George Bush Intcntl/Houston Airport to Nampa Municipal IAH → MAN
1,299 nautical miles (1,494 statute miles) northwest on a straight line, true course 315°, about 312° magnetic at the departure end (variation 3E). At 120 knots that is 10 h 29 min at the quickest height in today's winds (8,500 ft, a 4-knot tailwind), arriving about 9:02 pm MDT (03:02 UTC), after sunset at the destination. Right now IAH is VFR, wind from the south-southeast (150°) at 11 knots; MAN is VFR, wind from the northwest (320°) at 9 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
- SIGMET W30W: thunderstorms (a convective SIGMET) up to 29,000 ft, moving from the southwest at 35 knots, until 12:55 pm CDT (17:55 UTC). Over the route from 959 to 1069 nm out.
as issued
WSUS33 KKCI 121555 MKCW WST 121555 CONVECTIVE SIGMET 30W VALID UNTIL 1755Z WY UT ID FROM 30ENE MLD-50SSW OCS-20ENE MTU-40E BVL-30ENE MLD DMSHG AREA TS MOV FROM 24035KT. TOPS TO FL290.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 45,000 ft, from 10:00 am CDT (15:00 UTC). Over the route from 559 to 959 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft, from 10:00 am CDT (15:00 UTC). Over the route from 599 to 859 nm out.
- 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), from 10:00 am CDT (15:00 UTC). Over the route from 649 to 769 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 10:00 am CDT (15:00 UTC). Over the route from 769 to 1239 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 10:00 am CDT (15:00 UTC). Over the route from 829 to 1229 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft, from 10:00 am CDT (15:00 UTC). Over the route from 869 to 1039 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), from 10:00 am CDT (15:00 UTC). Over the route from 1139 to 1179 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft, from 10:00 am CDT (15:00 UTC). Over the route from 1239 to 1239 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft, from 10:00 am CDT (15:00 UTC). Over the last 0 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 IAH.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 12,000 ft, 5 nm southwest, 10:57 am CDT (15:57 UTC): moderate turbulence up to 17,000 ft, light rime icing from 12,000 ft to 16,000 ft, -1 °C. 1059 nm along the route, 5 nm southwest of the line.
as filed, and in English
SLC UA /OV OGD360005/TM 1557/FL120/TP B739/SK TOP 230 OVC 080/TA M01/TB MOD BLO 170/IC LGT RIME 160-120
- Report
- a routine report filed through SLC
- Where
- 5 nm north (360°) of OGD
- Time
- 15:57 UTC
- Height
- at 12,000 ft
- Aircraft
- B739
- Sky
- top 23,000 ft overcast at 8,000 ft
- Temperature
- −1 °C
- Turbulence
- moderate below 17,000 ft
- Icing
- light rime from 16,000 ft to 12,000 ft
- B737 at 38,000 ft, 0 nm southeast, 11:25 am CDT (16:25 UTC): no turbulence, remarks: zhu. At the departure end, 0 nm southeast of the line.
as filed, and in English
IAH UA /OV KIAH/TM 1625/FL380/TP B737/TB NEG/RM ZHU
- Report
- a routine report filed through IAH
- Where
- over KIAH
- Time
- 16:25 UTC
- Height
- at 38,000 ft
- Aircraft
- B737
- Turbulence
- none
- Remarks
- zhu
- B737 at 38,000 ft, 2 nm south, 11:22 am CDT (16:22 UTC): no turbulence, remarks: zhu. At the departure end, 2 nm south of the line.
as filed, and in English
IAH UA /OV KDAS/TM 1622/FL380/TP B737/TB NEG/RM ZHU
- Report
- a routine report filed through IAH
- Where
- over KDAS
- Time
- 16:22 UTC
- Height
- at 38,000 ft
- Aircraft
- B737
- Turbulence
- none
- Remarks
- zhu
- CRJ7 at 24,000 ft, 2 nm south, 10:54 am CDT (15:54 UTC): no turbulence, remarks: zhu. At the departure end, 2 nm south of the line.
as filed, and in English
IAH UA /OV KDAS/TM 1554/FL240/TP CRJ7/TB NEG/RM ZHU
- Report
- a routine report filed through IAH
- Where
- over KDAS
- Time
- 15:54 UTC
- Height
- at 24,000 ft
- Aircraft
- CRJ7
- Turbulence
- none
- Remarks
- zhu
- C560 at 2,300 ft, 2 nm south, 10:45 am CDT (15:45 UTC): remarks: zhu. At the departure end, 2 nm south of the line.
