Chicago O'Hare International to Dane County Rgnl/Truax Field ORD → MSN
94 nautical miles (108 statute miles) northwest on a straight line, true course 318°, about 321° magnetic at the departure end (variation 3W). At 120 knots that is 48 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 9:08 pm CDT (02:08 UTC), after sunset at the destination. 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: 9,272 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
No SIGMET or AIRMET covers any part of this route right now.
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 ORD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B39M at 35,000 ft, 32 nm southeast, 7:29 pm CDT (00:29 UTC): no turbulence, remarks: smooth. At the departure end, 32 nm southeast of the line.
as filed, and in English
IKK UA /OV CGT/TM 0029/FL350/TP B39M/TB NEG/RM SMOOTH
- Report
- a routine report filed through IKK
- Where
- over CGT
- Time
- 00:29 UTC
- Height
- at 35,000 ft
- Aircraft
- B39M
- Turbulence
- none
- Remarks
- smooth
- CRJ7 at 17,000 ft, 41 nm east, 7:04 pm CDT (00:04 UTC): no turbulence. At the departure end, 41 nm east of the line.
as filed, and in English
BEH UA /OV ELX270040/TM 0004/FL170/TP CRJ7/TB NEG
- Report
- a routine report filed through BEH
- Where
- 40 nm west (270°) of ELX
- Time
- 00:04 UTC
- Height
- at 17,000 ft
- Aircraft
- CRJ7
- Turbulence
- none
- E295 at 37,000 ft, 33 nm northeast, 7:53 pm CDT (00:53 UTC): light chop turbulence. 66 nm along the route, 33 nm northeast of the line.
as filed, and in English
UES UA /OV BAE/TM 0053/FL370/TP E295/TB OCNL LGT CHOP
- Report
- a routine report filed through UES
- Where
- over BAE
- Time
- 00:53 UTC
- Height
- at 37,000 ft
- Aircraft
- E295
- Turbulence
- occasional light chop
- B737 at 32,000 ft, 12 nm northeast, 5:42 pm CDT (22:42 UTC): light clear-air turbulence. 85 nm along the route, 12 nm northeast of the line.
as filed, and in English
UES UA /OV BAE270030/TM 2242/FL320/TP B737/TB OCNL LGT CAT
- Report
- a routine report filed through UES
- Where
- 30 nm west (270°) of BAE
- Time
- 22:42 UTC
- Height
- at 32,000 ft
- Aircraft
- B737
- Turbulence
- occasional light clear-air turbulence
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 2 forecast points nearest it (JOT, DBQ). 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 | 240° at 16 kt | +3 kt | 117 kt | 48 min | 9:08 pm CDT (02:08 UTC) | |
| 6,500 ft | 260° at 16 kt | +8 kt | 15 °C | 112 kt | 50 min | 9:10 pm CDT (02:10 UTC) |
| 8,500 ft | 260° at 18 kt | +11 kt | 11 °C | 109 kt | 52 min | 9:12 pm CDT (02:12 UTC) |
| 10,500 ft | 280° at 17 kt | +13 kt | 7 °C | 107 kt | 53 min | 9:13 pm CDT (02:13 UTC) |
| 12,500 ft | 290° at 16 kt | +14 kt | 4 °C | 106 kt | 53 min | 9:13 pm CDT (02:13 UTC) |
| 14,500 ft | 290° at 16 kt | +14 kt | 0 °C | 106 kt | 53 min | 9:13 pm CDT (02:13 UTC) |
| 16,500 ft | 290° at 16 kt | +14 kt | -5 °C | 106 kt | 53 min | 9:13 pm CDT (02:13 UTC) |
| 18,000 ft FL180 | 290° at 16 kt | +13 kt | -8 °C | 107 kt | 53 min | 9:13 pm CDT (02:13 UTC) |
| 24,000 ft FL240 | 310° at 27 kt | +27 kt | -20 °C | 93 kt | 1 h 01 min | 9:21 pm CDT (02:21 UTC) |
| 30,000 ft FL300 | 320° at 45 kt | +45 kt | -36 °C | 75 kt | 1 h 15 min | 9:35 pm CDT (02:35 UTC) |
| 34,000 ft FL340 | 320° at 54 kt | +54 kt | -44 °C | 66 kt | 1 h 25 min | 9:45 pm CDT (02:45 UTC) |
| 39,000 ft FL390 | 310° at 68 kt | +67 kt | -50 °C | 53 kt | 1 h 46 min | 10:06 pm CDT (03:06 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JOT | used from 0 nm out; 45 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| DBQ | used from 47 nm out; 81 nm from the line | 220/23 | 240/22 16° | 240/24 10° | 260/18 5° | 270/16 -8° | 290/27 -19° | 310/42 -35° | 320/55 -44° | 300/71 -52° |
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 |
|---|---|---|---|---|---|---|---|
| ORD Chicago, IL | departure | no report just now | 680 ft | ||||
| UGN Chicago/Waukegan, IL | 19 nm out, 19 nm northeast of the line, tower | no report just now | 728 ft | ||||
| JVL Janesville, WI | 66 nm out, 12 nm southwest of the line, tower | no report just now | 807 ft | ||||
| MSN Madison, WI | destination | no report just now | 886 ft |
The highest airport on this list sits at 886 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MSN when you get there the forecast at the estimated arrival, 9:08 pm CDT (02:08 UTC)
MSN has no terminal forecast; use the nearest airport that does.
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 ORD 6:15 pm CDT (23:15 UTC), at MSN 6:19 pm CDT (23:19 UTC) (civil twilight ends 6:48 pm CDT (23:48 UTC)). At 120 knots the arrival at MSN is after sunset there (6:21 pm CDT (23:21 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
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: Chicago O'Hare International, Dane County Rgnl/Truax Field.