指定気圧面の観測データ（日ごとの値）
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昭和 2011年4月9時（現地時間 3時） 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 992.0 | 18 | -11.0 | 49 | 0.3 | 110 |
| 2 | 998.9 | 18 | -11.1 | 70 | 1.7 | 130 |
| 3 | 991.0 | 18 | -7.9 | 74 | 11.3 | 50 |
| 4 | 974.4 | 18 | -2.3 | 96 | 20.3 | 50 |
| 5 | 994.3 | 18 | -3.4 | 94 | 14.8 | 50 |
| 6 | 996.3 | 18 | -9.9 | 68 | 2.5 | 160 |
| 7 | 976.4 | 18 | -6.2 | 68 | 4.6 | 40 |
| 8 | 976.6 | 18 | -6.8 | 70 | 7.9 | 70 |
| 9 | 981.9 | 18 | -10.1 | 64 | 2.2 | 80 |
| 10 | 990.1 | 18 | -14.5 | 59 | 2.1 | 110 |
| 11 | 992.4 | 18 | -20.1 | 76 | 1.2 | 150 |
| 12 | 981.8 | 18 | -13.3 | 57 | 3.3 | 340 |
| 13 | /// | /// | /// | /// | /// | /// |
| 14 | 1000.6 | 18 | -5.0 | 94 | 14.6 | 40 |
| 15 | 985.8 | 18 | -4.3 | 93 | 2.5 | 10 |
| 16 | 982.3 | 18 | -5.3 | 82 | 10.6 | 50 |
| 17 | 990.2 | 18 | -9.1 | 88 | 14.2 | 40 |
| 18 | 983.2 | 18 | -7.2 | 75 | 9.3 | 50 |
| 19 | 980.1 | 18 | -13.6 | 87 | 4.0 | 170 |
| 20 | 978.6 | 18 | -18.5 | 74 | 6.4 | 170 |
| 21 | 986.7 | 18 | -17.0 | 63 | 4.2 | 170 |
| 22 | 994.0 | 18 | -22.8 | 78 | 2.8 | 270 |
| 23 | 993.3 | 18 | -17.7 | 61 | 3.2 | 180 |
| 24 | 979.5 | 18 | -4.2 | 93 | 25.0 | 60 |
| 25 | 989.9 | 18 | -4.0 | 95 | 14.7 | 70 |
| 26 | 980.6 | 18 | -8.5 | 91 | 3.6 | 40 |
| 27 | 993.1 | 18 | -9.6 | 86 | 3.2 | 160 |
| 28 | 995.7 | 18 | -19.8 | 81 | 6.3 | 200 |
| 29 | 998.4 | 18 | -16.2 | 65 | 2.4 | 260 |
| 30 | 994.3 | 18 | -10.2 | 73 | 7.3 | 40 |