12°	340/32 8°	340/35 4°	330/40 -7°	340/45 -20°	340/57 -34°	340/64 -42°	320/38 -50°
ROA	used from 493 nm out; 49 nm from the line	310/32	340/32 14°	350/25 9°	340/24 3°	340/42 -8°	340/52 -20°	350/62 -34°	350/64 -39°	310/44 -48°
RDU	used from 641 nm out; 15 nm from the line	330/30	340/24 12°	330/26 7°	320/30 3°	330/39 -8°	310/30 -20°	300/33 -33°	310/34 -39°	310/41 -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
GRB Green Bay, WI	departure	VFR	calm	10+ mi	none	695 ft	5:53 am CDT (10:53 UTC)
MTW Manitowoc, WI	30 nm out, 1 nm northwest of the line	VFR	from the southwest (220°) at 3 knots	10+ mi	none	650 ft	10:56 UTC
MKG Muskegon, MI	118 nm out, 9 nm north of the line, tower	VFR Sky: scattered clouds at 25,000 feet	from the south (190°) at 8 knots	10+ mi	none	628 ft	10:55 UTC
AZO Kalamazoo, MI	177 nm out, 7 nm southwest of the line, tower	marginal VFR Weather: mist	from the south (170°) at 5 knots	5 mi	none	873 ft	10:53 UTC
OEB Coldwater, MI	207 nm out, 3 nm northwest of the line	VFR	from the south-southwest (210°) at 5 knots	9 mi	none	958 ft	11:15 UTC
OWX Ottawa, OH	276 nm out, 0 nm northeast of the line	low IFR Sky: overcast at 100 feet Weather: fog	from the south-southwest (200°) at 6 knots	0.25 mi	100 ft	763 ft	11:15 UTC
CMH Columbus, OH	355 nm out, 1 nm south of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,200 feet	calm	10+ mi	700 ft	815 ft	10:51 UTC
UNI Athens/Albany, OH	414 nm out, 7 nm west of the line	marginal VFR Sky: overcast at 1,800 feet Weather: mist	from the northwest (310°) at 7 knots	6 mi	1,800 ft	765 ft	07:55 UTC
LWB Lewisburg, WV	532 nm out, 11 nm northeast of the line, tower	marginal VFR Sky: overcast at 1,900 feet	from the west (280°) at 6 knots	10+ mi	1,900 ft	2,301 ft	05:55 UTC
ROA Roanoke, VA	562 nm out, 8 nm east of the line, tower	VFR Sky: a broken layer at 3,700 feet	from the west-northwest (300°) at 11 knots, gusting to 18	10+ mi	3,700 ft	1,175 ft	10:54 UTC
DAN Danville, VA	621 nm out, 4 nm northeast of the line	VFR	from the west-southwest (250°) at 7 knots	10+ mi	none	571 ft	10:53 UTC
RDU Raleigh/Durham, NC	destination	VFR Sky: a few clouds at 7,000 feet	from the west-southwest (250°) at 5 knots	10+ mi	none	435 ft	6:51 am EDT (10:51 UTC)

The highest airport on this list sits at 2,301 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At RDU when you get there the forecast at the estimated arrival, 11:21 am EDT (15:21 UTC)

Wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,500 feet VFR

At times between Mon 10:00 am EDT (14:00 UTC) and 1:00 pm EDT (17:00 UTC): wind from the northwest at 12 knots, gusting to 22, a broken layer at 3,000 feet marginal VFR

The whole forecast for RDU

From Mon 2:00 am EDT (06:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 4,000 feet and more above
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,500 feet
At times between Mon 10:00 am EDT (14:00 UTC) and 1:00 pm EDT (17:00 UTC): wind from the northwest at 12 knots, gusting to 22, a broken layer at 3,000 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at GRB 6:13 pm CDT (23:13 UTC), at RDU 6:43 pm EDT (22:43 UTC) (civil twilight ends 7:09 pm EDT (23:09 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, Raleigh-Durham International.