Cyril E King Airport to St. Louis Lambert International STT → STL

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

• SIGMET E30E: thunderstorms (a convective SIGMET) up to 40,000 ft, moving from the west at 20 knots, until 6:55 am AST (10:55 UTC). Over the route from 927 to 977 nm out.
  as issued

  WSUS31 KKCI 120855
  MKCE WST 120855
  CONVECTIVE SIGMET 30E
  VALID UNTIL 1055Z
  FL GA CSTL WTRS
  FROM 190SE CHS-240SSE ILM-210ENE TRV-150ENE TRV-190SE CHS
  AREA TS MOV FROM 26020KT. TOPS TO FL400.
  REF INTL SIGMET LIMA SERIES.

• AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 28,000 ft to 41,000 ft. Over the route from 1096 to 1226 nm out.
• 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 1365 to 1435 nm out.
• AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 1365 to 1435 nm out.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1415 to 1475 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, fog). Over the route from 1425 to 1624 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 STT.

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

No pilot reports within 50 nautical miles of the line in the last three hours.

At STL when you get there the forecast at the estimated arrival, 8:50 pm CDT (01:50 UTC)

Wind from the south-southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for STL

• From Mon 4:00 am CDT (09:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
• From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
• From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for STT, the departure

• From Mon 2:00 am AST (06:00 UTC): wind from the east at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
• From Mon 9:00 am AST (13:00 UTC): wind from the east-southeast at 10 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,500 feet
• From Mon 7:00 pm AST (23:00 UTC): wind from the east at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet

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

• 6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 20 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
• 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 10 nm from the route, 1574 nm along the route · security · until 1 August · ZME

Daylight

Sunset at STT 5:59 pm AST (21:59 UTC), at STL 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:54 pm CDT (23:54 UTC)). At 120 knots the arrival at STL is after sunset there (6:27 pm CDT (23:27 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.