Plan a flight · Mon 9:58 am CDT (14:58 UTC)

Williston Basin International to Salt Lake City International XWA → SLC

570 nautical miles (656 statute miles) southwest on a straight line, true course 221°, about 213° magnetic at the departure end (variation 8E). At 120 knots that is 4 h 45 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 1:43 pm MDT (19:43 UTC). Right now XWA is IFR, wind from the northeast (040°) at 8 knots; SLC is VFR, wind from the south (190°) at 14 knots, gusting to 23. 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: 4 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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 460 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 560 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 330 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 XWA.

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

A319 at 19,000 ft, 31 nm south, 8:53 am CDT (13:53 UTC): moderate turbulence, moderate rime icing, -12 °C, wind 234° at 38 knots, remarks: during the descent. At the destination end, 31 nm south 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
C340 at 6,000 ft, 13 nm west, 9:55 am CDT (14:55 UTC): no turbulence, light icing, -2 °C. 70 nm along the route, 13 nm west of the line.
as filed, and in English
```
SDY UA /OV SDY240043/TM 1455/FL060/TP C340/TA M02/TB NEG/IC LGT CLR/ZLC
```
Report
a routine report filed through SDY
Where
43 nm southwest (240°) of SDY
Time
14:55 UTC
Height
at 6,000 ft
Aircraft
C340
Temperature
−2 °C
Turbulence
none
Icing
light clr/zlc
PC12 at 11,500 ft, 30 nm northwest, 8:37 am CDT (13:37 UTC): a routine report with nothing remarked on. 520 nm along the route, 30 nm northwest 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
A21N at 18,000 ft, 10 nm southeast, 9:36 am CDT (14:36 UTC): light rime icing from 18,000 ft to 19,500 ft, -17 °C. At the destination end, 10 nm southeast of the line.
as filed, and in English
```
SLC UA /OV TCH075015/TM 1436/FL180/TP A21N/TA M17/IC LGT RIME 180-195 /ZLC
```
Report
a routine report filed through SLC
Where
15 nm east (075°) of TCH
Time
14:36 UTC
Height
at 18,000 ft
Aircraft
A21N
Temperature
−17 °C
Icing
light rime from 18,000 ft to 19,500 ft zlc
E75L descending, 5 nm west, 8:55 am CDT (13:55 UTC): no icing, overcast above 7,000 ft, 6 °C, remarks: moderate precip. At the destination end, 5 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, 5 nm east, 8:30 am CDT (13:30 UTC): light turbulence. At the destination end, 5 nm east 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
A321 at 29,000 ft, 4 nm north, 9:49 am CDT (14:49 UTC): a routine report with nothing remarked on. At the destination end, 4 nm north of the line.
as filed, and in English
```
SLC UA /OV TCH/TM 1449/FL290/TP A321/SK TOPS 270/ZLC
```
Report
a routine report filed through SLC
Where
over TCH
Time
14:49 UTC
Height
at 29,000 ft
Aircraft
A321
Sky
tops 27,000 ft; zlc
B738 at 20,000 ft, 29 nm west, 9:43 am CDT (14:43 UTC): light to moderate chop turbulence, a trace of rime icing from 13,000 ft to 18,000 ft, -3 °C, remarks: during the climb. At the destination end, 29 nm west of the line.
as filed, and in English
```
SLC UA /OV TCH265028/TM 1443/FL200/TP B738/WX TOPS FL210/TA M3/TB LGT-MOD CHOP/IC TRACE RIME 130-180/RM DURC
```
Report
a routine report filed through SLC
Where
28 nm west (265°) of TCH
Time
14:43 UTC
Height
at 20,000 ft
Aircraft
B738
Weather
tops, FL210
Temperature
−3 °C
Turbulence
light to moderate chop
Icing
trace rime from 13,000 ft to 18,000 ft
Remarks
during the climb
CRJ7 at 7,000 ft, 6 nm north, 9:14 am CDT (14:14 UTC): light chop turbulence. At the destination end, 6 nm north of the line.
as filed, and in English
```
SLC UA /OV 2N TCH/TM 1414/FL070/TP CRJ7/SK B065/TB LGT CHOP
```
Report
a routine report filed through SLC
Where
2N tch
Time
14:14 UTC
Height
at 7,000 ft
Aircraft
CRJ7
Sky
B065
Turbulence
light chop
B190 at 12,000 ft, 16 nm south, 8:39 am CDT (13:39 UTC): light rime icing, remarks: during the climb. At the destination end, 16 nm south 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
A321 at 14,000 ft, 21 nm south, 8:15 am CDT (13:15 UTC): light to moderate turbulence, remarks: during the climb. At the destination end, 21 nm south 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
CRJ7 at 12,000 ft, 45 nm south, 7:01 am CDT (12:01 UTC): remarks: during the climb DITTI1. At the destination end, 45 nm south 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

