指定気圧面の観測データ（日ごとの値）
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八丈島 2001年11月9時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1005.2 | 153 | 20.5 | 58 | 0.9 | 230 |
| 2 | 1002.1 | 153 | 20.6 | 74 | 3.3 | 250 |
| 3 | 1000.4 | 153 | 18.8 | 87 | 1.7 | 10 |
| 4 | 998.9 | 153 | 15.6 | 93 | 2.4 | 10 |
| 5 | 1008.8 | 153 | 18.8 | 63 | 3.5 | 90 |
| 6 | 989.5 | 153 | 23.1 | 94 | 8.0 | 220 |
| 7 | 1002.8 | 153 | 15.8 | 68 | 3.9 | 50 |
| 8 | 1004.6 | 153 | 17.5 | 67 | 6.5 | 60 |
| 9 | 996.0 | 153 | 18.1 | 96 | 4.1 | 50 |
| 10 | 992.4 | 153 | 14.4 | 87 | 6.3 | 10 |
| 11 | 998.9 | 153 | 15.0 | 83 | 3.1 | 40 |
| 12 | 989.7 | 153 | 14.2 | 93 | 3.1 | 10 |
| 13 | 995.0 | 153 | 15.9 | 63 | 2.2 | 240 |
| 14 | 994.4 | 153 | 15.9 | 74 | 2.4 | 260 |
| 15 | 999.1 | 153 | 16.3 | 54 | 1.5 | 240 |
| 16 | 998.6 | 153 | 14.7 | 67 | 2.4 | 280 |
| 17 | 1000.3 | 153 | 15.1 | 58 | 3.4 | 260 |
| 18 | 998.0 | 153 | 13.8 | 86 | 3.2 | 20 |
| 19 | 1000.8 | 153 | 15.9 | 53 | 1.1 | 210 |
| 20 | 1003.8 | 153 | 16.8 | 70 | 2.1 | 40 |
| 21 | 1003.0 | 153 | 16.1 | 74 | 1.0 | 30 |
| 22 | 1002.9 | 153 | 15.3 | 67 | 1.0 | 40 |
| 23 | 1002.9 | 153 | 18.6 | 63 | 1.6 | 30 |
| 24 | 999.6 | 153 | 16.9 | 70 | 2.6 | 30 |
| 25 | 993.7 | 153 | 18.0 | 77 | 0.9 | 200 |
| 26 | 992.4 | 153 | 16.6 | 53 | 4.1 | 320 |
| 27 | 997.2 | 153 | 12.4 | 48 | 4.4 | 240 |
| 28 | 1001.4 | 153 | 12.4 | 52 | 3.5 | 250 |
| 29 | 1001.0 | 153 | 15.3 | 57 | 3.7 | 250 |
| 30 | 989.6 | 153 | 18.2 | 84 | 7.7 | 220 |