Plan a flight · Mon 1:36 am EDT (05:36 UTC)

Gerald R Ford International to Manchester Boston Regional GRR → MHT

619 nautical miles (712 statute miles) east on a straight line, true course 085°, about 091° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 48 min at the quickest height in today's winds (39,000 ft, a 43-knot tailwind), arriving about 5:24 am EDT (09:24 UTC), after sunset at the destination. Right now GRR is VFR, wind from the south (170°) at 3 knots; MHT is marginal VFR, wind from the north (360°) 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: 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the whole route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 259 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 409 to 589 nm out.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the last 170 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the last 60 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

urgent B39M at 35,000 ft, 37 nm south, 11:15 pm EDT (03:15 UTC): remarks: no inj/dmg zob. 230 nm along the route, 37 nm south of the line.
as filed, and in English
```
DKK UUA /OV DKK280040/TM 0315/FL350/TP B39M/TB MTN WVE ACTN +/-5KTS/RM NO INJ/DMG ZOB
```
Report
an urgent report filed through DKK
Where
40 nm west (280°) of DKK
Time
03:15 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
mountain wve actn a 5-knot loss of airspeed
Remarks
no inj/dmg zob
UAL330 at 35,000 ft, 4 nm west, 12:30 am EDT (04:30 UTC): moderate turbulence, wind 235° at 92 knots. At the destination end, 4 nm west of the line.
as filed, and in English
```
ARP UAL330 4257N 07145W 0430 F350 235/092KT TB MOD TURB CONT MOD CHOP IC
```
Report
a routine report filed through ARP
B739 descending, 47 nm south, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 90 nm along the route, 47 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
A320 descending, 47 nm south, 11:27 pm EDT (03:27 UTC): overcast above 1,400 ft. 90 nm along the route, 47 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
```
Report
a routine report filed through DTW
Where
over DTW
Time
03:27 UTC
Height
during the descent
Aircraft
A320
Sky
at 1,400 ft overcast
CRJ7 descending, 0 nm east, 12:09 am EDT (04:09 UTC): a routine report with nothing remarked on. At the destination end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0409/FLDURD/TP CRJ7/SK 006
```
Report
a routine report filed through MHT
Where
runway 6
Time
04:09 UTC
Height
during the descent
Aircraft
CRJ7
Sky
at 600 ft
CRJ9 descending, 0 nm east, 11:16 pm EDT (03:16 UTC): a routine report with nothing remarked on. At the destination end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0316/FLDURD/TP CRJ9/SK 004
```
Report
a routine report filed through MHT
Where
runway 6
Time
03:16 UTC
Height
during the descent
Aircraft
CRJ9
Sky
at 400 ft
B738 at 300 ft, 39 nm southeast, 11:00 pm EDT (03:00 UTC): a broken layer above 500 ft, remarks: during the descent runway 4R bos. At the destination end, 39 nm southeast of the line.
as filed, and in English
```
BOS UA /OV KBOS/TM 0300/FL003/TP B738/SK BKN005/RM DURD RY 4R BOS
```
Report
a routine report filed through BOS
Where
over KBOS
Time
03:00 UTC
Height
at 300 ft
Aircraft
B738
Sky
a broken layer from 500 ft
Remarks
during the descent runway 4R bos
B38M descending, 0 nm east, 10:53 pm EDT (02:53 UTC): overcast above 1,500 ft; scattered clouds above 500 ft. At the destination end, 0 nm east of the line.
as filed, and in English
```
MHT UA /OV RWY 17/TM 0253/FLDURD/TP B38M/SK 015 OVC / 005 SCT
```
Report
a routine report filed through MHT
Where
runway 17
Time
02:53 UTC
Height
during the descent
Aircraft
B38M
Sky
at 1,500 ft overcast; at 500 ft scattered

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 6 forecast points nearest it (MKG, CLE, BUF, SYR, ALB, BOS). 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	300° at 6 kt	−5 kt		125 kt	4 h 57 min	6:33 am EDT (10:33 UTC)
5,500 ft	330° at 9 kt	−4 kt		124 kt	5 h	6:36 am EDT (10:36 UTC)
7,500 ft	340° at 9 kt	−3 kt	9 °C	123 kt	5 h 02 min	6:38 am EDT (10:38 UTC)
9,500 ft	330° at 9 kt	−4 kt	6 °C	124 kt	5 h	6:36 am EDT (10:36 UTC)
11,500 ft	320° at 10 kt	−7 kt	3 °C	127 kt	4 h 52 min	6:28 am EDT (10:28 UTC)
13,500 ft	310° at 13 kt	−10 kt	-1 °C	130 kt	4 h 46 min	6:22 am EDT (10:22 UTC)
