The U.S. aircraft register, updated daily
Plan a flight · Tue 2:22 am PDT (09:22 UTC)

Seattle-Tacoma International to Seattle Paine Field International SEA → PAE

27 nautical miles (31 statute miles) north on a straight line, true course 003°, about 347° magnetic at the departure end (variation 16E). At 120 knots that is 14 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 2:36 am PDT (09:36 UTC), after sunset at the destination. Right now SEA is VFR, wind from the southeast (130°) at 6 knots; PAE is VFR, wind variable at 3 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: 18 flights in the DOT's last twelve reported months, the route's page.

The return flight

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

No SIGMET or AIRMET covers any part of this route right now.

Turbulence No turbulence warning in force along the route. No pilot has reported turbulence near the line in the last three hours. The government's turbulence forecast map ↗

Icing No icing warning in force along the route. No pilot has reported icing near the line in the last three hours. The freezing level is about 10,500 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 SEA.

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

Not fetched just now.

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 1 forecast point nearest it (SEA). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft270° at 7 kt0120 kt14 min2:36 am PDT (09:36 UTC)
6,500 ft310° at 11 kt+7 kt4 °C113 kt14 min2:36 am PDT (09:36 UTC)
8,500 ft340° at 17 kt+15 kt3 °C105 kt15 min2:37 am PDT (09:37 UTC)
10,500 ft330° at 20 kt+18 kt0 °C102 kt16 min2:38 am PDT (09:38 UTC)
12,500 ft330° at 21 kt+17 kt-3 °C103 kt16 min2:38 am PDT (09:38 UTC)
14,500 ft320° at 20 kt+15 kt-7 °C105 kt15 min2:37 am PDT (09:37 UTC)
16,500 ft320° at 20 kt+14 kt-11 °C106 kt15 min2:37 am PDT (09:37 UTC)
18,000 ft FL180310° at 20 kt+12 kt-14 °C108 kt15 min2:37 am PDT (09:37 UTC)
24,000 ft FL240320° at 26 kt+19 kt-24 °C101 kt16 min2:38 am PDT (09:38 UTC)
30,000 ft FL300320° at 29 kt+21 kt-41 °C99 kt16 min2:38 am PDT (09:38 UTC)
34,000 ft FL340320° at 33 kt+24 kt-51 °C96 kt17 min2:39 am PDT (09:39 UTC)
39,000 ft FL390320° at 28 kt+21 kt-58 °C99 kt16 min2:38 am PDT (09:38 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
SEAused from 0 nm out; 14 nm from the line230/6300/10 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

AirportWhereConditionsWindVisibilityCeilingElevationReported
SEA Seattle, WA departure VFR Sky: a broken layer at 8,500 feet from the southeast (130°) at 6 knots 10+ mi 8,500 ft 432 ft 1:53 am PDT (08:53 UTC)
PAE Everett, WA destination VFR Sky: a few clouds at 7,500 feet, overcast at 12,000 feet variable at 3 knots 10+ mi 12,000 ft 606 ft 1:53 am PDT (08:53 UTC)

The highest airport on this list sits at 606 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

SEA Seattle, WA

the observation and the forecast as issued, and in English
METAR KSEA 130853Z 13006KT 10SM BKN085 08/04 A3012 RMK AO2 SLP207 T00830039 51008
METAR
a routine hourly observation
KSEA
the station, KSEA
130853Z
observed 1:53 am PDT (08:53 UTC)
13006KT
wind from the southeast at 6 knots
10SM
visibility 10 miles
BKN085
a broken layer at 8,500 feet
08/04
temperature 8 °C (46 °F), dew point 4 °C (39 °F)
A3012
altimeter setting 30.12 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP207
sea-level pressure 1020.7 hPa
T00830039
temperature 8.3 °C (47 °F), dew point 3.9 °C (39 °F)
51008
pressure in the last three hours rising, then steady, change 0.8 hPa
TAF KSEA 130802Z 1308/1412 12006KT P6SM BKN090 FM131800 18005KT P6SM OVC070 FM132300 23005KT P6SM OVC070 FM140400 19004KT P6SM SCT025 OVC040 FM140900 18004KT P6SM OVC025
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KSEA
the station, KSEA
130802Z
issued 1:02 am PDT (08:02 UTC)
1308/1412 12006KT P6SM BKN090
valid from Tue 1:00 am PDT (08:00 UTC) to Wed 5:00 am PDT (12:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, a broken layer at 9,000 feet
FM131800 18005KT P6SM OVC070
from Tue 11:00 am PDT (18:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
FM132300 23005KT P6SM OVC070
from Tue 4:00 pm PDT (23:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
FM140400 19004KT P6SM SCT025 OVC040
from Tue 9:00 pm PDT (04:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 4,000 feet
FM140900 18004KT P6SM OVC025
from Wed 2:00 am PDT (09:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, overcast at 2,500 feet

