 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
The hnp ASOS at times is not accurate and at the time of this event was reporting 9SM; 300 ft broken; 1000 ft sct when infact the weather was VMC.
| Attributes | |
| ACN | 834317 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | HPN.Airport |
| State Reference | NY |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Falcon 20FJF/20C/20D/20E/20F |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 60 Flight Crew Total 7050 Flight Crew Type 575 |
| Events | |
| Anomaly | ATC Issue All Types Inflight Event / Encounter Weather / Turbulence |
Narrative:
It was night and the tower at hpn was closed. The ASOS was reporting visibility of 9 SM and 300 ft broken with and scattered at 1000 ft. The actual weather conditions were visibility greater than 10 SM and ceiling more than 3000 ft. On downwind for the ILS we were 12 miles from the airport at 3000 ft when we saw the airport. We stayed on the ILS; but the whole time on the approach we were in VFR conditions. On short final we canceled IFR and landed. We could have waited and canceled on the ground. Most of the time the ASOS/AWOS weather reports are pretty accurate; but other times they are not. Sometimes they report the weather much better than it actually is; or much worse than actual conditions. I think ASOS/AWOS is a great weather tool for the pilot; but I think it could be improved upon.
Original NASA ASRS Text
Title: The HNP ASOS at times is not accurate and at the time of this event was reporting 9SM; 300 FT BKN; 1000 FT SCT when infact the weather was VMC.
Narrative: It was night and the Tower at HPN was closed. The ASOS was reporting visibility of 9 SM and 300 FT broken with and scattered at 1000 FT. The actual weather conditions were visibility greater than 10 SM and ceiling more than 3000 FT. On downwind for the ILS we were 12 miles from the airport at 3000 FT when we saw the airport. We stayed on the ILS; but the whole time on the approach we were in VFR conditions. On short final we canceled IFR and landed. We could have waited and canceled on the ground. Most of the time the ASOS/AWOS weather reports are pretty accurate; but other times they are not. Sometimes they report the weather much better than it actually is; or much worse than actual conditions. I think ASOS/AWOS is a great weather tool for the pilot; but I think it could be improved upon.
Data retrieved from NASA's ASRS site as of April 2012 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.