Plan a flight · Tue 3:21 am MDT (09:21 UTC)

Northern Colorado Regional to Seattle-Tacoma International FNL → SEA

855 nautical miles (984 statute miles) northwest on a straight line, true course 305°, about 296° magnetic at the departure end (variation 9E). At 120 knots that is 7 h 08 min at the quickest height in today's winds (18,000 ft, no wind along the track), arriving about 9:29 am PDT (16:29 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: 2 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 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 497 nm of the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 24,000 ft to 36,000 ft. Over the route from 20 to 219 nm out.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the route from 30 to 368 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 89 nm along the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 89 nm along the route.
AIRMET SIERRA 9E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 209 to 318 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 378 to 636 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft from 14,000 ft to 18,000 ft. Near the route, 567 nm along the route.

Turbulence AIRMET in force: moderate turbulence from 24,000 ft to 36,000 ft, over the route from 20 to 219 nm out; AIRMET in force: moderate turbulence (due to mountain wave) up to 22,000 ft, near the route, 89 nm along the route. 1 pilot report of turbulence near the line in the last three hours: light chop turbulence up to 23,000 ft, 33 nm southwest, 3:12 am MDT (09:12 UTC). The government's turbulence forecast map ↗

Icing AIRMET in force: moderate icing up to 22,000 ft, over the route from 30 to 368 nm out. No pilot has reported icing near the line in the last three hours. The freezing level is about 10,000 ft (from the winds-aloft temperatures), so icing is possible in cloud above that. The government's icing forecast map ↗

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 FNL.

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

B752 at 24,000 ft, 33 nm southwest, 3:12 am MDT (09:12 UTC): light chop turbulence up to 23,000 ft, remarks: during the climb zdvwc. At the departure end, 33 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN279032/TM 0912/FL240/TP B752/TB LGT CHOP BLO 230/RM DURC. ZDVWC
```
Report
a routine report filed through DEN
Where
32 nm west (279°) of DEN
Time
09:12 UTC
Height
at 24,000 ft
Aircraft
B752
Turbulence
light chop below 23,000 ft
Remarks
during the climb zdvwc
B737 descending, 42 nm southeast, 3:05 am MDT (09:05 UTC): remarks: smooth. At the departure end, 42 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0905/FLDURD/TP B737/RM SMOOTH
```
Report
a routine report filed through DEN
Where
over DEN
Time
09:05 UTC
Height
during the descent
Aircraft
B737
Remarks
smooth
B737 at 7,600 ft, 42 nm southeast, 1:24 am MDT (07:24 UTC): remarks: smooth. At the departure end, 42 nm southeast of the line.
as filed, and in English
```
DEN UA /OV 6 SOUTH/TM 0724/FL076/TP B737/RM SMOOTH
```
Report
a routine report filed through DEN
Where
6 south
Time
07:24 UTC
Height
at 7,600 ft
Aircraft
B737
Remarks
smooth

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 (DEN, RKS, LND, PIH, DLN, BOI, LWS, YKM, SEA). 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	340° at 6 kt	+5 kt	4 °C	115 kt	7 h 26 min	9:47 am PDT (16:47 UTC)
6,500 ft	340° at 9 kt	+7 kt	1 °C	113 kt	7 h 34 min	9:55 am PDT (16:55 UTC)
8,500 ft	310° at 6 kt	+5 kt	2 °C	115 kt	7 h 26 min	9:47 am PDT (16:47 UTC)
10,500 ft	300° at 5 kt	+4 kt	-1 °C	116 kt	7 h 22 min	9:43 am PDT (16:43 UTC)
12,500 ft	280° at 3 kt	+2 kt	-4 °C	118 kt	7 h 15 min	9:36 am PDT (16:36 UTC)
14,500 ft	270° at 3 kt	+1 kt	-8 °C	119 kt	7 h 11 min	9:32 am PDT (16:32 UTC)
16,500 ft	250° at 3 kt	+1 kt	-13 °C	119 kt	7 h 11 min	9:32 am PDT (16:32 UTC)
18,000 ft FL180	240° at 3 kt	0	-16 °C	120 kt	7 h 08 min	9:29 am PDT (16:29 UTC)
24,000 ft FL240	250° at 7 kt	+2 kt	-27 °C	118 kt	7 h 15 min	9:36 am PDT (16:36 UTC)
30,000 ft FL300	240° at 16 kt	+4 kt	-39 °C	116 kt	7 h 22 min	9:43 am PDT (16:43 UTC)
34,000 ft FL340	230° at 20 kt	+4 kt	-45 °C	116 kt	7 h 22 min	9:43 am PDT (16:43 UTC)
39,000 ft FL390	220° at 30 kt	+5 kt	-48 °C	115 kt	7 h 26 min	9:47 am PDT (16:47 UTC)

