Long Island Mac Arthur Airport to Baltimore/Washington International Thurgood Marshall ISP → BWI
191 nautical miles (220 statute miles) southwest on a straight line, true course 241°, about 255° magnetic at the departure end (variation 14W). At 120 knots that is 1 h 32 min at the quickest height in today's winds (4,500 ft, a 5-knot tailwind), arriving about 11:37 am EDT (15:37 UTC). Right now ISP is marginal VFR, wind from the north (360°) at 11 knots, gusting to 20; BWI is marginal VFR, wind from the northwest (320°) at 10 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: 2,430 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 76 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the first 76 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 ISP.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 36,000 ft, 13 nm northwest, 8:54 am EDT (12:54 UTC): moderate turbulence. 134 nm along the route, 13 nm northwest of the line.
as filed, and in English
PTW UA /OV MXE240005/TM 1254/FL360/TP B738/TB MOD
- Report
- a routine report filed through PTW
- Where
- 5 nm southwest (240°) of MXE
- Time
- 12:54 UTC
- Height
- at 36,000 ft
- Aircraft
- B738
- Turbulence
- moderate
- M700 at 4,000 ft, 22 nm north, 9:54 am EDT (13:54 UTC): no turbulence, vmc. At the departure end, 22 nm north of the line.
as filed, and in English
BDR UA /OV BDR/TM 1354/FL040/TP M700/SK VMC/TB SMOOTH
- Report
- a routine report filed through BDR
- Where
- over BDR
- Time
- 13:54 UTC
- Height
- at 4,000 ft
- Aircraft
- M700
- Sky
- visual conditions
- Turbulence
- smooth
- SR22 at 2,200 ft, 39 nm northwest, 9:17 am EDT (13:17 UTC): remarks: breaking out of clouds at at 2,200 ft rnav-z 8 approach. At the departure end, 39 nm northwest of the line.
as filed, and in English
DXR UA /OV KDXR/TM 1317/FL022/TP SR22/RM BREAKING OUT OF CLOUDS AT 022 RNAV-Z 8 APPROACH
- Report
- a routine report filed through DXR
- Where
- over KDXR
- Time
- 13:17 UTC
- Height
- at 2,200 ft
- Aircraft
- SR22
- Remarks
- breaking out of clouds at at 2,200 ft rnav-z 8 approach
- B738 descending, 0 nm southwest, 9:02 am EDT (13:02 UTC): remarks: bases 900 ft. At the departure end, 0 nm southwest of the line.
as filed, and in English
ISP UA /OV ISP/TM 1302/FLDURD/TP B738/RM BASES 009
- Report
- a routine report filed through ISP
- Where
- over ISP
- Time
- 13:02 UTC
- Height
- during the descent
- Aircraft
- B738
- Remarks
- bases 900 ft
- BCS3 at 36,000 ft, 36 nm northwest, 8:50 am EDT (12:50 UTC): light turbulence. At the departure end, 36 nm northwest of the line.
as filed, and in English
DXR UA /OV CMK/TM 1250/FL360/TP BCS3/TB INTMT LGT
- Report
- a routine report filed through DXR
- Where
- over CMK
- Time
- 12:50 UTC
- Height
- at 36,000 ft
- Aircraft
- BCS3
- Turbulence
- intermittent light
- B350 at 1,600 ft, 39 nm northwest, 8:40 am EDT (12:40 UTC): scattered clouds above 1,100 ft. At the departure end, 39 nm northwest of the line.
as filed, and in English
DXR UA /OV KDXR/TM 1240/FL016/TP B350/SK SCT011
- Report
- a routine report filed through DXR
- Where
- over KDXR
- Time
- 12:40 UTC
- Height
- at 1,600 ft
- Aircraft
- B350
- Sky
- scattered clouds from 1,100 ft
- C68A at 3,200 ft, 0 nm southwest, 8:23 am EDT (12:23 UTC): remarks: dur C. At the departure end, 0 nm southwest of the line.
as filed, and in English
ISP UA /OV 060005/TM 1223/FL032/TP C68A/SK BASES 007 / TOPS 025/RM DUR C
- Report
- a routine report filed through ISP
- Where
- wind from 060° at 5 knots
- Time
- 12:23 UTC
- Height
- at 3,200 ft
- Aircraft
- C68A
- Sky
- bases 700 ft; tops 2,500 ft
- Remarks
- dur C
- PC12 descending, 21 nm east, 7:55 am EDT (11:55 UTC): overcast above 800 ft. At the departure end, 21 nm east of the line.
