Plan a flight · Mon 12:43 am CDT (05:43 UTC)

Green Bay/Austin Straubel International to Laughlin/Bullhead International GRB → IFP

1,333 nautical miles (1,535 statute miles) west on a straight line, true course 254°, about 256° magnetic at the departure end (variation 2W). At 120 knots that is 13 h 53 min at the quickest height in today's winds (8,500 ft, a 24-knot headwind), arriving about 12:36 pm MST (19:36 UTC). Right now GRB is VFR, wind from the south (190°) at 4 knots; IFP is VFR, wind from the southwest (220°) at 6 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: 14 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

SIGMET 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 1:55 am CDT (06:55 UTC). Near the route, 896 nm along the route.

as issued

WSUS32 KKCI 120455
MKCC WST 120455
CONVECTIVE SIGMET 7C
VALID UNTIL 0655Z
TX OK CO NM
FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB
AREA TS MOV FROM 22040KT. TOPS TO FL340.

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 20 to 697 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 667 to 1154 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 717 to 1304 nm out.
AIRMET TANGO 1W: 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 816 to 965 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 975 to 1324 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the last 179 nm of the route.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1184 to 1264 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, 1234 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 GRB.

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

urgent E75L at 9,000 ft, 23 nm north, 11:30 pm CDT (04:30 UTC): remarks: low-level wind shear + 20K 1000-1500 above ground on approach. 896 nm along the route, 23 nm north of the line.
as filed, and in English
```
ASE UUA /OV ASE/TM 0430/FL090/TP E75L/RM LLWS +/- 20K 1000-1500 AGL ON APCH
```
Report
an urgent report filed through ASE
Where
over ASE
Time
04:30 UTC
Height
at 9,000 ft
Aircraft
E75L
Remarks
low-level wind shear + 20K 1000-1500 above ground on approach
A320 descending, 7 nm northwest, 10:19 pm CDT (03:19 UTC): no turbulence up to 10,000 ft. 786 nm along the route, 7 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0319/FLDURD/TP A320/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
03:19 UTC
Height
during the descent
Aircraft
A320
Turbulence
no below 10,000 ft
E170 at 22,500 ft, 12 nm south, 12:06 am CDT (05:06 UTC): light to moderate turbulence up to 23,000 ft, remarks: during the descent tbarr star ZDVWC-13. 836 nm along the route, 12 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN216057/TM 0506/FL225/TP E170/TB CONS LGT OCNL MOD BLO 230/RM DURD TBARR STAR. ZDVWC-13
```
Report
a routine report filed through DEN
Where
57 nm southwest (216°) of DEN
Time
05:06 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous light occasional moderate below 23,000 ft
Remarks
during the descent tbarr star ZDVWC-13
B733 at 20,000 ft, 14 nm southeast, 10:16 pm CDT (03:16 UTC): light chop turbulence up to 20,000 ft, clear from 20,000 ft to 60,000 ft, remarks: during the climb ZDVWC-12. 925 nm along the route, 14 nm southeast of the line.
as filed, and in English
```
GUC UA /OV HBU/TM 0316/FL200/TP B733/SK SKC/TB OCNL LGT CHOP BLO 200/RM DURC ZDVWC-12
```
Report
a routine report filed through GUC
Where
over HBU
Time
03:16 UTC
Height
at 20,000 ft
Aircraft
B733
Sky
clear
Turbulence
occasional light chop below 20,000 ft
Remarks
during the climb ZDVWC-12
UAL2479 at 36,000 ft, 43 nm northwest, 10:11 pm CDT (03:11 UTC): no turbulence, wind 231° at 49 knots. 935 nm along the route, 43 nm northwest of the line.
as filed, and in English
```
ARP UAL2479 3910N 10753W 0311 F360 231/049KT TB SMTH IC
```
Report
a routine report filed through ARP

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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 13 forecast points nearest it (GRB, LSE, MCW, FSD, ONL, GRI, GLD, DEN, GJT, FMN, BCE, PRC, LAS). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
4,500 ft	230° at 32 kt	+30 kt	19 °C	90 kt	14 h 49 min	1:32 pm MST (20:32 UTC)
6,500 ft	230° at 29 kt	+28 kt	17 °C	92 kt	14 h 29 min	1:12 pm MST (20:12 UTC)
8,500 ft	230° at 24 kt	+24 kt	11 °C	96 kt	13 h 53 min	12:36 pm MST (19:36 UTC)
10,500 ft	230° at 25 kt	+24 kt	7 °C	96 kt	13 h 53 min	12:36 pm MST (19:36 UTC)
12,500 ft	230° at 27 kt	+27 kt	3 °C	93 kt	14 h 20 min	1:03 pm MST (20:03 UTC)
14,500 ft	230° at 29 kt	+29 kt	-1 °C	91 kt	14 h 39 min	1:22 pm MST (20:22 UTC)
16,500 ft	230° at 31 kt	+31 kt	-6 °C	89 kt	14 h 59 min	1:42 pm MST (20:42 UTC)
18,000 ft FL180	230° at 33 kt	+32 kt	-9 °C	88 kt	15 h 09 min	1:52 pm MST (20:52 UTC)
24,000 ft FL240	230° at 41 kt	+40 kt	-21 °C	80 kt	16 h 40 min	3:23 pm MST (22:23 UTC)
30,000 ft FL300	240° at 53 kt	+53 kt	-32 °C	67 kt	19 h 54 min	6:37 pm MST (01:37 UTC)
34,000 ft FL340	240° at 57 kt	+58 kt	-38 °C	62 kt	21 h 30 min	8:13 pm MST (03:13 UTC)
