Plan a flight · Mon 10:50 am CDT (15:50 UTC)

Eppley Airfield to Gary/Chicago International OMA → GYY

382 nautical miles (439 statute miles) east on a straight line, true course 084°, about 082° magnetic at the departure end (variation 2E). At 120 knots that is 2 h 07 min at the quickest height in today's winds (34,000 ft, a 60-knot tailwind), arriving about 12:57 pm CDT (17:57 UTC). Right now OMA is VFR, wind from the south (170°) at 13 knots; GYY is VFR, wind from the south-southwest (210°) 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: 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). Over the first 137 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 OMA.

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

C17 at 2,000 ft, 10 nm north, 10:06 am CDT (15:06 UTC): overcast above 2,000 ft, remarks: during the descent. 333 nm along the route, 10 nm north of the line.
as filed, and in English
```
KADW UA /OV 1L ARR/TM 1506/FL020/TP C17/SK OVC020/WV 23KT HEAD WIND/RM DURD
```
Report
a routine report filed through KADW
Where
1L arrival
Time
15:06 UTC
Height
at 2,000 ft
Aircraft
C17
Sky
overcast from 2,000 ft
Wind
23 knots head wind
Remarks
during the descent
B39M at 36,000 ft, 37 nm north, 8:18 am CDT (13:18 UTC): no turbulence. 362 nm along the route, 37 nm north of the line.
as filed, and in English
```
PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
```
Report
a routine report filed through PWK
Where
over OBK
Time
13:18 UTC
Height
at 36,000 ft
Aircraft
B39M
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 5 forecast points nearest it (OMA, DSM, BRL, DBQ, JOT). 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 29 kt	−24 kt		144 kt	2 h 39 min	1:29 pm CDT (18:29 UTC)
5,500 ft	240° at 29 kt	−25 kt		145 kt	2 h 38 min	1:28 pm CDT (18:28 UTC)
7,500 ft	240° at 29 kt	−26 kt	15 °C	146 kt	2 h 37 min	1:27 pm CDT (18:27 UTC)
9,500 ft	240° at 30 kt	−28 kt	11 °C	148 kt	2 h 35 min	1:25 pm CDT (18:25 UTC)
11,500 ft	250° at 32 kt	−31 kt	6 °C	151 kt	2 h 32 min	1:22 pm CDT (18:22 UTC)
13,500 ft	260° at 32 kt	−32 kt	2 °C	152 kt	2 h 31 min	1:21 pm CDT (18:21 UTC)
15,500 ft	260° at 32 kt	−32 kt	-3 °C	152 kt	2 h 31 min	1:21 pm CDT (18:21 UTC)
17,500 ft	260° at 31 kt	−32 kt	-7 °C	152 kt	2 h 31 min	1:21 pm CDT (18:21 UTC)
18,000 ft FL180	260° at 31 kt	−32 kt	-8 °C	152 kt	2 h 31 min	1:21 pm CDT (18:21 UTC)
24,000 ft FL240	260° at 39 kt	−39 kt	-21 °C	159 kt	2 h 24 min	1:14 pm CDT (18:14 UTC)
30,000 ft FL300	280° at 54 kt	−53 kt	-33 °C	173 kt	2 h 12 min	1:02 pm CDT (18:02 UTC)
34,000 ft FL340	280° at 62 kt	−60 kt	-37 °C	180 kt	2 h 07 min	12:57 pm CDT (17:57 UTC)
39,000 ft FL390	280° at 60 kt	−57 kt	-47 °C	177 kt	2 h 09 min	12:59 pm CDT (17:59 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
OMA	used from 0 nm out; 24 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 49 nm out; 28 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°
BRL	used from 147 nm out; 62 nm from the line	240/28	240/25 18°	250/26 12°	260/29 5°	260/24 -8°	270/36 -20°	280/57 -33°	290/65 -37°	290/54 -46°
DBQ	used from 245 nm out; 60 nm from the line	250/26	240/32 19°	250/35 11°	260/37 5°	270/35 -9°	270/40 -21°	270/43 -35°	280/49 -37°	280/58 -46°
JOT	used from 294 nm out; 30 nm from the line	230/30	250/26 16°	270/27 11°	280/34 5°	290/32 -8°	280/37 -21°	280/40 -36°	290/46 -37°	290/56 -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
OMA Omaha, NE	departure	VFR Sky: a few clouds at 12,000 feet, scattered clouds at 25,000 feet	from the south (170°) at 13 knots	10+ mi	none	984 ft	9:52 am CDT (14:52 UTC)
AIO Atlantic, IA	39 nm out, 3 nm north of the line	VFR	from the south-southwest (200°) at 14 knots, gusting to 21	10+ mi	none	1,164 ft	15:35 UTC
GFZ Greenfield, IA	69 nm out, 6 nm southwest of the line	no report just now				1,363 ft
DSM Des Moines, IA	98 nm out, 6 nm northeast of the line, tower	VFR Sky: a few clouds at 10,000 feet, a few clouds at 20,000 feet, a broken layer at 25,000 feet	from the south-southwest (210°) at 13 knots, gusting to 21	10+ mi	25,000 ft	957 ft	14:54 UTC
PEA Pella, IA	137 nm out, 6 nm southwest of the line	VFR	from the south-southwest (200°) at 10 knots	10+ mi	none	885 ft	15:35 UTC
CID Cedar Rapids, IA	186 nm out, 21 nm north of the line, tower	VFR Sky: scattered clouds at 10,000 feet	from the south (190°) at 10 knots	10+ mi	none	869 ft	14:52 UTC
MLI Moline, IL	245 nm out, 8 nm south of the line, tower	VFR Sky: a few clouds at 12,000 feet	from the south-southwest (210°) at 10 knots	10+ mi	none	589 ft	14:52 UTC
SQI Sterling/Rockfalls, IL	284 nm out, 10 nm north of the line	VFR	variable at 6 knots	10+ mi	none	647 ft	14:56 UTC
ARR Chicago/Aurora, IL	333 nm out, 10 nm north of the line, tower	VFR	from the southwest (220°) at 10 knots	9 mi	none	712 ft	14:52 UTC
LOT Chicago/Romeoville, IL	352 nm out, 1 nm west of the line, tower	VFR Sky: scattered clouds at 15,000 feet	from the southwest (220°) at 12 knots	10+ mi	none	679 ft	15:45 UTC
GYY Gary/Chicago, IN	destination	VFR	from the south-southwest (210°) at 6 knots	10+ mi	none	596 ft	8:50 am CDT (13:50 UTC)

The highest airport on this list sits at 1,363 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GYY when you get there the forecast at the estimated arrival, 12:57 pm CDT (17:57 UTC)

Wind from the southwest at 13 knots, gusting to 23, visibility more than 6 miles, a broken layer at 25,000 feet VFR

The whole forecast for GYY

From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the southwest at 13 knots, gusting to 23, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 7:00 pm CDT (00:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 feet
From Mon 11:00 pm CDT (04:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
From Tue 6:00 am CDT (11:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 20,000 feet

The forecast for OMA, the departure

From Mon 11:00 am CDT (16:00 UTC): wind from the south at 13 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 1:00 pm CDT (18:00 UTC): wind from the south-southwest at 16 knots, gusting to 23, visibility more than 6 miles, clear skies
From Mon 8:00 pm CDT (01:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, clear skies

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 OMA 6:47 pm CDT (23:47 UTC), at GYY 6:13 pm CDT (23:13 UTC) (civil twilight ends 6:41 pm CDT (23:41 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 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: Eppley Airfield, Gary/Chicago International.