as filed, and in English
IAH UA /OV 0XA5/TM 1545/FL023/TP C560/SK BASE 023/RM ZHU
- Report
- a routine report filed through IAH
- Where
- over 0XA5
- Time
- 15:45 UTC
- Height
- at 2,300 ft
- Aircraft
- C560
- Sky
- base 2,300 ft
- Remarks
- zhu
- B739 at 34,000 ft, 50 nm southeast, 9:07 am CDT (14:07 UTC): no turbulence, remarks: smooth zhu. At the departure end, 50 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
- A320 at 2,000 ft, 2 nm south, 9:07 am CDT (14:07 UTC): a broken layer, remarks: bases BKN020 during the descent. At the departure end, 2 nm south of the line.
as filed, and in English
IAH UA /OV DURD/TM 1407/FL020/TP A320/SK BKN/RM BASES BKN020 DURD
- Report
- a routine report filed through IAH
- Where
- over DURD
- Time
- 14:07 UTC
- Height
- at 2,000 ft
- Aircraft
- A320
- Sky
- a broken layer
- Remarks
- bases BKN020 during the descent
- P28A at 1,200 ft, 5 nm southwest, 11:25 am CDT (16:25 UTC): light turbulence, scattered clouds above 2,500 ft. At the departure end, 5 nm southwest of the line.
as filed, and in English
DWH UA /OV 2NM N/TM 1625/FL012/TP P28A/SK SCT025/WX 10/TB LGT TURB
- Report
- a routine report filed through DWH
- Where
- 2NM north
- Time
- 16:25 UTC
- Height
- at 1,200 ft
- Aircraft
- P28A
- Sky
- scattered clouds from 2,500 ft
- Weather
- 10
- Turbulence
- light turbulence
- BE20 at 24,000 ft, 24 nm northeast, 11:23 am CDT (16:23 UTC): no turbulence, remarks: zhu. At the departure end, 24 nm northeast of the line.
as filed, and in English
UTS UA /OV KLOA/TM 1623/FL240/TP BE20/TB NEG/RM ZHU
- Report
- a routine report filed through UTS
- Where
- over KLOA
- Time
- 16:23 UTC
- Height
- at 24,000 ft
- Aircraft
- BE20
- Turbulence
- none
- Remarks
- zhu
- C172 at 7,500 ft, 27 nm northeast, 10:07 am CDT (15:07 UTC): a broken layer from 2,000 ft to 5,000 ft. 150 nm along the route, 27 nm northeast of the line.
as filed, and in English
INJ UA /OV INJ /TM 1507 /FL075 /TP C172 /SK BKN020-TOP050 /WX FV10SM
- Report
- a routine report filed through INJ
- Where
- over INJ
- Time
- 15:07 UTC
- Height
- at 7,500 ft
- Aircraft
- C172
- Sky
- a broken layer from 2,000 ft, tops 5,000 ft
- Weather
- flight visibility 10 miles
- TBM8 at 30,000 ft, 14 nm northeast, 8:43 am CDT (13:43 UTC): no turbulence, remarks: ZFW62. 160 nm along the route, 14 nm northeast of the line.
as filed, and in English
ACT UA /OV ACT340020/TM 1343/FL300/TP TBM8/TB NEG/RM ZFW62
- Report
- a routine report filed through ACT
- Where
- 20 nm north (340°) of ACT
- Time
- 13:43 UTC
- Height
- at 30,000 ft
- Aircraft
- TBM8
- Turbulence
- none
- Remarks
- ZFW62
- BE55 at 2,500 ft, 24 nm northeast, 10:56 am CDT (15:56 UTC): remarks: ZFW32. 210 nm along the route, 24 nm northeast of the line.
as filed, and in English
MWL UA /OV MQP/TM 1556/FL025/TP BE55/SK BASE 025/RM ZFW32
- Report
- a routine report filed through MWL
- Where
- over MQP
- Time
- 15:56 UTC
- Height
- at 2,500 ft
- Aircraft
- BE55
- Sky
- base 2,500 ft
- Remarks
- ZFW32
- B350 at 6,000 ft, 24 nm northeast, 9:57 am CDT (14:57 UTC): no turbulence, remarks: ZFW32. 210 nm along the route, 24 nm northeast of the line.
