Plan a flight · Mon 7:12 am MST (14:12 UTC)

Phoenix Sky Harbor International to Great Falls International PHX → GTF

844 nautical miles (971 statute miles) north on a straight line, true course 002°, about 350° magnetic at the departure end (variation 12E). At 120 knots that is 4 h 34 min at the quickest height in today's winds (30,000 ft, a 65-knot tailwind), arriving about 12:46 pm MDT (18:46 UTC). Right now PHX is VFR, wind from the south-southeast (160°) at 7 knots; GTF is low IFR, wind from the west-northwest (290°) at 5 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 W27W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the west at 45 knots, until 8:55 am MST (15:55 UTC). Over the route from 447 to 566 nm out.

as issued

WSUS33 KKCI 121355
MKCW WST 121355
CONVECTIVE SIGMET 27W
VALID UNTIL 1555Z
WY UT ID
FROM 40E PIH-20NW BPI-50E SLC-20SW SLC-40E PIH
DMSHG AREA TS MOV FROM 26045KT. TOPS TO FL270.

AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole route.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 40 to 288 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 40 to 248 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 70 to 308 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 209 to 705 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 last 308 nm of the route.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 119 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 PHX.

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

B752 at 10,000 ft, 15 nm east, 6:15 am MST (13:15 UTC): moderate turbulence, remarks: during the climb. At the departure end, 15 nm east of the line.
as filed, and in English
```
PHX UA /OV PXR050015/TM 1315/FL100/TP B752/TB MOD/RM DURC
```
Report
a routine report filed through PHX
Where
15 nm northeast (050°) of PXR
Time
13:15 UTC
Height
at 10,000 ft
Aircraft
B752
Turbulence
moderate
Remarks
during the climb
BCS3 at 19,000 ft, 26 nm west, 6:32 am MST (13:32 UTC): moderate rime icing, -15 °C. 357 nm along the route, 26 nm west of the line.
as filed, and in English
```
DTA UA /OV DTA038010/TM 1332/FL190/TP BCS3/TA M15/IC MOD RIME 140-190 TOP 200/ZLC
```
Report
a routine report filed through DTA
Where
10 nm northeast (038°) of DTA
Time
13:32 UTC
Height
at 19,000 ft
Aircraft
BCS3
Temperature
−15 °C
Icing
moderate rime from 14,000 ft to 19,000 ft top 200/ZLC
CRJ7 at 16,000 ft, 9 nm west, 6:13 am MST (13:13 UTC): moderate rime icing from 15,000 ft to 19,000 ft, -13 °C. 387 nm along the route, 9 nm west of the line.
as filed, and in English
```
PVU UA /OV FFU165026/TM 1313/FL160/TP CRJ7/SK TOPS 196/TA M13/IC MOD RIME 150-190/ZLC
```
Report
a routine report filed through PVU
Where
26 nm south (165°) of FFU
Time
13:13 UTC
Height
at 16,000 ft
Aircraft
CRJ7
Sky
tops 19,600 ft
Temperature
−13 °C
Icing
moderate rime 150-190/ZLC
PC12 at 17,000 ft, 4 nm east, 5:40 am MST (12:40 UTC): moderate rime icing, -13 °C. 387 nm along the route, 4 nm east of the line.
as filed, and in English
```
PVU UA /OV FFU134026/TM 1240/FL170/TP PC12/TA M13 /IC MOD RIME/ZLC
```
Report
a routine report filed through PVU
Where
26 nm southeast (134°) of FFU
Time
12:40 UTC
Height
at 17,000 ft
Aircraft
PC12
Temperature
−13 °C
Icing
moderate rime/zlc
A319 at 19,000 ft, 10 nm west, 6:53 am MST (13:53 UTC): moderate turbulence, moderate rime icing, -12 °C, wind 234° at 38 knots, remarks: during the descent. 407 nm along the route, 10 nm west of the line.
as filed, and in English
```
SLC UA /OV FFU/TM 1353/FL190/TP A319/TA M12/WV 234038/TB MOD TURB/IC MOD RIME/RM DURD
```
Report
a routine report filed through SLC
Where
over FFU
Time
13:53 UTC
Height
at 19,000 ft
Aircraft
A319
Temperature
−12 °C
Wind
from 234° at 38 knots
Turbulence
moderate turbulence
Icing
moderate rime
Remarks
during the descent
B190 at 14,000 ft, 12 nm west, 6:50 am MST (13:50 UTC): light rime icing, -3 °C. 367 nm along the route, 12 nm west of the line.
