Plan a flight · Sun 10:46 pm EDT (02:46 UTC)

Washington Dulles International to Dubois Municipal IAD → DUB

1,471 nautical miles (1,693 statute miles) west on a straight line, true course 291°, about 301° magnetic at the departure end (variation 10W). At 120 knots that is 13 h 45 min at the quickest height in today's winds (4,500 ft, a 13-knot headwind), arriving about 10:31 am MDT (16:31 UTC). Right now IAD is IFR, wind from the north (350°) at 8 knots; DUB is IFR, wind from the southeast (130°) at 13 knots, gusting to 22. 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: 2,346 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 7E: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the west at 15 knots, until 11:55 pm EDT (03:55 UTC). Over the first 189 nm of the route.

as issued

WSUS31 KKCI 120155
MKCE WST 120155
CONVECTIVE SIGMET 7E
VALID UNTIL 0355Z
PA MD VA DC WV OH
FROM 10NNE JST-30WNW SBY-40ENE RIC-50SW BKW-20SE APE-10NNE JST
AREA TS MOV FROM 28015KT. TOPS TO FL330.

SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1243 to 1412 nm out.

as issued

WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 8W
VALID UNTIL 0355Z
CO MT WY
FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR
AREA TS MOV FROM 22040KT. TOPS TO FL350.

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 328 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 119 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 169 nm out.
AIRMET TANGO 3W: 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 696 to 855 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 348 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 318 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 209 nm of the route.
AIRMET TANGO 1W: 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 last 169 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 129 nm of the route.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 119 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

