Gerald R Ford International to Lehigh Valley International GRR → ABE
471 nautical miles (542 statute miles) east on a straight line, true course 103°, about 109° magnetic at the departure end (variation 6W). At 120 knots that is 2 h 58 min at the quickest height in today's winds (39,000 ft, a 39-knot tailwind), arriving about 12:05 am EDT (04:05 UTC), after sunset at the destination. Right now GRR is VFR, wind from the south (170°) at 5 knots; ABE is IFR, wind from the northeast (050°) 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: 3 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 route from 69 to 127 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 235 to 451 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 275 to 441 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 last 167 nm of the route.
- 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 137 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 137 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 GRR.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 at 33,000 ft, 31 nm south, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 29 nm along the route, 31 nm south of the line.
as filed, and in English
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
- Report
- a routine report filed through JXN
- Where
- 30 nm west (280°) of JXN
- Time
- 00:36 UTC
- Height
- at 33,000 ft
- Aircraft
- A320
- Turbulence
- occasional moderate at 33,000 ft
- Remarks
- zob
- E145 at 12,000 ft, 43 nm south, 8:43 pm EDT (00:43 UTC): moderate turbulence. 441 nm along the route, 43 nm south of the line.
as filed, and in English
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
- Report
- a routine report filed through LNS
- Where
- over LRP
- Time
- 00:43 UTC
- Height
- at 12,000 ft
- Aircraft
- E145
- Turbulence
- continuous moderate
- A21N at 18,000 ft, 26 nm south, 8:38 pm EDT (00:38 UTC): moderate clear-air turbulence. At the destination end, 26 nm south of the line.
as filed, and in English
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
- Report
- a routine report filed through PTW
- Where
- over PTW
- Time
- 00:38 UTC
- Height
- at 18,000 ft
- Aircraft
- A21N
- Turbulence
- moderate clear-air turbulence
- B38M at 25,000 ft, 47 nm southeast, 6:25 pm EDT (22:25 UTC): moderate turbulence. At the destination end, 47 nm southeast of the line.
as filed, and in English
TEB UA /OV 3958N 07457W/TM 2225/FL250/TP B38M/TB MOD
- Report
- a routine report filed through TEB
- Where
- 3958N 07457W
- Time
- 22:25 UTC
- Height
- at 25,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- B38M at 31,000 ft, 38 nm south, 8:04 pm EDT (00:04 UTC): light chop turbulence up to 31,000 ft. At the departure end, 38 nm south of the line.
as filed, and in English
AZO UA /OV AZO/TM 0004/FL310/TP B38M/TB CONS LGT CHOP 310 BLO
- Report
- a routine report filed through AZO
- Where
- over AZO
- Time
- 00:04 UTC
- Height
- at 31,000 ft
- Aircraft
- B38M
- Turbulence
- continuous light chop at 31,000 ft below
- F2TH at 3,100 ft, 31 nm south, 7:40 pm EDT (23:40 UTC): remarks: tops 3,100 ft. 20 nm along the route, 31 nm south of the line.
as filed, and in English
AZO UA /OV BTL/TM 2340/FL031/TP F2TH/RM TOPS 031
- Report
- a routine report filed through AZO
- Where
- over BTL
- Time
- 23:40 UTC
- Height
- at 3,100 ft
- Aircraft
- F2TH
- Remarks
- tops 3,100 ft
- CRJ2 descending, 24 nm north, 6:30 pm EDT (22:30 UTC): overcast from 1,900 ft to 2,900 ft. 78 nm along the route, 24 nm north of the line.
as filed, and in English
FNT UA /OV FNT/TM 2230/FLDURD/TP CRJ2/SK OVC019 - TOP029
- Report
- a routine report filed through FNT
- Where
- over FNT
- Time
- 22:30 UTC
- Height
- during the descent
- Aircraft
- CRJ2
- Sky
- overcast from 1,900 ft, tops 2,900 ft
- C550 at 2,300 ft, 11 nm northeast, 8:46 pm EDT (00:46 UTC): remarks: fis 4 mile final. 88 nm along the route, 11 nm northeast of the line.