as filed, and in English
MWL UA /OV MQP/TM 1457/FL060/TP B350/TB NEG/RM ZFW32
- Report
- a routine report filed through MWL
- Where
- over MQP
- Time
- 14:57 UTC
- Height
- at 6,000 ft
- Aircraft
- B350
- Turbulence
- none
- Remarks
- ZFW32
- A321 at 34,000 ft, 24 nm northeast, 8:39 am CDT (13:39 UTC): no turbulence, remarks: ZFW94. 210 nm along the route, 24 nm northeast of the line.
as filed, and in English
MWL UA /OV MQP/TM 1339/FL340/TP A321/TB NEG/RM ZFW94
- Report
- a routine report filed through MWL
- Where
- over MQP
- Time
- 13:39 UTC
- Height
- at 34,000 ft
- Aircraft
- A321
- Turbulence
- none
- Remarks
- ZFW94
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 12 forecast points nearest it (CLL, DAL, ABI, SPS, LBB, AMA, TCC, ALS, GJT, SLC, PIH, BOI). 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 12 kt | −2 kt | 12 °C | 122 kt | 10 h 39 min | 9:12 pm MDT (03:12 UTC) |
| 6,500 ft | 220° at 13 kt | −1 kt | 14 °C | 121 kt | 10 h 44 min | 9:17 pm MDT (03:17 UTC) |
| 8,500 ft | 210° at 18 kt | −4 kt | 10 °C | 124 kt | 10 h 29 min | 9:02 pm MDT (03:02 UTC) |
| 10,500 ft | 210° at 22 kt | −3 kt | 5 °C | 123 kt | 10 h 34 min | 9:07 pm MDT (03:07 UTC) |
| 12,500 ft | 210° at 25 kt | −3 kt | 1 °C | 123 kt | 10 h 34 min | 9:07 pm MDT (03:07 UTC) |
| 14,500 ft | 220° at 31 kt | 0 | -3 °C | 120 kt | 10 h 50 min | 9:23 pm MDT (03:23 UTC) |
| 16,500 ft | 220° at 37 kt | +2 kt | -7 °C | 118 kt | 11 h 01 min | 9:34 pm MDT (03:34 UTC) |
| 18,000 ft FL180 | 220° at 41 kt | +4 kt | -10 °C | 116 kt | 11 h 12 min | 9:45 pm MDT (03:45 UTC) |
| 24,000 ft FL240 | 220° at 51 kt | −1 kt | -21 °C | 121 kt | 10 h 44 min | 9:17 pm MDT (03:17 UTC) |
| 30,000 ft FL300 | 230° at 59 kt | +7 kt | -29 °C | 113 kt | 11 h 30 min | 10:03 pm MDT (04:03 UTC) |
| 34,000 ft FL340 | 230° at 55 kt | +14 kt | -37 °C | 106 kt | 12 h 15 min | 10:48 pm MDT (04:48 UTC) |
| 39,000 ft FL390 | 240° at 47 kt | +15 kt | -47 °C | 105 kt | 12 h 22 min | 10:55 pm MDT (04:55 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 40 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 150 nm out; 69 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° |
| ABI | used from 200 nm out; 61 nm from the line | 210/22 19° | 210/14 15° | 210/19 8° | 240/17 -4° | 240/31 -15° | 240/35 -27° | 260/30 -37° | 260/18 -51° | |
| SPS | used from 300 nm out; 75 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° |
| LBB | used from 350 nm out; 67 nm from the line | 240/21 20° | 230/20 15° | 210/19 8° | 230/39 -6° | 230/48 -16° | 240/57 -27° | 250/51 -37° | 240/45 -50° | |
| AMA | used from 400 nm out; 27 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° | |
| TCC | used from 499 nm out; 53 nm from the line | 230/14 | 240/29 12° | 220/39 6° | 230/48 -6° | 230/52 -19° | 230/77 -27° | 240/77 -37° | 250/71 -49° | |
| ALS | used from 599 nm out; 67 nm from the line | 230/34 2° | 230/57 -9° | 230/72 -19° | 230/82 -27° | 230/91 -36° | 240/89 -48° | |||
| GJT | used from 749 nm out; 78 nm from the line | 190/30 6° | 200/35 0° | 220/50 -13° | 220/69 -22° | 220/81 -30° | 230/84 -39° | 230/88 -47° | ||
| SLC | used from 949 nm out; 70 nm from the line | 180/7 | 200/22 2° | 200/30 -4° | 210/47 -16° | 200/73 -27° | 210/81 -32° | 210/71 -37° | 210/55 -43° | |
| PIH | used from 1099 nm out; 61 nm from the line | L/V | 180/8 -1° | 190/21 -6° | 210/56 -18° | 190/64 -28° | 210/68 -31° | 210/60 -36° | 210/54 -42° | |
| BOI | used from 1199 nm out; 64 nm from the line | 360/9 1° | L/V -5° | 180/10 -12° | 200/58 -21° | 180/62 -31° | 200/41 -31° | 210/34 -32° | 200/29 -41° |
