指定気圧面の観測データ（日ごとの値）
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昭和 2009年3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 | 983.2 | 18 | -1.4 | 63 | 2.1 | 280 |
| 2 | 984.0 | 18 | -4.4 | 60 | 8.2 | 40 |
| 3 | 982.8 | 18 | -2.2 | 88 | 6.2 | 190 |
| 4 | 960.4 | 18 | -1.2 | 94 | 16.4 | 50 |
| 5 | 978.8 | 18 | -1.8 | 67 | 4.8 | 20 |
| 6 | 983.6 | 18 | -3.8 | 56 | 2.2 | 10 |
| 7 | 995.0 | 18 | -6.4 | 77 | 3.6 | 330 |
| 8 | /// | /// | /// | /// | /// | /// |
| 9 | 978.8 | 18 | -3.5 | 94 | 17.4 | 70 |
| 10 | 978.8 | 18 | -4.4 | 59 | 7.6 | 70 |
| 11 | 967.9 | 18 | -4.0 | 50 | 1.5 | 10 |
| 12 | 976.7 | 18 | -7.3 | 72 | 1.3 | 280 |
| 13 | 975.0 | 18 | -3.9 | 88 | 13.5 | 50 |
| 14 | 953.2 | 18 | -1.7 | 92 | 24.3 | 70 |
| 15 | 972.4 | 18 | -4.0 | 66 | 11.8 | 80 |
| 16 | 981.0 | 18 | -8.4 | 62 | 1.4 | 280 |
| 17 | 983.7 | 18 | -6.7 | 65 | 16.8 | 50 |
| 18 | 981.6 | 18 | -3.6 | 95 | 20.8 | 50 |
| 19 | 983.5 | 18 | -2.0 | 74 | 2.8 | 140 |
| 20 | 982.5 | 18 | -3.1 | 64 | 6.8 | 70 |
| 21 | 982.2 | 18 | -3.0 | 56 | 2.5 | 30 |
| 22 | 984.2 | 18 | -5.7 | 60 | 2.1 | 30 |
| 23 | 990.6 | 18 | -8.3 | 67 | 1.8 | 210 |
| 24 | 991.1 | 18 | -15.3 | 69 | 0.9 | 60 |
| 25 | 991.8 | 18 | -11.9 | 59 | 6.6 | 60 |
| 26 | 986.1 | 18 | -4.5 | 85 | 15.1 | 40 |
| 27 | 985.5 | 18 | -5.5 | 58 | 0.7 | 70 |
| 28 | 991.1 | 18 | -6.3 | 79 | 2.4 | 170 |
| 29 | 979.8 | 18 | -8.1 | 61 | 4.7 | 190 |
| 30 | 982.0 | 18 | -2.8 | 67 | 6.9 | 50 |
| 31 | 982.9 | 18 | -5.7 | 70 | 2.3 | 160 |