Salina Regional to Purdue University Airport SLN → LAF
505 nautical miles (581 statute miles) east on a straight line, true course 075°, about 068° magnetic at the departure end (variation 7E). At 120 knots that is 2 h 50 min at the quickest height in today's winds (34,000 ft, a 58-knot tailwind), arriving about 9:32 am EDT (13:32 UTC). Right now SLN is VFR, wind from the south (190°) at 16 knots, gusting to 25; LAF is VFR, wind calm. 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 317 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 SLN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A21N at 31,000 ft, 11 nm northwest, 5:33 am CDT (10:33 UTC): no turbulence, remarks: during the climb. At the destination end, 11 nm northwest of the line.
as filed, and in English
LAF UA /OV BVT/TM 1033/FL310/TP A21N/TB NEG/RM DURC
- Report
- a routine report filed through LAF
- Where
- over BVT
- Time
- 10:33 UTC
- Height
- at 31,000 ft
- Aircraft
- A21N
- Turbulence
- none
- Remarks
- during the climb
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 (SLN, MKC, COU, BRL, SPI, IND). 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 | 250° at 34 kt | −34 kt | 154 kt | 3 h 17 min | 9:59 am EDT (13:59 UTC) | |
| 5,500 ft | 250° at 23 kt | −23 kt | 143 kt | 3 h 32 min | 10:14 am EDT (14:14 UTC) | |
| 7,500 ft | 250° at 18 kt | −17 kt | 14 °C | 137 kt | 3 h 41 min | 10:23 am EDT (14:23 UTC) |
| 9,500 ft | 240° at 15 kt | −15 kt | 10 °C | 135 kt | 3 h 44 min | 10:26 am EDT (14:26 UTC) |
| 11,500 ft | 250° at 17 kt | −17 kt | 6 °C | 137 kt | 3 h 41 min | 10:23 am EDT (14:23 UTC) |
| 13,500 ft | 250° at 19 kt | −19 kt | 2 °C | 139 kt | 3 h 38 min | 10:20 am EDT (14:20 UTC) |
| 15,500 ft | 260° at 22 kt | −22 kt | -2 °C | 142 kt | 3 h 33 min | 10:15 am EDT (14:15 UTC) |
| 17,500 ft | 270° at 25 kt | −25 kt | -6 °C | 145 kt | 3 h 29 min | 10:11 am EDT (14:11 UTC) |
| 18,000 ft FL180 | 270° at 26 kt | −26 kt | -7 °C | 146 kt | 3 h 28 min | 10:10 am EDT (14:10 UTC) |
| 24,000 ft FL240 | 260° at 36 kt | −36 kt | -19 °C | 156 kt | 3 h 14 min | 9:56 am EDT (13:56 UTC) |
| 30,000 ft FL300 | 270° at 57 kt | −55 kt | -32 °C | 175 kt | 2 h 53 min | 9:35 am EDT (13:35 UTC) |
| 34,000 ft FL340 | 280° at 61 kt | −58 kt | -39 °C | 178 kt | 2 h 50 min | 9:32 am EDT (13:32 UTC) |
| 39,000 ft FL390 | 290° at 60 kt | −52 kt | -49 °C | 172 kt | 2 h 56 min | 9:38 am EDT (13:38 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SLN | used from 0 nm out; 25 nm from the line | 230/49 | 240/41 22° | 230/26 15° | 220/21 7° | 240/38 -8° | 240/44 -21° | 260/77 -29° | 270/70 -36° | 270/63 -48° |
| MKC | used from 49 nm out; 71 nm from the line | 240/49 | 240/21 20° | 220/19 13° | 230/21 6° | 260/26 -7° | 250/37 -19° | 270/66 -31° | 270/65 -38° | 280/60 -48° |
| COU | used from 198 nm out; 60 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 297 nm out; 52 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° |
| SPI | used from 346 nm out; 15 nm from the line | 260/28 | 250/22 15° | 250/14 9° | 260/20 6° | 280/27 -7° | 280/34 -19° | 280/48 -32° | 280/59 -41° | 300/60 -49° |
| IND | used from 445 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° |
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 |
|---|---|---|---|---|---|---|---|
| SLN Salina, KS | departure | VFR | from the south (190°) at 16 knots, gusting to 25 | 10+ mi | none | 1,288 ft | 4:53 am CDT (09:53 UTC) |
| MHK Manhattan, KS | 49 nm out, 9 nm north of the line, tower | VFR | from the south-southwest (210°) at 9 knots | 10+ mi | none | 1,066 ft | 09:52 UTC |
| TOP Topeka, KS | 99 nm out, 7 nm south of the line, tower | VFR | from the south (180°) at 11 knots, gusting to 19 | 10+ mi | none | 881 ft | 09:53 UTC |
| MCI Kansas City, MO | 139 nm out, 3 nm southeast of the line, tower | VFR | from the south-southwest (200°) at 14 knots, gusting to 22 | 10+ mi | none | 1,027 ft | 09:53 UTC |
| GPH Mosby, MO | 158 nm out, 5 nm south of the line | VFR | from the southeast (140°) at 4 knots | 10+ mi | none | 777 ft | 10:35 UTC |
| MBY Moberly, MO | 247 nm out, 15 nm south of the line | VFR | from the south-southwest (200°) at 8 knots | 10+ mi | none | 866 ft | 10:35 UTC |
| HAE Hannibal, MO | 297 nm out, 9 nm south of the line | VFR | from the south (190°) at 5 knots | 10+ mi | none | 768 ft | 10:35 UTC |
| UIN Quincy, IL | 307 nm out, 3 nm north of the line | VFR | from the south (190°) at 7 knots | 10+ mi | none | 768 ft | 09:54 UTC |
| SPI Springfield, IL | 376 nm out, 15 nm south of the line, tower | VFR | from the south-southwest (200°) at 6 knots | 10+ mi | none | 597 ft | 09:52 UTC |
| CMI Champaign/Urbana, IL | 445 nm out, 14 nm south of the line, tower | VFR | from the south-southwest (200°) at 4 knots | 10+ mi | none | 754 ft | 09:53 UTC |
| DNV Danville, IL | 475 nm out, 9 nm south of the line | no report just now | 696 ft | ||||
| LAF Lafayette, IN | destination | VFR | calm | 10+ mi | none | 605 ft | 5:54 am EDT (09:54 UTC) |
The highest airport on this list sits at 1,288 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAF when you get there the forecast at the estimated arrival, 9:32 am EDT (13:32 UTC)
Wind light and variable, visibility 6 miles, mist, shallow fog, a few clouds at 200 feet VFR
The whole forecast for LAF
- From Mon 6:00 am EDT (10:00 UTC): wind calm, visibility 3 miles, mist, shallow fog, a few clouds at 25,000 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 8:00 am EDT (12:00 UTC): visibility 1 mile, mist, shallow fog, overcast at 200 feet
- From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility 6 miles, mist, shallow fog, a few clouds at 200 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the southwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 20,000 feet
The forecast for SLN, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 18 knots, gusting to 28, visibility more than 6 miles, a few clouds at 25,000 feet
- From Tue 12:00 am CDT (05:00 UTC): wind from the south-southwest at 13 knots, gusting to 21, 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 SLN 6:56 pm CDT (23:56 UTC), at LAF 7:12 pm EDT (23:12 UTC) (civil twilight ends 7:40 pm EDT (23:40 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: Salina Regional, Purdue University Airport.