Luis Munoz Marin International to Buffalo Niagara International SJU → BUF

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

• SIGMET 5E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the southwest at 25 knots, until 11:55 pm AST (03:55 UTC). Over the route from 1008 to 1128 nm out.
  as issued

  WSUS31 KKCI 120155
  MKCE WST 120155
  CONVECTIVE SIGMET 5E
  VALID UNTIL 0355Z
  NC SC CSTL WTRS
  FROM 140E ECG-220ESE ECG-180SE ILM-130SSE ILM-60SE ECG-140E ECG
  AREA TS MOV FROM 23025KT. TOPS TO FL450.

• SIGMET 7E: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the west at 15 knots, until 11:55 pm AST (03:55 UTC). Near the route, 1317 nm along the route.
  as issued

  WSUS31 KKCI 120155
  MKCE WST 120155
  CONVECTIVE SIGMET 7E
  VALID UNTIL 0355Z
  PA MD VA DC WV OH
  FROM 10NNE JST-30WNW SBY-40ENE RIC-50SW BKW-20SE APE-10NNE JST
  AREA TS MOV FROM 28015KT. TOPS TO FL330.

• SIGMET 6E: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 11:55 pm AST (03:55 UTC). Over the route from 1347 to 1427 nm out.
  as issued

  WSUS31 KKCI 120155
  MKCE WST 120155
  CONVECTIVE SIGMET 6E
  VALID UNTIL 0355Z
  NY NJ PA DE MD AND DE NJ NY MD CSTL WTRS
  FROM 20WNW SAX-70S HTO-50ESE SBY-30WSW HAR-20WNW SAX
  AREA EMBD TS MOV FROM 22020KT. TOPS TO FL300.

• AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1048 to 1108 nm out.
• AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1228 to 1577 nm out.
• AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 250 nm of the route.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1437 to 1567 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 SJU.

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

Not fetched just now.

At BUF when you get there the forecast at the estimated arrival, 9:36 am EDT (13:36 UTC)

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

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

• 6/4508 CEIBA, PR 24 nm from the route, at the departure end · security · ZSU
• 6/8719 Greenwood, DE, Friday, October 16, 2026 through Saturday, October 17, 2026 UTC 12 nm from the route, 1327 nm along the route · air shows/sports · starts Friday 16 October · ZDC
• 6/8886 Greenwood, DE, Sunday, October 18, 2026 UTC 12 nm from the route, 1327 nm along the route · air shows/sports · starts Sunday 18 October · ZDC
• 4/9383 WASHINGTON, DC., USA 13 nm from the route, 1357 nm along the route · security · ZDC
• 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 14 nm from the route, 1367 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at SJU 6:03 pm AST (22:03 UTC), at BUF 6:37 pm EDT (22:37 UTC) (civil twilight ends 7:06 pm EDT (23:06 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.