1999-2000 WINTER WEATHER VERIFICATION STATISTICS
WINTER STORM WATCHES:
| Number of Watches issued: | 101 |
| Watches with an event: | 34 |
| Watches without an event: | 67 |
| Events without a Watch: | 21 |
| Events | 55 |
| Average Lead Time: | 25 hours |
WINTER STORM WARNINGS:
| Number of Warnings issued: | 80 |
| Warnings with an event: | 42 |
| Warnings without an event | 38 |
| Events without a Warning: | 14 |
| Events | 55 |
| Average Lead Time: | 10 hours |
WINTER WEATHER ADVISORIES:
| Number of Advisories issued: | 160 |
| Advisories with an event: | 80 |
| Advisories without an event: | 80 |
| Events without an Advisory: | 6 |
| Events: | 86 |
| Average Lead Time: | 6 hours |
HIGH WIND WATCHES:
| Number of Warnings issued: | 83 |
| Watches with an event: | 15 |
| Watches without an event: | 67 |
| Events without a Watch: | 2 |
| Events: | 17 |
| Average Lead Time: | 9 hours |
HIGH WIND WARNINGS:
| Number of Warnings issued: | 71 |
| Warnings with an event: | 15 |
| Warnings without an event: | 56 |
| Events without a Warning: | 2 |
| Events: | 17 |
| Average Lead Time: | 1 hours |
WIND ADVISORIES:
| Number of Advisories issued: | 186 |
| Advisories with an event: | 123 |
| Advisories without an event: | 63 |
| Events without an Advisory: | 45 |
| Events: | 168 |
| Average Lead Time: | 6 hours |
Abbreviations are as follows: Winter Storm Watch (WSA), Winter Storm Warning (WSW), Winter Weather Advisory (WWA), High Wind Watch (HWA), High Wind Warning (HWW), Wind Advisory (WAD), False Alarm Ratio (FAR), Probability of Detection (POD), Critical Success Index (CSI)
| WSA | WSW | WWA | HWA | HWW | WAD | |||
| FAR (0 is best) |
66% | 48% | 50% | 81% | 79% | 34% | ||
| POD (100% is best) |
64% | 76% | 93% | 88% | 88% | 78% | ||
| CSI (100% is best) |
28% | 45% | 48% | 18% | 21% | 53% |