指定気圧面の観測データ（日ごとの値）
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昭和 2008年1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 | 985.4 | 18 | -1.7 | 77 | 6.0 | 40 |
| 2 | 974.9 | 18 | 0.7 | 48 | 3.9 | 170 |
| 3 | 983.3 | 18 | 1.9 | 58 | 1.8 | 30 |
| 4 | 985.7 | 18 | 0.7 | 57 | 1.4 | 360 |
| 5 | 984.0 | 18 | -2.8 | 72 | 4.8 | 350 |
| 6 | 985.5 | 18 | -1.2 | 77 | 11.5 | 50 |
| 7 | 979.7 | 18 | -1.0 | 83 | 21.8 | 50 |
| 8 | 983.9 | 18 | 0.9 | 57 | 2.9 | 20 |
| 9 | 985.6 | 18 | 1.2 | 58 | 1.9 | 40 |
| 10 | 985.0 | 18 | -1.0 | 62 | 16.6 | 60 |
| 11 | 985.5 | 18 | 0.3 | 80 | 15.0 | 50 |
| 12 | 987.1 | 18 | 0.8 | 68 | 4.6 | 30 |
| 13 | 983.8 | 18 | -1.0 | 48 | 3.0 | 20 |
| 14 | 983.0 | 18 | -0.3 | 58 | 3.8 | 40 |
| 15 | 978.1 | 18 | 0.4 | 54 | 2.2 | 20 |
| 16 | 979.6 | 18 | 1.1 | 42 | 1.2 | 70 |
| 17 | 985.1 | 18 | 0.1 | 78 | 3.4 | 20 |
| 18 | 985.4 | 18 | -1.2 | 55 | 4.3 | 40 |
| 19 | 986.2 | 18 | -2.3 | 81 | 8.8 | 40 |
| 20 | 985.4 | 18 | -0.7 | 56 | 4.0 | 20 |
| 21 | 986.3 | 18 | 0.3 | 57 | 2.5 | 300 |
| 22 | 989.4 | 18 | -0.8 | 55 | 2.3 | 290 |
| 23 | 989.1 | 18 | -0.1 | 48 | 1.5 | 200 |
| 24 | 984.0 | 18 | -0.4 | 45 | 4.8 | 180 |
| 25 | 989.2 | 18 | -2.4 | 71 | 4.5 | 350 |
| 26 | 985.6 | 18 | -0.2 | 52 | 2.5 | 300 |
| 27 | 980.8 | 18 | 0.4 | 33 | 2.1 | 310 |
| 28 | 983.3 | 18 | 0.3 | 42 | 2.8 | 300 |
| 29 | 982.2 | 18 | -1.7 | 65 | 9.6 | 40 |
| 30 | 976.2 | 18 | -0.1 | 52 | 15.9 | 70 |
| 31 | 972.9 | 18 | 2.9 | 57 | 2.4 | 360 |