urgent CRJ2 at 7,000 ft, 35 nm south, 9:04 pm EDT (01:04 UTC): moderate turbulence, remarks: low-level wind shear dept runway 03 gain/loss unknown. 1332 nm along the route, 35 nm south of the line.
as filed, and in English
```
CPR UUA /OV CPR035002/TM 0104/FL070/TP CRJ2/TB CONT MOD TURB/RM LLWS DEPT RY03 GAIN/LOSS UNKN
```
Report
an urgent report filed through CPR
Where
2 nm northeast (035°) of CPR
Time
01:04 UTC
Height
at 7,000 ft
Aircraft
CRJ2
Turbulence
continuous moderate turbulence
Remarks
low-level wind shear dept runway 03 gain/loss unknown
A321 at 30,000 ft, 27 nm north, 7:49 pm EDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 99 nm along the route, 27 nm north of the line.
as filed, and in English
```
2G9 UA /OV IHD/TM 2349/FL300/TP A321/TB MOD 300/RM ZOB
```
Report
a routine report filed through 2G9
Where
over IHD
Time
23:49 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
moderate at 30,000 ft
Remarks
zob
UAL2761 at 31,000 ft, 20 nm south, 7:57 pm EDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 109 nm along the route, 20 nm south of the line.
as filed, and in English
```
ARP UAL2761 3917N 07949W 2357 F310 218/058KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP
B38M at 29,000 ft, 5 nm northeast, 8:55 pm EDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 139 nm along the route, 5 nm northeast of the line.
as filed, and in English
```
MPG UA /OV AIR120030/TM 0055/FL290/TP B38M /TB OCNL MOD 290/RM ZOB
```
Report
a routine report filed through MPG
Where
30 nm southeast (120°) of AIR
Time
00:55 UTC
Height
at 29,000 ft
Aircraft
B38M
Turbulence
occasional moderate at 29,000 ft
Remarks
zob
A320 at 34,000 ft, 2 nm southeast, 10:03 pm EDT (02:03 UTC): moderate chop turbulence. 338 nm along the route, 2 nm southeast of the line.
as filed, and in English
```
FWA UA /OV FWA115040/TM 0203/FL340/TP A320/TB MOD CHOP
```
Report
a routine report filed through FWA
Where
40 nm southeast (115°) of FWA
Time
02:03 UTC
Height
at 34,000 ft
Aircraft
A320
Turbulence
moderate chop
S22T at 15,000 ft, 40 nm northwest, 9:47 pm EDT (01:47 UTC): moderate rime icing above 15,000 ft, -5 °C. At the destination end, 40 nm northwest of the line.
as filed, and in English
```
JAC UA /OV DNW010020/TM 0147/FL150/TP S22T/TA M05/IC MOD RIME 150 /ZLC
```
Report
a routine report filed through JAC
Where
20 nm north (010°) of DNW
Time
01:47 UTC
Height
at 15,000 ft
Aircraft
S22T
Temperature
−5 °C
Icing
moderate rime at 15,000 ft zlc
A320 at 2,000 ft, 39 nm east, 9:46 pm EDT (01:46 UTC): a broken layer from 30,000 ft to 4,500 ft, remarks: CONLE5 sid. At the departure end, 39 nm east of the line.
as filed, and in English
```
BWI UA /OV BAL180005/TM 0146/FL020/TP A320/SK BKN003-TOP045/RM CONLE5 SID
```
Report
a routine report filed through BWI
Where
5 nm south (180°) of BAL
Time
01:46 UTC
Height
at 2,000 ft
Aircraft
A320
Sky
a broken layer from 300 ft, tops 4,500 ft
Remarks
CONLE5 sid
B738 at 2,000 ft, 37 nm east, 9:43 pm EDT (01:43 UTC): a broken layer from 40,000 ft to 7,200 ft, remarks: TERPZ8 sid. At the departure end, 37 nm east of the line.
as filed, and in English
```
BWI UA /OV BAL260003/TM 0143/FL20/TP B738/SK BKN004-TOP072/RM TERPZ8 SID
```
Report
a routine report filed through BWI
Where
3 nm west (260°) of BAL
Time
01:43 UTC
Height
at 2,000 ft
Aircraft
B738
Sky
a broken layer from 400 ft, tops 7,200 ft
Remarks
TERPZ8 sid
B38M at 400 ft, 20 nm east, 9:15 pm EDT (01:15 UTC): overcast above 40,000 ft. At the departure end, 20 nm east of the line.
as filed, and in English
```
DCA UA /OV DCA/TM 0115/FL004/TP B38M/SK OVC004
```
Report
a routine report filed through DCA
Where
over DCA
Time
01:15 UTC
Height
at 400 ft
Aircraft
B38M
Sky
overcast from 400 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
A21N at 600 ft, 39 nm east, 8:23 pm EDT (00:23 UTC): a broken layer above 600 ft. At the departure end, 39 nm east of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0023/FL006/TP A21N/SK BKN006
```
Report
a routine report filed through BWI
Where
over BWI
Time
00:23 UTC
Height
at 600 ft
Aircraft
A21N
Sky
a broken layer from 600 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
B763 at 500 ft, 39 nm east, 7:50 pm EDT (23:50 UTC): a broken layer above 500 ft. At the departure end, 39 nm east of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 2350/FL005/TP B763/SK BKN005
```
Report
a routine report filed through BWI
Where
over BWI
Time
23:50 UTC
Height
at 500 ft
Aircraft
B763
Sky
a broken layer from 500 ft
FA8X climbing, 5 nm southeast, 8:34 pm EDT (00:34 UTC): overcast above 1,000 ft. At the departure end, 5 nm southeast 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

16 more routine reports are on the map.

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 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 12 forecast points nearest it (EKN, AGC, CMH, FWA, JOT, DBQ, MCW, FSD, ONL, PIR, RAP, LND). 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	240° at 15 kt	+13 kt	15 °C	107 kt	13 h 45 min	10:31 am MDT (16:31 UTC)
