指定気圧面の観測データ（日ごとの値）
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那覇 1999年6月9時 300hPa
| 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 | 9700 | -28.4 | 65 | 18 | 304 |
| 2 | 9723 | -28.4 | 46 | 6 | 302 |
| 3 | 9721 | -29.0 | 32 | 8 | 304 |
| 4 | 9732 | -28.5 | 16 | 5 | 15 |
| 5 | 9735 | -28.8 | 14 | 3 | 148 |
| 6 | 9734 | -29.1 | 66 | 4 | 296 |
| 7 | 9738 | -30.1 | 57 | 6 | 329 |
| 8 | 9733 | -28.7 | 14 | 5 | 233 |
| 9 | 9733 | -27.6 | 45 | 9 | 333 |
| 10 | 9703 | -29.2 | 73 | 12 | 289 |
| 11 | 9714 | -29.0 | 68 | 15 | 272 |
| 12 | 9704 | -29.0 | 2 | 18 | 261 |
| 13 | 9664 | -29.9 | 74 | 16 | 240 |
| 14 | 9554 | -31.9 | 1 | 34 | 201 |
| 15 | 9604 | -33.5 | 31 | 31 | 214 |
| 16 | 9703 | -29.4 | 15 | 18 | 184 |
| 17 | 9711 | -30.9 | 13 | 7 | 187 |
| 18 | 9683 | -31.2 | 14 | 1 | 142 |
| 19 | 9697 | -29.7 | 78 | 10 | 260 |
| 20 | 9686 | -30.7 | 41 | 10 | 289 |
| 21 | 9683 | -29.8 | 71 | 9 | 284 |
| 22 | 9699 | -29.6 | 72 | 7 | 318 |
| 23 | 9727 | -29.3 | 57 | 4 | 81 |
| 24 | 9726 | -29.3 | 5 | 6 | 141 |
| 25 | 9720 | -29.8 | 2 | 5 | 151 |
| 26 | 9722 | -29.5 | 7 | 8 | 58 |
| 27 | 9730 | -28.2 | 67 | 6 | 11 |
| 28 | 9722 | -27.8 | 62 | 7 | 329 |
| 29 | 9715 | -27.7 | 3 | 14 | 7 |
| 30 | 9720 | -28.6 | 79 | 11 | 302 |