as filed, and in English
```
DTA UA /OV DTA034030/TM 1350/FL140/TP B190/TA M03/IC LGT RIME/ZLC
```
Report
a routine report filed through DTA
Where
30 nm northeast (034°) of DTA
Time
13:50 UTC
Height
at 14,000 ft
Aircraft
B190
Temperature
−3 °C
Icing
light rime/zlc
E75L at 17,000 ft, 5 nm south, 5:20 am MST (12:20 UTC): light chop turbulence, light rime icing from 15,500 ft to 18,000 ft, -14 °C, remarks: during the descent. 397 nm along the route, 5 nm south of the line.
as filed, and in English
```
SLC UA /OV FFU140020/TM 1220/FL170/TP E75L/TA M14/TB LGTCHOP/IC LGT RIME 180-155/RM DURD
```
Report
a routine report filed through SLC
Where
20 nm southeast (140°) of FFU
Time
12:20 UTC
Height
at 17,000 ft
Aircraft
E75L
Temperature
−14 °C
Turbulence
lgtchop
Icing
light rime from 18,000 ft to 15,500 ft
Remarks
during the descent
CRJ7 at 12,000 ft, 3 nm west, 5:01 am MST (12:01 UTC): remarks: during the climb DITTI1. 397 nm along the route, 3 nm west of the line.
as filed, and in English
```
SLC UA /OV FFU140015/TM 1201/FL120/TP CRJ7/SK VMC BELOW 110/RM DURC DITTI1
```
Report
a routine report filed through SLC
Where
15 nm southeast (140°) of FFU
Time
12:01 UTC
Height
at 12,000 ft
Aircraft
CRJ7
Sky
visual conditions below 11,000 ft
Remarks
during the climb DITTI1
A321 at 14,000 ft, 11 nm west, 6:15 am MST (13:15 UTC): light to moderate turbulence, remarks: during the climb. 417 nm along the route, 11 nm west of the line.
as filed, and in English
```
SLC UA /OV FFU340010/TM 1315/FL140/TP A321/TB CONT LGT-OCNL MOD TURB/RM DURC
```
Report
a routine report filed through SLC
Where
10 nm north (340°) of FFU
Time
13:15 UTC
Height
at 14,000 ft
Aircraft
A321
Turbulence
continuous lgt-ocnl moderate turbulence
Remarks
during the climb
B190 at 12,000 ft, 11 nm west, 6:39 am MST (13:39 UTC): light rime icing, remarks: during the climb. 427 nm along the route, 11 nm west of the line.
as filed, and in English
```
SLC UA /OV FFU340015/TM 1339/FL120/TP B190/IC LGT RIME/RM DURC
```
Report
a routine report filed through SLC
Where
15 nm north (340°) of FFU
Time
13:39 UTC
Height
at 12,000 ft
Aircraft
B190
Icing
light rime
Remarks
during the climb
E75L descending, 12 nm west, 6:55 am MST (13:55 UTC): no icing, overcast above 7,000 ft, 6 °C, remarks: moderate precip. 447 nm along the route, 12 nm west of the line.
as filed, and in English
```
SLC UA /OV TCH358005/TM 1355/FLDURD/TP E75L/SK OVC070/TA +6/IC NEG/RM MOD PRECIP
```
Report
a routine report filed through SLC
Where
5 nm north (358°) of TCH
Time
13:55 UTC
Height
during the descent
Aircraft
E75L
Sky
overcast from 7,000 ft
Temperature
+6
Icing
none
Remarks
moderate precip
B738 at 20,000 ft, 4 nm north, 6:30 am MST (13:30 UTC): light turbulence. 447 nm along the route, 4 nm north of the line.
as filed, and in English
```
SLC UA /OV SLC040014/TM 1330/FL200/TP B738/TB CONS LGT 200-230 DURC/ZLC
```
Report
a routine report filed through SLC
Where
14 nm northeast (040°) of SLC
Time
13:30 UTC
Height
at 20,000 ft
Aircraft
B738
Turbulence
continuous light from 20,000 ft to 23,000 ft durc/zlc
PC12 at 11,500 ft, 10 nm southwest, 6:37 am MST (13:37 UTC): a routine report with nothing remarked on. 506 nm along the route, 10 nm southwest of the line.
as filed, and in English
```
LGU UA /OV LGU/TM 1337/FL115/TP PC12/SK TOP 115/ZLC
```
Report
a routine report filed through LGU
Where
over LGU
Time
13:37 UTC
Height
at 11,500 ft
Aircraft
PC12
Sky
top 11,500 ft; zlc
BCS1 at 25,000 ft, 46 nm west, 5:22 am MST (12:22 UTC): a routine report with nothing remarked on. 566 nm along the route, 46 nm west of the line.
as filed, and in English
```
PIH UA /OV PIH/TM 1222/FL250/TP BCS1/SK TOP 265/ZLC
```
Report
a routine report filed through PIH
Where
over PIH
Time
12:22 UTC
Height
at 25,000 ft
Aircraft
BCS1
Sky
top 26,500 ft; zlc

