| Hint | Answer | % Correct |
|---|---|---|
| Towered field reports 55 minutes past the hour | ATIS (Automated Terminal Information Service) | 71%
|
| Reports by the hour | ASOS (Automated Surface Observing System) | 43%
|
| Reports by the minute | AWOS (Automated Weather Observing System) | 43%
|
| extensive mountain obscuration | 43%
| |
| surface hail ≥ 3/4" diameter | 43%
| |
| Airmet Tango | moderate turbulence | 29%
|
| nonconvective low-level wind shear | 29%
| |
| the only source of directly observed weather information | Pilot Weather Report (PIREP) | 29%
|
| Dust or sand storm lowering surface visibility ≤ 3 SM | 14%
| |
| Airmet Sierra | IFR conditions | 14%
|
| Airmet Zulu | moderate icing | 14%
|
| severe, extreme, or clear air turbulence | 14%
| |
| Sigmet (WS) Weather not produced by thunderstorms | severe icing | 14%
|
| Convective Sigment (WST) reports: | Severe thunderstorms | 14%
|
| volcanic ash | 14%
| |
| freezing level heights | 0%
| |
| with these characteristics | surface winds ≥ 50 kts | 0%
|
| sustained surface winds ≥ 30 kts | 0%
| |
| tornadoes | 0%
|