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 6 forecast points nearest it (DIK, MLS, BIL, LND, RKS, SLC). 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	310° at 4 kt	0	-1 °C	120 kt	4 h 45 min	1:43 pm MDT (19:43 UTC)
6,500 ft	280° at 5 kt	+2 kt	-1 °C	118 kt	4 h 50 min	1:48 pm MDT (19:48 UTC)
8,500 ft	230° at 13 kt	+12 kt	2 °C	108 kt	5 h 17 min	2:15 pm MDT (20:15 UTC)
10,500 ft	230° at 18 kt	+18 kt	0 °C	102 kt	5 h 35 min	2:33 pm MDT (20:33 UTC)
12,500 ft	230° at 23 kt	+22 kt	-2 °C	98 kt	5 h 49 min	2:47 pm MDT (20:47 UTC)
14,500 ft	230° at 26 kt	+26 kt	-6 °C	94 kt	6 h 04 min	3:02 pm MDT (21:02 UTC)
16,500 ft	220° at 29 kt	+29 kt	-11 °C	91 kt	6 h 16 min	3:14 pm MDT (21:14 UTC)
18,000 ft FL180	220° at 32 kt	+32 kt	-14 °C	88 kt	6 h 29 min	3:27 pm MDT (21:27 UTC)
24,000 ft FL240	210° at 48 kt	+48 kt	-26 °C	72 kt	7 h 55 min	4:53 pm MDT (22:53 UTC)
30,000 ft FL300	220° at 58 kt	+58 kt	-33 °C	62 kt	9 h 12 min	6:10 pm MDT (00:10 UTC)
34,000 ft FL340	220° at 59 kt	+59 kt	-38 °C	61 kt	9 h 21 min	6:19 pm MDT (00:19 UTC)
39,000 ft FL390	220° at 56 kt	+56 kt	-44 °C	64 kt	8 h 54 min	5:52 pm MDT (23:52 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	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
DIK	used from 0 nm out; 88 nm from the line	330/11 1°	230/20 4°	220/22 0°	230/29 -12°	240/27 -25°	240/40 -34°	230/49 -37°	240/55 -44°
MLS	used from 50 nm out; 65 nm from the line	320/9 -2°	270/14 0°	260/22 -1°	220/30 -14°	210/43 -26°	230/53 -34°	230/54 -38°	230/59 -44°
BIL	used from 200 nm out; 60 nm from the line	L/V	250/11 -1°	240/20 -2°	230/28 -15°	220/28 -28°	220/53 -34°	220/55 -39°	220/63 -44°
LND	used from 300 nm out; 75 nm from the line		220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°
RKS	used from 450 nm out; 80 nm from the line		210/15	220/17 -1°	220/32 -14°	220/69 -25°	220/70 -30°	220/70 -39°	220/56 -44°
SLC	used from 500 nm out; 45 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°

