Plan a flight · Sun 5:26 pm PDT (00:26 UTC)

Seattle Paine Field International to Rosebud Sioux Tribal Airport PAE → SUO

939 nautical miles (1,080 statute miles) east on a straight line, true course 099°, about 083° magnetic at the departure end (variation 16E). At 120 knots that is 6 h 08 min at the quickest height in today's winds (39,000 ft, a 33-knot tailwind), arriving about 1:34 am CDT (06:34 UTC), after sunset at the destination. Right now PAE is VFR, wind from the north-northwest (340°) at 7 knots; SUO is IFR, wind from the north-northeast (020°) at 4 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: 3 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 W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 579 to 709 nm out.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 70W
VALID UNTIL 0155Z
MT WY
FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL320.

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 25,000 ft to 39,000 ft. Over the first 0 nm of the route.
AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 120 to 340 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 200 to 629 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 260 to 839 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 270 to 709 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 539 to 659 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, 579 nm along 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 PAE.

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

E75L at 14,000 ft, 10 nm southwest, 4:22 pm PDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 350 nm along the route, 10 nm southwest of the line.
as filed, and in English
```
MSO UA /OV 32S/TM 2322/FL140/TP E75L/TB MOD 140-210/RM DURC /ZLC
```
Report
a routine report filed through MSO
Where
over 32S
Time
23:22 UTC
Height
at 14,000 ft
Aircraft
E75L
Turbulence
moderate from 14,000 ft to 21,000 ft
Remarks
during the climb zlc
C172 at 5,500 ft, 39 nm south, 3:17 pm PDT (22:17 UTC): a trace of rime icing, 0 °C, remarks: zse. 190 nm along the route, 39 nm south of the line.
as filed, and in English
```
PUW UA /OV PUW250030/TM 2217/FL055/TP C172/TA 00/IC TRACE RIME/RM -ZSE
```
Report
a routine report filed through PUW
Where
30 nm west (250°) of PUW
Time
22:17 UTC
Height
at 5,500 ft
Aircraft
C172
Temperature
0 °C
Icing
trace rime
Remarks
zse
B739 at 3,700 ft, 13 nm north, 2:58 pm PDT (21:58 UTC): overcast above 3,700 ft, remarks: during the descent ils runway 12. 340 nm along the route, 13 nm north of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 2158/FL037/TP B739/SK OVC037/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
21:58 UTC
Height
at 3,700 ft
Aircraft
B739
Sky
overcast from 3,700 ft
Remarks
during the descent ils runway 12
B738 at 24,000 ft, 18 nm south, 4:13 pm PDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. 439 nm along the route, 18 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN270030/TM 2313/FL240/TP B738/RM SN TOP FL 240 /ZLC
```
Report
a routine report filed through BZN
Where
30 nm west (270°) of BZN
Time
23:13 UTC
Height
at 24,000 ft
Aircraft
B738
Remarks
snow top flight level at 24,000 ft zlc
BE9T at 17,500 ft, 41 nm south, 3:40 pm PDT (22:40 UTC): no turbulence, light icing, -6 °C, remarks: ZDVWC-22. 699 nm along the route, 41 nm south of the line.
as filed, and in English
```
GCC UA /OV CZI020012/TM 2240/FL175/TP BE9T/TA M06/TB NEG/IC LGT MIX /RM ZDVWC-22
```
Report
a routine report filed through GCC
Where
12 nm north (020°) of CZI
Time
22:40 UTC
Height
at 17,500 ft
Aircraft
BE9T
Temperature
−6 °C
Turbulence
none
Icing
light mix
Remarks
ZDVWC-22
A21N at 35,000 ft, 20 nm southwest, 3:47 pm PDT (22:47 UTC): no turbulence, remarks: ZDVWC-32. 729 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
GCC UA /OV GCC/TM 2247/FL350/TP A21N/TB NEG /RM ZDVWC-32
```
Report
a routine report filed through GCC
Where
over GCC
Time
22:47 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
none
Remarks
ZDVWC-32