Based on data from the 13th at 06:00 UTC; valid on the 13th 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
DEN	used from 0 nm out; 61 nm from the line			220/28 9°	220/38 4°	230/44 -13°	230/74 -21°	220/110 -30°	220/120 -38°	220/118 -48°
RKS	used from 99 nm out; 80 nm from the line			220/14	200/16 -3°	200/39 -16°	220/51 -25°	210/64 -40°	210/73 -42°	210/80 -43°
LND	used from 199 nm out; 25 nm from the line			190/5 1°	200/13 -3°	210/33 -16°	220/34 -27°	220/54 -40°	210/57 -43°	210/71 -43°
PIH	used from 298 nm out; 73 nm from the line		020/14	040/10 -1°	130/7 -6°	120/16 -18°	120/32 -31°	170/30 -40°	180/29 -44°	180/16 -41°
DLN	used from 398 nm out; 65 nm from the line			010/12 -2°	040/9 -4°	050/10 -17°	170/6 -31°	220/9 -40°	240/7 -44°	190/9 -46°
BOI	used from 497 nm out; 101 nm from the line		340/20 4°	360/20 -2°	020/10 -7°	040/23 -19°	040/26 -34°	040/32 -40°	030/32 -43°	360/10 -44°
LWS	used from 547 nm out; 68 nm from the line	L/V	320/7 -1°	330/16 -1°	360/15 -4°	030/29 -15°	030/44 -26°	020/56 -41°	030/48 -49°	340/15 -50°
YKM	used from 696 nm out; 50 nm from the line	L/V	280/5 3°	340/13 3°	360/21 -2°	360/30 -14°	360/32 -26°	350/33 -40°	340/41 -50°	340/23 -57°
SEA	used from 795 nm out; 35 nm from the line	230/6	300/10 4°	340/19 3°	330/21 -2°	310/20 -14°	320/26 -24°	320/29 -41°	320/33 -51°	320/28 -58°

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	Elevation
FNL Fort Collins/Loveland, CO	departure	no report just now	5,020 ft
SAA Saratoga, WY	99 nm out, 3 nm north of the line	no report just now	7,014 ft
LND Lander, WY	219 nm out, 25 nm northeast of the line	no report just now	5,588 ft
JAC Jackson, WY	318 nm out, 18 nm northeast of the line, tower	no report just now	6,451 ft
IDA Idaho Falls, ID	368 nm out, 17 nm south of the line, tower	no report just now	4,743 ft
LLJ Challis, ID	477 nm out, 10 nm south of the line	no report just now	5,075 ft
ALW Walla Walla, WA	666 nm out, 7 nm southwest of the line, tower	no report just now	1,194 ft
PSC Pasco, WA	706 nm out, 11 nm southwest of the line, tower	no report just now	410 ft
ELN Ellensburg, WA	775 nm out, 7 nm north of the line	no report just now	1,763 ft
SEA Seattle, WA	destination	no report just now	432 ft

The highest airport on this list sits at 7,014 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

The codes as issued, and in English, for every airport in the table

At SEA when you get there the forecast at the estimated arrival, 9:29 am PDT (16:29 UTC)

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

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Notices to air missions closures and things out of service at both ends; airspace, navigation aids and obstructions near the line

FNL: 25 notices in force, 2 starting within a week. runway 15 closed runway 15/33 closed runway 33 closed all of them, grouped →

