Gerald R Ford International to Savannah/Hilton Head International GRR → SAV
677 nautical miles (780 statute miles) south on a straight line, true course 161°, about 167° magnetic at the departure end (variation 6W). At 120 knots that is 4 h 19 min at the quickest height in today's winds (34,000 ft, a 37-knot tailwind), arriving about 6:03 am EDT (10:03 UTC), after sunset at the destination. Right now GRR is VFR, wind from the south (170°) at 3 knots; SAV is VFR, wind from the west-southwest (250°) at 5 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: 52 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 first 458 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 329 to 458 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 428 to 498 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 438 to 548 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 GRR.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- LJ45 at 10,000 ft, 31 nm southwest, 12:31 am EDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. 90 nm along the route, 31 nm southwest of the line.
as filed, and in English
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
- Report
- a routine report filed through FWA
- Where
- over OLK
- Time
- 04:31 UTC
- Height
- at 10,000 ft
- Aircraft
- LJ45
- Sky
- clear
- Turbulence
- smooth
- Remarks
- ground fog at fwa FV10SM on final runway 14
- B738 at 1,800 ft, 48 nm east, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 100 nm along the route, 48 nm east of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 05:18 UTC
- Height
- at 1,800 ft
- Aircraft
- B738
- Sky
- overcast from 1,800 ft, tops 2,700 ft
- Remarks
- during the climb
- B738 at 1,300 ft, 48 nm east, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 100 nm along the route, 48 nm east of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 04:45 UTC
- Height
- at 1,300 ft
- Aircraft
- B738
- Sky
- overcast from 1,300 ft, tops 3,000 ft
- Remarks
- during the descent
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 (MKG, FWA, CMH, CVG, TRI, GSP, CAE, SAV). 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 | 310° at 18 kt | −15 kt | 135 kt | 5 h 01 min | 6:45 am EDT (10:45 UTC) | |
| 5,500 ft | 330° at 20 kt | −19 kt | 11 °C | 139 kt | 4 h 52 min | 6:36 am EDT (10:36 UTC) |
| 7,500 ft | 330° at 22 kt | −21 kt | 11 °C | 141 kt | 4 h 48 min | 6:32 am EDT (10:32 UTC) |
| 9,500 ft | 330° at 23 kt | −22 kt | 8 °C | 142 kt | 4 h 46 min | 6:30 am EDT (10:30 UTC) |
| 11,500 ft | 320° at 23 kt | −21 kt | 5 °C | 141 kt | 4 h 48 min | 6:32 am EDT (10:32 UTC) |
| 13,500 ft | 320° at 24 kt | −22 kt | 1 °C | 142 kt | 4 h 46 min | 6:30 am EDT (10:30 UTC) |
| 15,500 ft | 310° at 26 kt | −23 kt | -3 °C | 143 kt | 4 h 44 min | 6:28 am EDT (10:28 UTC) |
| 17,500 ft | 310° at 29 kt | −24 kt | -6 °C | 144 kt | 4 h 42 min | 6:26 am EDT (10:26 UTC) |
| 18,000 ft FL180 | 310° at 29 kt | −25 kt | -7 °C | 145 kt | 4 h 40 min | 6:24 am EDT (10:24 UTC) |
| 24,000 ft FL240 | 310° at 34 kt | −29 kt | -19 °C | 149 kt | 4 h 33 min | 6:17 am EDT (10:17 UTC) |
| 30,000 ft FL300 | 310° at 37 kt | −32 kt | -34 °C | 152 kt | 4 h 27 min | 6:11 am EDT (10:11 UTC) |
| 34,000 ft FL340 | 310° at 45 kt | −37 kt | -41 °C | 157 kt | 4 h 19 min | 6:03 am EDT (10:03 UTC) |
| 39,000 ft FL390 | 310° at 42 kt | −35 kt | -49 °C | 155 kt | 4 h 22 min | 6:06 am EDT (10:06 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MKG | used from 0 nm out; 57 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| FWA | used from 50 nm out; 45 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| CMH | used from 149 nm out; 65 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -47° |
| CVG | used from 199 nm out; 38 nm from the line | 320/18 | 350/32 16° | 350/35 10° | 350/30 3° | 330/30 -7° | 340/44 -20° | 340/58 -35° | 330/72 -41° | 320/36 -49° |
| TRI | used from 299 nm out; 88 nm from the line | 330/22 11° | 330/29 7° | 330/32 3° | 330/36 -8° | 320/34 -19° | 320/36 -34° | 320/43 -39° | 320/46 -47° | |
