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21時（現地時間 15時） 700hPa
| 日 | ジオポテンシャル 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|
| 1 | 2690 | -17.2 | 15 | 3 | 330 |
| 2 | 2706 | -21.2 | 65 | 3 | 320 |
| 3 | 2599 | -16.6 | 94 | 8 | 27 |
| 4 | 2599 | -17.1 | 87 | 8 | 24 |
| 5 | 2743 | -23.6 | 69 | 5 | 27 |
| 6 | 2629 | -17.8 | 13 | 3 | 74 |
| 7 | 2534 | -21.3 | 93 | 4 | 86 |
| 8 | 2554 | -23.5 | 89 | 1 | 71 |
| 9 | 2584 | -22.2 | 69 | 4 | 230 |
| 10 | 2649 | -19.8 | 20 | 10 | 236 |
| 11 | 2634 | -21.3 | 63 | 2 | 99 |
| 12 | 2634 | -14.0 | 95 | 6 | 26 |
| 13 | 2688 | -15.6 | 92 | 11 | 327 |
| 14 | 2705 | -18.0 | 94 | 11 | 49 |
| 15 | 2577 | -20.9 | 88 | 5 | 290 |
| 16 | 2652 | -22.8 | 86 | 7 | 26 |
| 17 | 2604 | -22.0 | 66 | 10 | 66 |
| 18 | 2567 | -22.0 | 90 | 9 | 54 |
| 19 | 2526 | -25.8 | 93 | 8 | 311 |
| 20 | 2549 | -25.3 | 84 | 4 | 286 |
| 21 | 2623 | -26.1 | 30 | 7 | 198 |
| 22 | 2658 | -21.3 | 10 | 9 | 247 |
| 23 | 2680 | -20.1 | 91 | 8 | 26 |
| 24 | 2650 | -19.2 | 92 | 24 | 17 |
| 25 | 2599 | -19.9 | 72 | 12 | 130 |
| 26 | 2592 | -23.0 | 68 | 9 | 261 |
| 27 | 2648 | -24.4 | 22 | 10 | 241 |
| 28 | 2671 | -15.2 | 3 | 21 | 175 |
| 29 | 2684 | -18.3 | 92 | 9 | 58 |
| 30 | 2633 | -16.6 | 94 | 6 | 53 |