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 10 forecast points nearest it (SEA, YKM, GEG, LWS, GPI, DLN, BIL, MLS, RAP, PIR). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	080° at 14 kt	+13 kt	5 °C	107 kt	8 h 47 min	4:13 am CDT (09:13 UTC)
7,500 ft	090° at 10 kt	+11 kt	1 °C	109 kt	8 h 37 min	4:03 am CDT (09:03 UTC)
9,500 ft	130° at 8 kt	+8 kt	-1 °C	112 kt	8 h 23 min	3:49 am CDT (08:49 UTC)
11,500 ft	190° at 11 kt	+3 kt	-3 °C	117 kt	8 h 02 min	3:28 am CDT (08:28 UTC)
13,500 ft	200° at 14 kt	0	-6 °C	120 kt	7 h 50 min	3:16 am CDT (08:16 UTC)
15,500 ft	210° at 17 kt	−2 kt	-10 °C	122 kt	7 h 42 min	3:08 am CDT (08:08 UTC)
17,500 ft	210° at 20 kt	−4 kt	-14 °C	124 kt	7 h 34 min	3:00 am CDT (08:00 UTC)
18,000 ft FL180	210° at 21 kt	−5 kt	-15 °C	125 kt	7 h 31 min	2:57 am CDT (07:57 UTC)
24,000 ft FL240	220° at 32 kt	−12 kt	-24 °C	132 kt	7 h 07 min	2:33 am CDT (07:33 UTC)
30,000 ft FL300	220° at 40 kt	−11 kt	-36 °C	131 kt	7 h 10 min	2:36 am CDT (07:36 UTC)
34,000 ft FL340	230° at 47 kt	−23 kt	-41 °C	143 kt	6 h 34 min	2:00 am CDT (07:00 UTC)
39,000 ft FL390	240° at 49 kt	−33 kt	-45 °C	153 kt	6 h 08 min	1:34 am CDT (06:34 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
SEA	used from 0 nm out; 35 nm from the line	360/9	350/10 1°	010/10 -5°	030/20 -11°	020/60 -17°	010/86 -26°	360/90 -40°	010/68 -42°	360/31 -43°
YKM	used from 50 nm out; 67 nm from the line	030/16	020/18 0°	030/30 -8°	030/23 -13°	020/40 -23°	010/73 -29°	010/54 -36°	360/29 -37°	330/16 -40°
GEG	used from 100 nm out; 69 nm from the line		050/18 -2°	060/19 -8°	L/V -11°	160/11 -24°	190/17 -31°	200/19 -35°	220/14 -37°	250/11 -41°
LWS	used from 250 nm out; 66 nm from the line	010/5	050/14 -2°	040/12 -6°	160/7 -10°	190/30 -22°	200/54 -27°	200/48 -35°	210/40 -37°	230/32 -41°
GPI	used from 300 nm out; 94 nm from the line		060/19 -3°	110/11 -8°	130/6 -8°	200/40 -19°	190/58 -28°	200/101 -39°	220/73 -43°	230/41 -43°
DLN	used from 350 nm out; 83 nm from the line			080/10 -3°	180/8 -3°	180/23 -14°	200/58 -22°	200/80 -36°	220/85 -41°	230/81 -45°
BIL	used from 499 nm out; 56 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
MLS	used from 649 nm out; 92 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
RAP	used from 749 nm out; 59 nm from the line		120/15 12°	180/22 11°	220/26 5°	230/35 -9°	240/40 -22°	240/50 -37°	240/51 -41°	240/47 -47°
PIR	used from 899 nm out; 73 nm from the line		L/V 17°	230/13 12°	220/22 6°	250/31 -9°	250/34 -21°	240/50 -35°	230/61 -43°	240/62 -51°