6 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 7 forecast points nearest it (PHX, PRC, BCE, SLC, PIH, DLN, GTF). 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	190° at 4 kt	−4 kt		124 kt	6 h 48 min	3:00 pm MDT (21:00 UTC)
6,500 ft	200° at 6 kt	−6 kt	10 °C	126 kt	6 h 42 min	2:54 pm MDT (20:54 UTC)
8,500 ft	200° at 14 kt	−14 kt	2 °C	134 kt	6 h 18 min	2:30 pm MDT (20:30 UTC)
10,500 ft	200° at 23 kt	−22 kt	-2 °C	142 kt	5 h 57 min	2:09 pm MDT (20:09 UTC)
12,500 ft	200° at 28 kt	−27 kt	-4 °C	147 kt	5 h 44 min	1:56 pm MDT (19:56 UTC)
14,500 ft	200° at 34 kt	−32 kt	-8 °C	152 kt	5 h 33 min	1:45 pm MDT (19:45 UTC)
16,500 ft	200° at 40 kt	−37 kt	-12 °C	157 kt	5 h 23 min	1:35 pm MDT (19:35 UTC)
18,000 ft FL180	200° at 44 kt	−41 kt	-15 °C	161 kt	5 h 15 min	1:27 pm MDT (19:27 UTC)
24,000 ft FL240	200° at 59 kt	−55 kt	-26 °C	175 kt	4 h 49 min	1:01 pm MDT (19:01 UTC)
30,000 ft FL300	210° at 74 kt	−65 kt	-32 °C	185 kt	4 h 34 min	12:46 pm MDT (18:46 UTC)
34,000 ft FL340	220° at 76 kt	−62 kt	-37 °C	182 kt	4 h 38 min	12:50 pm MDT (18:50 UTC)
39,000 ft FL390	220° at 69 kt	−55 kt	-44 °C	175 kt	4 h 49 min	1:01 pm MDT (19:01 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
PHX	used from 0 nm out; 25 nm from the line	200/12	210/26 11°	200/30 5°	200/40 0°	220/66 -9°	220/75 -19°	220/83 -27°	230/93 -35°	220/92 -48°
PRC	used from 50 nm out; 22 nm from the line			200/38 5°	200/44 -1°	210/72 -11°	220/78 -20°	220/85 -29°	230/99 -36°	230/105 -47°
BCE	used from 149 nm out; 84 nm from the line				200/31 -2°	190/46 -14°	210/72 -24°	210/87 -30°	220/89 -38°	220/78 -46°
SLC	used from 348 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 496 nm out; 64 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°
DLN	used from 645 nm out; 59 nm from the line			L/V -3°	170/16 -6°	180/21 -18°	190/27 -30°	210/63 -33°	210/62 -36°	210/51 -42°
GTF	used from 745 nm out; 74 nm from the line		L/V	L/V -4°	230/12 -3°	210/12 -17°	190/23 -29°	200/48 -39°	210/69 -39°	220/66 -42°

