NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.

Station CNII2 - Search and Rescue Data

Northerly Isle, IL
41.856 N 87.609 W (41°51'21" N 87°36'34" W)


Average surface winds - six hour block.

Date (UTC) Average
Wind Dir
(True)
Average
Wind Spd
(Knots)
Wind
Obs
Average
Seas
(Feet)
Wave
Obs
Air Temp.
(Degrees F.)
Air Temp.
Obs
Water Temp.
(Degrees F.)
Water Temp.
Obs
2025-04-04 0000Z287618-04718-0
2025-04-03 1800Z256924-04824-0
2025-04-03 1200Z2441024-05024-0
2025-04-03 0600Z251824-05824-0
2025-04-03 0000Z1941124-06324-0
2025-04-02 1800Z116624-04524-0
2025-04-02 1200Z1111724-04124-0
2025-04-02 0600Z1011724-04124-0
2025-04-02 0000Z711324-04124-0
2025-04-01 1800Z601124-03624-0
2025-04-01 1200Z611024-03524-0
2025-04-01 0600Z301224-03624-0
2025-04-01 0000Z29922-03722-0
2025-03-31 1800Z357824-03724-0
2025-03-31 1200Z3331024-03624-0
2025-03-31 0600Z276824-04324-0
2025-03-31 0000Z273724-05421-0
2025-03-30 1800Z1961324-06921-0
2025-03-30 1200Z188624-05324-0
2025-03-30 0600Z5524-04124-0
2025-03-30 0000Z4424-04717-0
2025-03-29 1800Z1921324-06424-0
2025-03-29 1200Z204824-06324-0
2025-03-29 0600Z2211024-06824-0
2025-03-29 0000Z2111324-07524-0
2025-03-28 1800Z212524-05821-0
2025-03-28 1200Z140124-04724-0
2025-03-28 0600Z149224-04424-0
2025-03-28 0000Z170524-04924-0
2025-03-27 1800Z204624-05224-0
2025-03-27 1200Z225424-04624-0
2025-03-27 0600Z189424-04324-0
2025-03-27 0000Z81424-03924-0
2025-03-26 1800Z79524-03924-0
2025-03-26 1200Z28124-03624-0
2025-03-26 0600Z131424-03524-0
2025-03-26 0000Z67524-03724-0
2025-03-25 1800Z36723-04023-0
2025-03-25 1200Z263324-03724-0
2025-03-25 0600Z92424-03724-0
2025-03-25 0000Z2731124-04724-0
2025-03-24 1800Z2751224-04024-0
2025-03-24 1200Z2761124-03524-0
2025-03-24 0600Z2681324-03924-0
2025-03-24 0000Z2281024-04424-0
2025-03-23 1800Z1471424-04424-0
2025-03-23 1200Z1441224-03824-0
2025-03-23 0600Z129824-03624-0
2025-03-23 0000Z82724-03324-0
2025-03-22 1800Z38924-03524-0
2025-03-22 1200Z3351024-03824-0
2025-03-22 0600Z279924-05024-0
2025-03-22 0000Z1911624-05524-0
2025-03-21 1800Z1911924-05024-0
2025-03-21 1200Z196924-03624-0
2025-03-21 0600Z190424-03424-0
2025-03-21 0000Z58524-03624-0
2025-03-20 1800Z320824-03724-0
2025-03-20 1200Z2971024-03224-0
2025-03-20 0600Z3451623-03623-0
2025-03-20 0000Z3391024-03924-0
2025-03-19 1800Z3561124-04024-0
2025-03-19 1200Z21224-03924-0
2025-03-19 0600Z355824-04123-0
2025-03-19 0000Z184724-06918-0
2025-03-18 1800Z173724-05724-0
2025-03-18 1200Z214724-04724-0
2025-03-18 0600Z1941324-04724-0
2025-03-18 0000Z1801523-05023-0
2025-03-17 1800Z1681424-04424-0
2025-03-17 1200Z235424-03324-0
2025-03-17 0600Z260624-03324-0
2025-03-17 0000Z269524-03424-0
2025-03-16 1800Z291924-03324-0
2025-03-16 1200Z307824-03624-0
2025-03-16 0600Z325624-04224-0
2025-03-16 0000Z249824-05424-0
2025-03-15 1800Z1931824-06324-0
2025-03-15 1200Z1811424-05824-0
2025-03-15 0600Z163924-05924-0
2025-03-15 0000Z1531524-06824-0
2025-03-14 1800Z1591424-06624-0
2025-03-14 1200Z112124-04424-0
2025-03-14 0600Z114124-04324-0
2025-03-14 0000Z1524-04324-0
2025-03-13 1800Z14524-04224-0
2025-03-13 1200Z20224-03724-0
2025-03-13 0600Z2524-03724-0
2025-03-13 0000Z7824-03924-0
