Plan a flight · Mon 9:38 am CDT (14:38 UTC)

Central Nebraska Regional to Green Bay/Austin Straubel International GRI → GRB

496 nautical miles (570 statute miles) northeast on a straight line, true course 061°, about 054° magnetic at the departure end (variation 7E). At 120 knots that is 2 h 53 min at the quickest height in today's winds (34,000 ft, a 52-knot tailwind), arriving about 12:31 pm CDT (17:31 UTC). Right now GRI is VFR, wind from the south (190°) at 12 knots; GRB is VFR, wind from the south-southwest (200°) 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: 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 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, 109 nm along 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 GRI.

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

E170 at 15,000 ft, 19 nm northwest, 6:56 am CDT (11:56 UTC): moderate chop turbulence. 436 nm along the route, 19 nm northwest of the line.
as filed, and in English
```
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
```
Report
a routine report filed through Y50
Where
25 nm northwest (330°) of Y50
Time
11:56 UTC
Height
at 15,000 ft
Aircraft
E170
Turbulence
moderate chop
B38M at 39,000 ft, 39 nm southwest, 7:43 am CDT (12:43 UTC): light chop turbulence. At the departure end, 39 nm southwest of the line.
as filed, and in English
```
HSI UA /OV HSI270030/TM 1243/FL390/TP B38M/TB CONS LGT CHOP
```
Report
a routine report filed through HSI
Where
30 nm west (270°) of HSI
Time
12:43 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
continuous light chop
B38M at 17,000 ft, 36 nm southeast, 7:41 am CDT (12:41 UTC): no turbulence, remarks: during the climb. 59 nm along the route, 36 nm southeast of the line.
as filed, and in English
```
LNK UA /OV LNK/TM 1241/FL170/TP B38M/TB NEG/RM DURC
```
Report
a routine report filed through LNK
Where
over LNK
Time
12:41 UTC
Height
at 17,000 ft
Aircraft
B38M
Turbulence
none
Remarks
during the climb
P46T at 31,000 ft, 31 nm south, 8:37 am CDT (13:37 UTC): light chop turbulence. 278 nm along the route, 31 nm south of the line.
as filed, and in English
```
ALO UA /OV ALO270005/TM 1337/FL310/TP P46T/TB INTMT LGT CHOP
```
Report
a routine report filed through ALO
Where
5 nm west (270°) of ALO
Time
13:37 UTC
Height
at 31,000 ft
Aircraft
P46T
Turbulence
intermittent light chop
C510 at 17,000 ft, 37 nm south, 8:27 am CDT (13:27 UTC): no turbulence. 387 nm along the route, 37 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
PC12 at 20,000 ft, 37 nm south, 8:27 am CDT (13:27 UTC): no turbulence. 387 nm along the route, 37 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

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 6 forecast points nearest it (GRI, OMA, DSM, MCW, LSE, GRB). 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	230° at 21 kt	−20 kt		140 kt	3 h 33 min	1:11 pm CDT (18:11 UTC)
5,500 ft	230° at 27 kt	−26 kt	19 °C	146 kt	3 h 24 min	1:02 pm CDT (18:02 UTC)
7,500 ft	240° at 31 kt	−31 kt	16 °C	151 kt	3 h 17 min	12:55 pm CDT (17:55 UTC)
9,500 ft	240° at 34 kt	−34 kt	11 °C	154 kt	3 h 13 min	12:51 pm CDT (17:51 UTC)
11,500 ft	240° at 33 kt	−33 kt	7 °C	153 kt	3 h 15 min	12:53 pm CDT (17:53 UTC)
13,500 ft	240° at 33 kt	−33 kt	2 °C	153 kt	3 h 15 min	12:53 pm CDT (17:53 UTC)
15,500 ft	250° at 33 kt	−33 kt	-3 °C	153 kt	3 h 15 min	12:53 pm CDT (17:53 UTC)
17,500 ft	250° at 33 kt	−34 kt	-8 °C	154 kt	3 h 13 min	12:51 pm CDT (17:51 UTC)
18,000 ft FL180	250° at 34 kt	−34 kt	-9 °C	154 kt	3 h 13 min	12:51 pm CDT (17:51 UTC)
24,000 ft FL240	260° at 42 kt	−41 kt	-21 °C	161 kt	3 h 05 min	12:43 pm CDT (17:43 UTC)
30,000 ft FL300	260° at 52 kt	−49 kt	-33 °C	169 kt	2 h 56 min	12:34 pm CDT (17:34 UTC)
34,000 ft FL340	270° at 60 kt	−52 kt	-37 °C	172 kt	2 h 53 min	12:31 pm CDT (17:31 UTC)
39,000 ft FL390	280° at 60 kt	−51 kt	-47 °C	171 kt	2 h 54 min	12:32 pm CDT (17:32 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
GRI	used from 0 nm out; 25 nm from the line		270/26 19°	230/33 13°	230/39 8°	230/43 -9°	240/55 -21°	250/76 -28°	260/84 -36°	260/68 -47°
OMA	used from 50 nm out; 46 nm from the line	210/23	240/34 20°	230/40 14°	220/43 7°	240/38 -8°	250/47 -21°	270/70 -29°	270/79 -36°	270/68 -48°
DSM	used from 149 nm out; 71 nm from the line	230/34	230/32 20°	220/33 12°	240/35 5°	250/39 -7°	250/43 -21°	280/61 -31°	280/73 -37°	280/67 -47°
MCW	used from 198 nm out; 38 nm from the line	220/19	210/29 20°	230/35 13°	250/35 5°	250/33 -9°	260/44 -21°	260/46 -33°	270/58 -37°	270/59 -46°
LSE	used from 297 nm out; 40 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 446 nm out; 25 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°

