Washington Dulles International to Watertown International IAD → ART
310 nautical miles (356 statute miles) north on a straight line, true course 012°, about 022° magnetic at the departure end (variation 10W). At 120 knots that is 1 h 38 min at the quickest height in today's winds (34,000 ft, a 69-knot tailwind), arriving about 10:31 pm EDT (02:31 UTC), after sunset at the destination. Right now IAD is IFR, wind from the north (010°) at 7 knots; ART is VFR, wind calm. 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
- SIGMET E16E: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 25 knots, until 8:55 pm EDT (00:55 UTC). Over the route from 10 to 60 nm out.
as issued
WSUS31 KKCI 112355 MKCE WST 112355 CONVECTIVE SIGMET 16E VALID UNTIL 0155Z NY NJ PA DE MD VA DC WV AND NJ NY CSTL WTRS FROM SAX-30SE JFK-10N DCA-60ENE EKN-SAX AREA EMBD TS MOV FROM 22025KT. TOPS TO FL320.
- 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 240 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the whole route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 270 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 route from 60 to 220 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 70 to 260 nm out.
- AIRMET ZULU 1C: moderate icing up to 24,000 ft. Over the last 120 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 IAD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E145 at 12,000 ft, 38 nm east, 8:43 pm EDT (00:43 UTC): moderate turbulence. 80 nm along the route, 38 nm east 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
- CRJ7 at 33,000 ft, 2 nm south, 6:31 pm EDT (22:31 UTC): moderate turbulence. 220 nm along the route, 2 nm south of the line.
as filed, and in English
ITH UA /OV ITH/TM 2231/FL330/TP CRJ7/TB MOD
- Report
- a routine report filed through ITH
- Where
- over ITH
- Time
- 22:31 UTC
- Height
- at 33,000 ft
- Aircraft
- CRJ7
- Turbulence
- moderate
- E75L at 31,000 ft, 2 nm south, 6:27 pm EDT (22:27 UTC): moderate turbulence. 220 nm along the route, 2 nm south of the line.
as filed, and in English
ITH UA /OV ITH/TM 2227/FL310/TP E75L/TB CONS MOD
- Report
- a routine report filed through ITH
- Where
- over ITH
- Time
- 22:27 UTC
- Height
- at 31,000 ft
- Aircraft
- E75L
- Turbulence
- continuous moderate
- E75 at 34,000 ft, 49 nm east, 7:15 pm EDT (23:15 UTC): moderate turbulence. 260 nm along the route, 49 nm east of the line.
as filed, and in English
RME UA /OV UCA/TM 2315/FL340/TP E75/TB CONS MOD
- Report
- a routine report filed through RME
- Where
- over UCA
- Time
- 23:15 UTC
- Height
- at 34,000 ft
- Aircraft
- E75
- Turbulence
- continuous moderate
- A21N at 35,000 ft, 49 nm east, 6:57 pm EDT (22:57 UTC): moderate turbulence. 260 nm along the route, 49 nm east of the line.
as filed, and in English
RME UA /OV UCA/TM 2257/FL350/TP A21N/TB CONS MOD
- Report
- a routine report filed through RME
- Where
- over UCA
- Time
- 22:57 UTC
- Height
- at 35,000 ft
- Aircraft
- A21N
- Turbulence
- continuous moderate
- FA8X climbing, 5 nm west, 8:34 pm EDT (00:34 UTC): overcast above 1,000 ft. At the departure end, 5 nm west of the line.
as filed, and in English
IAD UA /OV AML300005/TM 0034/FLDURC/TP FA8X/SK OVC010
- Report
- a routine report filed through IAD
- Where
- 5 nm northwest (300°) of AML
- Time
- 00:34 UTC
- Height
- during the climb
- Aircraft
- FA8X
- Sky
- overcast from 1,000 ft
- A320 descending, 20 nm east, 8:27 pm EDT (00:27 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 FINAL/TM 0027/FLDURD/TP A320/SK BASES 400 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 final
- Time
- 00:27 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- bases 40,000 ft ft
- A319 descending, 20 nm east, 8:02 pm EDT (00:02 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 DEPARTURE/TM 0002/FLDURC/TP A319/SK BASES 500 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 departure
- Time
- 00:02 UTC
- Height
- during the climb
- Aircraft
- A319
- Sky
- bases 50,000 ft ft
- C17 at 500 ft, 29 nm east, 7:42 pm EDT (23:42 UTC): overcast above 500 ft. At the departure end, 29 nm east of the line.
as filed, and in English
KADW UA /OV RWY 1L ARR/TM 2342/FL005/TP C17/SK OVC005
- Report
- a routine report filed through KADW
- Where
- runway 1L arrival
- Time
- 23:42 UTC
- Height
- at 500 ft
- Aircraft
- C17
- Sky
- overcast from 500 ft
- CL60 descending, 15 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft. At the departure end, 15 nm south of the line.
