Green Bay/Austin Straubel International to Salina Regional GRB → SLN
547 nautical miles (629 statute miles) southwest on a straight line, true course 235°, about 237° magnetic at the departure end (variation 2W). At 120 knots that is 5 h 38 min at the quickest height in today's winds (8,500 ft, a 23-knot headwind), arriving about 1:45 pm CDT (18:45 UTC). Right now GRB is VFR, wind from the southwest (220°) at 3 knots; SLN is VFR, wind from the south (190°) at 14 knots, gusting to 22. 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 last 368 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 GRB.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E170 at 15,000 ft, 33 nm northwest, 6:56 am CDT (11:56 UTC): moderate chop turbulence. 60 nm along the route, 33 nm northwest of the line.
as filed, and in English
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
- Report
- a routine report filed through Y50
- Where
- 25 nm northwest (330°) of Y50
- Time
- 11:56 UTC
- Height
- at 15,000 ft
- Aircraft
- E170
- Turbulence
- moderate chop
- B752 at 34,000 ft, 15 nm southeast, 7:23 am CDT (12:23 UTC): light chop turbulence. 169 nm along the route, 15 nm southeast of the line.
as filed, and in English
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
- Report
- a routine report filed through DBQ
- Where
- 20 nm northwest (300°) of DBQ
- Time
- 12:23 UTC
- Height
- at 34,000 ft
- Aircraft
- B752
- Turbulence
- occasional light chop
- A321 at 32,000 ft, 22 nm southeast, 7:25 am CDT (12:25 UTC): light chop turbulence. 219 nm along the route, 22 nm southeast of the line.
as filed, and in English
CID UA /OV CID360010/TM 1225/FL320/TP A321/TB INTMT LGT CHOP CONS LGT CHOP
- Report
- a routine report filed through CID
- Where
- 10 nm north (360°) of CID
- Time
- 12:25 UTC
- Height
- at 32,000 ft
- Aircraft
- A321
- Turbulence
- intermittent light chop continuous light chop
- PC12 at 22,000 ft, 14 nm southeast, 7:00 am CDT (12:00 UTC): light rime icing, -9 °C, remarks: no icing at FL200 zkcfdc xj. 497 nm along the route, 14 nm southeast of the line.
as filed, and in English
MHK UA /OV MHK/TM 1200/FL220/TP PC12/TA M09/IC LGT RIME/RM NEG ICING AT FL200 /ZKCFDC XJ
- Report
- a routine report filed through MHK
- Where
- over MHK
- Time
- 12:00 UTC
- Height
- at 22,000 ft
- Aircraft
- PC12
- Temperature
- −9 °C
- Icing
- light rime
- Remarks
- no icing at FL200 zkcfdc xj
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 6 forecast points nearest it (GRB, LSE, DBQ, DSM, OMA, SLN). 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 33 kt | +32 kt | 88 kt | 6 h 13 min | 2:20 pm CDT (19:20 UTC) | |
| 6,500 ft | 250° at 27 kt | +26 kt | 18 °C | 94 kt | 5 h 49 min | 1:56 pm CDT (18:56 UTC) |
| 8,500 ft | 240° at 23 kt | +23 kt | 13 °C | 97 kt | 5 h 38 min | 1:45 pm CDT (18:45 UTC) |
| 10,500 ft | 240° at 23 kt | +23 kt | 8 °C | 97 kt | 5 h 38 min | 1:45 pm CDT (18:45 UTC) |
| 12,500 ft | 250° at 25 kt | +24 kt | 4 °C | 96 kt | 5 h 42 min | 1:49 pm CDT (18:49 UTC) |
| 14,500 ft | 250° at 26 kt | +25 kt | 0 °C | 95 kt | 5 h 45 min | 1:52 pm CDT (18:52 UTC) |
| 16,500 ft | 260° at 28 kt | +26 kt | -6 °C | 94 kt | 5 h 49 min | 1:56 pm CDT (18:56 UTC) |
| 18,000 ft FL180 | 260° at 29 kt | +27 kt | -9 °C | 93 kt | 5 h 53 min | 2:00 pm CDT (19:00 UTC) |
| 24,000 ft FL240 | 260° at 37 kt | +32 kt | -21 °C | 88 kt | 6 h 13 min | 2:20 pm CDT (19:20 UTC) |
| 30,000 ft FL300 | 260° at 48 kt | +41 kt | -34 °C | 79 kt | 6 h 55 min | 3:02 pm CDT (20:02 UTC) |
| 34,000 ft FL340 | 270° at 57 kt | +44 kt | -39 °C | 76 kt | 7 h 12 min | 3:19 pm CDT (20:19 UTC) |
| 39,000 ft FL390 | 280° at 61 kt | +42 kt | -48 °C | 78 kt | 7 h 01 min | 3:08 pm CDT (20:08 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GRB | used from 0 nm out; 25 nm from the line | 250/32 | 250/22 17° | 240/18 8° | 280/21 6° | 280/34 -11° | 280/35 -21° | 280/39 -37° | 270/52 -45° | 290/60 -49° |
| LSE | used from 99 nm out; 51 nm from the line | 250/25 | 240/21 17° | 240/28 11° | 250/28 5° | 280/24 -10° | 280/31 -21° | 260/35 -37° | 270/45 -43° | 280/59 -47° |