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
GRI Grand Island, NE	departure	VFR	from the south (190°) at 12 knots	10+ mi	none	1,847 ft	8:53 am CDT (13:53 UTC)
JYR York, NE	30 nm out, 19 nm south of the line	VFR	from the south (190°) at 12 knots	10+ mi	none	1,669 ft	14:15 UTC
SCB Scribner, NE	89 nm out, 4 nm southwest of the line	no report just now				1,324 ft
TQE Tekamah, NE	109 nm out, 3 nm south of the line	VFR	from the southeast (140°) at 7 knots	10+ mi	none	1,026 ft	13:54 UTC
SKI Sac City, IA	169 nm out, 7 nm north of the line	no report just now				1,249 ft
FOD Fort Dodge, IA	208 nm out, 1 nm west of the line	VFR	from the south-southwest (200°) at 10 knots	10+ mi	none	1,156 ft	13:56 UTC
CCY Charles City, IA	288 nm out, 4 nm southwest of the line	VFR Sky: a broken layer at 17,000 feet	from the south-southwest (200°) at 9 knots, gusting to 14	10+ mi	17,000 ft	1,125 ft	14:15 UTC
DEH Decorah, IA	327 nm out, 7 nm south of the line	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	1,157 ft	14:15 UTC
CMY Sparta, WI	377 nm out, 14 nm north of the line, tower	VFR	calm	10+ mi	none	839 ft	13:55 UTC
DAF Necedah, WI	406 nm out, 7 nm north of the line	no report just now				919 ft
ATW Appleton, WI	476 nm out, 6 nm south of the line, tower	VFR Sky: scattered clouds at 12,000 feet	from the south (180°) at 6 knots	10+ mi	none	918 ft	13:45 UTC
GRB Green Bay, WI	destination	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	695 ft	8:53 am CDT (13:53 UTC)

The highest airport on this list sits at 1,847 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GRB when you get there the forecast at the estimated arrival, 12:31 pm CDT (17:31 UTC)

Wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 20,000 feet VFR

The whole forecast for GRB

From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
From Mon 8:00 pm CDT (01:00 UTC): wind from the east-southeast at 3 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 10,000 feet
30% chance between Mon 9:00 pm CDT (02:00 UTC) and 11:00 pm CDT (04:00 UTC): light rain showers, a broken layer at 6,000 feet
From Mon 11:00 pm CDT (04:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, a broken layer at 2,000 feet
From Tue 3:00 am CDT (08:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, scattered clouds at 2,000 feet

The forecast for GRI, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 feet
From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the west-southwest at 13 knots, gusting to 21, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 1:00 pm CDT (18:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 10:00 pm CDT (03:00 UTC): wind from the north at 12 knots, visibility more than 6 miles, scattered clouds at 10,000 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 GRI 6:57 pm CDT (23:57 UTC), at GRB 6:13 pm CDT (23:13 UTC) (civil twilight ends 6:42 pm CDT (23:42 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 northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Central Nebraska Regional, Green Bay/Austin Straubel International.