as filed, and in English
IAD UA /OV HEF160001/TM 2330/FLDURD/TP CL60/SK OVC 005
- Report
- a routine report filed through IAD
- Where
- 1 nm south (160°) of HEF
- Time
- 23:30 UTC
- Height
- during the descent
- Aircraft
- CL60
- Sky
- overcast from 500 ft
- CL60 at 500 ft, 14 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft, remarks: during the descent. At the departure end, 14 nm south of the line.
as filed, and in English
HEF UA /OV KHEF150001/TM 2330/FL005/TP CL60/SK OVC005/RM DURD
- Report
- a routine report filed through HEF
- Where
- 1 nm southeast (150°) of KHEF
- Time
- 23:30 UTC
- Height
- at 500 ft
- Aircraft
- CL60
- Sky
- overcast from 500 ft
- Remarks
- during the descent
- CRJ9 at 7,000 ft, 11 nm east, 7:17 pm EDT (23:17 UTC): overcast from 500 ft to 7,200 ft. At the departure end, 11 nm east of the line.
as filed, and in English
DCA UA /OV DCA320012/TM 2317/FL070/TP CRJ9/SK BASES 005 OVC TOPS 072
- Report
- a routine report filed through DCA
- Where
- 12 nm northwest (320°) of DCA
- Time
- 23:17 UTC
- Height
- at 7,000 ft
- Aircraft
- CRJ9
- Sky
- bases 500 ft overcast tops 7,200 ft
- B39M at 2,000 ft, 5 nm northwest, 7:03 pm EDT (23:03 UTC): overcast above 700 ft. At the departure end, 5 nm northwest of the line.
as filed, and in English
IAD UA /OV AML320005/TM 2303/FL020/TP B39M/SK BASES OVC 007
- Report
- a routine report filed through IAD
- Where
- 5 nm northwest (320°) of AML
- Time
- 23:03 UTC
- Height
- at 2,000 ft
- Aircraft
- B39M
- Sky
- bases overcast at 700 ft
- B737 at 1,000 ft, 29 nm east, 6:47 pm EDT (22:47 UTC): overcast above 500 ft. At the departure end, 29 nm east of the line.
as filed, and in English
KADW UA /OV 1L DEP/TM 2247/FL010/TP B737/SK OVC005
- Report
- a routine report filed through KADW
- Where
- 1L departure
- Time
- 22:47 UTC
- Height
- at 1,000 ft
- Aircraft
- B737
- Sky
- overcast from 500 ft
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 3 forecast points nearest it (PSB, AVP, SYR). 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 | 150° at 20 kt | −14 kt | 134 kt | 2 h 19 min | 11:12 pm EDT (03:12 UTC) | |
| 5,500 ft | 210° at 15 kt | −14 kt | 13 °C | 134 kt | 2 h 19 min | 11:12 pm EDT (03:12 UTC) |
| 7,500 ft | 220° at 14 kt | −12 kt | 9 °C | 132 kt | 2 h 21 min | 11:14 pm EDT (03:14 UTC) |
| 9,500 ft | 230° at 10 kt | −8 kt | 6 °C | 128 kt | 2 h 25 min | 11:18 pm EDT (03:18 UTC) |
| 11,500 ft | 220° at 8 kt | −7 kt | 4 °C | 127 kt | 2 h 26 min | 11:19 pm EDT (03:19 UTC) |
| 13,500 ft | 230° at 11 kt | −9 kt | -1 °C | 129 kt | 2 h 24 min | 11:17 pm EDT (03:17 UTC) |
| 15,500 ft | 230° at 15 kt | −11 kt | -5 °C | 131 kt | 2 h 22 min | 11:15 pm EDT (03:15 UTC) |
| 17,500 ft | 240° at 19 kt | −14 kt | -10 °C | 134 kt | 2 h 19 min | 11:12 pm EDT (03:12 UTC) |
| 18,000 ft FL180 | 240° at 20 kt | −14 kt | -11 °C | 134 kt | 2 h 19 min | 11:12 pm EDT (03:12 UTC) |
| 24,000 ft FL240 | 220° at 30 kt | −28 kt | -20 °C | 148 kt | 2 h 06 min | 10:59 pm EDT (02:59 UTC) |
| 30,000 ft FL300 | 220° at 70 kt | −61 kt | -34 °C | 181 kt | 1 h 43 min | 10:36 pm EDT (02:36 UTC) |
| 34,000 ft FL340 | 230° at 83 kt | −69 kt | -41 °C | 189 kt | 1 h 38 min | 10:31 pm EDT (02:31 UTC) |
| 39,000 ft FL390 | 230° at 72 kt | −54 kt | -51 °C | 174 kt | 1 h 47 min | 10:40 pm EDT (02:40 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PSB | used from 0 nm out; 98 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 150 nm out; 51 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° |
| SYR | used from 200 nm out; 33 nm from the line | 160/17 | 200/22 10° | 250/10 6° | L/V 1° | 270/11 -11° | 220/25 -20° | 220/66 -36° | 230/89 -42° | 240/74 -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 |
|---|---|---|---|---|---|---|---|
| IAD Washington, DC | departure | IFR Sky: overcast at 700 feet Weather: mist | from the north (010°) at 7 knots | 5 mi | 700 ft | 312 ft | 7:52 pm EDT (23:52 UTC) |
