Plan a flight · Mon 3:43 am CDT (08:43 UTC)

Austin-Bergstrom International to Boise Air Trml/Gowen Field AUS → BOI

1,194 nautical miles (1,374 statute miles) northwest on a straight line, true course 317°, about 313° magnetic at the departure end (variation 4E). At 120 knots that is 9 h 38 min at the quickest height in today's winds (4,500 ft, a 4-knot tailwind), arriving about 12:21 pm MDT (18:21 UTC). Right now AUS is VFR, wind from the south (170°) at 3 knots; BOI is VFR, wind from the west-northwest (300°) at 8 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: 5 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 from 18,000 ft to 42,000 ft. Over the route from 478 to 916 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 478 to 995 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). Near the route, 637 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 707 to 1144 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 746 to 1134 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 80 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 AUS.

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

A333 at 38,000 ft, 29 nm northeast, 3:23 am CDT (08:23 UTC): light chop turbulence, remarks: mtw +/-15KT zdvwc. 567 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
ALS UA /OV ALS085025/TM 0823/FL380/TP A333/TB LGT CHOP/RM MTW +/-15KT. ZDVWC
```
Report
a routine report filed through ALS
Where
25 nm east (085°) of ALS
Time
08:23 UTC
Height
at 38,000 ft
Aircraft
A333
Turbulence
light chop
Remarks
mtw +/-15KT zdvwc
GLF6 at 47,000 ft, 35 nm northeast, 2:47 am CDT (07:47 UTC): remarks: moderate mtw +/-1500FPM zdvwc. 637 nm along the route, 35 nm northeast of the line.
as filed, and in English
```
GUC UA /OV HBU105046/TM 0747/FL470/TP GLF6/RM MOD MTW +/-1500FPM. ZDVWC
```
Report
a routine report filed through GUC
Where
46 nm east (105°) of HBU
Time
07:47 UTC
Height
at 47,000 ft
Aircraft
GLF6
Remarks
moderate mtw +/-1500FPM zdvwc
PC12 at 26,000 ft, 44 nm northeast, 1:27 am CDT (06:27 UTC): light chop turbulence, remarks: ZDVWC-12. 647 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
GUC UA /OV HBU090040/TM 0627/FL260/TP PC12/TB OCNL LGT CHOP/RM ZDVWC-12
```
Report
a routine report filed through GUC
Where
40 nm east (090°) of HBU
Time
06:27 UTC
Height
at 26,000 ft
Aircraft
PC12
Turbulence
occasional light chop
Remarks
ZDVWC-12
E170 at 4,800 ft, 8 nm northeast, 1:31 am CDT (06:31 UTC): no turbulence, no icing, clear from 4,800 ft to 60,000 ft, remarks: during the descent rnav Y 11 lgjt zdvwc. 756 nm along the route, 8 nm northeast of the line.
as filed, and in English
```
GJT UA /OV GJT/TM 0631/FL048/TP E170/SK SKC/TB NEG/IC NEG/RM DURD RNAV Y 11 LGJT. ZDVWC
```
Report
a routine report filed through GJT
Where
over GJT
Time
06:31 UTC
Height
at 4,800 ft
Aircraft
E170
Sky
clear
Turbulence
none
Icing
none
Remarks
during the descent rnav Y 11 lgjt zdvwc
PC12 at 12,000 ft, 19 nm southwest, 2:08 am CDT (07:08 UTC): light turbulence, no icing, 4 °C, remarks: instrument conditions ZDVWC-11. 776 nm along the route, 19 nm southwest of the line.
as filed, and in English
```
GJT UA /OV JNC237019/TM 0708/FL120/TP PC12/TA 04/TB OCNL LGT/IC NEG/RM IMC. ZDVWC-11
```
Report
a routine report filed through GJT
Where
19 nm southwest (237°) of JNC
Time
07:08 UTC
Height
at 12,000 ft
Aircraft
PC12
Temperature
4 °C
Turbulence
occasional light
Icing
none
Remarks
instrument conditions ZDVWC-11