PAE Everett, WA

the observation and the forecast as issued, and in English
METAR KPAE 130853Z AUTO VRB03KT 10SM FEW075 OVC120 10/05 A3012 RMK AO2 SLP201 T01000050 53006
METAR
a routine hourly observation
KPAE
the station, KPAE
130853Z
observed 1:53 am PDT (08:53 UTC)
AUTO
fully automated report, nobody checked it
VRB03KT
wind light and variable
10SM
visibility 10 miles
FEW075
a few clouds at 7,500 feet
OVC120
overcast at 12,000 feet
10/05
temperature 10 °C (50 °F), dew point 5 °C (41 °F)
A3012
altimeter setting 30.12 inches of mercury
RMK
remarks follow
AO2
automated station with a precipitation sensor
SLP201
sea-level pressure 1020.1 hPa
T01000050
temperature 10 °C (50 °F), dew point 5 °C (41 °F)
53006
pressure in the last three hours rising, faster lately, change 0.6 hPa
TAF KPAE 130520Z 1306/1406 VRB04KT P6SM SCT250 FM130900 14003KT P6SM OVC100 FM131900 17006KT P6SM OVC070 FM132300 17005KT P6SM OVC050
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KPAE
the station, KPAE
130520Z
issued 10:20 pm PDT (05:20 UTC)
1306/1406 VRB04KT P6SM SCT250
valid from Mon 11:00 pm PDT (06:00 UTC) to Tue 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
FM130900 14003KT P6SM OVC100
from Tue 2:00 am PDT (09:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, overcast at 10,000 feet
FM131900 17006KT P6SM OVC070
from Tue 12:00 pm PDT (19:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, overcast at 7,000 feet
FM132300 17005KT P6SM OVC050
from Tue 4:00 pm PDT (23:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 5,000 feet

At PAE when you get there the forecast at the estimated arrival, 2:36 am PDT (09:36 UTC)

Wind from the southeast at 3 knots, visibility more than 6 miles, overcast at 10,000 feet VFR

The whole forecast for PAE
  • From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
  • From Tue 2:00 am PDT (09:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, overcast at 10,000 feet
  • From Tue 12:00 pm PDT (19:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, overcast at 7,000 feet
  • From Tue 4:00 pm PDT (23:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 5,000 feet
The forecast for SEA, the departure
  • From Tue 1:00 am PDT (08:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, a broken layer at 9,000 feet
  • From Tue 11:00 am PDT (18:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
  • From Tue 4:00 pm PDT (23:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
  • From Tue 9:00 pm PDT (04:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 4,000 feet
  • From Wed 2:00 am PDT (09:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, overcast at 2,500 feet

PAE:

the forecast as issued, and in English
TAF KPAE 130520Z 1306/1406 VRB04KT P6SM SCT250 FM130900 14003KT P6SM OVC100 FM131900 17006KT P6SM OVC070 FM132300 17005KT P6SM OVC050
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KPAE
the station, KPAE
130520Z
issued 10:20 pm PDT (05:20 UTC)
1306/1406 VRB04KT P6SM SCT250
valid from Mon 11:00 pm PDT (06:00 UTC) to Tue 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
FM130900 14003KT P6SM OVC100
from Tue 2:00 am PDT (09:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, overcast at 10,000 feet
FM131900 17006KT P6SM OVC070
from Tue 12:00 pm PDT (19:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, overcast at 7,000 feet
FM132300 17005KT P6SM OVC050
from Tue 4:00 pm PDT (23:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 5,000 feet

SEA:

the forecast as issued, and in English
TAF KSEA 130802Z 1308/1412 12006KT P6SM BKN090 FM131800 18005KT P6SM OVC070 FM132300 23005KT P6SM OVC070 FM140400 19004KT P6SM SCT025 OVC040 FM140900 18004KT P6SM OVC025
TAF
a terminal aerodrome forecast: the weather expected at the airport, usually for the next 24 or 30 hours
KSEA
the station, KSEA
130802Z
issued 1:02 am PDT (08:02 UTC)
1308/1412 12006KT P6SM BKN090
valid from Tue 1:00 am PDT (08:00 UTC) to Wed 5:00 am PDT (12:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, a broken layer at 9,000 feet
FM131800 18005KT P6SM OVC070
from Tue 11:00 am PDT (18:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
FM132300 23005KT P6SM OVC070
from Tue 4:00 pm PDT (23:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, overcast at 7,000 feet
FM140400 19004KT P6SM SCT025 OVC040
from Tue 9:00 pm PDT (04:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 4,000 feet
FM140900 18004KT P6SM OVC025
from Wed 2:00 am PDT (09:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, overcast at 2,500 feet