closed Airport closed to IFR departure and arrival until Mon 9 Nov, 8:00 pm MST (03:00 UTC) · FNL 08/044
as issued
```
!FNL 08/044 FNL AD AP CLSD TO IFR DEP AND ARR 2608201347-2611100300
```
closed Runway 15/33 closed daily 7:00 am MDT to 10:00 am MDT until Sat 17 Oct, 10:00 am MDT (16:00 UTC) · Daily:1300-1600~DLY 7:00 am MDT to 10:00 am MDT · FNL 10/008
as issued
```
!FNL 10/008 FNL RWY 15/33 CLSD DLY 1300-1600 2610121300-2610171600
```
closed Runway 15/33 closed daily 8:00 pm MDT to 6:00 am MDT until Fri 16 Oct, 6:00 am MDT (12:00 UTC) · Daily:0200-1200~DLY 8:00 pm MDT to 6:00 am MDT · FNL 09/037
as issued
```
!FNL 09/037 FNL RWY 15/33 CLSD DLY 0200-1200 2610040200-2610161200
```
closed Taxiway A4, A5, taxiway A between taxiway B and taxiway A5 closed daily 8:00 pm MDT to 6:00 am MDT until Fri 16 Oct, 6:00 am MDT (12:00 UTC) · Daily:0200-1200~DLY 8:00 pm MDT to 6:00 am MDT · FNL 09/039
as issued
```
!FNL 09/039 FNL TWY A4, A5, TWY A BTN TWY B AND TWY A5 CLSD DLY 0200-1200 2610040200-2610161200
```

SEA: 55 notices in force. all of them, grouped →

closed Apron north Satellite TXL Blue and Green centerline between C20 and Spot 66 closed until Tue 13 Oct, 8:00 am PDT (15:00 UTC) · SEA 10/183
as issued
```
!SEA 10/183 SEA APRON NORTH SATELLITE TXL BLUE AND GREEN CL BTN C20 AND SPOT 66 CLSD 2610130700-2610131500
```
closed Taxiway R closed to aircraft wingspan more than 214 ft until Thu 5 Nov, 11:59 pm PST (07:59 UTC) · SEA 10/138
as issued
```
!SEA 10/138 SEA TWY R CLSD TO ACFT WINGSPAN MORE THAN 214FT 2610080603-2611060759
```
closed Taxiway Q between runway 16L/34R and taxiway T closed until Thu 5 Nov, 11:59 pm PST (07:59 UTC) · SEA 10/137
as issued
```
!SEA 10/137 SEA TWY Q BTN RWY 16L/34R AND TWY T CLSD 2610080603-2611060759
```
closed Taxiway Q between runway 16R/34L and taxiway T closed to aircraft wingspan more than 214 ft until Thu 5 Nov, 11:59 pm PST (07:59 UTC) · SEA 10/136
as issued
```
!SEA 10/136 SEA TWY Q BTN RWY 16R/34L AND TWY T CLSD TO ACFT WINGSPAN MORE THAN 214FT 2610080602-2611060759
```

28 notices near the line (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):