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 9 forecast points nearest it (SAT, ABI, LBB, 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 15 kt	−4 kt	15 °C	124 kt	9 h 38 min	12:21 pm MDT (18:21 UTC)
6,500 ft	210° at 16 kt	−3 kt	14 °C	123 kt	9 h 42 min	12:25 pm MDT (18:25 UTC)
8,500 ft	220° at 17 kt	−2 kt	10 °C	122 kt	9 h 47 min	12:30 pm MDT (18:30 UTC)
10,500 ft	220° at 22 kt	0	5 °C	120 kt	9 h 57 min	12:40 pm MDT (18:40 UTC)
12,500 ft	220° at 26 kt	+1 kt	1 °C	119 kt	10 h 02 min	12:45 pm MDT (18:45 UTC)
14,500 ft	220° at 31 kt	0	-3 °C	120 kt	9 h 57 min	12:40 pm MDT (18:40 UTC)
16,500 ft	220° at 36 kt	−1 kt	-8 °C	121 kt	9 h 52 min	12:35 pm MDT (18:35 UTC)
18,000 ft FL180	220° at 40 kt	−1 kt	-11 °C	121 kt	9 h 52 min	12:35 pm MDT (18:35 UTC)
24,000 ft FL240	230° at 49 kt	+6 kt	-20 °C	114 kt	10 h 28 min	1:11 pm MDT (19:11 UTC)
30,000 ft FL300	230° at 62 kt	+8 kt	-29 °C	112 kt	10 h 40 min	1:23 pm MDT (19:23 UTC)
34,000 ft FL340	240° at 58 kt	+15 kt	-36 °C	105 kt	11 h 22 min	2:05 pm MDT (20:05 UTC)
39,000 ft FL390	240° at 49 kt	+15 kt	-46 °C	105 kt	11 h 22 min	2:05 pm MDT (20:05 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
SAT	used from 0 nm out; 63 nm from the line	160/18	180/22 17°	190/16 14°	210/16 9°	220/16 -5°	200/11 -14°	250/8 -29°	330/8 -40°	020/26 -51°
ABI	used from 50 nm out; 94 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°
LBB	used from 249 nm out; 25 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°
TCC	used from 348 nm out; 51 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 498 nm out; 76 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 697 nm out; 36 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 846 nm out; 74 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 995 nm out; 69 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 1095 nm out; 75 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
AUS Austin, TX	departure	VFR Sky: a few clouds at 12,000 feet	from the south (170°) at 3 knots	10+ mi	none	541 ft	2:53 am CDT (07:53 UTC)
GTU Georgetown, TX	20 nm out, 19 nm northeast of the line, tower	VFR Sky: scattered clouds at 2,100 feet, overcast at 16,000 feet	from the south-southeast (160°) at 4 knots	10+ mi	16,000 ft	789 ft	08:32 UTC
ABI Abilene, TX	169 nm out, 16 nm northeast of the line, tower	VFR	from the south (170°) at 9 knots	10+ mi	none	1,790 ft	07:52 UTC
LBB Lubbock, TX	299 nm out, 9 nm southwest of the line, tower	VFR	from the south (180°) at 13 knots, gusting to 23	10+ mi	none	3,282 ft	07:53 UTC
TCC Tucumcari, NM	428 nm out, 7 nm south of the line	VFR Sky: a few clouds at 8,000 feet, scattered clouds at 10,000 feet, a broken layer at 12,000 feet Weather: light rain	from the south-southwest (210°) at 7 knots	10+ mi	12,000 ft	4,064 ft	07:53 UTC
AXX Angel Fire, NM	537 nm out, 9 nm southwest of the line	VFR	from the west-southwest (250°) at 12 knots	10+ mi	none	8,379 ft	08:35 UTC
MTJ Montrose, CO	707 nm out, 4 nm northwest of the line	VFR	from the north-northwest (340°) at 6 knots	10+ mi	none	5,758 ft	07:53 UTC
GJT Grand Junction, CO	756 nm out, 8 nm northeast of the line, tower	VFR Sky: a few clouds at 6,000 feet, a broken layer at 8,500 feet, overcast at 11,000 feet	from the east-southeast (120°) at 19 knots, gusting to 26	10+ mi	8,500 ft	4,861 ft	07:53 UTC
OGD Ogden, UT	955 nm out, 4 nm northwest of the line, tower	VFR Sky: overcast at 6,000 feet Weather: light rain	from the southeast (130°) at 3 knots	10+ mi	6,000 ft	4,472 ft	07:53 UTC
BMC Brigham City, UT	975 nm out, 16 nm northeast of the line	VFR Sky: a few clouds at 6,500 feet, a broken layer at 8,000 feet, overcast at 9,000 feet	from the north-northwest (340°) at 4 knots	10+ mi	8,000 ft	4,229 ft	08:35 UTC
TWF Twin Falls, ID	1095 nm out, 7 nm southwest of the line, tower	VFR Sky: overcast at 3,900 feet Weather: light rain	from the south-southwest (200°) at 12 knots	9 mi	3,900 ft	4,153 ft	07:53 UTC
BOI Boise, ID	destination	VFR Sky: overcast at 9,500 feet	from the west-northwest (300°) at 8 knots	10+ mi	9,500 ft	2,871 ft	1:53 am MDT (07:53 UTC)

The highest airport on this list sits at 8,379 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, 12:21 pm MDT (18:21 UTC)

Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for BOI

From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 8,000 feet
From Mon 2:00 am MDT (08:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet

The forecast for AUS, the departure

From Mon 1:00 am CDT (06:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 1,500 feet, a few clouds at 25,000 feet
From Mon 6:00 am CDT (11:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, overcast at 1,500 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 3,500 feet
30% chance between Mon 1:00 pm CDT (18:00 UTC) and 7:00 pm CDT (00:00 UTC): light thunderstorms with rain, a broken layer at 3,500 feet (thunderheads)
From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Tue 2:00 am CDT (07:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, overcast at 1,500 feet
At times between Tue 4:00 am CDT (09:00 UTC) and 7:00 am CDT (12:00 UTC): a broken layer at 800 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 AUS 7:02 pm CDT (00:02 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

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · 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: Austin-Bergstrom International, Boise Air Trml/Gowen Field.