Plan a flight · Mon 10:55 am EDT (14:55 UTC)

Washington Dulles International to Adirondack Regional IAD → SLK

358 nautical miles (411 statute miles) northeast on a straight line, true course 023°, about 033° magnetic at the departure end (variation 10W). At 120 knots that is 3 h 08 min at the quickest height in today's winds (3,500 ft, a 6-knot headwind), arriving about 2:03 pm EDT (18:03 UTC). Right now IAD is marginal VFR, wind from the north-northwest (330°) at 14 knots, gusting to 24; SLK is IFR, wind from the west-southwest (250°) at 6 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

AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 30 nm along the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the last 238 nm of the route.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the last 179 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

E75L at 34,000 ft, 27 nm southeast, 10:32 am EDT (14:32 UTC): moderate clear-air turbulence above 34,000 ft. 228 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
BGM UA /OV DNY/TM 1432/FL340/TP E75L/TB OCNL MOD CAT 340
```
Report
a routine report filed through BGM
Where
over DNY
Time
14:32 UTC
Height
at 34,000 ft
Aircraft
E75L
Turbulence
occasional moderate clear-air turbulence at 34,000 ft
CL30 at 34,000 ft, 13 nm east, 9:56 am EDT (13:56 UTC): moderate turbulence. 238 nm along the route, 13 nm east of the line.
as filed, and in English
```
OIC UA /OV N66/TM 1356/FL340/TP CL30/TB MOD
```
Report
a routine report filed through OIC
Where
over N66
Time
13:56 UTC
Height
at 34,000 ft
Aircraft
CL30
Turbulence
moderate
E75L at 33,000 ft, 34 nm northwest, 9:25 am EDT (13:25 UTC): moderate turbulence. 248 nm along the route, 34 nm northwest of the line.
as filed, and in English
```
SYR UA /OV SYR140015/TM 1325/FL330/TP E75L/TB CONS MOD 350 CONS LGT 330
```
Report
a routine report filed through SYR
Where
15 nm southeast (140°) of SYR
Time
13:25 UTC
Height
at 33,000 ft
Aircraft
E75L
Turbulence
continuous moderate at 35,000 ft continuous light at 33,000 ft
B748 at 37,000 ft, 4 nm west, 10:50 am EDT (14:50 UTC): moderate turbulence above 37,000 ft. 268 nm along the route, 4 nm west of the line.
as filed, and in English
```
UCA UA /OV UCA/TM 1450/FL370/TP B748/TB CONS MOD 370
```
Report
a routine report filed through UCA
Where
over UCA
Time
14:50 UTC
Height
at 37,000 ft
Aircraft
B748
Turbulence
continuous moderate at 37,000 ft
B777 at 37,000 ft, 29 nm north, 9:16 am EDT (13:16 UTC): moderate turbulence. At the destination end, 29 nm north of the line.
as filed, and in English
```
MSS UA /OV MAL/TM 1316/FL370/TP B777/TB MOD
```
Report
a routine report filed through MSS
Where
over MAL
Time
13:16 UTC
Height
at 37,000 ft
Aircraft
B777
Turbulence
moderate
E75S at 2,400 ft, 20 nm east, 9:47 am EDT (13:47 UTC): overcast above 2,400 ft. At the departure end, 20 nm east of the line.
as filed, and in English
```
DCA UA /OV DCA19004/TM 1347/FL024/TP E75S/SK OVC024
```
Report
a routine report filed through DCA
Where
DCA19004
Time
13:47 UTC
Height
at 2,400 ft
Aircraft
E75S
Sky
overcast from 2,400 ft
B737 at 1,000 ft, 21 nm southeast, 8:40 am EDT (12:40 UTC): light chop turbulence, remarks: no bases reported on final approach runway 1. At the departure end, 21 nm southeast of the line.
as filed, and in English
```
DCA UA /OV DCA190003/TM 1240/FL010/TP B737/TB LGT CHOP/RM NO BASES REPORTED ON FINAL APPROACH RWY1
```
Report
a routine report filed through DCA
Where
3 nm south (190°) of DCA
Time
12:40 UTC
Height
at 1,000 ft
Aircraft
B737
Turbulence
light chop
Remarks
no bases reported on final approach runway 1
E145 at 4,000 ft, 4 nm southeast, 10:03 am EDT (14:03 UTC): no turbulence, remarks: above tops. At the departure end, 4 nm southeast of the line.
as filed, and in English
```
IAD UA /OV AML050010/TM 1403/FL040/TP E145/TB NEG/RM ABV TOPS
```
Report
a routine report filed through IAD
Where
10 nm northeast (050°) of AML
Time
14:03 UTC
Height
at 4,000 ft
Aircraft
E145
Turbulence
none
Remarks
above tops
B783 at 5,000 ft, 20 nm east, 8:30 am EDT (12:30 UTC): a routine report with nothing remarked on. 20 nm along the route, 20 nm east of the line.
as filed, and in English
```
BWI UA /OV BAL280010/TM 1230/FL50/TP B783/SK BASE 028 TOP 040
```
Report
a routine report filed through BWI
Where
10 nm west (280°) of BAL
Time
12:30 UTC
Height
at 5,000 ft
Aircraft
B783
Sky
base 2,800 ft top 4,000 ft
C170 at 1,500 ft, 8 nm west, 9:55 am EDT (13:55 UTC): overcast above 2,300 ft. 30 nm along the route, 8 nm west of the line.
as filed, and in English
```
FDK UA /OV FDK/TM 1355/FL015/TP C170/SK OVC023
```
Report
a routine report filed through FDK
Where
over FDK
Time
13:55 UTC
Height
at 1,500 ft
Aircraft
C170
Sky
overcast from 2,300 ft
B38M at 2,600 ft, 27 nm southeast, 9:05 am EDT (13:05 UTC): a broken layer above 2,400 ft, remarks: TOP026. 30 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BAL270003/TM 1305/FL026/TP B38M/SK BKN024/RM TOP026
```
Report
a routine report filed through BWI
Where
3 nm west (270°) of BAL
Time
13:05 UTC
Height
at 2,600 ft
Aircraft
B38M
Sky
a broken layer from 2,400 ft
Remarks
TOP026
SF50 at 3,000 ft, 8 nm west, 8:15 am EDT (12:15 UTC): a broken layer above 2,000 ft. 30 nm along the route, 8 nm west of the line.
as filed, and in English
```
FDK UA /OV FDK/TM 1215/FL030/TP SF50/SK BKN020
```
Report
a routine report filed through FDK
Where
over FDK
Time
12:15 UTC
Height
at 3,000 ft
Aircraft
SF50
Sky
a broken layer from 2,000 ft
PC12 at 2,500 ft, 5 nm northeast, 8:32 am EDT (12:32 UTC): a routine report with nothing remarked on. 60 nm along the route, 5 nm northeast of the line.
as filed, and in English
```
MDT UA /OV THV/TM 1232/FL025/TP PC12/SK BASES025
```
Report
a routine report filed through MDT
Where
over THV
Time
12:32 UTC
Height
at 2,500 ft
Aircraft
PC12
Sky
BASES025
SF50 at 2,500 ft, 5 nm northeast, 8:11 am EDT (12:11 UTC): a routine report with nothing remarked on. 60 nm along the route, 5 nm northeast of the line.
as filed, and in English
```
MDT UA /OV THV/TM 1211/FL025/TP SF50/SK BASES025
```
Report
a routine report filed through MDT
Where
over THV
Time
12:11 UTC
Height
at 2,500 ft
Aircraft
SF50
Sky
BASES025