Obstruction tower lights (ASR 1304315) 41°27′N 106°49′W (0.7 nautical miles northeast SAA) 7,004 ft (156 ft above ground level) out of service until Mon 26 Oct, 5:59 pm MDT (23:59 UTC) · 99 nm along the route, 4 nm off the line · SAA 08/039
as issued
```
!CPR 08/039 SAA OBST TOWER LGT (ASR 1304315) 412705.48N1064901.36W (0.7NM NE SAA) 7004FT (156FT AGL) U/S 2608132026-2610262359
```
Navigation aid ILS runway 21 localizer out of service until Tue 20 Oct, 2:00 pm MDT (20:00 UTC), estimated · 368 nm along the route, 17 nm off the line · IDA 10/050
as issued
```
!IDA 10/050 IDA NAV ILS RWY 21 LOC U/S 2610122131-2610202000EST
```
Obstruction tower lights (ASR 1229608) 43°40′N 112°03′W (6.1 nautical miles WNW U56) 5016.1FT (200.1FT above ground level) out of service until Wed 14 Oct, 9:47 pm MDT (03:47 UTC) · 368 nm along the route, 8 nm off the line · U56 09/267
as issued
```
!BOI 09/267 U56 OBST TOWER LGT (ASR 1229608) 434037.10N1120337.90W (6.1NM WNW U56) 5016.1FT (200.1FT AGL) U/S 2609300447-2610150347
```
Navigation aid DME out of service until Fri 7 May, 2:00 pm MDT (20:00 UTC), estimated · 606 nm along the route, 28 nm off the line · IDQ 09/269
as issued
```
!BOI 09/269 IDQ NAV DME U/S 2609301104-2705072000EST
```
Navigation aid VOR out of service until Mon 19 Oct, 2:00 pm MDT (20:00 UTC), estimated · 666 nm along the route, 7 nm off the line · ALW 09/027
as issued
```
!ALW 09/027 ALW NAV VOR U/S 2609280902-2610192000EST
```
Navigation aid ILS runway 20 outer marker out of service until further notice · 666 nm along the route, 7 nm off the line · ALW 04/039
as issued
```
!ALW 04/039 ALW NAV ILS RWY 20 OM U/S 2504220645-PERM
```
Navigation aid ILS runway 20 Trina LOM out of service until further notice · 666 nm along the route, 7 nm off the line · ALW 04/040
as issued
```
!ALW 04/040 ALW NAV ILS RWY 20 TRINA LOM U/S 2504220645-PERM
```
Obstruction tower lights (ASN 2018-ANM-5131-OE) 46°51′N 119°58′W (10.6 nautical miles north M94) 880 ft (200 ft above ground level) out of service until Tue 17 Nov, 4:59 pm MST (23:59 UTC) · 746 nm along the route, 3 nm off the line · M94 10/045
as issued
```
!SEA 10/045 M94 OBST TOWER LGT (ASN 2018-ANM-5131-OE) 465136N1195810W (10.6NM N M94) 880FT (200FT AGL) U/S 2610031410-2611172359
```
Obstruction Power line lights (ASN 2018-ANM-4742-OE) 46°51′N 119°57′W (10.8 nautical miles north M94) 723 ft (200 ft above ground level) out of service until Sat 28 Nov, 4:59 pm MST (23:59 UTC) · 756 nm along the route, 7 nm off the line · M94 09/006
as issued
```
!SEA 09/006 M94 OBST POWER LINE LGT (ASN 2018-ANM-4742-OE) 465150N1195732W (10.8NM N M94) 723FT (200FT AGL) U/S 2609011108-2611282359
```
Obstruction tower lights (ASR 1211170) 46°56′N 120°12′W (14.2 nautical miles ESE ELN) 2815.9FT (254.9FT above ground level) out of service until Tue 17 Nov, 10:15 pm MST (05:15 UTC) · 766 nm along the route, 7 nm off the line · ELN 08/016
as issued
```
!ELN 08/016 ELN OBST TOWER LGT (ASR 1211170) 465654.80N1201214.10W (14.2NM ESE ELN) 2815.9FT (254.9FT AGL) U/S 2608200415-2611180515
```
Obstruction tower lights (ASR 1289054) 47°03′N 120°42′W (7.4 nautical miles WNW ELN) 1977.7FT (176.8FT above ground level) out of service until Thu 12 Nov, 4:40 pm MST (23:40 UTC) · 785 nm along the route, 5 nm off the line · ELN 08/013
as issued
```
!ELN 08/013 ELN OBST TOWER LGT (ASR 1289054) 470353.70N1204217.20W (7.4NM WNW ELN) 1977.7FT (176.8FT AGL) U/S 2608142240-2611122340
```
Obstruction tower lights (ASR 1056094) 47°30′N 121°58′W (9.9 nautical miles east RNT) 3149.0FT (310.0FT above ground level) out of service until Mon 1 Feb, 6:45 pm MST (01:45 UTC) · 845 nm along the route, 9 nm off the line · RNT 10/002
as issued
```
!RNT 10/002 RNT OBST TOWER LGT (ASR 1056094) 473016.30N1215810.00W (9.9NM E RNT) 3149.0FT (310.0FT AGL) U/S 2610050145-2702020145
```
Navigation aid ILS runway 32L out of service until Fri 30 Oct, 5:55 pm MDT (23:55 UTC) · 855 nm along the route, 5 nm off the line · BFI 10/033
as issued
```
!BFI 10/033 BFI NAV ILS RWY 32L U/S 2610091527-2610302355
```
Obstruction tower lights (ASR 1033248) 47°36′N 122°18′W (1.2 nautical miles southeast 0W0) 1048.6FT (636.8FT above ground level) out of service until Thu 7 Jan, 8:00 am MST (15:00 UTC) · 855 nm along the route, 10 nm off the line · 0W0 09/120
as issued
```
!SEA 09/120 0W0 OBST TOWER LGT (ASR 1033248) 473655.00N1221833.00W (1.2NM SE 0W0) 1048.6FT (636.8FT AGL) U/S 2609091500-2701071500
```
Obstruction tower lights (ASR 1307094) 47°36′N 122°20′W (1.3 nautical miles south 0W0) 378 ft (320 ft above ground level) out of service until Wed 21 Oct, 10:23 am MDT (16:23 UTC) · 855 nm along the route, 9 nm off the line · 0W0 09/088
as issued
```
!SEA 09/088 0W0 OBST TOWER LGT (ASR 1307094) 473622.60N1222017.30W (1.3NM S 0W0) 378FT (320FT AGL) U/S 2609061624-2610211623
```
