指定気圧面の観測データ（日ごとの値）
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昭和 1997年10月21時（現地時間 15時） 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 982.1 | 21 | -10.6 | 76 | 14.2 | 40 |
| 2 | 983.7 | 21 | -11.8 | 86 | 9.6 | 30 |
| 3 | 985.2 | 21 | -11.3 | 76 | 2.4 | 180 |
| 4 | 982.4 | 21 | -8.3 | 86 | 4.5 | 180 |
| 5 | 982.3 | 21 | -10.2 | 64 | 2.8 | 20 |
| 6 | 986.8 | 21 | -13.1 | 64 | 4.6 | 170 |
| 7 | 977.3 | 21 | -3.3 | 54 | 1.9 | 20 |
| 8 | 981.1 | 21 | -5.3 | 63 | 9.5 | 50 |
| 9 | 986.6 | 21 | -5.9 | 61 | 4.6 | 40 |
| 10 | 993.3 | 21 | -8.6 | 61 | 12.8 | 50 |
| 11 | 992.2 | 21 | -11.4 | 76 | 3.3 | 170 |
| 12 | 986.8 | 21 | -11.4 | 54 | 2.5 | 50 |
| 13 | 982.8 | 21 | -9.8 | 43 | 2.1 | 50 |
| 14 | 988.8 | 21 | -11.5 | 44 | 3.0 | 180 |
| 15 | 990.3 | 21 | -15.3 | 56 | 7.9 | 30 |
| 16 | 986.2 | 21 | -14.9 | 44 | 3.8 | 200 |
| 17 | 993.1 | 21 | -16.3 | 30 | 0.5 | 290 |
| 18 | 987.1 | 21 | -17.9 | 50 | 4.2 | 40 |
| 19 | 983.0 | 21 | -17.5 | 43 | 1.9 | 160 |
| 20 | 975.1 | 21 | -17.5 | 29 | 0.0 | - |
| 21 | 978.3 | 21 | -18.1 | 57 | 1.5 | 90 |
| 22 | 988.8 | 21 | -16.3 | 44 | 4.6 | 180 |
| 23 | 976.9 | 21 | -14.5 | 42 | 1.6 | 40 |
| 24 | 969.5 | 21 | -10.8 | 61 | 3.3 | 150 |
| 25 | 971.9 | 21 | -4.9 | 61 | 0.8 | 310 |
| 26 | 975.2 | 21 | -6.6 | 54 | 1.0 | 30 |
| 27 | 979.5 | 21 | -7.2 | 58 | 1.1 | 350 |
| 28 | 982.0 | 21 | -9.0 | 69 | 3.5 | 20 |
| 29 | 963.0 | 21 | -8.9 | 88 | 12.3 | 30 |
| 30 | 964.5 | 21 | -9.6 | 93 | 16.9 | 40 |
| 31 | 973.0 | 21 | -9.7 | 93 | 3.7 | 320 |