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 4 forecast points nearest it (PSB, AVP, SYR, ALB). 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	310° at 21 kt	+6 kt		114 kt	3 h 08 min	2:03 pm EDT (18:03 UTC)
5,500 ft	320° at 24 kt	+12 kt	14 °C	108 kt	3 h 19 min	2:14 pm EDT (18:14 UTC)
7,500 ft	330° at 26 kt	+15 kt	11 °C	105 kt	3 h 25 min	2:20 pm EDT (18:20 UTC)
9,500 ft	330° at 27 kt	+17 kt	8 °C	103 kt	3 h 29 min	2:24 pm EDT (18:24 UTC)
11,500 ft	330° at 27 kt	+17 kt	4 °C	103 kt	3 h 29 min	2:24 pm EDT (18:24 UTC)
13,500 ft	330° at 27 kt	+16 kt	0 °C	104 kt	3 h 27 min	2:22 pm EDT (18:22 UTC)
15,500 ft	320° at 28 kt	+14 kt	-4 °C	106 kt	3 h 23 min	2:18 pm EDT (18:18 UTC)
17,500 ft	320° at 28 kt	+12 kt	-8 °C	108 kt	3 h 19 min	2:14 pm EDT (18:14 UTC)
18,000 ft FL180	320° at 29 kt	+11 kt	-9 °C	109 kt	3 h 17 min	2:12 pm EDT (18:12 UTC)
24,000 ft FL240	300° at 35 kt	+6 kt	-20 °C	114 kt	3 h 08 min	2:03 pm EDT (18:03 UTC)
30,000 ft FL300	310° at 41 kt	+14 kt	-36 °C	106 kt	3 h 23 min	2:18 pm EDT (18:18 UTC)
34,000 ft FL340	320° at 55 kt	+23 kt	-46 °C	97 kt	3 h 41 min	2:36 pm EDT (18:36 UTC)
39,000 ft FL390	310° at 57 kt	+20 kt	-52 °C	100 kt	3 h 35 min	2:30 pm EDT (18:30 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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; 101 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AVP	used from 99 nm out; 42 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -51°
SYR	used from 199 nm out; 53 nm from the line	290/24	310/27 13°	310/34 8°	320/32 2°	300/32 -10°	300/40 -21°	300/45 -37°	310/58 -47°	310/64 -54°
ALB	used from 298 nm out; 74 nm from the line	310/19	330/25 12°	330/29 8°	330/29 3°	320/34 -10°	310/42 -21°	320/43 -37°	330/55 -47°	320/52 -54°