Obstruction tower lights (ASR 1045321) 47°32′N 122°13′W (2.5 nautical miles north W36) 472.8FT (132.9FT above ground level) out of service until Thu 3 Dec, 8:36 pm MST (03:36 UTC) · 855 nm along the route, 7 nm off the line · W36 09/006
as issued
```
!RNT 09/006 W36 OBST TOWER LGT (ASR 1045321) 473230.00N1221325.00W (2.5NM N W36) 472.8FT (132.9FT AGL) U/S 2609050236-2612040336
```
Obstruction tower lights (ASR 1064041) 47°30′N 122°19′W (1.7 nautical miles SSW BFI) 442.9FT (125.0FT above ground level) out of service until Sun 15 Nov, 7:32 am MST (14:32 UTC) · 855 nm along the route, 3 nm off the line · BFI 08/056
as issued
```
!BFI 08/056 BFI OBST TOWER LGT (ASR 1064041) 473014.20N1221903.50W (1.7NM SSW BFI) 442.9FT (125.0FT AGL) U/S 2608171332-2611151432
```
Navigation aid ILS runway 16R LOC/GP out of service until Sat 31 Oct, 8:00 am MDT (14:00 UTC) · 855 nm along the route, 28 nm off the line · PAE 07/064
as issued
```
!PAE 07/064 PAE NAV ILS RWY 16R LOC/GP U/S 2607080600-2610311400
```
Airspace unmanned aircraft (drones) within an area defined as.3 nautical miles radius of 40°08′N 105°05′W (4.1 nautical miles southeast LMO) the surface-400 ft above ground level until Sat 27 Feb, 3:00 pm MST (22:00 UTC) · 0 nm along the route, 19 nm off the line · LMO 02/500
as issued
```
!DEN 02/500 LMO AIRSPACE UAS WI AN AREA DEFINED AS .3NM RADIUS OF 400841N1050530W (4.1NM SE LMO) SFC-400FT AGL 2602272200-2702272200
```
Airspace unmanned aircraft (drones) within an area defined as.5 nautical miles radius of 40°19′N 104°36′W (.8 nautical miles SSE 11V) the surface-400 ft above ground level until Thu 31 Dec, 4:30 pm MST (23:30 UTC) · 0 nm along the route, 20 nm off the line · 11V 01/250
as issued
```
!DEN 01/250 11V AIRSPACE UAS WI AN AREA DEFINED AS .5NM RADIUS OF 401948N1043644W (.8NM SSE 11V) SFC-400FT AGL 2601131837-2612312330
```
Navigation aid localizer runway 03 BC Unusable Beyond 20DEG right of Course until Mon 1 Feb, 2:50 pm MST (21:50 UTC), estimated · 368 nm along the route, 17 nm off the line · IDA 07/069
as issued
```
!IDA 07/069 IDA NAV LOC RWY 03 BC UNUSABLE BEYOND 20DEG RIGHT OF COURSE 2607302150-2702012150EST
```
Airspace unmanned aircraft (drones) within an area defined as YKM073020 to YKM076020 to YKM074023 to YKM072023 to Point of Origin the surface-225 ft above ground level until Fri 30 Oct, 5:59 pm MDT (23:59 UTC) · 766 nm along the route, 19 nm off the line · YKM 07/032
as issued
```
!YKM 07/032 YKM AIRSPACE UAS WI AN AREA DEFINED AS YKM073020 TO YKM076020 TO YKM074023 TO YKM072023 TO POINT OF ORIGIN SFC-225FT AGL 2607272123-2610302359
```
Airspace unmanned aircraft (drones) within an area defined as.7 nautical miles radius of 46°31′N 120°14′W (13.2 nautical miles ESE YKM) the surface-225 ft above ground level until Thu 31 Dec, 4:59 pm MST (23:59 UTC) · 766 nm along the route, 19 nm off the line · YKM 12/037
as issued
```
!YKM 12/037 YKM AIRSPACE UAS WI AN AREA DEFINED AS .7NM RADIUS OF 463143N1201423W (13.2NM ESE YKM) SFC-225FT AGL 2512220343-2612312359
```
Navigation aid VOR/DME not monitor until Tue 13 Oct, 7:00 am MDT (13:00 UTC) · 775 nm along the route, 7 nm off the line · ELN 10/007
as issued
```
!ELN 10/007 ELN NAV VOR/DME NOT MNT 2610130700-2610131300
```
Obstruction crane (ASN Unknown) 47°32′N 122°18′W (.67 nautical miles NNW BFI) Unknown (150 ft above ground level) flagged and lighted until Sat 31 Oct, 12:59 am MDT (06:59 UTC) · 855 nm along the route, 5 nm off the line · BFI 10/005
as issued
```
!BFI 10/005 BFI OBST CRANE (ASN UNKNOWN) 473220N1221852W (.67NM NNW BFI) 
UNKNOWN (150FT AGL) FLAGGED AND LGTD 2610022200-2610310659
```
Obstruction crane (ASN 2026-ANM-1368-NRA) 47°29′N 122°12′W (0.4 nautical miles SSE RNT) 161 ft (130 ft above ground level) flagged until Thu 15 Oct, 5:59 pm MDT (23:59 UTC) · 855 nm along the route, 5 nm off the line · RNT 09/002
as issued
```
!RNT 09/002 RNT OBST CRANE (ASN 2026-ANM-1368-NRA) 472913N1221244W (0.4NM SSE RNT) 161FT (130FT AGL) FLAGGED 2609031522-2610152359
```
Obstruction crane (ASN 2025-ANM-4111-NRA) 47°32′N 122°18′W (0.7 nautical miles northwest BFI) 215 ft (199 ft above ground level) flagged and lighted Mondays-Saturdays 7:00 am MDT to 7:00 pm MDT until Fri 1 Oct 2027, 7:00 pm MDT (01:00 UTC) · Mondays Tuesdays Wednesdays Thursdays Fridays Saturdays · 855 nm along the route, 5 nm off the line · BFI 03/025
as issued
```
!BFI 03/025 BFI OBST CRANE (ASN 2025-ANM-4111-NRA) 473214N1221855W (0.7NM NW BFI) 215FT (199FT AGL) FLAGGED AND LGTD MON-SAT 1300-0100 2603161300-2710020100
```
Obstruction Bldg (ASN 2025-ANM-2-NRA) 47°32′N 122°18′W (0.8 nautical miles northwest BFI) 32 ft (22 ft above ground level) erected until further notice · 855 nm along the route, 5 nm off the line · BFI 05/017
as issued
```
!BFI 05/017 BFI OBST BLDG (ASN 2025-ANM-2-NRA) 473226N1221853W (0.8NM NW BFI) 32FT (22FT AGL) ERECTED 2505031741-PERM
```