| FDK Frederick, MD | 30 nm out, 2 nm southwest of the line, tower | IFR Sky: a broken layer at 500 feet, overcast at 900 feet | from the north-northeast (020°) at 7 knots | 10+ mi | 500 ft | 308 ft | 00:47 UTC |
| CXY Harrisburg, PA | 80 nm out, 12 nm east of the line, tower | IFR Sky: overcast at 800 feet | from the northeast (050°) at 7 knots, gusting to 15 | 10+ mi | 800 ft | 346 ft | 23:56 UTC |
| SEG Selinsgrove, PA | 120 nm out, 6 nm southeast of the line | marginal VFR Sky: overcast at 1,400 feet Weather: mist | from the north-northwest (340°) at 7 knots | 3 mi | 1,400 ft | 463 ft | 00:38 UTC |
| IPT Williamsport, PA | 140 nm out, 4 nm west of the line, tower | marginal VFR Sky: scattered clouds at 300 feet, a broken layer at 2,000 feet, overcast at 2,600 feet Weather: mist | calm | 4 mi | 2,000 ft | 528 ft | 00:15 UTC |
| ITH Ithaca, NY | 220 nm out, 2 nm south of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 3,800 feet Weather: rain | calm | 7 mi | 700 ft | 1,099 ft | 00:31 UTC |
| SYR Syracuse, NY | 260 nm out, 8 nm southeast of the line, tower | VFR Sky: a few clouds at 700 feet, a broken layer at 6,500 feet, overcast at 11,000 feet Weather: light rain | from the east-northeast (060°) at 8 knots | 7 mi | 6,500 ft | 421 ft | 23:54 UTC |
| FZY Fulton, NY | 270 nm out, 7 nm west of the line | IFR Sky: a broken layer at 800 feet, overcast at 6,000 feet Weather: light rain | variable at 4 knots | 10+ mi | 800 ft | 475 ft | 23:54 UTC |
| ART Watertown, NY | destination | VFR Sky: overcast at 3,200 feet | calm | 10+ mi | 3,200 ft | 330 ft | 7:56 pm EDT (23:56 UTC) |
The highest airport on this list sits at 1,099 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ART when you get there the forecast at the estimated arrival, 10:31 pm EDT (02:31 UTC)
Wind calm, visibility more than 6 miles, overcast at 3,000 feet marginal VFR
30% chance between Sun 8:00 pm EDT (00:00 UTC) and 11:00 pm EDT (03:00 UTC): visibility 4 miles, light rain, overcast at 1,500 feet marginal VFR
The whole forecast for ART
- From Sun 8:00 pm EDT (00:00 UTC): wind calm, visibility more than 6 miles, overcast at 3,000 feet
- 30% chance between Sun 8:00 pm EDT (00:00 UTC) and 11:00 pm EDT (03:00 UTC): visibility 4 miles, light rain, overcast at 1,500 feet
- From Mon 12:00 am EDT (04:00 UTC): wind calm, visibility 6 miles, mist, overcast at 1,500 feet
- From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility 4 miles, mist, overcast at 300 feet
- From Mon 10:00 am EDT (14:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,500 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, overcast at 2,000 feet
The forecast for IAD, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 700 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind from the north-northwest at 6 knots, visibility 2 miles, rain showers, mist, overcast at 400 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility 4 miles, light rain showers, mist, overcast at 600 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 11 knots, gusting to 19, visibility more than 6 miles, overcast at 1,400 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, overcast at 2,100 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 7:00 pm EDT (23:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA 8 nm from the route, at the departure end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 0 nm from the route, at the departure end · a VIP movement · today · ZDC
Daylight
Sunset at IAD 6:36 pm EDT (22:36 UTC), at ART 6:25 pm EDT (22:25 UTC) (civil twilight ends 6:54 pm EDT (22:54 UTC)). At 120 knots the arrival at ART is after sunset there (6:27 pm EDT (22:27 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: Washington Dulles International, Watertown International.