as filed, and in English
PTK UA /OV 4W/TM 0046/FL023/TP C550/RM FIS 4 MILE FINAL
- Report
- a routine report filed through PTK
- Where
- 4W
- Time
- 00:46 UTC
- Height
- at 2,300 ft
- Aircraft
- C550
- Remarks
- fis 4 mile final
- GLF5 at 9,000 ft, 11 nm northeast, 7:13 pm EDT (23:13 UTC): overcast from 1,500 ft to 4,000 ft. 88 nm along the route, 11 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 7E/TM 2313/FL090/TP GLF5/SK OVC015-TOP040
- Report
- a routine report filed through PTK
- Where
- ptk 7E
- Time
- 23:13 UTC
- Height
- at 9,000 ft
- Aircraft
- GLF5
- Sky
- overcast from 1,500 ft, tops 4,000 ft
- PA32 at 1,500 ft, 11 nm northeast, 7:03 pm EDT (23:03 UTC): overcast above 1,500 ft. 88 nm along the route, 11 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK 1W/TM 2303/FL015/TP PA32/SK OVC015
- Report
- a routine report filed through PTK
- Where
- ptk 1W
- Time
- 23:03 UTC
- Height
- at 1,500 ft
- Aircraft
- PA32
- Sky
- overcast from 1,500 ft
- BE36 at 3,000 ft, 7 nm south, 6:20 pm EDT (22:20 UTC): no turbulence, imc. 88 nm along the route, 7 nm south of the line.
as filed, and in English
DTW UA /OV SVM/TM 2220/FL030/TP BE36/SK IMC/TB SMOOTH
- Report
- a routine report filed through DTW
- Where
- over SVM
- Time
- 22:20 UTC
- Height
- at 3,000 ft
- Aircraft
- BE36
- Sky
- instrument conditions
- Turbulence
- smooth
- H25B at 1,500 ft, 10 nm northeast, 6:20 pm EDT (22:20 UTC): overcast above 1,700 ft. 88 nm along the route, 10 nm northeast of the line.
as filed, and in English
PTK UA /OV PTK270001/TM 2220/FL015/TP H25B/SK OVC017-TOPUNKN
- Report
- a routine report filed through PTK
- Where
- 1 nm west (270°) of PTK
- Time
- 22:20 UTC
- Height
- at 1,500 ft
- Aircraft
- H25B
- Sky
- overcast from 1,700 ft, tops unknown
- A21N descending, 17 nm south, 8:22 pm EDT (00:22 UTC): overcast above 1,500 ft. 98 nm along the route, 17 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0022/FLDURD/TP A21N/SK OVC015
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:22 UTC
- Height
- during the descent
- Aircraft
- A21N
- Sky
- overcast from 1,500 ft
- CRJ9 descending, 17 nm south, 8:08 pm EDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. 98 nm along the route, 17 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0008/FLDURD/TP CRJ9/SK OVC 011/RM FINAL RY 4L
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 00:08 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- overcast from 1,100 ft
- Remarks
- final runway 4L
16 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 5 forecast points nearest it (MKG, CLE, AGC, PSB, AVP). 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 | 120° at 5 kt | +5 kt | 115 kt | 4 h 06 min | 1:13 am EDT (05:13 UTC) | |
| 5,500 ft | 260° at 6 kt | −5 kt | 13 °C | 125 kt | 3 h 46 min | 12:53 am EDT (04:53 UTC) |
| 7,500 ft | 270° at 9 kt | −8 kt | 11 °C | 128 kt | 3 h 41 min | 12:48 am EDT (04:48 UTC) |
| 9,500 ft | 280° at 9 kt | −9 kt | 7 °C | 129 kt | 3 h 39 min | 12:46 am EDT (04:46 UTC) |
| 11,500 ft | 280° at 9 kt | −9 kt | 4 °C | 129 kt | 3 h 39 min | 12:46 am EDT (04:46 UTC) |
| 13,500 ft | 280° at 10 kt | −10 kt | 0 °C | 130 kt | 3 h 37 min | 12:44 am EDT (04:44 UTC) |
| 15,500 ft | 270° at 12 kt | −11 kt | -5 °C | 131 kt | 3 h 36 min | 12:43 am EDT (04:43 UTC) |
| 17,500 ft | 260° at 15 kt | −13 kt | -9 °C | 133 kt | 3 h 32 min | 12:39 am EDT (04:39 UTC) |
| 18,000 ft FL180 | 260° at 15 kt | −14 kt | -10 °C | 134 kt | 3 h 31 min | 12:38 am EDT (04:38 UTC) |
| 24,000 ft FL240 | 260° at 14 kt | −12 kt | -22 °C | 132 kt | 3 h 34 min | 12:41 am EDT (04:41 UTC) |
| 30,000 ft FL300 | 260° at 34 kt | −28 kt | -34 °C | 148 kt | 3 h 11 min | 12:18 am EDT (04:18 UTC) |
| 34,000 ft FL340 | 240° at 46 kt | −33 kt | -42 °C | 153 kt | 3 h 05 min | 12:12 am EDT (04:12 UTC) |
| 39,000 ft FL390 | 250° at 50 kt | −39 kt | -49 °C | 159 kt | 2 h 58 min | 12:05 am EDT (04:05 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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; 60 nm from the line | 250/5 | 320/10 15° | 310/19 9° | 320/21 3° | 310/23 -10° | 330/37 -22° | 330/51 -38° | 320/44 -47° | 300/60 -49° |
| CLE | used from 98 nm out; 73 nm from the line | 340/5 | 320/13 14° | 300/12 8° | 310/10 2° | 310/14 -10° | 340/14 -23° | 320/27 -35° | 260/28 -40° | 250/36 -48° |