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
PHX Phoenix, AZ	departure	VFR Sky: scattered clouds at 7,000 feet, a broken layer at 10,000 feet	from the south-southeast (160°) at 7 knots	10+ mi	10,000 ft	1,134 ft	6:51 am MST (13:51 UTC)
DVT Phoenix, AZ	20 nm out, 6 nm southwest of the line, tower	VFR Sky: a broken layer at 6,500 feet, overcast at 9,000 feet	from the southeast (140°) at 6 knots	10+ mi	6,500 ft	1,478 ft	13:53 UTC
GCN Grand Canyon, AZ	149 nm out, 11 nm west of the line, tower	IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet Weather: mist	from the south-southwest (210°) at 11 knots, gusting to 17	4 mi	600 ft	6,608 ft	13:54 UTC
PGA Page, AZ	209 nm out, 21 nm east of the line	VFR Sky: overcast at 7,500 feet Weather: light rain	from the west-southwest (240°) at 3 knots	10+ mi	7,500 ft	4,316 ft	13:53 UTC
BCE Bryce Canyon, UT	258 nm out, 14 nm west of the line	marginal VFR Sky: scattered clouds at 900 feet, a broken layer at 2,200 feet, overcast at 2,700 feet Weather: light rain	from the southeast (140°) at 8 knots	10+ mi	2,200 ft	7,589 ft	13:53 UTC
PVU Provo, UT	407 nm out, 1 nm northeast of the line, tower	VFR Sky: scattered clouds at 3,000 feet, a broken layer at 5,000 feet, overcast at 7,000 feet Weather: light rain	from the east-southeast (120°) at 9 knots	10+ mi	5,000 ft	4,496 ft	13:56 UTC
SLC Salt Lake City, UT	437 nm out, 13 nm west of the line, tower	VFR Sky: a few clouds at 2,000 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet, a broken layer at 20,000 feet	from the south-southeast (160°) at 18 knots, gusting to 27	10+ mi	9,500 ft	4,230 ft	13:54 UTC
IDA Idaho Falls, ID	606 nm out, 21 nm west of the line, tower	IFR Sky: overcast at 800 feet Weather: rain, mist	from the west-southwest (250°) at 6 knots	6 mi	800 ft	4,743 ft	13:53 UTC
BZN Bozeman, MT	745 nm out, 13 nm east of the line, tower	low IFR Sky: a broken layer at 200 feet, overcast at 900 feet Weather: mist	from the southwest (220°) at 4 knots	2 mi	200 ft	4,473 ft	14:03 UTC
HLN Helena, MT	794 nm out, 24 nm west of the line, tower	marginal VFR Sky: a broken layer at 2,000 feet, overcast at 4,300 feet	from the west (270°) at 6 knots	10+ mi	2,000 ft	3,877 ft	13:53 UTC
GTF Great Falls, MT	destination	low IFR Sky: overcast at 400 feet Weather: mist	from the west-northwest (290°) at 5 knots	0.25 mi	400 ft	3,680 ft	7:53 am MDT (13:53 UTC)

The highest airport on this list sits at 7,589 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GTF when you get there the forecast at the estimated arrival, 12:46 pm MDT (18:46 UTC)

Wind light and variable, visibility more than 6 miles, a broken layer at 700 feet IFR

The whole forecast for GTF

From Mon 8:00 am MDT (14:00 UTC): wind light and variable, visibility ¾ mile, mist, sky obscured at 300 feet
At times between Mon 8:00 am MDT (14:00 UTC) and 10:00 am MDT (16:00 UTC): visibility 2 miles, mist, overcast at 400 feet
From Mon 11:00 am MDT (17:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 700 feet
From Mon 10:00 pm MDT (04:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 500 feet

The forecast for PHX, the departure

From Mon 7:00 am MST (14:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, showers nearby, a few clouds at 4,000 feet, scattered clouds at 7,000 feet and more above
From Mon 9:00 am MST (16:00 UTC): wind from the south at 11 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 7,000 feet
From Mon 1:00 pm MST (20:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
From Mon 7:00 pm MST (02:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
From Mon 10:00 pm MST (05:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, showers nearby, a broken layer at 4,000 feet, a broken layer at 7,000 feet
From Tue 3:00 am MST (10:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, a broken layer at 4,000 feet, a broken layer at 7,000 feet
From Tue 6:00 am MST (13:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, a broken layer at 4,000 feet, a broken layer at 7,000 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 PHX 5:57 pm MST (00:57 UTC), at GTF 6:41 pm MDT (00:41 UTC) (civil twilight ends 7:12 pm MDT (01:12 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 Rockies · loop National Weather Service

Radar now, the Pacific Northwest · 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: Phoenix Sky Harbor International, Great Falls International.