指定気圧面の観測データ（日ごとの値）
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昭和 2018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 | 994.9 | 18 | -6.1 | 93 | 14.6 | 40 |
| 2 | 988.5 | 18 | -6.1 | 62 | 12.7 | 80 |
| 3 | 996.2 | 18 | -4.3 | 79 | 10.7 | 40 |
| 4 | 995.8 | 18 | -4.0 | 55 | 5.7 | 90 |
| 5 | 993.5 | 18 | -7.4 | 51 | 9.6 | 60 |
| 6 | 988.8 | 18 | -8.5 | 53 | 8.5 | 50 |
| 7 | 998.2 | 18 | -9.5 | 57 | 4.1 | 170 |
| 8 | 984.7 | 18 | -9.0 | 60 | 8.0 | 90 |
| 9 | 986.0 | 18 | -8.6 | 72 | 2.6 | 20 |
| 10 | 984.6 | 18 | -11.0 | 69 | 2.3 | 270 |
| 11 | 984.4 | 18 | -13.9 | 84 | 1.4 | 210 |
| 12 | 982.6 | 18 | -13.8 | 77 | 2.6 | 220 |
| 13 | 986.4 | 18 | -8.0 | 67 | 12.5 | 40 |
| 14 | 982.4 | 18 | -3.4 | 76 | 18.0 | 60 |
| 15 | 982.5 | 18 | -4.9 | 54 | 1.9 | 310 |
| 16 | 981.3 | 18 | -7.6 | 55 | 2.3 | 230 |
| 17 | 984.4 | 18 | -11.3 | 49 | 8.5 | 90 |
| 18 | 983.4 | 18 | -12.1 | 53 | 7.1 | 60 |
| 19 | 983.2 | 18 | -8.3 | 61 | 14.5 | 80 |
| 20 | 985.2 | 18 | -5.5 | 53 | 4.3 | 30 |
| 21 | 987.8 | 18 | -4.0 | 75 | 10.5 | 50 |
| 22 | 991.0 | 18 | -6.7 | 79 | 2.6 | 30 |
| 23 | 988.3 | 18 | -10.4 | 86 | 4.0 | 210 |
| 24 | 991.5 | 18 | -12.5 | 64 | 0.5 | 330 |
| 25 | 986.4 | 18 | -8.9 | 55 | 5.4 | 170 |
| 26 | 984.7 | 18 | -6.2 | 91 | 15.9 | 40 |
| 27 | 985.4 | 18 | -7.8 | 69 | 8.5 | 70 |
| 28 | 975.3 | 18 | -9.3 | 56 | 5.1 | 110 |
| 29 | 983.2 | 18 | -10.7 | 67 | 1.3 | 60 |
| 30 | 973.7 | 18 | -7.4 | 68 | 9.6 | 60 |