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

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

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

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

PAE: 18 notices in force. runway 16R/34L closed all of them, grouped →

  • closed Runway 16R/34L closed Saturdays Tuesdays Wednesdays Thursdays Fridays 11:00 pm PDT to 7:00 am PDT until Sat 31 Oct, 7:00 am PDT (14:00 UTC) · Saturdays Tuesdays Wednesdays Thursdays Fridays · PAE 07/154
    as issued
    !PAE 07/154 PAE RWY 16R/34L CLSD SAT TUE WED THU FRI 0600-1400 2608010600-2610311400
  • closed Taxiway AA closed until Sat 31 Oct, 7:00 am PDT (14:00 UTC) · PAE 07/132
    as issued
    !PAE 07/132 PAE TWY AA CLSD 2607240001-2610311400
  • closed Taxiway A between taxiway A1 and taxiway A3 closed until Sat 31 Oct, 7:00 am PDT (14:00 UTC) · PAE 07/044
    as issued
    !PAE 07/044 PAE TWY A BTN TWY A1 AND TWY A3 CLSD 2607101400-2610311400

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

  • 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, 6:32 am PST (14:32 UTC) · 0 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 32L out of service until Fri 30 Oct, 4:55 pm PDT (23:55 UTC) · 9 nm along the route, 4 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 1307094) 47°36′N 122°20′W (1.3 nautical miles south 0W0) 355 ft (298 ft above ground level) out of service until Thu 19 Nov, 2:34 pm PST (22:34 UTC), estimated · 9 nm along the route, 2 nm off the line · 0W0 10/068
    as issued
    !SEA 10/068 0W0 OBST TOWER LGT (ASR 1307094) 473622.60N1222017.30W (1.3NM S 0W0) 355FT (298FT AGL) U/S 2610051637-2611192234EST
  • 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, 7:00 am PST (15:00 UTC) · on the line, 9 nm along · 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, 9:23 am PDT (16:23 UTC) · 9 nm along the route, 2 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, 7:36 pm PST (03:36 UTC) · 9 nm along the route, 5 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 1032456) 47°37′N 122°21′W (0.6 nautical miles WNW W55) 1014.1FT (564.0FT above ground level) out of service until Thu 15 Oct, 11:30 am PDT (18:30 UTC) · 9 nm along the route, 3 nm off the line · W55 08/303
    as issued
    !SEA 08/303 W55 OBST TOWER LGT (ASR 1032456) 473755.00N1222114.00W (0.6NM WNW W55) 1014.1FT (564.0FT AGL) U/S 2608201731-2610151830
  • Navigation aid DME out of service until Thu 15 Oct, 1:00 pm PDT (20:00 UTC), estimated · 27 nm along the route, 27 nm off the line · CVV 10/126
    as issued
    !SEA 10/126 CVV NAV DME U/S 2610080023-2610152000EST
  • Obstruction tower lights (ASR 1039442) 48°01′N 122°06′W (7.2 nautical miles north S43) 639.1FT (250.0FT above ground level) out of service until Tue 10 Nov, 8:00 pm PST (04:00 UTC) · 27 nm along the route, 10 nm off the line · S43 08/183
    as issued
    !SEA 08/183 S43 OBST TOWER LGT (ASR 1039442) 480127.20N1220644.60W (7.2NM N S43) 639.1FT (250.0FT AGL) U/S 2608121516-2611110400
  • Navigation aid ILS runway 34 out of service until Thu 31 Dec, 3:59 pm PST (23:59 UTC) · 27 nm along the route, 16 nm off the line · AWO 05/001
    as issued
    !AWO 05/001 AWO NAV ILS RWY 34 U/S 2605010058-2612312359
  • 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, 4:59 pm PDT (23:59 UTC) · 0 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 Unknown) 47°32′N 122°18′W (.67 nautical miles NNW BFI) Unknown (150 ft above ground level) flagged and lighted until Fri 30 Oct, 11:59 pm PDT (06:59 UTC) · 9 nm along the route, 4 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 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 6:00 am PDT to 6:00 pm PDT until Fri 1 Oct 2027, 6:00 pm PDT (01:00 UTC) · Mondays Tuesdays Wednesdays Thursdays Fridays Saturdays · 9 nm along the route, 4 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 · 9 nm along the route, 4 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 a minute 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 SEA 6:23 pm PDT (01:23 UTC), at PAE 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:53 pm PDT (01:53 UTC)). At 120 knots the arrival at PAE is before sunrise there (7:25 am PDT (14:25 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 Pacific Northwest
Radar now, the Pacific Northwest · loop National Weather Service
Aviation forecast, clouds and visibility, the Northwest, 3 hours ahead
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
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
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
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-Tacoma International, Seattle Paine Field International.