George Bush Intcntl/Houston Airport to Boise Air Trml/Gowen Field IAH → BOI
1,287 nautical miles (1,481 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 23 min at the quickest height in today's winds (4,500 ft, a 4-knot tailwind), arriving about 3:51 pm MDT (21:51 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
- SIGMET W21W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 7:55 am CDT (12:55 UTC). Over the route from 1098 to 1157 nm out.
as issued
WSUS33 KKCI 121055 MKCW WST 121055 CONVECTIVE SIGMET 21W VALID UNTIL 1255Z UT ID NV FROM 40ENE TWF-20SSE PIH-40E BVL-20WNW BVL-40ENE TWF AREA TS MOV FROM 24020KT. TOPS TO FL270.
- 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 279 to 379 nm out.
- 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 579 to 998 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). Over the route from 609 to 698 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 629 to 848 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 778 to 1217 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). Over the route from 818 to 878 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 828 to 1247 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 858 to 1038 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 route from 1137 to 1217 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
Not fetched just now.
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 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 17 kt | −4 kt | 13 °C | 124 kt | 10 h 23 min | 3:51 pm MDT (21:51 UTC) |
| 6,500 ft | 210° at 16 kt | −3 kt | 15 °C | 123 kt | 10 h 28 min | 3:56 pm MDT (21:56 UTC) |
| 8,500 ft | 210° at 17 kt | −2 kt | 10 °C | 122 kt | 10 h 33 min | 4:01 pm MDT (22:01 UTC) |
| 10,500 ft | 220° at 22 kt | +1 kt | 5 °C | 119 kt | 10 h 49 min | 4:17 pm MDT (22:17 UTC) |
| 12,500 ft | 220° at 25 kt | +2 kt | 1 °C | 118 kt | 10 h 54 min | 4:22 pm MDT (22:22 UTC) |
| 14,500 ft | 220° at 30 kt | +2 kt | -3 °C | 118 kt | 10 h 54 min | 4:22 pm MDT (22:22 UTC) |
| 16,500 ft | 220° at 35 kt | +2 kt | -7 °C | 118 kt | 10 h 54 min | 4:22 pm MDT (22:22 UTC) |
| 18,000 ft FL180 | 220° at 38 kt | +2 kt | -10 °C | 118 kt | 10 h 54 min | 4:22 pm MDT (22:22 UTC) |
| 24,000 ft FL240 | 230° at 46 kt | +9 kt | -20 °C | 111 kt | 11 h 36 min | 5:04 pm MDT (23:04 UTC) |
| 30,000 ft FL300 | 230° at 58 kt | +15 kt | -29 °C | 105 kt | 12 h 15 min | 5:43 pm MDT (23:43 UTC) |
| 34,000 ft FL340 | 240° at 54 kt | +21 kt | -36 °C | 99 kt | 13 h | 6:28 pm MDT (00:28 UTC) |
| 39,000 ft FL390 | 250° at 46 kt | +23 kt | -47 °C | 97 kt | 13 h 16 min | 6:44 pm MDT (00:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 40 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° |
| DAL | used from 150 nm out; 68 nm from the line | 190/30 | 200/28 18° | 220/18 13° | 250/13 8° | 240/24 -6° | 270/20 -14° | 270/35 -29° | 290/34 -39° | 310/41 -51° |
| ABI | used from 200 nm out; 62 nm from the line | 200/30 19° | 220/12 16° | 220/11 9° | 230/15 -5° | 250/26 -15° | 250/39 -28° | 270/36 -38° | 280/30 -51° | |
| SPS | used from 299 nm out; 73 nm from the line | 220/35 | 220/31 18° | 230/16 14° | 230/10 8° | 250/18 -5° | 250/32 -16° | 260/51 -28° | 280/46 -38° | 300/50 -50° |
| LBB | used from 349 nm out; 68 nm from the line | 220/25 21° | 230/20 15° | 220/20 7° | 230/36 -6° | 240/50 -15° | 240/59 -28° | 260/52 -37° | 260/45 -50° | |
| AMA | used from 399 nm out; 27 nm from the line | 230/32 | 230/28 14° | 230/27 7° | 230/38 -6° | 230/50 -17° | 250/69 -28° | 260/62 -37° | 270/65 -49° | |
| TCC | used from 499 nm out; 55 nm from the line | 240/20 | 230/22 13° | 230/27 6° | 230/40 -7° | 240/55 -18° | 240/74 -27° | 240/68 -37° | 250/64 -49° | |
| ALS | used from 599 nm out; 69 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| GJT | used from 748 nm out; 79 nm from the line | 220/26 6° | 230/39 0° | 220/55 -13° | 230/60 -23° | 230/78 -31° | 230/80 -35° | 230/74 -44° | ||
| SLC | used from 948 nm out; 73 nm from the line | 200/16 | 210/23 4° | 220/34 -3° | 210/40 -16° | 220/66 -23° | 220/64 -31° | 220/57 -36° | 220/50 -43° | |
| PIH | used from 1098 nm out; 56 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| BOI | used from 1197 nm out; 65 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° |
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 | no report just now | 95 ft | ||||
| CLL College Station, TX | 60 nm out, 12 nm southwest of the line, tower | no report just now | 320 ft | ||||
| ACT Waco, TX | 140 nm out, 2 nm east of the line, tower | no report just now | 516 ft | ||||
| CDS Childress, TX | 369 nm out, 19 nm northeast of the line | no report just now | 1,953 ft | ||||
| AMA Amarillo, TX | 449 nm out, 8 nm northeast of the line, tower | no report just now | 3,606 ft | ||||
| RTN Raton, NM | 609 nm out, 13 nm southwest of the line | no report just now | 6,352 ft | ||||
| GUC Gunnison, CO | 768 nm out, 2 nm west of the line | no report just now | 7,679 ft | ||||
| GJT Grand Junction, CO | 848 nm out, 20 nm southwest of the line, tower | no report just now | 4,861 ft | ||||
| EVW Evanston, WY | 1018 nm out, 15 nm northeast of the line | no report just now | 7,142 ft | ||||
| OGD Ogden, UT | 1058 nm out, 15 nm south of the line, tower | no report just now | 4,472 ft | ||||
| TWF Twin Falls, ID | 1187 nm out, 13 nm southwest of the line, tower | no report just now | 4,153 ft | ||||
| BOI Boise, ID | destination | no report just now | 2,871 ft |
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 BOI when you get there the forecast at the estimated arrival, 3:51 pm MDT (21:51 UTC)
BOI has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 15 nm from the route, 140 nm along the route · security · ZFW
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 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, Boise Air Trml/Gowen Field.