Plan a flight · Mon 8:10 am CDT (13:10 UTC)

George Bush Intcntl/Houston Airport to Taylor County IAH → MDZ

938 nautical miles (1,080 statute miles) north on a straight line, true course 013°, about 010° magnetic at the departure end (variation 3E). At 120 knots that is 6 h 42 min at the quickest height in today's winds (3,500 ft, a 20-knot tailwind), arriving about 2:52 pm CDT (19:52 UTC). 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 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 369 to 789 nm out.

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 IAH.

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

E170 at 15,000 ft, 40 nm east, 6:56 am CDT (11:56 UTC): moderate chop turbulence. At the destination end, 40 nm east of the line.
as filed, and in English
```
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
```
Report
a routine report filed through Y50
Where
25 nm northwest (330°) of Y50
Time
11:56 UTC
Height
at 15,000 ft
Aircraft
E170
Turbulence
moderate chop
C525 at 22,000 ft, 35 nm west, 7:40 am CDT (12:40 UTC): light rime icing, -12 °C, remarks: during the climb from 19,000 ft to 24,000 ft zhu. At the departure end, 35 nm west of the line.
as filed, and in English
```
IAH UA /OV IAH270035/TM 1240/FL220/TP C525/TA M12/IC LGT RIME/RM DURC 190-240 ZHU
```
Report
a routine report filed through IAH
Where
35 nm west (270°) of IAH
Time
12:40 UTC
Height
at 22,000 ft
Aircraft
C525
Temperature
−12 °C
Icing
light rime
Remarks
during the climb from 19,000 ft to 24,000 ft zhu
A21N at 32,000 ft, 2 nm south, 7:04 am CDT (12:04 UTC): no turbulence, remarks: zhu. At the departure end, 2 nm south of the line.
as filed, and in English
```
IAH UA /OV KDAS134010/TM 1204/FL320/TP A21N/TB NEG/RM ZHU
```
Report
a routine report filed through IAH
Where
10 nm southeast (134°) of KDAS
Time
12:04 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
none
Remarks
zhu
B36M at 18,000 ft, 10 nm northwest, 7:24 am CDT (12:24 UTC): light clear-air turbulence, remarks: zhu. At the departure end, 10 nm northwest of the line.
as filed, and in English
```
IAH UA /OV KIAH355035/TM 1224/FL180/TP B36M/TB LGT CAT/RM ZHU
```
Report
a routine report filed through IAH
Where
35 nm north (355°) of KIAH
Time
12:24 UTC
Height
at 18,000 ft
Aircraft
B36M
Turbulence
light clear-air turbulence
Remarks
zhu
F2TH at 18,000 ft, 23 nm west, 7:20 am CDT (12:20 UTC): no turbulence from 17,300 ft to 29,000 ft, remarks: zhu. 40 nm along the route, 23 nm west of the line.
as filed, and in English
```
UTS UA /OV KLOA30035-KLOA190020/TM 1220/FL180/TP F2TH/TB NEG 290-173/RM ZHU
```
Report
a routine report filed through UTS
Where
KLOA30035-KLOA190020
Time
12:20 UTC
Height
at 18,000 ft
Aircraft
F2TH
Turbulence
no from 29,000 ft to 17,300 ft
Remarks
zhu
B738 at 18,000 ft, 23 nm west, 6:59 am CDT (11:59 UTC): light turbulence, remarks: zhu. 40 nm along the route, 23 nm west of the line.
as filed, and in English
```
UTS UA /OV KLOA155020/TM 1159/FL180/TP B738/TB LGT CHOPN 180-230/RM ZHU
```
Report
a routine report filed through UTS
Where
20 nm southeast (155°) of KLOA
Time
11:59 UTC
Height
at 18,000 ft
Aircraft
B738
Turbulence
light chopn from 18,000 ft to 23,000 ft
Remarks
zhu
A321 at 32,000 ft, 14 nm east, 7:53 am CDT (12:53 UTC): light chop turbulence, remarks: ZFW89. 120 nm along the route, 14 nm east of the line.
as filed, and in English
```
GGG UA /OV GGG155035/TM 1253/FL320/TP A321/TB CONS LGT CHOP/RM ZFW89
```
Report
a routine report filed through GGG
Where
35 nm southeast (155°) of GGG
Time
12:53 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light chop
Remarks
ZFW89
SR22 at 6,000 ft, 40 nm east, 7:50 am CDT (12:50 UTC): no turbulence, remarks: ZFW83. 260 nm along the route, 40 nm east of the line.
as filed, and in English
```
TXK UA /OV TXK040050/TM 1250/FL060/TP SR22/TB NEG/RM ZFW83
```
Report
a routine report filed through TXK
Where
50 nm northeast (040°) of TXK
Time
12:50 UTC
Height
at 6,000 ft
Aircraft
SR22
Turbulence
none
Remarks
ZFW83
A321 at 32,000 ft, 12 nm west, 7:25 am CDT (12:25 UTC): light chop turbulence. 749 nm along the route, 12 nm west of the line.
as filed, and in English
```
CID UA /OV CID360010/TM 1225/FL320/TP A321/TB INTMT LGT CHOP CONS LGT CHOP
```
Report
a routine report filed through CID
Where
10 nm north (360°) of CID
Time
12:25 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
intermittent light chop continuous light chop
B752 at 34,000 ft, 10 nm southeast, 7:23 am CDT (12:23 UTC): light chop turbulence. 789 nm along the route, 10 nm southeast of the line.
as filed, and in English
```
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
```
Report
a routine report filed through DBQ
Where
20 nm northwest (300°) of DBQ
Time
12:23 UTC
Height
at 34,000 ft
Aircraft
B752
Turbulence
occasional light chop

