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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Agency Alert

Welcome to the new IDOT home page.  Our location has changed, please update any bookmarks.

Automated Surface Observation System (ASOS) Facilities

Current as of March 21, 2008

Location ID FREQ PHONE # STATUS
Location ID FREQ PHONE # STATUS

Note: ASOS facilities are co-owned by Federal Aviation Administration (FAA) and the National Weather Service (NWS) and maintained by the FAA.
* - Automated Weather Sensor System.
(ATIS) – ATIS Frequency
(VHF) – VHF Discreet Frequency
(VOR) – VOR Frequency

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