as filed, and in English
FOK UA /OV FOK/TM 1155/FLDURD/TP PC12/SK OVC008
- Report
- a routine report filed through FOK
- Where
- over FOK
- Time
- 11:55 UTC
- Height
- during the descent
- Aircraft
- PC12
- Sky
- overcast from 800 ft
- PC12 at 2,500 ft, 0 nm southwest, 7:51 am EDT (11:51 UTC): remarks: dur D. At the departure end, 0 nm southwest of the line.
as filed, and in English
ISP UA /OV ISP 090 070/TM 1151/FL025/TP PC12/SK TOPS 025/RM DUR D
- Report
- a routine report filed through ISP
- Where
- isp at 9,000 ft at 7,000 ft
- Time
- 11:51 UTC
- Height
- at 2,500 ft
- Aircraft
- PC12
- Sky
- tops 2,500 ft
- Remarks
- dur D
- C172 , 39 nm northwest, 7:38 am EDT (11:38 UTC): overcast above 1,100 ft. At the departure end, 39 nm northwest of the line.
as filed, and in English
DXR UA /OV KDXR/TM 1138/FL000/TP C172/SK OVC011
- Report
- a routine report filed through DXR
- Where
- over KDXR
- Time
- 11:38 UTC
- Height
- at 0 ft
- Aircraft
- C172
- Sky
- overcast from 1,100 ft
- G280 climbing, 30 nm north, 7:17 am EDT (11:17 UTC): overcast above 500 ft. At the departure end, 30 nm north of the line.
as filed, and in English
HVN UA /OV HVN/TM 1117/FLDURC/TP G280/SK OVC005
- Report
- a routine report filed through HVN
- Where
- over HVN
- Time
- 11:17 UTC
- Height
- during the climb
- Aircraft
- G280
- Sky
- overcast from 500 ft
- SR22 at 3,000 ft, 40 nm northwest, 9:14 am EDT (13:14 UTC): remarks: instrument conditions occasional ground contact. 10 nm along the route, 40 nm northwest of the line.
as filed, and in English
DXR UA /OV KDXR260010/TM 1314/FL030/TP SR22/RM IMC OCCASIONAL GROUND CONTACT
- Report
- a routine report filed through DXR
- Where
- 10 nm west (260°) of KDXR
- Time
- 13:14 UTC
- Height
- at 3,000 ft
- Aircraft
- SR22
- Remarks
- instrument conditions occasional ground contact
- PC12 at 2,300 ft, 23 nm northwest, 7:13 am EDT (11:13 UTC): no turbulence, overcast from 700 ft to 2,300 ft. 10 nm along the route, 23 nm northwest of the line.
as filed, and in English
HPN UA /OV HPN130006/TM 1113/FL023/TP PC12/SK OVC007-TOP023/TB NEG
- Report
- a routine report filed through HPN
- Where
- 6 nm southeast (130°) of HPN
- Time
- 11:13 UTC
- Height
- at 2,300 ft
- Aircraft
- PC12
- Sky
- overcast from 700 ft, tops 2,300 ft
- Turbulence
- none
- C680 descending, 28 nm northwest, 9:00 am EDT (13:00 UTC): remarks: bases at at 1,000 ft. 19 nm along the route, 28 nm northwest of the line.
as filed, and in English
HPN UA /OV KHPN/TM 1300/FLDURD/TP C680/RM BASES AT 010
- Report
- a routine report filed through HPN
- Where
- over KHPN
- Time
- 13:00 UTC
- Height
- during the descent
- Aircraft
- C680
- Remarks
- bases at at 1,000 ft
16 more routine reports are on the map.
