指定気圧面の観測データ（日ごとの値）
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昭和 2000年8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 | 988.0 | 21 | -28.3 | 73 | 2.3 | 290 |
| 2 | 996.0 | 21 | -26.1 | 75 | 1.0 | 130 |
| 3 | 995.1 | 21 | -23.9 | 65 | 1.8 | 320 |
| 4 | 984.9 | 21 | -20.7 | 56 | 5.5 | 40 |
| 5 | 978.7 | 21 | -12.4 | 82 | 2.8 | 80 |
| 6 | 983.6 | 21 | -16.1 | 77 | 2.2 | 60 |
| 7 | 976.7 | 21 | -15.4 | 44 | 1.9 | 100 |
| 8 | 992.6 | 21 | -17.1 | 53 | 8.1 | 40 |
| 9 | 997.0 | 21 | -25.4 | 71 | 0.4 | 190 |
| 10 | 992.8 | 21 | -11.9 | 66 | 12.3 | 30 |
| 11 | 983.1 | 21 | -8.6 | 88 | 14.3 | 40 |
| 12 | 970.4 | 21 | -6.4 | 91 | 15.8 | 50 |
| 13 | 970.9 | 21 | -6.8 | 90 | 0.9 | 30 |
| 14 | 983.8 | 21 | -12.1 | 60 | 5.9 | 40 |
| 15 | 987.2 | 21 | -18.7 | 54 | 4.8 | 30 |
| 16 | 986.0 | 21 | -22.5 | 54 | 3.9 | 160 |
| 17 | 979.2 | 21 | -23.5 | 48 | 3.6 | 170 |
| 18 | 970.1 | 21 | -17.1 | 43 | 4.7 | 140 |
| 19 | 983.3 | 21 | -20.6 | 49 | 1.4 | 180 |
| 20 | 987.5 | 21 | -26.8 | 61 | 2.4 | 340 |
| 21 | 990.1 | 21 | -23.6 | 57 | 1.0 | 40 |
| 22 | 985.2 | 21 | -22.0 | 65 | 1.7 | 340 |
| 23 | 982.7 | 21 | -14.2 | 85 | 14.6 | 40 |
| 24 | 998.6 | 21 | -21.2 | 74 | 7.2 | 190 |
| 25 | 985.5 | 21 | -23.3 | 74 | 2.2 | 180 |
| 26 | 982.9 | 21 | -13.2 | 86 | 15.4 | 30 |
| 27 | 967.0 | 21 | -10.5 | 88 | 22.0 | 30 |
| 28 | 975.0 | 21 | -13.5 | 55 | 2.6 | 20 |
| 29 | 981.9 | 21 | -12.7 | 51 | 1.6 | 130 |
| 30 | 982.1 | 21 | -12.2 | 59 | 0.6 | 240 |
| 31 | 990.6 | 21 | -8.8 | 62 | 14.6 | 80 |