| DBQ | used from 149 nm out; 35 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° |
| DSM | used from 248 nm out; 28 nm from the line | 250/47 | 260/25 20° | 240/19 11° | 240/31 5° | 250/26 -9° | 260/38 -20° | 260/47 -34° | 270/58 -37° | 270/61 -47° |
| OMA | used from 348 nm out; 62 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
| SLN | used from 447 nm out; 75 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° |
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 |
|---|---|---|---|---|---|---|---|
| GRB Green Bay, WI | departure | VFR | from the southwest (220°) at 3 knots | 10+ mi | none | 695 ft | 7:53 am CDT (12:53 UTC) |
| ATW Appleton, WI | 20 nm out, 2 nm south of the line, tower | VFR Sky: scattered clouds at 12,000 feet | from the south (180°) at 5 knots | 10+ mi | none | 918 ft | 12:45 UTC |
| DLL Baraboo, WI | 89 nm out, 5 nm south of the line | VFR | from the southwest (220°) at 5 knots | 10+ mi | none | 980 ft | 12:55 UTC |
| OVS Boscobel, WI | 139 nm out, 3 nm northeast of the line | VFR | calm | 10+ mi | none | 672 ft | 12:53 UTC |
| IIB Independence, IA | 209 nm out, 3 nm north of the line | VFR Sky: scattered clouds at 10,000 feet | from the south (170°) at 6 knots | 10+ mi | none | 979 ft | 12:55 UTC |
| ALO Waterloo, IA | 219 nm out, 19 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 873 ft | 12:54 UTC |
| DSM Des Moines, IA | 298 nm out, 7 nm northwest of the line, tower | VFR Sky: a few clouds at 10,000 feet, scattered clouds at 20,000 feet, scattered clouds at 25,000 feet | from the south (170°) at 4 knots | 10+ mi | none | 957 ft | 12:54 UTC |
| CSQ Creston, IA | 348 nm out, 4 nm north of the line | VFR | from the south (190°) at 11 knots | 10+ mi | none | 1,299 ft | 12:55 UTC |
| FNB Falls City, NE | 427 nm out, 6 nm east of the line | VFR | from the south (180°) at 9 knots, gusting to 19 | 10+ mi | none | 983 ft | 12:53 UTC |
| MYZ Marysville, KS | 467 nm out, 17 nm northwest of the line | VFR | from the south (180°) at 10 knots, gusting to 14 | 10+ mi | none | 1,283 ft | 12:55 UTC |
| MHK Manhattan, KS | 497 nm out, 15 nm southeast of the line, tower | VFR | from the south-southwest (210°) at 12 knots, gusting to 18 | 10+ mi | none | 1,066 ft | 12:52 UTC |
| SLN Salina, KS | destination | VFR | from the south (190°) at 14 knots, gusting to 22 | 10+ mi | none | 1,288 ft | 7:53 am CDT (12:53 UTC) |
The highest airport on this list sits at 1,299 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SLN when you get there the forecast at the estimated arrival, 1:45 pm CDT (18:45 UTC)
Wind from the south-southwest at 18 knots, gusting to 26, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet VFR
The whole forecast for SLN
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 15 knots, gusting to 23, visibility more than 6 miles, low-level wind shear, scattered clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 18 knots, gusting to 26, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 13 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Tue 3:00 am CDT (08:00 UTC): wind from the east-northeast at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for GRB, the departure
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the east-southeast at 3 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 10,000 feet
- 30% chance between Mon 9:00 pm CDT (02:00 UTC) and 11:00 pm CDT (04:00 UTC): light rain showers, a broken layer at 6,000 feet
- From Mon 11:00 pm CDT (04:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Tue 3:00 am CDT (08:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, scattered clouds at 2,000 feet
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 GRB 6:13 pm CDT (23:13 UTC), at SLN 6:56 pm CDT (23:56 UTC) (civil twilight ends 7:23 pm CDT (00:23 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: Green Bay/Austin Straubel International, Salina Regional.
