Plan a flight · Sun 7:52 pm MDT (01:52 UTC)

Dubois Municipal to Washington Dulles International DUB → IAD

1,471 nautical miles (1,693 statute miles) east on a straight line, true course 090°, about 080° magnetic at the departure end (variation 10E). At 120 knots that is 8 h 45 min at the quickest height in today's winds (39,000 ft, a 48-knot tailwind), arriving about 6:37 am EDT (10:37 UTC), after sunset at the destination. Right now DUB is IFR, wind from the southeast (130°) at 14 knots, gusting to 18; IAD is IFR, wind from the north (350°) 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: 2,346 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 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 8:55 pm MDT (02:55 UTC). Over the route from 50 to 209 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 3W
VALID UNTIL 0255Z
MT WY
FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL310.

SIGMET 3E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 8:55 pm MDT (02:55 UTC). Over the last 229 nm of the route.

as issued

WSUS31 KKCI 120055
MKCE WST 120055
CONVECTIVE SIGMET 3E
VALID UNTIL 0255Z
PA MD VA NC WV OH KY
FROM 20NE APE-30SE JST-30SSE DCA-40SW ECG-70NNW HMV-20NE APE
AREA TS MOV FROM 28015KT. TOPS TO FL310.

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 first 348 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 first 169 nm of the route.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the first 119 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 318 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 209 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 129 nm of the route.
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 616 to 775 nm out.
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 last 328 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1302 to 1442 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 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 DUB.