From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked 2 minutes ago. The FAA has so far issued eFlight its test feed, which misses some notices (checked against the FAA's own search on 12 October: about a third missing at Santa Barbara and Burbank, none at Atlanta or Las Vegas); the request for the full feed is with the FAA. Times are local to the field. This is for planning; the legal briefing comes from Flight Service or the FAA's own tools.

Daylight

Sunset at FNL 6:21 pm MDT (00:21 UTC), at SEA 6:23 pm PDT (01:23 UTC) (civil twilight ends 6:54 pm PDT (01:54 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times.

The wind over the route live wind map, from Windy.com · drag the time bar for the coming hours; the level menu changes the height

Colours show wind speed, the moving lines its direction, at the surface unless you pick a height. Map and forecast by Windy.com; a second opinion beside the government's winds-aloft table above.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads · the turbulence and icing forecasts: turbulence ↗ · icing ↗

Radar now, the southern Rockies · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Aviation forecast, clouds and visibility, the Southwest, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · cloud cover and bases, visibility, and the areas of low cloud or poor visibility

Aviation forecast, surface weather, the Southwest, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · surface winds, weather, thunderstorms, and the AIRMET boxes for turbulence, icing and strong winds

Aviation forecast, clouds and visibility, the Northwest, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · cloud cover and bases, visibility, and the areas of low cloud or poor visibility

Aviation forecast, surface weather, the Northwest, 3 hours ahead · on the government's site ↗ Aviation Weather Center (NOAA) · surface winds, weather, thunderstorms, and the AIRMET boxes for turbulence, icing and strong winds

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: Northern Colorado Regional, Seattle-Tacoma International.