San Antonio International to Dane County Rgnl/Truax Field SAT → MSN
927 nautical miles (1,067 statute miles) northeast on a straight line, true course 026°, about 022° magnetic at the departure end (variation 4E). At 120 knots that is 6 h 26 min at the quickest height in today's winds (3,500 ft, a 24-knot tailwind), arriving about 12:51 pm CDT (17:51 UTC). Right now SAT is marginal VFR, wind from the east-southeast (120°) at 5 knots; MSN is VFR, wind from the south (190°) at 7 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: 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 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 route from 369 to 798 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 SAT.
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 8 forecast points nearest it (SAT, CLL, DAL, FSM, SGF, COU, BRL, 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 |
|---|---|---|---|---|---|---|
| 3,500 ft | 230° at 25 kt | −24 kt | 144 kt | 6 h 26 min | 12:51 pm CDT (17:51 UTC) | |
| 5,500 ft | 230° at 20 kt | −18 kt | 138 kt | 6 h 43 min | 1:08 pm CDT (18:08 UTC) | |
| 7,500 ft | 230° at 17 kt | −15 kt | 14 °C | 135 kt | 6 h 52 min | 1:17 pm CDT (18:17 UTC) |
| 9,500 ft | 240° at 16 kt | −14 kt | 11 °C | 134 kt | 6 h 55 min | 1:20 pm CDT (18:20 UTC) |
| 11,500 ft | 250° at 16 kt | −13 kt | 8 °C | 133 kt | 6 h 58 min | 1:23 pm CDT (18:23 UTC) |
| 13,500 ft | 250° at 17 kt | −13 kt | 3 °C | 133 kt | 6 h 58 min | 1:23 pm CDT (18:23 UTC) |
| 15,500 ft | 250° at 19 kt | −14 kt | -1 °C | 134 kt | 6 h 55 min | 1:20 pm CDT (18:20 UTC) |
| 17,500 ft | 250° at 21 kt | −15 kt | -6 °C | 135 kt | 6 h 52 min | 1:17 pm CDT (18:17 UTC) |
| 18,000 ft FL180 | 250° at 21 kt | −15 kt | -7 °C | 135 kt | 6 h 52 min | 1:17 pm CDT (18:17 UTC) |
| 24,000 ft FL240 | 260° at 28 kt | −18 kt | -17 °C | 138 kt | 6 h 43 min | 1:08 pm CDT (18:08 UTC) |
| 30,000 ft FL300 | 280° at 43 kt | −16 kt | -31 °C | 136 kt | 6 h 49 min | 1:14 pm CDT (18:14 UTC) |
| 34,000 ft FL340 | 280° at 45 kt | −12 kt | -39 °C | 132 kt | 7 h 01 min | 1:26 pm CDT (18:26 UTC) |
| 39,000 ft FL390 | 300° at 47 kt | +1 kt | -50 °C | 119 kt | 7 h 47 min | 2:12 pm CDT (19:12 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAT | used from 0 nm out; 25 nm from the line | 160/18 | 180/22 17° | 190/16 14° | 210/16 9° | 220/16 -5° | 200/11 -14° | 250/8 -29° | 330/8 -40° | 020/26 -51° |
| CLL | used from 100 nm out; 73 nm from the line | 180/24 | 170/21 19° | 180/10 14° | 230/7 8° | 230/16 -6° | 260/20 -13° | 290/23 -29° | 320/21 -39° | 340/35 -51° |
| DAL | used from 150 nm out; 43 nm from the line | 190/30 | 200/28 18° | 220/18 13° | 250/13 8° | 240/24 -6° | 270/20 -14° | 270/35 -29° | 290/34 -39° | 310/41 -51° |
| FSM | used from 299 nm out; 85 nm from the line | 230/33 | 260/23 15° | 240/23 11° | 230/18 8° | 230/20 -8° | 250/31 -17° | 280/51 -30° | 280/52 -39° | 300/47 -51° |
| SGF | used from 449 nm out; 56 nm from the line | 230/37 | 260/20 15° | 250/16 13° | 250/15 8° | 260/28 -7° | 250/31 -17° | 280/59 -31° | 280/59 -39° | 290/55 -50° |
| COU | used from 598 nm out; 23 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| BRL | used from 698 nm out; 42 nm from the line | 250/32 | 250/19 17° | 260/15 11° | 270/16 3° | 290/23 -7° | 260/42 -20° | 270/52 -34° | 280/63 -39° | 290/64 -48° |
| DBQ | used from 798 nm out; 46 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 |
|---|---|---|---|---|---|---|---|
