Chicago Midway International to San Francisco International MDW → SFO

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

• SIGMET W17W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 4:55 am CDT (09:55 UTC). Over the route from 1178 to 1248 nm out.
  as issued

  WSUS33 KKCI 120755
  MKCW WST 120755
  CONVECTIVE SIGMET 17W
  VALID UNTIL 0955Z
  AZ UT NV
  FROM 20WNW BVL-30N BCE-60SSW BCE-50NNE LAS-60NNW ELY-20WNW BVL
  AREA TS MOV FROM 24020KT. TOPS TO FL300.

• 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 90 to 609 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the route from 719 to 1088 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 729 to 1238 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 749 to 929 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 829 to 1358 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 849 to 1378 nm out.
• AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 859 nm along the route.
• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 160 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 MDW.

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

• B737 at 18,000 ft, 30 nm south, 2:24 am CDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 789 nm along the route, 30 nm south of the line.
  as filed, and in English

  DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130

  Report

  a routine report filed through DEN

  Where

  50 nm northwest (330°) of DEN

  Time

  07:24 UTC

  Height

  at 18,000 ft

  Aircraft

  B737

  Turbulence

  moderate

  Remarks

  FL180-130

At SFO when you get there the forecast at the estimated arrival, 5:16 pm PDT (00:16 UTC)

Wind from the west at 12 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SFO

• From Mon 1:00 am PDT (08:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet
• From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, clear skies
• From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies

The forecast for MDW, the departure

• From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
• From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
• From Mon 6:00 pm CDT (23:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at MDW 6:14 pm CDT (23:14 UTC), at SFO 6:35 pm PDT (01:35 UTC) (civil twilight ends 7:01 pm PDT (02:01 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.