General Edward Lawrence Logan International to Sacramento International BOS → SMF

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

• SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1467 to 1576 nm out.
  as issued

  WSUS33 KKCI 120155
  MKCW WST 120155
  CONVECTIVE SIGMET 8W
  VALID UNTIL 0355Z
  CO MT WY
  FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR
  AREA TS MOV FROM 22040KT. TOPS TO FL350.

• SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1936 to 2055 nm out.
  as issued

  WSUS33 KKCI 120155
  MKCW WST 120155
  CONVECTIVE SIGMET 10W
  VALID UNTIL 0355Z
  NV
  FROM 70SW TWF-40NNW BVL-40SW ELY-30ESE OAL-40WNW OAL-70SW TWF
  AREA TS MOV FROM 23020KT. TOPS TO FL300.

• 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 first 259 nm of the route.
• AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the first 249 nm of the route.
• AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 349 nm of the route.
• AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 210 nm of the route.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 80 to 239 nm out.
• AIRMET TANGO 3W: 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 948 to 1028 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). Near the route, 1347 nm along the route.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1387 to 2125 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1467 to 1826 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 1517 to 1746 nm out.
• AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1606 to 2145 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1606 to 2055 nm out.
• AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1626 to 1686 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, 1826 nm along the route.
• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 30 nm of 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 BOS.

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

Not fetched just now.

At SMF when you get there the forecast at the estimated arrival, 2:53 pm PDT (21:53 UTC)

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

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

• 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 17 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
• 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 12 nm from the route, at the destination end · security · until 1 November · ZOA
• 6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 6 nm from the route, at the destination end · air shows/sports · ended 11 October · ZOA

Daylight

Sunset at BOS 6:07 pm EDT (22:07 UTC), at SMF 6:32 pm PDT (01:32 UTC) (civil twilight ends 6:59 pm PDT (01:59 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.