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
PAE Everett, WA	departure	VFR	from the north-northwest (340°) at 7 knots	10+ mi	none	606 ft	4:53 pm PDT (23:53 UTC)
EAT Wenatchee, WA	90 nm out, 15 nm south of the line	VFR Sky: overcast at 9,000 feet	from the northeast (040°) at 10 knots, gusting to 19	10+ mi	9,000 ft	1,248 ft	23:55 UTC
MWH Moses Lake, WA	130 nm out, 20 nm southwest of the line, tower	VFR Sky: a broken layer at 10,000 feet	from the east-northeast (070°) at 14 knots	10+ mi	10,000 ft	1,188 ft	23:52 UTC
GEG Spokane, WA	190 nm out, 20 nm north of the line, tower	VFR Sky: a broken layer at 5,500 feet, a broken layer at 7,500 feet, a broken layer at 10,000 feet	from the northeast (050°) at 14 knots	10+ mi	5,500 ft	2,385 ft	23:53 UTC
MSO Missoula, MT	340 nm out, 13 nm north of the line, tower	marginal VFR Sky: overcast at 3,200 feet Weather: light rain	from the south (180°) at 3 knots	4 mi	3,200 ft	3,205 ft	23:53 UTC
BZN Bozeman, MT	469 nm out, 18 nm south of the line, tower	low IFR Sky: scattered clouds at 200 feet, scattered clouds at 700 feet, overcast at 1,100 feet Weather: snow, fog	calm	0.5 mi	1,100 ft	4,473 ft	23:56 UTC
LVM Livingston, MT	499 nm out, 14 nm south of the line	low IFR Sky: overcast at 400 feet Weather: light snow, mist	from the east (080°) at 14 knots	0.75 mi	400 ft	4,659 ft	00:23 UTC
BIL Billings, MT	579 nm out, 18 nm north of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light rain, mist	from the north (010°) at 14 knots	6 mi	800 ft	3,662 ft	23:53 UTC
SHR Sheridan, WY	659 nm out, 18 nm south of the line	IFR Sky: overcast at 800 feet Weather: rain, mist	from the northeast (050°) at 6 knots	5 mi	800 ft	4,021 ft	23:53 UTC
RAP Rapid City, SD	829 nm out, 6 nm northeast of the line, tower	marginal VFR Sky: a broken layer at 1,400 feet, overcast at 2,000 feet	from the northeast (050°) at 8 knots	10+ mi	1,400 ft	3,203 ft	00:03 UTC
SUO Rosebud, SD	destination	IFR Sky: overcast at 600 feet	from the north-northeast (020°) at 4 knots	7 mi	600 ft	2,724 ft	7:15 pm CDT (00:15 UTC)

The highest airport on this list sits at 4,659 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SUO when you get there the forecast at the estimated arrival, 1:34 am CDT (06:34 UTC)

SUO has no terminal forecast; use the nearest airport that does.

The forecast for PAE, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the northwest at 10 knots, gusting to 19, visibility more than 6 miles, clear skies
From Sun 7:00 pm PDT (02:00 UTC): wind from the north at 3 knots, visibility more than 6 miles, clear skies
From Mon 1:00 am PDT (08:00 UTC): wind light and variable, visibility more than 6 miles, patches of fog, clear skies
From Mon 10:00 am PDT (17:00 UTC): wind from the east-southeast at 3 knots, visibility more than 6 miles, clear skies
From Mon 1:00 pm PDT (20:00 UTC): wind from the northwest at 3 knots, visibility more than 6 miles, clear skies

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 PAE 6:26 pm PDT (01:26 UTC), at SUO 7:05 pm CDT (00:05 UTC) (civil twilight ends 7:34 pm CDT (00:34 UTC)). At 120 knots the arrival at SUO is before sunrise there (7:53 am CDT (12:53 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 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: Seattle Paine Field International, Rosebud Sioux Tribal Airport.