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	marginal VFR Sky: a broken layer at 2,700 feet, a broken layer at 3,300 feet	from the north-northwest (330°) at 14 knots, gusting to 24	10+ mi	2,700 ft	312 ft	10:52 am EDT (14:52 UTC)
FDK Frederick, MD	30 nm out, 8 nm west of the line, tower	VFR Sky: scattered clouds at 2,500 feet	from the north-northwest (340°) at 7 knots	10+ mi	none	308 ft	14:47 UTC
MDT Harrisburg, PA	79 nm out, 2 nm northeast of the line, tower	VFR Sky: scattered clouds at 2,000 feet, a broken layer at 4,000 feet	from the northwest (320°) at 14 knots, gusting to 26	10+ mi	4,000 ft	310 ft	14:41 UTC
ZER Pottsville, PA	119 nm out, 5 nm southeast of the line	IFR Sky: a broken layer at 900 feet, a broken layer at 1,500 feet, overcast at 2,900 feet	from the northwest (310°) at 8 knots, gusting to 14	10+ mi	900 ft	1,729 ft	14:35 UTC
AVP Wilkes-Barre/Scranton, PA	159 nm out, 16 nm east of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the northwest (310°) at 4 knots	10+ mi	1,100 ft	961 ft	13:54 UTC
BGM Binghamton, NY	209 nm out, 16 nm west of the line, tower	low IFR Sky: overcast at 200 feet	from the northwest (310°) at 6 knots	9 mi	200 ft	1,635 ft	13:53 UTC
RME Rome, NY	268 nm out, 19 nm northwest of the line, tower	low IFR Sky: overcast at 400 feet	from the west (280°) at 3 knots	9 mi	400 ft	504 ft	14:08 UTC
SLK Saranac Lake, NY	destination	IFR Sky: overcast at 700 feet	from the west-southwest (250°) at 6 knots	10+ mi	700 ft	1,662 ft	10:51 am EDT (14:51 UTC)

The highest airport on this list sits at 1,729 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SLK when you get there the forecast at the estimated arrival, 2:03 pm EDT (18:03 UTC)

Wind from the west-southwest at 5 knots, visibility more than 6 miles, overcast at 900 feet IFR

The whole forecast for SLK

From Mon 8:00 am EDT (12:00 UTC): wind calm, visibility 3 miles, mist, overcast at 500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, overcast at 900 feet
From Mon 5:00 pm EDT (21:00 UTC): wind light and variable, visibility 4 miles, mist, overcast at 900 feet
30% chance between Mon 5:00 pm EDT (21:00 UTC) and 7:00 pm EDT (23:00 UTC): visibility 3 miles, light rain showers, mist
From Mon 7:00 pm EDT (23:00 UTC): wind calm, visibility 4 miles, mist, overcast at 600 feet
30% chance between Mon 7:00 pm EDT (23:00 UTC) and 8:00 pm EDT (00:00 UTC): visibility 3 miles, light rain showers, mist
From Mon 9:00 pm EDT (01:00 UTC): wind calm, visibility 3 miles, light rain showers, mist, overcast at 500 feet
From Tue 12:00 am EDT (04:00 UTC): wind calm, visibility 4 miles, mist, overcast at 600 feet

The forecast for IAD, the departure

From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 14 knots, gusting to 21, visibility more than 6 miles, a broken layer at 2,500 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, scattered clouds at 2,500 feet, a broken layer at 4,000 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 4,500 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 3 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 at 5 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 6 nm from the route, at the departure end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZDC

Daylight

Sunset at IAD 6:36 pm EDT (22:36 UTC), at SLK 6:18 pm EDT (22:18 UTC) (civil twilight ends 6:47 pm EDT (22:47 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 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: Washington Dulles International, Adirondack Regional.