Oakland San Francisco Bay Airport to Chicago Midway International OAK → MDW

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

• SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 210 to 350 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.

• SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 809 to 829 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.

• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 40 nm of the route.
• AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 120 to 280 nm out.
• AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 190 to 679 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 210 to 909 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 250 to 679 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 290 to 889 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). Over the route from 490 to 590 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 580 to 799 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 610 to 699 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 1179 to 1389 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 OAK.

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

Not fetched just now.

At MDW when you get there the forecast at the estimated arrival, 7:05 am CDT (12:05 UTC)

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

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

• 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at OAK 6:35 pm PDT (01:35 UTC), at MDW 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:42 pm CDT (23:42 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.