| GSP | used from 448 nm out; 30 nm from the line | 320/22 | 340/19 13° | 320/18 8° | 310/24 5° | 300/34 -7° | 300/36 -18° | 290/30 -33° | 300/32 -39° | 320/42 -49° |
| CAE | used from 548 nm out; 35 nm from the line | 330/15 | 330/13 12° | 330/22 9° | 300/26 6° | 280/33 -7° | 270/38 -18° | 250/45 -33° | 240/46 -40° | 270/38 -49° |
| SAV | used from 598 nm out; 55 nm from the line | 280/23 | 300/22 14° | 290/27 11° | 270/31 6° | 260/36 -5° | 260/38 -17° | 240/49 -32° | 230/68 -40° | 230/59 -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 |
|---|---|---|---|---|---|---|---|
| GRR Grand Rapids, MI | departure | VFR Weather: mist | from the south (170°) at 3 knots | 6 mi | none | 793 ft | 12:53 am EDT (04:53 UTC) |
| BTL Battle Creek, MI | 40 nm out, 3 nm north of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 951 ft | 04:53 UTC |
| FWA Fort Wayne, IN | 110 nm out, 23 nm southwest of the line, tower | VFR Sky: a few clouds at 400 feet Weather: mist, shallow fog | from the southwest (220°) at 5 knots | 6 mi | none | 814 ft | 04:54 UTC |
| DAY Dayton, OH | 189 nm out, 2 nm west of the line, tower | marginal VFR Sky: overcast at 1,400 feet | from the west (280°) at 4 knots | 10+ mi | 1,400 ft | 1,009 ft | 04:56 UTC |
| ILN Wilmington, OH | 219 nm out, 9 nm east of the line, tower | marginal VFR Sky: overcast at 1,100 feet | from the west-northwest (300°) at 5 knots | 10+ mi | 1,100 ft | 1,076 ft | 05:40 UTC |
| JKL Jackson, KY | 329 nm out, 6 nm southwest of the line | low IFR Sky: overcast at 200 feet Weather: mist | variable at 3 knots | 3 mi | 200 ft | 1,380 ft | 05:20 UTC |
| CPF Hazard, KY | 349 nm out, 6 nm west of the line | low IFR Sky: overcast at 400 feet Weather: mist | from the west (280°) at 4 knots | 4 mi | 400 ft | 1,256 ft | 05:55 UTC |
| AVL Asheville, NC | 468 nm out, 7 nm west of the line, tower | marginal VFR Sky: a broken layer at 2,800 feet | from the north (360°) at 6 knots | 10+ mi | 2,800 ft | 2,163 ft | 05:12 UTC |
| GSP Greer, SC | 508 nm out, 5 nm northwest of the line, tower | VFR | variable at 3 knots | 10+ mi | none | 963 ft | 04:53 UTC |
| AGS Augusta, GA | 598 nm out, 16 nm west of the line, tower | VFR | from the southwest (230°) at 4 knots | 10+ mi | none | 145 ft | 04:53 UTC |
| JYL Sylvania, GA | 638 nm out, 11 nm southwest of the line | reported, no category | calm | 10+ mi | none | 190 ft | 05:35 UTC |
| SAV Savannah, GA | destination | VFR | from the west-southwest (250°) at 5 knots | 10+ mi | none | 50 ft | 12:53 am EDT (04:53 UTC) |
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 SAV when you get there the forecast at the estimated arrival, 6:03 am EDT (10:03 UTC)
Wind from the west at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for SAV
- From Mon 2:00 am EDT (06:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm EDT (00:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
The forecast for GRR, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- At times between Mon 2:00 am EDT (06:00 UTC) and 4:00 am EDT (08:00 UTC): visibility 5 miles, mist
- From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a broken layer at 20,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 8,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind from the south at 8 knots, visibility 4 miles, light rain showers, mist, scattered clouds at 5,000 feet, overcast at 8,000 feet
- 30% chance between Mon 10:00 pm EDT (02:00 UTC) and 2:00 am EDT (06:00 UTC): visibility 2 miles, light thunderstorms with rain, mist, overcast at 3,500 feet (thunderheads)
Temporary flight restrictions on the line or within 25 nm of it
- 6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 229 nm along the route · a VIP movement · until 12 October · ZID
Daylight
Sunset at GRR 7:04 pm EDT (23:04 UTC), at SAV 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:20 pm EDT (23:20 UTC)). At 120 knots the arrival at SAV is before sunrise there (7:26 am EDT (11:26 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: Gerald R Ford International, Savannah/Hilton Head International.
