Plan a flight · Mon 10:36 am CDT (15:36 UTC)

William P Hobby Airport to Dubois Municipal HOU → DUB

1,083 nautical miles (1,246 statute miles) northwest on a straight line, true course 324°, about 321° magnetic at the departure end (variation 3E). At 120 knots that is 8 h 36 min at the quickest height in today's winds (4,500 ft, a 6-knot tailwind), arriving about 6:12 pm MDT (00:12 UTC). Right now HOU is VFR, wind from the southeast (140°) at 10 knots; DUB is low IFR, wind from the southeast (130°) at 12 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: 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

AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 626 to 934 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 666 to 914 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 238 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). Near the route, 874 nm along the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 149 nm of the route.
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 79 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 HOU.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent E75L at 6,600 ft, 27 nm southwest, 9:08 am CDT (14:08 UTC): light turbulence, remarks: low-level wind shear a 25-knot gain of airspeed during the climb 17L. 725 nm along the route, 27 nm southwest of the line.
as filed, and in English
```
COS UUA /OV COS/TM 1408/FL066/TP E75L/TB LGT/RM LLWS +25KTS DURC 17L
```
Report
an urgent report filed through COS
Where
over COS
Time
14:08 UTC
Height
at 6,600 ft
Aircraft
E75L
Turbulence
light
Remarks
low-level wind shear a 25-knot gain of airspeed during the climb 17L
urgent C172 at 6,700 ft, 5 nm northwest, 7:54 am CDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. 755 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:54 UTC
Height
at 6,700 ft
Aircraft
C172
Remarks
low-level wind shear + 10 knots during the climb
urgent FA7X at 6,800 ft, 5 nm northwest, 7:40 am CDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. 755 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1240/FL068/TP FA7X/RM LLWS -40 KTS DURC RY 35R
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:40 UTC
Height
at 6,800 ft
Aircraft
FA7X
Remarks
low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R
F2TH at 36,300 ft, 38 nm southwest, 8:15 am CDT (13:15 UTC): moderate clear-air turbulence above 36,300 ft, wind 255° at 90 knots. 685 nm along the route, 38 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB /TM 1315 /FL363 /TP F2TH /WV 25590KT /TB MOD CAT 363
```
Report
a routine report filed through PUB
Where
over PUB
Time
13:15 UTC
Height
at 36,300 ft
Aircraft
F2TH
Wind
from 255° at 90 knots
Turbulence
moderate clear-air turbulence at 36,300 ft
E55P at 8,000 ft, 31 nm southwest, 9:30 am CDT (14:30 UTC): moderate turbulence. 715 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
COS UA /OV 5S COS/TM 1430/FL080/TP E55P/TB MOD
```
Report
a routine report filed through COS
Where
5S cos
Time
14:30 UTC
Height
at 8,000 ft
Aircraft
E55P
Turbulence
moderate
C172 at 9,500 ft, 17 nm southwest, 7:43 am CDT (12:43 UTC): moderate chop turbulence. 725 nm along the route, 17 nm southwest of the line.
as filed, and in English
```
COS UA /OV BRK348/005/TM 1243/FL095/TP C172/TB TB MOD CHOP
```
Report
a routine report filed through COS
Where
BRK348/005
Time
12:43 UTC
Height
at 9,500 ft
Aircraft
C172
Turbulence
turbulence moderate chop
B38M at 12,000 ft, 30 nm northeast, 9:07 am CDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. 745 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
```
Report
a routine report filed through DEN
Where
25 nm east (090°) of DEN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
B38M
Turbulence
moderate
Remarks
from 11,000 ft to 12,000 ft
C172 at 7,500 ft, 3 nm east, 10:27 am CDT (15:27 UTC): moderate turbulence. 755 nm along the route, 3 nm east of the line.
as filed, and in English
```
APA UA /OV APA100008/TM 1527/FL075/TP C172/TB CONT MOD
```
Report
a routine report filed through APA
Where
8 nm east (100°) of APA
Time
15:27 UTC
Height
at 7,500 ft
Aircraft
C172
Turbulence
continuous moderate
B738 descending, 44 nm northeast, 10:20 am CDT (15:20 UTC): moderate turbulence from 12,000 ft to 18,000 ft. 765 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
DEN UA /OV 30NE DEN/TM 1520/FLDURD/TP B738/TB MOD 180-120
```
Report
a routine report filed through DEN
Where
30NE den
Time
15:20 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 18,000 ft to 12,000 ft
B738 descending, 26 nm southwest, 7:55 am CDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. 765 nm along the route, 26 nm southwest of the line.
as filed, and in English
```
DEN UA /OV 40SW DEN/TM 1255/FLDURD/TP B738/TB MOD 200-160
```
Report
a routine report filed through DEN
Where
40SW den
Time
12:55 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 16,000 ft
B737 at 21,000 ft, 14 nm east, 9:05 am CDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. 795 nm along the route, 14 nm east of the line.
as filed, and in English
```
DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
```
Report
a routine report filed through DEN
Where
25 nm northwest (310°) of DEN
Time
14:05 UTC
Height
at 21,000 ft
Aircraft
B737
Turbulence
moderate turbulence
Remarks
mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
B738 descending, 17 nm northeast, 8:01 am CDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. 805 nm along the route, 17 nm northeast of the line.
as filed, and in English
```
DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
```
Report
a routine report filed through DEN
Where
40NW den
Time
13:01 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 11,000 ft
E75L at 30,000 ft, 28 nm northeast, 9:34 am CDT (14:34 UTC): moderate chop turbulence, remarks: ZDVWC-34. 864 nm along the route, 28 nm northeast of the line.
as filed, and in English
```
LAR UA /OV LAR200010/TM 1434/FL300/TP E75L/TB MOD CHOP/RM -ZDVWC-34
```
Report
a routine report filed through LAR
Where
10 nm south (200°) of LAR
Time
14:34 UTC
Height
at 30,000 ft
Aircraft
E75L
Turbulence
moderate chop
Remarks
ZDVWC-34
B739 at 34,000 ft, 32 nm southeast, 9:07 am CDT (14:07 UTC): no turbulence, remarks: smooth zhu. At the departure end, 32 nm southeast of the line.
as filed, and in English
```
GLS UA /OV KVUH135158/TM 1407/FL340/TP B739/TB NEG/RM SMOOTH ZHU
```
Report
a routine report filed through GLS
Where
158 nm southeast (135°) of KVUH
Time
14:07 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
Remarks
smooth zhu