39,000 ft FL390	250° at 55 kt	+56 kt	-47 °C	64 kt	20 h 50 min	7:33 pm MST (02:33 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°
LSE	used from 50 nm out; 65 nm from the line	230/40	240/24 17°	240/13 10°	250/13 6°	280/22 -9°	250/28 -21°	250/41 -34°	260/42 -44°	270/62 -53°
MCW	used from 199 nm out; 17 nm from the line	220/44	250/30 17°	230/14 12°	240/17 6°	250/22 -8°	270/29 -20°	250/34 -34°	260/52 -43°	260/59 -51°
FSD	used from 299 nm out; 82 nm from the line	190/9	230/30 18°	240/23 13°	240/20 6°	260/22 -9°	250/31 -21°	250/43 -36°	260/49 -43°	270/53 -47°
ONL	used from 398 nm out; 64 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
GRI	used from 498 nm out; 59 nm from the line		230/35 21°	230/23 13°	220/20 7°	240/25 -8°	240/37 -20°	250/49 -33°	260/57 -38°	260/58 -47°
GLD	used from 597 nm out; 92 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
DEN	used from 697 nm out; 64 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
GJT	used from 896 nm out; 70 nm from the line			210/43 7°	230/45 1°	220/49 -12°	220/62 -22°	220/59 -28°	230/60 -33°	220/55 -45°
FMN	used from 995 nm out; 77 nm from the line			220/28 9°	220/40 2°	220/53 -10°	220/62 -22°	230/79 -28°	240/91 -34°	230/71 -45°
BCE	used from 1095 nm out; 76 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
PRC	used from 1194 nm out; 91 nm from the line			210/25 5°	200/30 1°	220/55 -10°	220/61 -21°	220/84 -28°	230/90 -34°	230/73 -45°
LAS	used from 1294 nm out; 64 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°

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 (190°) at 4 knots	10+ mi	none	695 ft	11:53 pm CDT (04:53 UTC)
CMY Sparta, WI	119 nm out, 3 nm northeast of the line, tower	VFR	calm	10+ mi	none	839 ft	04:55 UTC
LSE La Crosse, WI	139 nm out, 4 nm north of the line, tower	VFR	from the south-southwest (200°) at 12 knots	10+ mi	none	655 ft	04:53 UTC
SUX Sioux City, IA	378 nm out, 5 nm south of the line, tower	VFR	calm	10+ mi	none	1,098 ft	04:52 UTC
LCG Wayne, NE	408 nm out, 3 nm south of the line	VFR	calm	10+ mi	none	1,431 ft	05:35 UTC
LBF North Platte, NE	587 nm out, 1 nm west of the line	VFR	from the east-northeast (060°) at 3 knots	10+ mi	none	2,777 ft	04:53 UTC
APA Denver, CO	796 nm out, 4 nm southwest of the line, tower	VFR Sky: a few clouds at 14,000 feet, scattered clouds at 22,000 feet	from the south-southwest (200°) at 12 knots, gusting to 24	10+ mi	none	5,884 ft	04:53 UTC
BJC Denver, CO	806 nm out, 22 nm north of the line, tower	VFR	from the southwest (220°) at 3 knots	10+ mi	none	5,673 ft	05:35 UTC
BDG Blanding, UT	1045 nm out, 5 nm south of the line	VFR Sky: a broken layer at 8,000 feet, overcast at 10,000 feet	from the west-southwest (240°) at 9 knots	10+ mi	8,000 ft	5,867 ft	02:35 UTC
PGA Page, AZ	1144 nm out, 11 nm northwest of the line	VFR	calm	10+ mi	none	4,316 ft	04:53 UTC
GCN Grand Canyon, AZ	1204 nm out, 23 nm south of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 1,200 feet, overcast at 1,900 feet	from the south-southwest (200°) at 12 knots, gusting to 23	10+ mi	600 ft	6,608 ft	05:09 UTC
IFP Bullhead City, AZ	destination	VFR	from the southwest (220°) at 6 knots	10+ mi	none	707 ft	10:35 pm MST (05:35 UTC)

The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At IFP when you get there the forecast at the estimated arrival, 12:36 pm MST (19:36 UTC)

Wind from the south at 18 knots, gusting to 28, visibility more than 6 miles, showers nearby, scattered clouds at 8,000 feet, a broken layer at 10,000 feet VFR

The whole forecast for IFP

From Sun 11:00 pm MST (06:00 UTC): wind from the south at 10 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 8,000 feet, a broken layer at 12,000 feet
From Mon 12:00 am MST (07:00 UTC): wind from the south-southeast at 11 knots, visibility more than 6 miles, scattered clouds at 8,000 feet, a broken layer at 12,000 feet
From Mon 8:00 am MST (15:00 UTC): wind from the south-southeast at 12 knots, gusting to 22, visibility more than 6 miles, showers nearby, scattered clouds at 8,000 feet, a broken layer at 10,000 feet
From Mon 11:00 am MST (18:00 UTC): wind from the south at 18 knots, gusting to 28, visibility more than 6 miles, showers nearby, scattered clouds at 8,000 feet, a broken layer at 10,000 feet
From Mon 10:00 pm MST (05:00 UTC): wind from the south at 9 knots, gusting to 15, visibility more than 6 miles, a broken layer at 10,000 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

6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 20 nm from the route, 836 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local on the route, at the destination end · a VIP movement · starts Wednesday 14 October · ZLA

Daylight

Sunset at GRB 6:13 pm CDT (23:13 UTC), at IFP 6:07 pm MST (01:07 UTC) (civil twilight ends 6:32 pm MST (01:32 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 northern Rockies · loop National Weather Service

Radar now, the southern Rockies · 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, Laughlin/Bullhead International.