指定気圧面の観測データ（日ごとの値）
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昭和 2003年9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 | 972.6 | 21 | -16.0 | 76 | 4.5 | 170 |
| 2 | 959.6 | 21 | -8.3 | 77 | 18.7 | 70 |
| 3 | 956.9 | 21 | -7.2 | 80 | 6.0 | 20 |
| 4 | 967.4 | 21 | -10.6 | 60 | 12.4 | 80 |
| 5 | 973.9 | 21 | -15.8 | 53 | 12.2 | 80 |
| 6 | 978.6 | 21 | -17.5 | 51 | 4.1 | 90 |
| 7 | 990.2 | 21 | -22.2 | 58 | 2.8 | 40 |
| 8 | 983.6 | 21 | -23.6 | 49 | 1.0 | 130 |
| 9 | 992.8 | 21 | -18.3 | 63 | 9.4 | 70 |
| 10 | 970.4 | 21 | -14.2 | 56 | 6.6 | 180 |
| 11 | 967.2 | 21 | -9.4 | 73 | 5.6 | 10 |
| 12 | 974.1 | 21 | -12.7 | 67 | 1.6 | 30 |
| 13 | 980.6 | 21 | -15.3 | 75 | 2.7 | 240 |
| 14 | 981.9 | 21 | -15.2 | 71 | 3.2 | 10 |
| 15 | 965.9 | 21 | -14.8 | 78 | 1.8 | 90 |
| 16 | 962.3 | 21 | -10.2 | 91 | 16.1 | 30 |
| 17 | 977.8 | 21 | -11.4 | 84 | 11.5 | 50 |
| 18 | 983.6 | 21 | -14.4 | 65 | 3.9 | 50 |
| 19 | 980.2 | 21 | -10.5 | 90 | 26.7 | 60 |
| 20 | 983.9 | 21 | -9.6 | 77 | 11.4 | 70 |
| 21 | 980.2 | 21 | -9.6 | 45 | 5.1 | 120 |
| 22 | 985.1 | 21 | -12.5 | 71 | 5.5 | 30 |
| 23 | 992.8 | 21 | -14.7 | 59 | 3.2 | 30 |
| 24 | 992.5 | 21 | -18.1 | 55 | 3.0 | 20 |
| 25 | 991.5 | 21 | -16.3 | 54 | 2.8 | 170 |
| 26 | 985.5 | 21 | -18.2 | 62 | 3.6 | 210 |
| 27 | 985.5 | 21 | -18.2 | 47 | 0.5 | 340 |
| 28 | 981.0 | 21 | -17.7 | 53 | 4.5 | 170 |
| 29 | 970.0 | 21 | -17.2 | 70 | 1.1 | 10 |
| 30 | 981.9 | 21 | -9.7 | 51 | 6.0 | 30 |