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 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 11 forecast points nearest it (HOU, CLL, DAL, SPS, GAG, AMA, GCK, PUB, DEN, RKS, 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	210° at 19 kt	−6 kt	20 °C	126 kt	8 h 36 min	6:12 pm MDT (00:12 UTC)
6,500 ft	220° at 21 kt	−5 kt	18 °C	125 kt	8 h 40 min	6:16 pm MDT (00:16 UTC)
8,500 ft	230° at 18 kt	−2 kt	12 °C	122 kt	8 h 53 min	6:29 pm MDT (00:29 UTC)
10,500 ft	230° at 20 kt	0	9 °C	120 kt	9 h 02 min	6:38 pm MDT (00:38 UTC)
12,500 ft	230° at 23 kt	+1 kt	4 °C	119 kt	9 h 06 min	6:42 pm MDT (00:42 UTC)
14,500 ft	230° at 26 kt	+1 kt	0 °C	119 kt	9 h 06 min	6:42 pm MDT (00:42 UTC)
16,500 ft	230° at 30 kt	+2 kt	-5 °C	118 kt	9 h 11 min	6:47 pm MDT (00:47 UTC)
18,000 ft FL180	230° at 32 kt	+2 kt	-8 °C	118 kt	9 h 11 min	6:47 pm MDT (00:47 UTC)
24,000 ft FL240	230° at 44 kt	+4 kt	-19 °C	116 kt	9 h 20 min	6:56 pm MDT (00:56 UTC)
30,000 ft FL300	240° at 54 kt	+11 kt	-29 °C	109 kt	9 h 56 min	7:32 pm MDT (01:32 UTC)
34,000 ft FL340	240° at 56 kt	+14 kt	-38 °C	106 kt	10 h 13 min	7:49 pm MDT (01:49 UTC)
39,000 ft FL390	240° at 49 kt	+13 kt	-48 °C	107 kt	10 h 07 min	7:43 pm MDT (01:43 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
HOU	used from 0 nm out; 25 nm from the line	160/21	180/12 17°	210/11 13°	200/7 8°	280/7 -5°	260/19 -13°	290/16 -30°	340/15 -40°	010/27 -51°
CLL	used from 50 nm out; 13 nm from the line	180/21	200/24 17°	200/15 13°	200/7 8°	260/21 -5°	230/25 -13°	260/18 -29°	310/16 -39°	360/27 -51°
DAL	used from 149 nm out; 56 nm from the line	200/15	210/22 19°	210/17 13°	230/12 8°	250/26 -5°	250/25 -14°	260/34 -28°	290/32 -38°	310/23 -50°
SPS	used from 248 nm out; 41 nm from the line	190/18	220/24 18°	210/17 15°	230/19 8°	250/27 -5°	250/41 -16°	260/48 -28°	270/42 -37°	270/28 -50°
GAG	used from 397 nm out; 67 nm from the line		230/27 21°	230/27 15°	230/26 8°	240/41 -7°	250/54 -19°	250/72 -27°	260/70 -37°	260/64 -49°
AMA	used from 447 nm out; 56 nm from the line		240/20	230/25 14°	230/31 8°	230/42 -7°	240/50 -18°	240/69 -27°	250/68 -37°	250/58 -49°
GCK	used from 546 nm out; 84 nm from the line		250/23 20°	230/35 13°	240/47 7°	240/42 -7°	250/43 -20°	240/81 -28°	250/87 -37°	250/83 -49°
PUB	used from 596 nm out; 81 nm from the line			250/31 11°	240/42 5°	230/46 -7°	230/59 -20°	240/77 -30°	230/94 -37°	240/95 -49°
DEN	used from 745 nm out; 16 nm from the line			230/7 11°	230/13 4°	230/40 -9°	230/48 -20°	240/66 -32°	240/88 -38°	230/100 -47°
RKS	used from 894 nm out; 86 nm from the line			210/15	220/17 -1°	220/32 -14°	220/69 -25°	220/70 -30°	220/70 -39°	220/56 -44°
LND	used from 944 nm out; 53 nm from the line			220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°