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, 7:04 pm MDT (01:04 UTC): moderate turbulence, remarks: low-level wind shear dept RY03 gain/loss unknown. 139 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 RY03 gain/loss unknown
S22T at 15,000 ft, 40 nm northwest, 7:47 pm MDT (01:47 UTC): moderate rime icing above 15,000 ft, -5 °C. At the departure 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
B38M at 29,000 ft, 5 nm northeast, 6:55 pm MDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 1332 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
UAL2761 at 31,000 ft, 20 nm south, 5:57 pm MDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 1362 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
A321 at 30,000 ft, 27 nm north, 5:49 pm MDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 1372 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
E170 at 22,500 ft, 5 nm southwest, 5:44 pm MDT (23:44 UTC): moderate clear-air turbulence from 18,000 ft to 22,500 ft, remarks: during the descent FRDMM7 star. At the destination end, 5 nm southwest of the line.
as filed, and in English
```
OKV UA /OV ESL100020/TM 2344/FL225/TP E170/TB CONS MOD CAT 180-225/RM DURD FRDMM7 STAR
```
Report
a routine report filed through OKV
Where
20 nm east (100°) of ESL
Time
23:44 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous moderate clear-air turbulence from 18,000 ft to 22,500 ft
Remarks
during the descent FRDMM7 star
A320 descending, 45 nm west, 6:54 pm MDT (00:54 UTC): overcast above 7,500 ft, remarks: braking action good during the descent RY19. At the departure end, 45 nm west of the line.
as filed, and in English
```
JAC UA /OV JAC/TM 0054/FLUNKN/TP A320/SK OVC075/RM BRAKING ACTION GOOD DURD RY19
```
Report
a routine report filed through JAC
Where
over JAC
Time
00:54 UTC
Height
height not given
Aircraft
A320
Sky
overcast from 7,500 ft
Remarks
braking action good during the descent RY19
CRJ7 at 17,000 ft, 49 nm southwest, 5:03 pm MDT (23:03 UTC): light rime icing, -6 °C. At the departure end, 49 nm southwest of the line.
as filed, and in English
```
JAC UA /OV JAC160030/TM 2303/FL170/TP CRJ7/TA M6/IC LGT RIME /ZLC
```
Report
a routine report filed through JAC
Where
30 nm south (160°) of JAC
Time
23:03 UTC
Height
at 17,000 ft
Aircraft
CRJ7
Temperature
−6 °C
Icing
light rime zlc
CRJ2 at 9,000 ft, 47 nm south, 6:35 pm MDT (00:35 UTC): light chop turbulence, vmc, remarks: occasional moderate turbulence at at 15,000 ft. 129 nm along the route, 47 nm south of the line.
as filed, and in English
```
CPR UA /OV CPR215015/TM 0035/FL090/TP CRJ2/WX VMC/TB LGT CHOP/RM OCNL MOD TURB AT 150
```
Report
a routine report filed through CPR
Where
15 nm southwest (215°) of CPR
Time
00:35 UTC
Height
at 9,000 ft
Aircraft
CRJ2
Weather
visual conditions
Turbulence
light chop
Remarks
occasional moderate turbulence at at 15,000 ft
B763 at 32,000 ft, 32 nm north, 7:29 pm MDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 368 nm along the route, 32 nm north of the line.
as filed, and in English
```
RAP UA /OV RAP084081/TM 0129/FL320/TP B763/TB OCNL LGT-MOD CAT/RM ZDVWC
```
Report
a routine report filed through RAP
Where
81 nm east (084°) of RAP
Time
01:29 UTC
Height
at 32,000 ft
Aircraft
B763
Turbulence
occasional light to moderate clear-air turbulence
Remarks
zdvwc
B39M at 35,000 ft, 3 nm north, 6:29 pm MDT (00:29 UTC): no turbulence, remarks: smooth. 984 nm along the route, 3 nm north of the line.
as filed, and in English
```
IKK UA /OV CGT/TM 0029/FL350/TP B39M/TB NEG/RM SMOOTH
```
Report
a routine report filed through IKK
Where
over CGT
Time
00:29 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
none
Remarks
smooth
CRJ7 at 17,000 ft, 46 nm north, 6:04 pm MDT (00:04 UTC): no turbulence. 994 nm along the route, 46 nm north of the line.
as filed, and in English
```
BEH UA /OV ELX270040/TM 0004/FL170/TP CRJ7/TB NEG
```
Report
a routine report filed through BEH
Where
40 nm west (270°) of ELX
Time
00:04 UTC
Height
at 17,000 ft
Aircraft
CRJ7
Turbulence
none
E145 at 2,600 ft, 2 nm east, 5:05 pm MDT (23:05 UTC): a routine report with nothing remarked on. 1094 nm along the route, 2 nm east of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 2305/FL026/TP E145/SK B026
```
Report
a routine report filed through FWA
Where
over FWA
Time
23:05 UTC
Height
at 2,600 ft
Aircraft
E145
Sky
B026
UAL2761 at 33,000 ft, 45 nm north, 5:24 pm MDT (23:24 UTC): no turbulence, wind 310° at 40 knots. 1104 nm along the route, 45 nm north of the line.
as filed, and in English
```
ARP UAL2761 4139N 08447W 2324 F330 310/040KT TB SMTH IC
```
Report
a routine report filed through ARP

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 13 forecast points nearest it (LND, RAP, PIR, ONL, FSD, MCW, DBQ, JOT, FWA, CMH, AGC, EKN, RIC). 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	230° at 11 kt	−7 kt		127 kt	11 h 35 min	9:27 am EDT (13:27 UTC)
5,500 ft	240° at 9 kt	−7 kt	14 °C	127 kt	11 h 35 min	9:27 am EDT (13:27 UTC)
7,500 ft	230° at 11 kt	−8 kt	12 °C	128 kt	11 h 30 min	9:22 am EDT (13:22 UTC)
9,500 ft	230° at 12 kt	−10 kt	9 °C	130 kt	11 h 19 min	9:11 am EDT (13:11 UTC)
11,500 ft	230° at 12 kt	−10 kt	6 °C	130 kt	11 h 19 min	9:11 am EDT (13:11 UTC)
