Greenville Spartanburg International to Sacramento International GSP → SMF

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

• SIGMET 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 2:55 am EDT (06:55 UTC). Over the route from 1105 to 1135 nm out.
  as issued

  WSUS32 KKCI 120455
  MKCC WST 120455
  CONVECTIVE SIGMET 7C
  VALID UNTIL 0655Z
  TX OK CO NM
  FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB
  AREA TS MOV FROM 22040KT. TOPS TO FL340.

• SIGMET W14W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Over the route from 1623 to 1723 nm out.
  as issued

  WSUS33 KKCI 120455
  MKCW WST 120455
  CONVECTIVE SIGMET 14W
  VALID UNTIL 0655Z
  NV
  FROM 40NW BVL-20WNW ELY-20SSE OAL-40WNW OAL-50NE BAM-40NW BVL
  AREA TS MOV FROM 24020KT. TOPS TO FL280.

• AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the first 60 nm of the route.
• AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the route from 10 to 100 nm out.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 139 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 50 to 259 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 568 to 1016 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1016 to 1613 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 1036 to 1434 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 1105 to 1285 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1285 to 1693 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1324 to 1693 nm out.
• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 80 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 GSP.

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, 4:17 pm PDT (23:17 UTC)

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

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

• 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 18 nm from the route, 239 nm along the route · security · until 1 August · ZME
• 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 7 nm from the route, 1135 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
• 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 16 nm from the route, at the destination end · security · until 1 November · ZOA

Daylight

Sunset at GSP 6:58 pm EDT (22:58 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.