6,500 ft	260° at 15 kt	+14 kt	14 °C	106 kt	13 h 53 min	10:39 am MDT (16:39 UTC)
8,500 ft	250° at 14 kt	+13 kt	11 °C	107 kt	13 h 45 min	10:31 am MDT (16:31 UTC)
10,500 ft	250° at 14 kt	+13 kt	7 °C	107 kt	13 h 45 min	10:31 am MDT (16:31 UTC)
12,500 ft	250° at 14 kt	+14 kt	3 °C	106 kt	13 h 53 min	10:39 am MDT (16:39 UTC)
14,500 ft	250° at 16 kt	+16 kt	-1 °C	104 kt	14 h 09 min	10:55 am MDT (16:55 UTC)
16,500 ft	260° at 17 kt	+18 kt	-6 °C	102 kt	14 h 25 min	11:11 am MDT (17:11 UTC)
18,000 ft FL180	260° at 18 kt	+20 kt	-9 °C	100 kt	14 h 43 min	11:29 am MDT (17:29 UTC)
24,000 ft FL240	270° at 25 kt	+27 kt	-21 °C	93 kt	15 h 49 min	12:35 pm MDT (18:35 UTC)
30,000 ft FL300	270° at 29 kt	+32 kt	-34 °C	88 kt	16 h 43 min	1:29 pm MDT (19:29 UTC)
34,000 ft FL340	270° at 43 kt	+45 kt	-41 °C	75 kt	19 h 37 min	4:23 pm MDT (22:23 UTC)
39,000 ft FL390	280° at 47 kt	+50 kt	-48 °C	70 kt	21 h 01 min	5:47 pm MDT (23:47 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
EKN	used from 0 nm out; 89 nm from the line		330/21 12°	330/25 7°	350/22 2°	330/24 -10°	310/27 -21°	320/33 -35°	290/31 -39°	290/34 -47°
AGC	used from 99 nm out; 41 nm from the line	350/14	330/20 11°	340/18 8°	330/17 3°	340/22 -11°	340/31 -22°	330/33 -36°	300/34 -41°	300/35 -47°
CMH	used from 199 nm out; 43 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°
FWA	used from 298 nm out; 53 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°
JOT	used from 447 nm out; 42 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
DBQ	used from 596 nm out; 27 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
MCW	used from 696 nm out; 57 nm from the line	220/44	250/30 17°	230/14 12°	240/17 6°	250/22 -8°	270/29 -20°	250/34 -34°	260/52 -43°	260/59 -51°
FSD	used from 845 nm out; 59 nm from the line	190/9	230/30 18°	240/23 13°	240/20 6°	260/22 -9°	250/31 -21°	250/43 -36°	260/49 -43°	270/53 -47°
ONL	used from 944 nm out; 39 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
PIR	used from 1044 nm out; 71 nm from the line		170/22 19°	190/25 13°	210/32 6°	240/23 -9°	250/32 -21°	250/38 -36°	260/44 -40°	260/52 -47°
RAP	used from 1094 nm out; 78 nm from the line		180/23 12°	200/38 13°	210/38 6°	220/28 -10°	230/34 -21°	230/37 -36°	250/52 -38°	250/59 -46°
LND	used from 1292 nm out; 120 nm from the line			200/23 6°	220/31 1°	220/39 -11°	230/39 -23°	220/51 -28°	220/66 -37°	230/68 -45°

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 500 feet	from the north (350°) at 8 knots	10+ mi	500 ft	312 ft	9:52 pm EDT (01:52 UTC)
MGW Morgantown, WV	119 nm out, 2 nm west of the line, tower	VFR Sky: a few clouds at 1,700 feet, a broken layer at 4,100 feet, overcast at 7,500 feet Weather: light rain	calm	10+ mi	4,100 ft	1,243 ft	02:34 UTC
HLG Wheeling, WV	159 nm out, 19 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,000 feet, overcast at 1,700 feet	from the north-northwest (340°) at 6 knots	10+ mi	1,000 ft	1,194 ft	02:09 UTC
FWA Fort Wayne, IN	378 nm out, 2 nm east of the line, tower	VFR Sky: a few clouds at 400 feet, a few clouds at 25,000 feet	from the south-southwest (200°) at 4 knots	9 mi	none	814 ft	02:43 UTC
LOT Chicago/Romeoville, IL	517 nm out, 5 nm east of the line, tower	VFR	from the south-southeast (150°) at 6 knots	10+ mi	none	679 ft	02:35 UTC
ALO Waterloo, IA	716 nm out, 16 nm northeast of the line, tower	VFR	from the south (180°) at 11 knots	10+ mi	none	873 ft	01:54 UTC
IFA Iowa Falls, IA	746 nm out, 4 nm northwest of the line	VFR	from the south-southeast (160°) at 7 knots	10+ mi	none	1,137 ft	02:35 UTC
YKN Yankton, SD	935 nm out, 3 nm southeast of the line	VFR	from the northwest (310°) at 10 knots	10+ mi	none	1,305 ft	01:56 UTC
SUO Rosebud, SD	1084 nm out, 2 nm northwest of the line	low IFR Sky: overcast at 300 feet Weather: mist	from the north-northeast (020°) at 6 knots	3 mi	300 ft	2,724 ft	02:35 UTC
HSR Hot Springs, SD	1193 nm out, 4 nm southwest of the line	no report just now				3,150 ft
HSG Thermopolis, WY	1412 nm out, 11 nm north of the line	IFR Sky: overcast at 800 feet Weather: mist	from the north (010°) at 8 knots	3 mi	800 ft	4,891 ft	02:35 UTC
DUB Dubois, WY	destination	IFR Sky: overcast at 500 feet Weather: light rain	from the southeast (130°) at 13 knots, gusting to 22	5 mi	500 ft	7,298 ft	8:35 pm MDT (02:35 UTC)

The highest airport on this list sits at 7,298 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At DUB when you get there the forecast at the estimated arrival, 10:31 am MDT (16:31 UTC)

DUB has no terminal forecast; use the nearest airport that does.

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 4 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 DUB 6:40 pm MDT (00:40 UTC) (civil twilight ends 7:09 pm MDT (01:09 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 now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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, Dubois Municipal.