13,500 ft	240° at 14 kt	−12 kt	1 °C	132 kt	11 h 09 min	9:01 am EDT (13:01 UTC)
15,500 ft	250° at 16 kt	−15 kt	-3 °C	135 kt	10 h 54 min	8:46 am EDT (12:46 UTC)
17,500 ft	250° at 19 kt	−18 kt	-8 °C	138 kt	10 h 40 min	8:32 am EDT (12:32 UTC)
18,000 ft FL180	250° at 19 kt	−18 kt	-9 °C	138 kt	10 h 40 min	8:32 am EDT (12:32 UTC)
24,000 ft FL240	260° at 24 kt	−23 kt	-20 °C	143 kt	10 h 17 min	8:09 am EDT (12:09 UTC)
30,000 ft FL300	260° at 31 kt	−30 kt	-35 °C	150 kt	9 h 48 min	7:40 am EDT (11:40 UTC)
34,000 ft FL340	260° at 39 kt	−38 kt	-41 °C	158 kt	9 h 19 min	7:11 am EDT (11:11 UTC)
39,000 ft FL390	270° at 49 kt	−48 kt	-49 °C	168 kt	8 h 45 min	6:37 am EDT (10:37 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
LND	used from 0 nm out; 47 nm from the line			180/33 10°	190/50 3°	210/59 -9°	200/50 -21°	190/41 -34°	230/55 -39°	240/65 -47°
RAP	used from 149 nm out; 119 nm from the line		120/15 12°	180/22 11°	220/26 5°	230/35 -9°	240/40 -22°	240/50 -37°	240/51 -41°	240/47 -47°
PIR	used from 348 nm out; 77 nm from the line		L/V 17°	230/13 12°	220/22 6°	250/31 -9°	250/34 -21°	240/50 -35°	230/61 -43°	240/62 -51°
ONL	used from 398 nm out; 72 nm from the line		200/20 17°	230/26 14°	240/21 7°	250/27 -9°	260/32 -19°	240/44 -34°	240/56 -41°	250/62 -51°
FSD	used from 547 nm out; 44 nm from the line	200/16	220/20 17°	240/26 13°	230/19 6°	240/25 -9°	240/28 -20°	250/39 -33°	250/44 -43°	260/63 -52°
MCW	used from 646 nm out; 59 nm from the line	200/35	240/33 18°	250/20 10°	260/10 6°	270/18 -8°	260/28 -19°	280/30 -34°	290/49 -43°	280/70 -54°
DBQ	used from 746 nm out; 68 nm from the line	220/23	240/22 16°	240/24 10°	260/18 5°	270/16 -8°	290/27 -19°	310/42 -35°	320/55 -44°	300/71 -52°
JOT	used from 895 nm out; 38 nm from the line	230/11	290/12 16°	300/19 10°	320/19 4°	300/17 -9°	330/31 -20°	320/49 -37°	320/53 -45°	320/67 -49°
FWA	used from 1044 nm out; 27 nm from the line	350/9	350/24 15°	360/25 9°	360/29 4°	350/31 -10°	340/39 -22°	330/40 -37°	320/38 -43°	320/48 -48°
CMH	used from 1143 nm out; 51 nm from the line	340/14	320/13 12°	350/12 8°	360/10 2°	350/27 -10°	340/20 -22°	320/31 -35°	270/25 -39°	260/32 -48°
AGC	used from 1292 nm out; 43 nm from the line	140/12	350/10 12°	L/V 9°	L/V 3°	200/11 -11°	220/21 -22°	220/47 -33°	230/51 -39°	230/45 -48°
EKN	used from 1342 nm out; 42 nm from the line		270/18 13°	310/5 7°	140/7 3°	210/16 -9°	220/41 -20°	210/57 -32°	220/57 -38°	230/49 -47°
RIC	used from 1442 nm out; 94 nm from the line	190/33	200/29 14°	210/31 12°	210/38 6°	230/42 -7°	230/68 -16°	220/84 -29°	220/86 -40°	220/81 -52°

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
DUB Dubois, WY	departure	IFR Sky: overcast at 500 feet	from the southeast (130°) at 14 knots, gusting to 18	10+ mi	500 ft	7,298 ft	7:35 pm MDT (01:35 UTC)
HSG Thermopolis, WY	60 nm out, 11 nm north of the line	low IFR Sky: overcast at 300 feet Weather: light rain	from the east (080°) at 5 knots	10+ mi	300 ft	4,891 ft	01:35 UTC
HSR Hot Springs, SD	278 nm out, 4 nm southwest of the line	no report just now				3,150 ft
SUO Rosebud, SD	388 nm out, 2 nm northwest of the line	low IFR Sky: overcast at 400 feet Weather: mist	from the north-northeast (030°) at 5 knots	5 mi	400 ft	2,724 ft	01:35 UTC
YKN Yankton, SD	537 nm out, 3 nm southeast of the line	VFR	from the west-northwest (300°) at 8 knots	10+ mi	none	1,305 ft	00:56 UTC
IFA Iowa Falls, IA	726 nm out, 4 nm northwest of the line	VFR	from the south-southeast (160°) at 8 knots	10+ mi	none	1,137 ft	01:35 UTC
ALO Waterloo, IA	756 nm out, 16 nm northeast of the line, tower	VFR	from the south (170°) at 10 knots	10+ mi	none	873 ft	00:54 UTC
LOT Chicago/Romeoville, IL	954 nm out, 5 nm east of the line, tower	VFR	from the southeast (140°) at 5 knots	10+ mi	none	679 ft	01:30 UTC
FWA Fort Wayne, IN	1094 nm out, 2 nm east of the line, tower	VFR Sky: a few clouds at 1,800 feet, a few clouds at 25,000 feet	calm	10+ mi	none	814 ft	00:54 UTC
HLG Wheeling, WV	1312 nm out, 19 nm north of the line, tower	marginal VFR Sky: overcast at 1,900 feet	from the northeast (050°) at 6 knots	10+ mi	1,900 ft	1,194 ft	00:53 UTC
MGW Morgantown, WV	1352 nm out, 2 nm west of the line, tower	marginal VFR Sky: a broken layer at 2,000 feet, a broken layer at 3,900 feet, overcast at 4,900 feet	calm	10+ mi	2,000 ft	1,243 ft	01:26 UTC
IAD Washington, DC	destination	IFR Sky: overcast at 600 feet Weather: light rain	from the north (350°) at 6 knots	8 mi	600 ft	312 ft	8:52 pm EDT (00:52 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 IAD when you get there the forecast at the estimated arrival, 6:37 am EDT (10:37 UTC)

Wind from the north-northwest at 11 knots, gusting to 19, visibility more than 6 miles, overcast at 1,400 feet marginal VFR

The whole forecast for IAD

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 destination end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC

Daylight

Sunset at DUB 6:40 pm MDT (00:40 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 UTC)). At 120 knots the arrival at IAD is before sunrise there (7:16 am EDT (11:16 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 northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · 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: Dubois Municipal, Washington Dulles International.