Plan a flight · Mon 1:52 am EDT (05:52 UTC)

Gerald R Ford International to Luis Munoz Marin International GRR → SJU

1,771 nautical miles (2,038 statute miles) southeast on a straight line, true course 140°, about 146° magnetic at the departure end (variation 6W). At 120 knots that is 13 h 31 min at the quickest height in today's winds (24,000 ft, a 11-knot tailwind), arriving about 3:23 pm AST (19:23 UTC). Right now GRR is VFR, wind from the south (170°) at 3 knots; SJU is VFR, wind from the east-southeast (110°) at 4 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: 2 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

SIGMET E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Near the route, 428 nm along the route.

as issued

WSUS31 KKCI 120455
MKCE WST 120455
CONVECTIVE SIGMET 19E
VALID UNTIL 0655Z
CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS
FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.

SIGMET E17E: thunderstorms (a convective SIGMET) up to 44,000 ft, moving from the southwest at 25 knots, until 2:55 am EDT (06:55 UTC). Near the route, 766 nm along the route.

as issued

WSUS31 KKCI 120455
MKCE WST 120455
CONVECTIVE SIGMET 17E
VALID UNTIL 0655Z
NC VA CSTL WTRS
FROM 160SE SIE-190SE ECG-140SE ILM-70E ORF-160SE SIE
AREA TS MOV FROM 24025KT. TOPS TO FL440.
REF INTL SIGMET LIMA SERIES.

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 428 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 288 to 438 nm out.
AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 368 to 507 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 527 to 547 nm out.
AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 716 to 746 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

A333 descending, 49 nm northeast, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 90 nm along the route, 49 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 49 nm northeast, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 90 nm along the route, 49 nm northeast 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, 49 nm northeast, 11:27 pm EDT (03:27 UTC): overcast above 1,400 ft. 90 nm along the route, 49 nm northeast 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
B738 at 1,800 ft, 9 nm northeast, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 109 nm along the route, 9 nm northeast 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, 9 nm northeast, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 109 nm along the route, 9 nm northeast 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
MD83 climbing, 26 nm southwest, 1:04 am EDT (05:04 UTC): a routine report with nothing remarked on. 219 nm along the route, 26 nm southwest of the line.
as filed, and in English
```
CMH UA /OV LCK/TM 0504/FLDURC/TP MD83/SK B010 T037
```
Report
a routine report filed through CMH
Where
over LCK
Time
05:04 UTC
Height
during the climb
Aircraft
MD83
Sky
B010 T037

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 9 forecast points nearest it (MKG, FWA, CMH, CRW, ROA, RDU, ILM, MLB, MIA). 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	280° at 11 kt	−8 kt		128 kt	13 h 50 min	3:42 pm AST (19:42 UTC)
5,500 ft	290° at 11 kt	−9 kt		129 kt	13 h 44 min	3:36 pm AST (19:36 UTC)
7,500 ft	290° at 12 kt	−9 kt	13 °C	129 kt	13 h 44 min	3:36 pm AST (19:36 UTC)
9,500 ft	280° at 13 kt	−9 kt	10 °C	129 kt	13 h 44 min	3:36 pm AST (19:36 UTC)
11,500 ft	270° at 14 kt	−8 kt	7 °C	128 kt	13 h 50 min	3:42 pm AST (19:42 UTC)
13,500 ft	270° at 16 kt	−8 kt	3 °C	128 kt	13 h 50 min	3:42 pm AST (19:42 UTC)
15,500 ft	260° at 19 kt	−9 kt	-1 °C	129 kt	13 h 44 min	3:36 pm AST (19:36 UTC)
17,500 ft	260° at 21 kt	−9 kt	-5 °C	129 kt	13 h 44 min	3:36 pm AST (19:36 UTC)
18,000 ft FL180	260° at 22 kt	−10 kt	-6 °C	130 kt	13 h 37 min	3:29 pm AST (19:29 UTC)
24,000 ft FL240	260° at 26 kt	−11 kt	-18 °C	131 kt	13 h 31 min	3:23 pm AST (19:23 UTC)
30,000 ft FL300	250° at 26 kt	−4 kt	-32 °C	124 kt	14 h 17 min	4:09 pm AST (20:09 UTC)
34,000 ft FL340	230° at 29 kt	+3 kt	-41 °C	117 kt	15 h 08 min	5:00 pm AST (21:00 UTC)
39,000 ft FL390	240° at 31 kt	0	-50 °C	120 kt	14 h 46 min	4:38 pm AST (20:38 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; 60 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; 66 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; 39 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°
CRW	used from 249 nm out; 58 nm from the line	330/20	330/23 11°	340/25 8°	340/21 2°	340/33 -9°	340/41 -20°	330/42 -35°	320/44 -39°	320/43 -47°
ROA	used from 348 nm out; 47 nm from the line	310/29	330/31 13°	340/28 7°	330/25 3°	310/32 -8°	300/32 -22°	290/32 -31°	270/35 -38°	270/32 -47°
RDU	used from 448 nm out; 52 nm from the line	280/33	300/23 11°	300/28 8°	290/28 4°	260/41 -6°	240/52 -18°	230/66 -31°	230/76 -39°	240/52 -49°
ILM	used from 597 nm out; 33 nm from the line	270/22	270/23 11°	260/35 10°	240/41 6°	240/49 -5°	240/61 -16°	230/74 -30°	220/79 -40°	230/71 -51°
MLB	used from 1045 nm out; 427 nm from the line	230/6	230/12 17°	240/13 12°	240/14 7°	240/20 -5°	240/24 -16°	210/21 -32°	190/33 -41°	200/36 -52°
MIA	used from 1144 nm out; 474 nm from the line	150/7	140/5 17°	160/5 14°	L/V 9°	230/8 -5°	230/8 -17°	150/11 -32°	150/25 -41°	180/29 -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)
TOL Toledo, OH	109 nm out, 9 nm northeast of the line, tower	marginal VFR Sky: overcast at 1,500 feet	from the west-southwest (240°) at 3 knots	7 mi	1,500 ft	683 ft	05:09 UTC
PKB Parkersburg, WV	279 nm out, 12 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 700 feet, overcast at 1,300 feet	from the west-northwest (290°) at 6 knots	8 mi	1,300 ft	858 ft	05:42 UTC
LWB Lewisburg, WV	378 nm out, 5 nm south of the line, tower	marginal VFR Sky: a few clouds at 900 feet, a broken layer at 2,100 feet, overcast at 2,500 feet Weather: light rain, mist	from the west-southwest (240°) at 7 knots	4 mi	2,100 ft	2,301 ft	02:15 UTC
OAJ Jacksonville, NC	607 nm out, 2 nm south of the line, tower	VFR Sky: overcast at 4,100 feet	from the west-southwest (240°) at 8 knots	10+ mi	4,100 ft	92 ft	01:56 UTC
SJU San Juan, PR	destination	VFR Sky: a few clouds at 2,800 feet	from the east-southeast (110°) at 4 knots	10+ mi	none	9 ft	12:56 am AST (04:56 UTC)

The highest airport on this list sits at 2,301 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SJU when you get there the forecast at the estimated arrival, 3:23 pm AST (19:23 UTC)

Wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet VFR

The whole forecast for SJU

From Mon 2:00 am AST (06:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet
From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
From Mon 7:00 pm AST (23:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 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

6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU

Daylight

Sunset at GRR 7:04 pm EDT (23:04 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 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 now, the Southeast · 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, Luis Munoz Marin International.