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 2 forecast points nearest it (JFK, ACY). 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 | 350° at 13 kt | −5 kt | 125 kt | 1 h 32 min | 11:37 am EDT (15:37 UTC) | |
| 6,500 ft | 320° at 10 kt | +2 kt | 10 °C | 118 kt | 1 h 37 min | 11:42 am EDT (15:42 UTC) |
| 8,500 ft | 320° at 11 kt | +2 kt | 7 °C | 118 kt | 1 h 37 min | 11:42 am EDT (15:42 UTC) |
| 10,500 ft | 330° at 12 kt | +1 kt | 4 °C | 119 kt | 1 h 36 min | 11:41 am EDT (15:41 UTC) |
| 12,500 ft | 330° at 13 kt | +1 kt | 2 °C | 119 kt | 1 h 36 min | 11:41 am EDT (15:41 UTC) |
| 14,500 ft | 310° at 12 kt | +4 kt | -2 °C | 116 kt | 1 h 39 min | 11:44 am EDT (15:44 UTC) |
| 16,500 ft | 290° at 12 kt | +7 kt | -7 °C | 113 kt | 1 h 41 min | 11:46 am EDT (15:46 UTC) |
| 18,000 ft FL180 | 280° at 13 kt | +10 kt | -10 °C | 110 kt | 1 h 44 min | 11:49 am EDT (15:49 UTC) |
| 24,000 ft FL240 | 240° at 22 kt | +22 kt | -22 °C | 98 kt | 1 h 57 min | 12:02 pm EDT (16:02 UTC) |
| 30,000 ft FL300 | 230° at 45 kt | +45 kt | -34 °C | 75 kt | 2 h 33 min | 12:38 pm EDT (16:38 UTC) |
| 34,000 ft FL340 | 240° at 49 kt | +49 kt | -40 °C | 71 kt | 2 h 41 min | 12:46 pm EDT (16:46 UTC) |
| 39,000 ft FL390 | 240° at 49 kt | +48 kt | -50 °C | 72 kt | 2 h 39 min | 12:44 pm EDT (16:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JFK | used from 0 nm out; 11 nm from the line | 020/25 | 290/9 12° | 300/12 7° | 320/14 3° | 290/17 -10° | 240/27 -21° | 240/44 -36° | 240/53 -41° | 240/51 -50° |
| ACY | used from 95 nm out; 41 nm from the line | 350/12 | 340/12 11° | 340/12 6° | 340/13 2° | 270/10 -10° | 240/17 -23° | 230/46 -33° | 230/46 -40° | 240/46 -49° |
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 |
|---|---|---|---|---|---|---|---|
| ISP New York, NY | departure | marginal VFR Sky: a broken layer at 1,100 feet | from the north (360°) at 11 knots, gusting to 20 | 10+ mi | 1,100 ft | 98 ft | 9:56 am EDT (13:56 UTC) |
| FRG Farmingdale, NY | 19 nm out, 6 nm northeast of the line, tower | marginal VFR Sky: a broken layer at 1,400 feet | from the north (010°) at 11 knots, gusting to 18 | 10+ mi | 1,400 ft | 81 ft | 13:53 UTC |
| PNE Philadelphia, PA | 95 nm out, 7 nm northwest of the line, tower | marginal VFR Sky: a broken layer at 1,500 feet | from the north (010°) at 6 knots | 10+ mi | 1,500 ft | 119 ft | 13:54 UTC |
| ILG Wilmington, DE | 134 nm out, 1 nm northeast of the line, tower | marginal VFR Sky: a broken layer at 1,800 feet, overcast at 2,200 feet | from the north (350°) at 12 knots | 10+ mi | 1,800 ft | 79 ft | 13:51 UTC |
| MTN Baltimore, MD | 172 nm out, 4 nm west of the line, tower | VFR Sky: scattered clouds at 1,900 feet | from the north (010°) at 7 knots | 10+ mi | none | 22 ft | 13:45 UTC |
| BWI Baltimore, MD | destination | marginal VFR Sky: a broken layer at 2,000 feet, a broken layer at 6,000 feet, a broken layer at 25,000 feet | from the northwest (320°) at 10 knots | 10+ mi | 2,000 ft | 143 ft | 9:54 am EDT (13:54 UTC) |
The highest airport on this list sits at 143 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BWI when you get there the forecast at the estimated arrival, 11:37 am EDT (15:37 UTC)
Wind from the north-northwest at 12 knots, gusting to 20, visibility more than 6 miles, overcast at 1,400 feet marginal VFR
The whole forecast for BWI
- From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, overcast at 1,300 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 12 knots, gusting to 20, visibility more than 6 miles, overcast at 1,400 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the northwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 2,000 feet, overcast at 3,500 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the west-northwest at 9 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Tue 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for ISP, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind from the north at 13 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 17 nm from the route, 38 nm along the route · security · until 20 October · ZNY
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 5 nm from the route, 181 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
- 4/9383 WASHINGTON, DC., USA 12 nm from the route, at the destination end · security · ZDC
Daylight
Sunset at ISP 6:17 pm EDT (22:17 UTC), at BWI 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 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: Long Island Mac Arthur Airport, Baltimore/Washington International Thurgood Marshall.





