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Reporter alleges that ASOS was inaccurate in its visibility reports for 3 hours causing increased workload. NWS personnel had to supplement visibility values during this time period.
| Attributes | |
| ACN | 343772 |
| Time | |
| Date | 199608 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cae |
| State Reference | SC |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller non radar : 13 controller radar : 8 |
| ASRS Report | 343772 |
| Person 2 | |
| Affiliation | government other |
| Function | observation : observer |
| Qualification | other other : other |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
Narrative:
Came into work at XA00 local to work tower position. The ASOS was indicating 9 SM visibility. Unfortunately, there was only 1/2 mi visibility. We put this on the ASOS which changes the rptable visibility. The WX service had to be called to get an obscuration to go with the new visibility. The ASOS did not keep up until about 3 hours later. Each time WX (NWS) had to be asked to add an obscuration.
Original NASA ASRS Text
Title: RPTR ALLEGES THAT ASOS WAS INACCURATE IN ITS VISIBILITY RPTS FOR 3 HRS CAUSING INCREASED WORKLOAD. NWS PERSONNEL HAD TO SUPPLEMENT VISIBILITY VALUES DURING THIS TIME PERIOD.
Narrative: CAME INTO WORK AT XA00 LCL TO WORK TWR POS. THE ASOS WAS INDICATING 9 SM VISIBILITY. UNFORTUNATELY, THERE WAS ONLY 1/2 MI VISIBILITY. WE PUT THIS ON THE ASOS WHICH CHANGES THE RPTABLE VISIBILITY. THE WX SVC HAD TO BE CALLED TO GET AN OBSCURATION TO GO WITH THE NEW VISIBILITY. THE ASOS DID NOT KEEP UP UNTIL ABOUT 3 HRS LATER. EACH TIME WX (NWS) HAD TO BE ASKED TO ADD AN OBSCURATION.
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.