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Controller report that ASOS WX reporting is inaccurate. Controllers are required to correct and-or augment the WX.
| Attributes | |
| ACN | 333192 |
| Time | |
| Date | 199604 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : oma |
| State Reference | NE |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dawn |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : flight data |
| Qualification | controller : radar |
| Experience | flight time total : 540 |
| ASRS Report | 333192 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
ASOS reported WX throughout the time period as clear blo 120. Visibility was being reported as 10+ mi from XA00 - XC00 by the ASOS. Controllers diverted their attention from other duties to correct/augment the WX. The equipment was not experiencing mechanical problems but was inaccurate. Actual WX was 8-9 overcast and visibility 2 1/2-4 F throughout the period. VOR approachs to a 680 ft MDA were in progress. Pilots should not rely on non-augmented ASOS stations for accurate WX reports. Pilots can expect delays while controllers augment WX. We were fortunate to have adequate staffing for the morning push.
Original NASA ASRS Text
Title: CTLR RPT THAT ASOS WX RPTING IS INACCURATE. CTLRS ARE REQUIRED TO CORRECT AND-OR AUGMENT THE WX.
Narrative: ASOS RPTED WX THROUGHOUT THE TIME PERIOD AS CLR BLO 120. VISIBILITY WAS BEING RPTED AS 10+ MI FROM XA00 - XC00 BY THE ASOS. CTLRS DIVERTED THEIR ATTN FROM OTHER DUTIES TO CORRECT/AUGMENT THE WX. THE EQUIP WAS NOT EXPERIENCING MECHANICAL PROBS BUT WAS INACCURATE. ACTUAL WX WAS 8-9 OVCST AND VISIBILITY 2 1/2-4 F THROUGHOUT THE PERIOD. VOR APCHS TO A 680 FT MDA WERE IN PROGRESS. PLTS SHOULD NOT RELY ON NON-AUGMENTED ASOS STATIONS FOR ACCURATE WX RPTS. PLTS CAN EXPECT DELAYS WHILE CTLRS AUGMENT WX. WE WERE FORTUNATE TO HAVE ADEQUATE STAFFING FOR THE MORNING PUSH.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.