指定気圧面の観測データ（日ごとの値）
 |  |
 |  |  |  |  |  |  |  |  |  |  |  |  |
 |  |  |  |  |  |  |  |  |  |  |  |  |
 |  |  |  |  |  |
石垣島 1999年7月21時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1005.8 | 7 | 29.1 | 79 | 4.1 | 190 |
| 2 | 1006.5 | 7 | 29.1 | 79 | 4.4 | 200 |
| 3 | 1007.4 | 7 | 28.5 | 76 | 4.1 | 210 |
| 4 | 1007.4 | 7 | 29.0 | 77 | 5.7 | 210 |
| 5 | 1006.9 | 7 | 29.1 | 77 | 1.3 | 20 |
| 6 | 1007.7 | 7 | 28.5 | 77 | 1.8 | 50 |
| 7 | 1005.9 | 7 | 27.9 | 83 | 4.3 | 130 |
| 8 | 1004.0 | 7 | 26.9 | 91 | 3.8 | 130 |
| 9 | 1001.9 | 7 | 29.3 | 82 | 2.9 | 170 |
| 10 | 1001.7 | 7 | 29.2 | 85 | 2.5 | 180 |
| 11 | 1001.4 | 7 | 29.0 | 74 | 1.8 | 20 |
| 12 | 1001.5 | 7 | 27.7 | 82 | 2.7 | 50 |
| 13 | 1003.5 | 7 | 27.3 | 84 | 1.8 | 200 |
| 14 | 1004.3 | 7 | 29.3 | 85 | 2.7 | 120 |
| 15 | 1004.6 | 7 | 29.2 | 81 | 4.3 | 210 |
| 16 | 1005.1 | 7 | 28.1 | 88 | 5.3 | 220 |
| 17 | 1005.3 | 7 | 29.3 | 83 | 2.0 | 200 |
| 18 | 1002.5 | 7 | 29.7 | 80 | 5.0 | 120 |
| 19 | 1002.9 | 7 | 30.1 | 76 | 3.2 | 70 |
| 20 | 1004.3 | 7 | 30.0 | 74 | 2.8 | 110 |
| 21 | 1003.0 | 7 | 29.8 | 76 | 3.9 | 70 |
| 22 | 1002.5 | 7 | 29.0 | 81 | 6.0 | 90 |
| 23 | 1001.4 | 7 | 29.5 | 75 | 7.1 | 90 |
| 24 | 997.6 | 7 | 28.6 | 83 | 6.9 | 70 |
| 25 | 994.9 | 7 | 27.9 | 86 | 3.1 | 330 |
| 26 | 1000.3 | 7 | 28.5 | 86 | 5.2 | 230 |
| 27 | 1001.7 | 7 | 28.7 | 86 | 5.5 | 180 |
| 28 | 1003.3 | 7 | 29.4 | 83 | 7.2 | 160 |
| 29 | 1006.4 | 7 | 27.2 | 88 | 4.4 | 120 |
| 30 | 1006.0 | 7 | 28.8 | 78 | 3.1 | 110 |
| 31 | 1003.4 | 7 | 28.9 | 75 | 2.1 | 10 |