University Of Illinois/Willard Airport to Charleston Afb/Intl Airport CMI → CHS
584 nautical miles (672 statute miles) southeast on a straight line, true course 135°, about 138° magnetic at the departure end (variation 3W). At 120 knots that is 3 h 32 min at the quickest height in today's winds (34,000 ft, a 45-knot tailwind), arriving about 10:30 am EDT (14:30 UTC). 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 89 to 376 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 257 to 386 nm out.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the route from 356 to 426 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 366 to 426 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). Near the route, 396 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 CMI.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 6 forecast points nearest it (IND, LOU, TYS, GSP, CAE, CHS). 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 | 320° at 18 kt | −18 kt | 138 kt | 4 h 14 min | 11:12 am EDT (15:12 UTC) | |
| 5,500 ft | 330° at 19 kt | −19 kt | 139 kt | 4 h 12 min | 11:10 am EDT (15:10 UTC) | |
| 7,500 ft | 330° at 20 kt | −20 kt | 12 °C | 140 kt | 4 h 10 min | 11:08 am EDT (15:08 UTC) |
| 9,500 ft | 330° at 21 kt | −21 kt | 8 °C | 141 kt | 4 h 09 min | 11:07 am EDT (15:07 UTC) |
| 11,500 ft | 320° at 22 kt | −22 kt | 6 °C | 142 kt | 4 h 07 min | 11:05 am EDT (15:05 UTC) |
| 13,500 ft | 320° at 24 kt | −24 kt | 2 °C | 144 kt | 4 h 03 min | 11:01 am EDT (15:01 UTC) |
| 15,500 ft | 320° at 27 kt | −27 kt | -2 °C | 147 kt | 3 h 58 min | 10:56 am EDT (14:56 UTC) |
| 17,500 ft | 320° at 29 kt | −29 kt | -6 °C | 149 kt | 3 h 55 min | 10:53 am EDT (14:53 UTC) |
| 18,000 ft FL180 | 320° at 29 kt | −30 kt | -7 °C | 150 kt | 3 h 54 min | 10:52 am EDT (14:52 UTC) |
| 24,000 ft FL240 | 310° at 31 kt | −31 kt | -19 °C | 151 kt | 3 h 52 min | 10:50 am EDT (14:50 UTC) |
| 30,000 ft FL300 | 310° at 35 kt | −35 kt | -33 °C | 155 kt | 3 h 46 min | 10:44 am EDT (14:44 UTC) |
| 34,000 ft FL340 | 320° at 45 kt | −45 kt | -41 °C | 165 kt | 3 h 32 min | 10:30 am EDT (14:30 UTC) |
| 39,000 ft FL390 | 310° at 43 kt | −43 kt | -50 °C | 163 kt | 3 h 35 min | 10:33 am EDT (14:33 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| IND | used from 0 nm out; 74 nm from the line | 270/22 | 290/19 15° | 270/19 8° | 270/18 4° | 290/28 -7° | 280/35 -20° | 270/37 -34° | 300/51 -42° | 300/61 -51° |
| LOU | used from 99 nm out; 40 nm from the line | 300/16 | 310/19 15° | 310/17 9° | 300/15 4° | 300/26 -6° | 280/34 -19° | 290/30 -34° | 310/49 -42° | 310/58 -51° |
| TYS | used from 248 nm out; 60 nm from the line | 330/16 | 350/32 14° | 350/37 9° | 340/30 5° | 330/28 -6° | 340/36 -19° | 330/40 -33° | 330/51 -41° | 330/36 -51° |
| GSP | used from 347 nm out; 51 nm from the line | 340/30 | 360/24 13° | 350/29 10° | 340/33 6° | 340/40 -7° | 350/44 -19° | 340/59 -31° | 350/55 -41° | 300/29 -50° |
| CAE | used from 446 nm out; 31 nm from the line | 340/17 | 330/15 12° | 320/22 9° | 320/31 5° | 330/35 -7° | 320/33 -19° | 340/40 -32° | 350/43 -39° | 320/35 -49° |
| CHS | used from 545 nm out; 20 nm from the line | 330/14 | 300/17 14° | 320/21 9° | 310/26 6° | 310/32 -6° | 280/34 -19° | 260/37 -32° | 280/30 -39° | 310/30 -50° |
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 |
|---|---|---|---|---|---|---|---|
| CMI Champaign/Urbana, IL | departure | no report just now | 754 ft | ||||
| PRG Paris, IL | 30 nm out, 7 nm east of the line | no report just now | 654 ft | ||||
| HUF Terre Haute, IN | 59 nm out, 7 nm north of the line, tower | no report just now | 589 ft | ||||
| SDF Louisville, KY | 158 nm out, 7 nm east of the line, tower | no report just now | 500 ft | ||||
| BRY Bardstown, KY | 188 nm out, 2 nm west of the line | no report just now | 669 ft | ||||
| SME Somerset, KY | 248 nm out, 2 nm southwest of the line | no report just now | 927 ft | ||||
| MOR Morristown, TN | 327 nm out, 7 nm northeast of the line | no report just now | 1,312 ft | ||||
| AVL Asheville, NC | 386 nm out, 7 nm northeast of the line, tower | no report just now | 2,163 ft | ||||
| GSP Greer, SC | 426 nm out, 5 nm west of the line, tower | no report just now | 963 ft | ||||
| CAE Columbia, SC | 505 nm out, 3 nm northwest of the line, tower | no report just now | 235 ft | ||||
| DYB Summerville, SC | 564 nm out, 5 nm south of the line | no report just now | 55 ft | ||||
| CHS Charleston, SC | destination | no report just now | 46 ft |
The highest airport on this list sits at 2,163 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CHS when you get there the forecast at the estimated arrival, 10:30 am EDT (14:30 UTC)
CHS 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 CMI 6:18 pm CDT (23:18 UTC), at CHS 6:50 pm EDT (22:50 UTC) (civil twilight ends 7:15 pm EDT (23:15 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: University Of Illinois/Willard Airport, Charleston Afb/Intl Airport.