| SAT San Antonio, TX | departure | marginal VFR Sky: a broken layer at 1,800 feet, overcast at 2,800 feet | from the east-southeast (120°) at 5 knots | 10+ mi | 1,800 ft | 809 ft | 5:51 am CDT (10:51 UTC) |
| GTU Georgetown, TX | 80 nm out, 7 nm southeast of the line, tower | VFR Sky: scattered clouds at 3,100 feet, a broken layer at 16,000 feet, overcast at 22,000 feet | from the south-southeast (150°) at 5 knots | 10+ mi | 16,000 ft | 789 ft | 10:55 UTC |
| ACT Waco, TX | 140 nm out, 3 nm east of the line, tower | VFR | from the southeast (130°) at 6 knots | 10+ mi | none | 516 ft | 10:51 UTC |
| HQZ Mesquite, TX | 219 nm out, 5 nm southeast of the line, tower | VFR | from the east-southeast (110°) at 5 knots | 10+ mi | none | 446 ft | 11:15 UTC |
| HHW Hugo, OK | 309 nm out, 13 nm southeast of the line | VFR | from the south (170°) at 3 knots | 10+ mi | none | 572 ft | 11:10 UTC |
| XNA Fayetteville/Springdale/Rogers, AR | 459 nm out, 5 nm southeast of the line, tower | VFR | from the south (190°) at 6 knots | 10+ mi | none | 1,288 ft | 10:53 UTC |
| ROG Rogers, AR | 469 nm out, 10 nm southeast of the line, tower | VFR | from the south-southwest (200°) at 10 knots | 10+ mi | none | 1,358 ft | 10:58 UTC |
| COU Columbia, MO | 638 nm out, 18 nm southeast of the line, tower | VFR | from the south (180°) at 5 knots | 10+ mi | none | 889 ft | 10:54 UTC |
| EOK Keokuk, IA | 738 nm out, 4 nm northeast of the line | reported, no category | from the south-southwest (210°) at 9 knots | 10+ mi | none | 671 ft | 11:15 UTC |
| MLI Moline, IL | 818 nm out, 9 nm southeast of the line, tower | VFR | from the south-southwest (210°) at 5 knots | 10+ mi | none | 589 ft | 10:52 UTC |
| CWI Clinton, IA | 838 nm out, 3 nm southeast of the line | VFR Sky: a few clouds at 11,000 feet | from the south (170°) at 4 knots | 10+ mi | none | 707 ft | 10:56 UTC |
| MSN Madison, WI | destination | VFR Sky: a broken layer at 22,000 feet | from the south (190°) at 7 knots | 10+ mi | 22,000 ft | 886 ft | 5:53 am CDT (10:53 UTC) |
The highest airport on this list sits at 1,358 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, 12:51 pm CDT (17:51 UTC)
Wind from the southwest at 10 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for MSN
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the southwest at 10 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:00 pm CDT (02:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
- From Tue 1:00 am CDT (06:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for SAT, the departure
- From Mon 7:00 am CDT (12:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,500 feet
- At times between Mon 8:00 am CDT (13:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 2,500 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Tue 1:00 am CDT (06:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
- At times between Tue 4:00 am CDT (09:00 UTC) and 7:00 am CDT (12:00 UTC): a broken layer at 800 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 4 nm from the route, 120 nm along the route · security · ZFW
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 21 nm from the route, 199 nm along the route · drones kept away from a public gathering · starts Thursday 15 October · ZFW
- 9/2934 DALLAS, TX 12 nm from the route, 219 nm along the route · a VIP movement · ZFW
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 11 nm from the route, 658 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at SAT 7:05 pm CDT (00:05 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: San Antonio International, Dane County Rgnl/Truax Field.