15,500 ft	300° at 17 kt	−14 kt	-5 °C	134 kt	4 h 37 min	6:13 am EDT (10:13 UTC)
17,500 ft	300° at 21 kt	−19 kt	-9 °C	139 kt	4 h 27 min	6:03 am EDT (10:03 UTC)
18,000 ft FL180	300° at 23 kt	−20 kt	-10 °C	140 kt	4 h 25 min	6:01 am EDT (10:01 UTC)
24,000 ft FL240	290° at 27 kt	−25 kt	-22 °C	145 kt	4 h 16 min	5:52 am EDT (09:52 UTC)
30,000 ft FL300	290° at 33 kt	−29 kt	-37 °C	149 kt	4 h 09 min	5:45 am EDT (09:45 UTC)
34,000 ft FL340	280° at 41 kt	−39 kt	-43 °C	159 kt	3 h 54 min	5:30 am EDT (09:30 UTC)
39,000 ft FL390	280° at 45 kt	−43 kt	-50 °C	163 kt	3 h 48 min	5:24 am EDT (09:24 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; 58 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°
CLE	used from 100 nm out; 104 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
BUF	used from 200 nm out; 75 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
SYR	used from 349 nm out; 39 nm from the line	280/13	350/18 10°	340/10 6°	300/15 1°	280/17 -12°	270/16 -23°	280/25 -38°	250/40 -42°	240/53 -50°
ALB	used from 449 nm out; 45 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
BOS	used from 599 nm out; 45 nm from the line	110/20	200/26 12°	280/24 8°	260/29 3°	250/47 -10°	230/59 -19°	230/74 -33°	240/95 -41°	240/96 -53°

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)
LAN Lansing, MI	40 nm out, 10 nm south of the line, tower	VFR	from the south (190°) at 4 knots	8 mi	none	860 ft	04:53 UTC
FNT Flint, MI	80 nm out, 2 nm southwest of the line, tower	IFR Sky: overcast at 900 feet	from the southwest (230°) at 6 knots	10+ mi	900 ft	782 ft	05:16 UTC
CYZR Sarnia,	140 nm out, 3 nm southeast of the line	marginal VFR Sky: overcast at 1,500 feet Weather: mist	from the west-southwest (250°) at 3 knots	6 mi	1,500 ft	594 ft	05:21 UTC
CYQS St Thomas,	190 nm out, 19 nm south of the line	no report just now				776 ft
IAG Niagara Falls, NY	289 nm out, 1 nm southwest of the line, tower	low IFR Sky: a few clouds at 12,000 feet Weather: mist	calm	0.75 mi	none	592 ft	05:00 UTC
ROC Rochester, NY	349 nm out, 4 nm west of the line, tower	VFR Sky: a few clouds at 1,000 feet, overcast at 6,500 feet	from the southwest (230°) at 3 knots	10+ mi	6,500 ft	558 ft	04:54 UTC
SYR Syracuse, NY	409 nm out, 4 nm east of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 4,200 feet Weather: light rain	from the east (100°) at 5 knots	10+ mi	400 ft	421 ft	04:54 UTC
RME Rome, NY	439 nm out, 10 nm northeast of the line, tower	VFR Sky: overcast at 3,700 feet	calm	10+ mi	3,700 ft	504 ft	04:53 UTC
SCH Schenectady, NY	509 nm out, 12 nm south of the line, tower	marginal VFR Sky: a broken layer at 1,100 feet, overcast at 2,000 feet Weather: rain	from the northeast (040°) at 4 knots	7 mi	1,100 ft	377 ft	00:51 UTC
EEN Keene, NH	579 nm out, 6 nm southeast of the line	marginal VFR Sky: overcast at 1,100 feet Weather: light rain	from the north-northeast (020°) at 4 knots	8 mi	1,100 ft	488 ft	05:33 UTC
MHT Manchester, NH	destination	marginal VFR Sky: scattered clouds at 400 feet, overcast at 1,000 feet Weather: light rain, mist	from the north (360°) at 5 knots	4 mi	1,000 ft	266 ft	12:53 am EDT (04:53 UTC)

The highest airport on this list sits at 860 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MHT when you get there the forecast at the estimated arrival, 5:24 am EDT (09:24 UTC)

Wind from the north at 5 knots, visibility 4 miles, light rain, mist, scattered clouds at 400 feet, overcast at 1,000 feet marginal VFR

The whole forecast for MHT

From Mon 2:00 am EDT (06:00 UTC): wind from the north at 5 knots, visibility 4 miles, light rain, mist, scattered clouds at 400 feet, overcast at 1,000 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Tue 1:00 am EDT (05:00 UTC): wind light and variable, visibility 3 miles, mist, overcast at 1,500 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at GRR 7:04 pm EDT (23:04 UTC), at MHT 6:08 pm EDT (22:08 UTC) (civil twilight ends 6:36 pm EDT (22:36 UTC)). At 120 knots the arrival at MHT is before sunrise there (6:55 am EDT (10:55 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

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the Northeast · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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, Manchester Boston Regional.