Seattle-Tacoma International to Luis Munoz Marin International SEA → SJU

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 30 to 330 nm out.
• AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 170 to 480 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 190 to 699 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 310 to 999 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 490 to 670 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). Over the route from 739 to 889 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 799 nm along the route.
• AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 1009 to 1439 nm out.
• AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the route from 2118 to 2218 nm out.

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

• BE9L at 17,000 ft, 49 nm south, 2:42 am PDT (09:42 UTC): light rime icing from 15,000 ft to 17,000 ft, 0 °C, remarks: zdvwc. 699 nm along the route, 49 nm south of the line.
  as filed, and in English

  CPR UA /OV DDY250025/TM 0942/FL170/TP BE9L/TA 00/IC LGT RIME 150-170/RM ZDVWC

  Report

  a routine report filed through CPR

  Where

  25 nm west (250°) of DDY

  Time

  09:42 UTC

  Height

  at 17,000 ft

  Aircraft

  BE9L

  Temperature

  0 °C

  Icing

  light rime from 15,000 ft to 17,000 ft

  Remarks

  zdvwc

• B752 at 33,000 ft, 14 nm southwest, 3:13 am PDT (10:13 UTC): no chop turbulence above 33,000 ft. 2038 nm along the route, 14 nm southwest of the line.
  as filed, and in English

  AMG UA /OV AMG360020/TM 1013/FL330/TP B752/TB NEG CHOP 330

  Report

  a routine report filed through AMG

  Where

  20 nm north (360°) of AMG

  Time

  10:13 UTC

  Height

  at 33,000 ft

  Aircraft

  B752

  Turbulence

  no chop at 33,000 ft

• C182 at 8,000 ft, 33 nm southwest, 3:45 am PDT (10:45 UTC): no turbulence, no icing, clear from 8,000 ft to 60,000 ft. 2068 nm along the route, 33 nm southwest of the line.
  as filed, and in English

  AYS UA /OV AYS090015/TM 1045/FL080/TP C182/SK SKC/TB NEG/IC NEG

  Report

  a routine report filed through AYS

  Where

  15 nm east (090°) of AYS

  Time

  10:45 UTC

  Height

  at 8,000 ft

  Aircraft

  C182

  Sky

  clear

  Turbulence

  none

  Icing

  none

At SJU when you get there the forecast at the estimated arrival, 5:04 am AST (09:04 UTC)

Wind from the east-southeast at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet VFR

The whole forecast for SJU

• From Mon 3:00 am AST (07:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), scattered clouds at 5,000 feet
• From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
• From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
• From Mon 7:00 pm AST (23:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet

The forecast for SEA, the departure

• From Mon 2:00 am PDT (09:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
• From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
• From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
• From Mon 8:00 pm PDT (03:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

• 6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 25 nm from the route, 1969 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
• 6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU

Daylight

Sunset at SEA 6:25 pm PDT (01:25 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 UTC)). At 120 knots the arrival at SJU is before sunrise there (6:17 am AST (10:17 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.