Dekalb-Peachtree Airport to Dane County Rgnl/Truax Field PDK → MSN
604 nautical miles (695 statute miles) north on a straight line, true course 338°, about 343° magnetic at the departure end (variation 5W). At 120 knots that is 5 h 39 min at the quickest height in today's winds (4,500 ft, a 13-knot headwind), arriving about 1:47 pm CDT (18:47 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: 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 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 20 to 50 nm out.
- 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 30 to 337 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 40 to 50 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 79 to 99 nm out.
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 PDK.
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 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 7 forecast points nearest it (ATL, TYS, BNA, LOU, IND, 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 | 290° at 18 kt | +13 kt | 107 kt | 5 h 39 min | 1:47 pm CDT (18:47 UTC) | |
| 6,500 ft | 300° at 18 kt | +15 kt | 14 °C | 105 kt | 5 h 45 min | 1:53 pm CDT (18:53 UTC) |
| 8,500 ft | 300° at 17 kt | +14 kt | 10 °C | 106 kt | 5 h 42 min | 1:50 pm CDT (18:50 UTC) |
| 10,500 ft | 300° at 17 kt | +14 kt | 7 °C | 106 kt | 5 h 42 min | 1:50 pm CDT (18:50 UTC) |
| 12,500 ft | 300° at 18 kt | +14 kt | 4 °C | 106 kt | 5 h 42 min | 1:50 pm CDT (18:50 UTC) |
| 14,500 ft | 300° at 21 kt | +16 kt | 0 °C | 104 kt | 5 h 48 min | 1:56 pm CDT (18:56 UTC) |
| 16,500 ft | 300° at 24 kt | +19 kt | -4 °C | 101 kt | 5 h 59 min | 2:07 pm CDT (19:07 UTC) |
| 18,000 ft FL180 | 300° at 25 kt | +20 kt | -7 °C | 100 kt | 6 h 02 min | 2:10 pm CDT (19:10 UTC) |
| 24,000 ft FL240 | 290° at 31 kt | +23 kt | -19 °C | 97 kt | 6 h 14 min | 2:22 pm CDT (19:22 UTC) |
| 30,000 ft FL300 | 290° at 35 kt | +25 kt | -34 °C | 95 kt | 6 h 21 min | 2:29 pm CDT (19:29 UTC) |
| 34,000 ft FL340 | 300° at 49 kt | +40 kt | -42 °C | 80 kt | 7 h 33 min | 3:41 pm CDT (20:41 UTC) |
| 39,000 ft FL390 | 300° at 52 kt | +44 kt | -51 °C | 76 kt | 7 h 57 min | 4:05 pm CDT (21:05 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ATL | used from 0 nm out; 37 nm from the line | 330/32 | 340/36 17° | 350/34 10° | 340/25 6° | 330/27 -6° | 350/35 -18° | 330/49 -32° | 340/47 -41° | 340/27 -51° |
| TYS | used from 50 nm out; 63 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° |
| BNA | used from 149 nm out; 57 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
| LOU | used from 198 nm out; 57 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° |
| IND | used from 297 nm out; 58 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° |
| JOT | used from 396 nm out; 74 nm from the line | 250/25 | 260/22 14° | 250/17 9° | 270/21 5° | 280/28 -8° | 280/36 -20° | 270/41 -35° | 280/57 -42° | 290/65 -50° |
| DBQ | used from 594 nm out; 74 nm from the line | 250/27 | 260/23 17° | 240/26 10° | 260/30 4° | 280/26 -9° | 280/36 -21° | 270/41 -36° | 280/52 -41° | 290/67 -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 |
|---|---|---|---|---|---|---|---|
| PDK Atlanta, GA | departure | no report just now | 998 ft | ||||
| CNI Canton, GA | 30 nm out, 5 nm east of the line | no report just now | 1,219 ft | ||||
| CHA Chattanooga, TN | 79 nm out, 16 nm west of the line, tower | no report just now | 682 ft | ||||
| SRB Sparta, TN | 149 nm out, 9 nm southwest of the line | no report just now | 1,025 ft | ||||
| GLW Glasgow, KY | 208 nm out, 4 nm southwest of the line | no report just now | 716 ft | ||||
| FRH French Lick, IN | 297 nm out, 3 nm north of the line | no report just now | 792 ft | ||||
| BMG Bloomington, IN | 337 nm out, 16 nm east of the line, tower | no report just now | 845 ft | ||||
| HUF Terre Haute, IN | 366 nm out, 7 nm southwest of the line, tower | no report just now | 589 ft | ||||
| IKK Kankakee, IL | 465 nm out, 10 nm east of the line | no report just now | 629 ft | ||||
| ARR Chicago/Aurora, IL | 515 nm out, 2 nm southeast of the line, tower | no report just now | 712 ft | ||||
| JVL Janesville, WI | 574 nm out, 4 nm south 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 1,219 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, 1:47 pm CDT (18:47 UTC)
MSN has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8928 Atlanta, GA, Wednesday, October 14, 2026 Local 11 nm from the route, at the departure end · a VIP movement · starts Wednesday 14 October · ZTL
Daylight
Sunset at PDK 7:07 pm EDT (23:07 UTC), at MSN 6:19 pm CDT (23:19 UTC) (civil twilight ends 6:48 pm CDT (23:48 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: Dekalb-Peachtree Airport, Dane County Rgnl/Truax Field.