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
HOU Houston, TX	departure	VFR Sky: a few clouds at 2,500 feet, a few clouds at 5,500 feet, a broken layer at 23,000 feet	from the southeast (140°) at 10 knots	10+ mi	23,000 ft	46 ft	9:53 am CDT (14:53 UTC)
DWH Houston, TX	30 nm out, 3 nm east of the line, tower	VFR	from the east-southeast (120°) at 5 knots	9 mi	none	152 ft	14:53 UTC
CNW Waco, TX	149 nm out, 5 nm west of the line, tower	marginal VFR Sky: a broken layer at 2,300 feet Weather: haze	from the south-southeast (150°) at 5 knots	5 mi	2,300 ft	470 ft	14:55 UTC
SPS Wichita Falls, TX	308 nm out, 23 nm northeast of the line, tower	VFR	from the south (190°) at 15 knots, gusting to 22	10+ mi	none	1,019 ft	14:52 UTC
AXS Altus, OK	368 nm out, 16 nm northeast of the line	VFR	from the south (170°) at 17 knots	10+ mi	none	1,433 ft	15:15 UTC
GUY Guymon, OK	526 nm out, 7 nm northeast of the line	VFR	from the southwest (230°) at 15 knots, gusting to 20	10+ mi	none	3,125 ft	14:53 UTC
EHA Elkhart, KS	556 nm out, 7 nm east of the line	VFR	from the southwest (230°) at 14 knots	10+ mi	none	3,621 ft	15:15 UTC
APA Denver, CO	755 nm out, 5 nm northwest of the line, tower	VFR Sky: a few clouds at 10,000 feet	from the south (190°) at 9 knots	10+ mi	none	5,884 ft	14:53 UTC
BJC Denver, CO	785 nm out, 2 nm east of the line, tower	VFR	from the southeast (130°) at 5 knots	10+ mi	none	5,673 ft	15:00 UTC
SAA Saratoga, WY	904 nm out, 5 nm northeast of the line	VFR Sky: scattered clouds at 4,100 feet, scattered clouds at 5,000 feet	from the south-southeast (150°) at 4 knots	10+ mi	none	7,014 ft	15:10 UTC
LND Lander, WY	1023 nm out, 1 nm southeast of the line	low IFR Sky: overcast at 400 feet Weather: mist	from the northeast (040°) at 4 knots	2.5 mi	400 ft	5,588 ft	15:28 UTC
DUB Dubois, WY	destination	low IFR Sky: overcast at 200 feet Weather: fog	from the southeast (130°) at 12 knots	0.25 mi	200 ft	7,298 ft	9:15 am MDT (15:15 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, 6:12 pm MDT (00:12 UTC)

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

The forecast for HOU, the departure

From Mon 10:00 am CDT (15:00 UTC): wind from the southeast at 13 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
30% chance between Mon 12:00 pm CDT (17:00 UTC) and 3:00 pm CDT (20:00 UTC): light rain showers
From Mon 3:00 pm CDT (20:00 UTC): wind from the southeast at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 10,000 feet
From Mon 9:00 pm CDT (02:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, overcast at 5,000 feet

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Daylight

Sunset at HOU 6:54 pm CDT (23:54 UTC), at DUB 6:39 pm MDT (00:39 UTC) (civil twilight ends 7:07 pm MDT (01:07 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 southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the northern Rockies · 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: William P Hobby Airport, Dubois Municipal.