| AGC | used from 245 nm out; 82 nm from the line | 140/12 | 350/10 12° | L/V 9° | L/V 3° | 200/11 -11° | 220/21 -22° | 220/47 -33° | 230/51 -39° | 230/45 -48° |
| PSB | used from 294 nm out; 42 nm from the line | 260/13 13° | 220/12 8° | 220/11 4° | 230/27 -11° | 210/31 -21° | 220/73 -32° | 220/75 -40° | 230/66 -50° | |
| AVP | used from 392 nm out; 44 nm from the line | 110/36 | 190/34 13° | 230/11 8° | 230/16 4° | 230/26 -8° | 220/40 -19° | 230/73 -33° | 230/98 -41° | 230/87 -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 Sky: a few clouds at 25,000 feet | from the south (170°) at 5 knots | 10+ mi | none | 793 ft | 8:53 pm EDT (00:53 UTC) |
| LAN Lansing, MI | 39 nm out, 4 nm northeast of the line, tower | marginal VFR Sky: overcast at 1,500 feet | from the south (190°) at 3 knots | 10+ mi | 1,500 ft | 860 ft | 00:53 UTC |
| PTK Pontiac, MI | 88 nm out, 11 nm northeast of the line, tower | IFR Sky: a broken layer at 500 feet, overcast at 1,000 feet Weather: mist | calm | 5 mi | 500 ft | 980 ft | 00:53 UTC |
| DET Detroit, MI | 118 nm out, 3 nm west of the line, tower | IFR Sky: overcast at 500 feet Weather: mist | calm | 6 mi | 500 ft | 624 ft | 01:01 UTC |
| HZY Ashtabula, OH | 225 nm out, 10 nm southwest of the line | IFR Sky: scattered clouds at 2,400 feet, overcast at 8,000 feet Weather: mist | calm | 2 mi | 8,000 ft | 926 ft | 00:59 UTC |
| ERI Erie, PA | 245 nm out, 15 nm north of the line, tower | marginal VFR Sky: overcast at 3,000 feet | variable at 4 knots | 10+ mi | 3,000 ft | 732 ft | 00:51 UTC |
| OYM St Marys, PA | 324 nm out, 2 nm south of the line | no report just now | 1,934 ft | ||||
| UNV State College, PA | 363 nm out, 25 nm south of the line, tower | low IFR Sky: overcast at 300 feet Weather: rain, mist | from the north-northeast (030°) at 6 knots | 2.5 mi | 300 ft | 1,231 ft | 00:53 UTC |
| IPT Williamsport, PA | 392 nm out, 12 nm northeast of the line, tower | marginal VFR Sky: a few clouds at 1,300 feet, overcast at 2,400 feet | calm | 10+ mi | 2,400 ft | 528 ft | 00:54 UTC |
| RDG Reading, PA | 451 nm out, 24 nm south of the line, tower | marginal VFR Sky: overcast at 1,200 feet | from the northeast (050°) at 6 knots | 10+ mi | 1,200 ft | 343 ft | 00:54 UTC |
| ABE Allentown, PA | destination | IFR Sky: a broken layer at 800 feet, overcast at 1,400 feet | from the northeast (050°) at 7 knots | 10+ mi | 800 ft | 393 ft | 8:51 pm EDT (00:51 UTC) |
The highest airport on this list sits at 1,934 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ABE when you get there the forecast at the estimated arrival, 12:05 am EDT (04:05 UTC)
Wind from the north-northeast at 8 knots, visibility 6 miles, light rain, mist, overcast at 800 feet IFR
The whole forecast for ABE
- From Sun 8:00 pm EDT (00:00 UTC): wind from the north-northeast at 8 knots, visibility 6 miles, light rain, mist, overcast at 800 feet
- At times between Sun 8:00 pm EDT (00:00 UTC) and 10:00 pm EDT (02:00 UTC): visibility 2 miles, rain, mist
- From Mon 1:00 am EDT (05:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 500 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 10 knots, visibility 5 miles, mist, overcast at 1,500 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, overcast at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, overcast at 5,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for GRR, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 am EDT (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 3:00 pm EDT (19:00 UTC): wind from the southwest at 13 knots, gusting to 21, visibility more than 6 miles, a broken layer at 25,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, a broken layer at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 13 nm from the route, 235 nm along the route · a VIP movement · today · ZOB
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 13 nm from the route, 235 nm along the route · a VIP movement · today · ZOB
Daylight
Sunset at GRR 7:04 pm EDT (23:04 UTC), at ABE 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 UTC)). At 120 knots the arrival at ABE is before sunrise there (7:09 am EDT (11:09 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, Lehigh Valley International.