2025-03-12 1800Z17824-04024-0
2025-03-12 1200Z63924-03724-0
2025-03-12 0600Z35624-03724-0
2025-03-12 0000Z3531424-03624-0
2025-03-11 1800Z3581624-04024-0
2025-03-11 1200Z305624-05124-0
2025-03-11 0600Z208824-05824-0
2025-03-11 0000Z2011024-06424-0
2025-03-10 1800Z243924-06024-0
2025-03-10 1200Z246724-04524-0
2025-03-10 0600Z247524-05024-0
2025-03-10 0000Z236724-05524-0
2025-03-09 1800Z235724-05124-0
2025-03-09 1200Z2601024-03824-0
2025-03-09 0600Z263724-04224-0
2025-03-09 0000Z250923-04723-0
2025-03-08 1800Z206224-04024-0
2025-03-08 1200Z15724-03224-0
2025-03-08 0600Z292824-03424-0
2025-03-08 0000Z56524-03324-0
2025-03-07 1800Z79424-03424-0
2025-03-07 1200Z241424-03624-0
2025-03-07 0600Z261524-03624-0
2025-03-07 0000Z268724-03924-0
2025-03-06 1800Z283924-03524-0
2025-03-06 1200Z2851324-02924-0
2025-03-06 0600Z2951324-03124-0
2025-03-06 0000Z2991424-03324-0
2025-03-05 1800Z232823-04723-0
2025-03-05 1200Z189924-04924-0
2025-03-05 0600Z112324-04124-0
2025-03-05 0000Z18324-04124-0
2025-03-04 1800Z1891524-04524-0
2025-03-04 1200Z1961124-04624-0
2025-03-04 0600Z1911124-04624-0
2025-03-04 0000Z173924-04324-0
2025-03-03 1800Z1881224-03924-0
2025-03-03 1200Z191824-03324-0
2025-03-03 0600Z182324-03224-0
2025-03-03 0000Z103424-03024-0
2025-03-02 1800Z72424-02824-0
2025-03-02 1200Z259524-02224-0
2025-03-02 0600Z234424-02424-0
2025-03-02 0000Z12624-02424-0
2025-03-01 1800Z3601124-02324-0
2025-03-01 1200Z3371424-02624-0
2025-03-01 0600Z3091224-03524-0
2025-03-01 0000Z2731423-05023-0
2025-02-28 1800Z2351124-05224-0
2025-02-28 1200Z192924-03924-0
2025-02-28 0600Z244424-03924-0
2025-02-28 0000Z294824-04424-0
2025-02-27 1800Z2911024-04524-0
2025-02-27 1200Z2601024-03724-0
2025-02-27 0600Z296524-03824-0
2025-02-27 0000Z5324-03824-0
2025-02-26 1800Z93324-03724-0
2025-02-26 1200Z83324-03624-0
2025-02-26 0600Z155124-03524-0
2025-02-26 0000Z151324-03824-0
2025-02-25 1800Z14424-04424-0
2025-02-25 1200Z267524-04424-0
2025-02-25 0600Z176324-04424-0
2025-02-25 0000Z241624-05224-0
2025-02-24 1800Z237724-04824-0
2025-02-24 1200Z197824-03924-0
2025-02-24 0600Z203824-04024-0
2025-02-24 0000Z177524-03924-0
2025-02-23 1800Z194824-03524-0
2025-02-23 1200Z212524-02724-0
2025-02-23 0600Z215524-03024-0
2025-02-23 0000Z238624-03424-0
2025-02-22 1800Z223924-02824-0
2025-02-22 1200Z232724-01924-0
2025-02-22 0600Z231624-02324-0
2025-02-22 0000Z235624-02724-0
2025-02-21 1800Z249623-02623-0
2025-02-21 1200Z260724-01624-0
2025-02-21 0600Z2731024-01824-0
2025-02-21 0000Z279824-02324-0
2025-02-20 1800Z283824-02124-0
2025-02-20 1200Z275924-0824-0
2025-02-20 0600Z277924-01024-0
2025-02-20 0000Z290724-01424-0
2025-02-19 1800Z279724-01524-0
2025-02-19 1200Z272924-0824-0
2025-02-19 0600Z297724-0824-0
2025-02-19 0000Z304624-01224-0
2025-02-18 1800Z333424-01024-0
2025-02-18 1200Z278924-0-024-0
2025-02-18 0600Z2951024-0324-0
2025-02-18 0000Z279812-0712-0

The six-hour averages are calculated as follows:

  • The 0000Z average uses data from 2100Z to 0259Z.
  • The 0600Z average uses data from 0300Z to 0859Z.
  • The 1200Z average uses data from 0900Z to 1459Z.
  • The 1800Z average uses data from 1500Z to 2059Z.

Display CNII2 station page