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 9 forecast points nearest it (HOU, CLL, SHV, FSM, SGF, COU, BRL, DBQ, LSE). 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 26 kt	−20 kt		140 kt	6 h 42 min	2:52 pm CDT (19:52 UTC)
5,500 ft	240° at 19 kt	−14 kt		134 kt	7 h	3:10 pm CDT (20:10 UTC)
7,500 ft	240° at 17 kt	−12 kt	14 °C	132 kt	7 h 06 min	3:16 pm CDT (20:16 UTC)
9,500 ft	240° at 17 kt	−12 kt	11 °C	132 kt	7 h 06 min	3:16 pm CDT (20:16 UTC)
11,500 ft	250° at 17 kt	−10 kt	7 °C	130 kt	7 h 13 min	3:23 pm CDT (20:23 UTC)
13,500 ft	250° at 17 kt	−9 kt	3 °C	129 kt	7 h 16 min	3:26 pm CDT (20:26 UTC)
15,500 ft	260° at 18 kt	−8 kt	-2 °C	128 kt	7 h 20 min	3:30 pm CDT (20:30 UTC)
17,500 ft	260° at 20 kt	−7 kt	-7 °C	127 kt	7 h 23 min	3:33 pm CDT (20:33 UTC)
18,000 ft FL180	260° at 20 kt	−7 kt	-8 °C	127 kt	7 h 23 min	3:33 pm CDT (20:33 UTC)
24,000 ft FL240	260° at 28 kt	−11 kt	-18 °C	131 kt	7 h 10 min	3:20 pm CDT (20:20 UTC)
30,000 ft FL300	280° at 43 kt	−4 kt	-32 °C	124 kt	7 h 34 min	3:44 pm CDT (20:44 UTC)
34,000 ft FL340	280° at 47 kt	−1 kt	-40 °C	121 kt	7 h 45 min	3:55 pm CDT (20:55 UTC)
39,000 ft FL390	300° at 49 kt	+10 kt	-49 °C	110 kt	8 h 32 min	4:42 pm CDT (21:42 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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; 45 nm from the line	180/22	180/20 16°	170/7 15°	L/V 8°	220/11 -6°	260/15 -13°	310/20 -30°	320/20 -40°	350/32 -51°
CLL	used from 50 nm out; 79 nm from the line	180/24	170/21 19°	180/10 14°	230/7 8°	230/16 -6°	260/20 -13°	290/23 -29°	320/21 -39°	340/35 -51°
SHV	used from 100 nm out; 55 nm from the line	210/20	210/20 18°	230/20 11°	240/16 7°	270/17 -7°	250/11 -15°	300/34 -30°	310/34 -40°	320/36 -51°
FSM	used from 250 nm out; 57 nm from the line	230/33	260/23 15°	240/23 11°	230/18 8°	230/20 -8°	250/31 -17°	280/51 -30°	280/52 -39°	300/47 -51°
SGF	used from 399 nm out; 24 nm from the line	230/37	260/20 15°	250/16 13°	250/15 8°	260/28 -7°	250/31 -17°	280/59 -31°	280/59 -39°	290/55 -50°
COU	used from 499 nm out; 34 nm from the line	250/36	260/14 16°	250/5 12°	260/12 6°	260/24 -7°	260/35 -19°	280/58 -31°	280/62 -40°	290/60 -49°
BRL	used from 599 nm out; 67 nm from the line	250/32	250/19 17°	260/15 11°	270/16 3°	290/23 -7°	260/42 -20°	270/52 -34°	280/63 -39°	290/64 -48°
DBQ	used from 749 nm out; 29 nm from the line	250/27	260/23 17°	240/26 10°	260/30 4°	280/26 -9°	280/36 -21°	270/41 -36°	280/52 -41°	290/67 -48°
LSE	used from 799 nm out; 38 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°

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	Elevation
IAH Houston, TX	departure	no report just now	95 ft
CXO Houston, TX	20 nm out, 9 nm west of the line, tower	no report just now	244 ft
GGG Longview, TX	150 nm out, 3 nm southwest of the line, tower	no report just now	365 ft
TXK Texarkana, AR	220 nm out, 18 nm east of the line, tower	no report just now	389 ft
BBG Branson, MO	409 nm out, 10 nm southeast of the line, tower	no report just now	1,302 ft
COU Columbia, MO	549 nm out, 20 nm east of the line, tower	no report just now	889 ft
MBY Moberly, MO	589 nm out, 2 nm south of the line	no report just now	866 ft
CID Cedar Rapids, IA	739 nm out, 7 nm west of the line, tower	no report just now	869 ft
PDC Prairie du Chien, WI	809 nm out, 1 nm southeast of the line	no report just now	660 ft
CMY Sparta, WI	868 nm out, 2 nm southeast of the line, tower	no report just now	839 ft
MDZ Medford, WI	destination	no report just now	1,478 ft

The highest airport on this list sits at 1,478 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MDZ when you get there the forecast at the estimated arrival, 2:52 pm CDT (19:52 UTC)

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

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

6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 18 nm from the route, 569 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC

Daylight

Sunset at IAH 6:54 pm CDT (23:54 UTC), at MDZ 6:21 pm CDT (23:21 UTC) (civil twilight ends 6:51 pm CDT (23:51 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 lower Mississippi valley · 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: George Bush Intcntl/Houston Airport, Taylor County.