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 |
|---|---|---|---|---|---|---|---|
| IAH Houston, TX | departure | VFR Sky: scattered clouds at 2,800 feet, a broken layer at 24,000 feet | from the south-southeast (150°) at 11 knots | 10+ mi | 24,000 ft | 95 ft | 10:53 am CDT (15:53 UTC) |
| CLL College Station, TX | 60 nm out, 12 nm southwest of the line, tower | VFR | from the south-southeast (150°) at 10 knots | 10+ mi | none | 320 ft | 15:53 UTC |
| ACT Waco, TX | 140 nm out, 3 nm east of the line, tower | marginal VFR Sky: a broken layer at 1,900 feet, a broken layer at 2,400 feet | from the south-southeast (160°) at 9 knots | 10+ mi | 1,900 ft | 516 ft | 15:51 UTC |
| CDS Childress, TX | 370 nm out, 21 nm northeast of the line | VFR | from the south (190°) at 14 knots, gusting to 22 | 10+ mi | none | 1,953 ft | 15:53 UTC |
| AMA Amarillo, TX | 450 nm out, 10 nm northeast of the line, tower | VFR | from the south-southwest (210°) at 14 knots | 10+ mi | none | 3,606 ft | 15:53 UTC |
| RTN Raton, NM | 609 nm out, 10 nm southwest of the line | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 6,352 ft | 15:53 UTC |
| GUC Gunnison, CO | 769 nm out, 2 nm northeast of the line | VFR | variable at 3 knots | 10+ mi | none | 7,679 ft | 15:56 UTC |
| GJT Grand Junction, CO | 849 nm out, 16 nm southwest of the line, tower | marginal VFR Sky: a broken layer at 6,000 feet, overcast at 7,500 feet Weather: light rain | from the east (100°) at 10 knots | 5 mi | 6,000 ft | 4,861 ft | 15:53 UTC |
| EVW Evanston, WY | 1019 nm out, 20 nm northeast of the line | VFR Sky: overcast at 9,000 feet | from the south (190°) at 16 knots, gusting to 23 | 10+ mi | 9,000 ft | 7,142 ft | 15:53 UTC |
| OGD Ogden, UT | 1049 nm out, 10 nm southwest of the line, tower | marginal VFR Sky: overcast at 2,900 feet Weather: light rain | from the west-northwest (300°) at 8 knots | 10+ mi | 2,900 ft | 4,472 ft | 15:53 UTC |
| TWF Twin Falls, ID | 1189 nm out, 8 nm southwest of the line, tower | VFR Sky: overcast at 9,500 feet | from the southwest (230°) at 6 knots | 10+ mi | 9,500 ft | 4,153 ft | 15:53 UTC |
| MAN Nampa, ID | destination | VFR Sky: overcast at 9,500 feet | from the northwest (320°) at 9 knots | 10+ mi | 9,500 ft | 2,537 ft | 10:15 am MDT (16:15 UTC) |
The highest airport on this list sits at 7,679 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MAN when you get there the forecast at the estimated arrival, 9:02 pm MDT (03:02 UTC)
MAN has no terminal forecast; use the nearest airport that does.
The forecast for IAH, the departure
- From Mon 10:00 am CDT (15:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
- 30% chance between Mon 1:00 pm CDT (18:00 UTC) and 4:00 pm CDT (21:00 UTC): light rain showers
- From Mon 4:00 pm CDT (21:00 UTC): wind from the southeast at 13 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 10,000 feet
- From Mon 10:00 pm CDT (03:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 5,000 feet
- At times between Tue 5:00 am CDT (10:00 UTC) and 8:00 am CDT (13:00 UTC): overcast at 1,500 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 14 nm from the route, 140 nm along the route · security · ZFW
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at MAN 7:06 pm MDT (01:06 UTC) (civil twilight ends 7:35 pm MDT (01:35 UTC)). At 120 knots the arrival at MAN is after sunset there (7:08 pm MDT (01:08 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







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, Nampa Municipal.
