Oakland San Francisco Bay Airport to Chicago/Rockford International OAK → RFD

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

• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 150 nm of the route.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 220 to 759 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 240 to 769 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 370 to 869 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the route from 519 to 889 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 669 to 859 nm out.
• AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 739 nm along the route.
• 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, 969 nm along the route.
• 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 999 to 1528 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

• B737 at 18,000 ft, 43 nm south, 12:24 am PDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 819 nm along the route, 43 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 RFD when you get there the forecast at the estimated arrival, 12:03 pm CDT (17:03 UTC)

Wind from the south-southwest at 13 knots, gusting to 23, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for RFD

• 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 23, 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

The forecast for OAK, the departure

• From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 1,500 feet
• From Mon 2:00 am PDT (09:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a few clouds at 1,500 feet
• From Mon 11:00 am PDT (18:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, clear skies

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 OAK 6:34 pm PDT (01:34 UTC), at RFD 6:19 pm CDT (23:19 UTC) (civil twilight ends 6:47 pm CDT (23:47 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.