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
XWA Williston, ND	departure	IFR Sky: a broken layer at 600 feet, overcast at 900 feet Weather: light rain, mist	from the northeast (040°) at 8 knots	3 mi	600 ft	2,356 ft	9:51 am CDT (14:51 UTC)
SDY Sidney, MT	40 nm out, 9 nm east of the line	IFR Sky: overcast at 600 feet Weather: light rain	from the north-northeast (030°) at 7 knots	10+ mi	600 ft	1,985 ft	13:56 UTC
GDV Glendive, MT	80 nm out, 12 nm southeast of the line	low IFR Sky: overcast at 400 feet Weather: light rain	from the northeast (040°) at 7 knots	10+ mi	400 ft	2,458 ft	13:56 UTC
MLS Miles City, MT	140 nm out, 5 nm southeast of the line	IFR Sky: overcast at 700 feet	from the northwest (310°) at 12 knots	9 mi	700 ft	2,634 ft	14:53 UTC
GEY Greybull, WY	290 nm out, 5 nm east of the line	marginal VFR Sky: overcast at 1,100 feet	from the northwest (320°) at 6 knots	10+ mi	1,100 ft	3,941 ft	14:04 UTC
DUB Dubois, WY	380 nm out, 16 nm northwest of the line	low IFR Sky: overcast at 200 feet Weather: fog	from the southeast (130°) at 7 knots	0.25 mi	200 ft	7,298 ft	14:35 UTC
BPI Big Piney, WY	430 nm out, 6 nm south of the line	VFR Sky: overcast at 3,300 feet	from the south-southeast (150°) at 8 knots	10+ mi	3,300 ft	6,993 ft	13:53 UTC
EMM Kemmerer, WY	480 nm out, 16 nm southeast of the line	VFR Sky: scattered clouds at 4,000 feet	from the south (180°) at 7 knots	10+ mi	none	7,288 ft	14:35 UTC
OGD Ogden, UT	550 nm out, 15 nm northwest of the line, tower	VFR Sky: a broken layer at 3,800 feet, overcast at 5,000 feet Weather: light rain	calm	10+ mi	3,800 ft	4,472 ft	14:53 UTC
SLC Salt Lake City, UT	destination	VFR Sky: a few clouds at 4,000 feet, scattered clouds at 6,000 feet, a broken layer at 8,000 feet, overcast at 14,000 feet Weather: light rain	from the south (190°) at 14 knots, gusting to 23	10+ mi	8,000 ft	4,230 ft	8:54 am MDT (14:54 UTC)

The highest airport on this list sits at 7,298 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SLC when you get there the forecast at the estimated arrival, 1:43 pm MDT (19:43 UTC)

Wind from the south at 11 knots, visibility more than 6 miles, light rain showers, a few clouds at 2,000 feet, a broken layer at 5,000 feet VFR

The whole forecast for SLC

From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, a few clouds at 2,000 feet, a broken layer at 5,000 feet
From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
30% chance between Mon 3:00 pm MDT (21:00 UTC) and 6:00 pm MDT (00:00 UTC): wind variable at 15 knots, gusting to 25, visibility 4 miles, thunderstorms with rain, a broken layer at 3,000 feet (thunderheads)
From Mon 11:00 pm MDT (05:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 3,500 feet

The forecast for XWA, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the northeast at 10 knots, visibility 6 miles, light rain, mist, a broken layer at 700 feet, overcast at 1,100 feet
From Mon 9:00 am CDT (14:00 UTC): wind from the north-northeast at 10 knots, visibility 2 miles, light rain, mist, overcast at 400 feet
30% chance between Mon 9:00 am CDT (14:00 UTC) and 11:00 am CDT (16:00 UTC): visibility 1 mile, light rain snow, mist
From Mon 1:00 pm CDT (18:00 UTC): wind from the north at 10 knots, visibility 4 miles, light rain, mist, overcast at 500 feet
From Mon 4:00 pm CDT (21:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, overcast at 600 feet
From Mon 9:00 pm CDT (02:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, overcast at 500 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 XWA 7:10 pm CDT (00:10 UTC), at SLC 6:50 pm MDT (00:50 UTC) (civil twilight ends 7:18 pm MDT (01:18 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 northern Rockies · loop National Weather Service

Radar now, the southern 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: Williston Basin International, Salt Lake City International.