指定気圧面の観測データ（日ごとの値）
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秋田 2000年4月9時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1008.1 | 7 | 6.7 | 52 | 10.7 | 280 |
| 2 | 1020.9 | 7 | 6.5 | 50 | 8.0 | 270 |
| 3 | 1024.4 | 7 | 4.7 | 52 | 2.7 | 140 |
| 4 | 1023.2 | 7 | 7.3 | 46 | 4.4 | 140 |
| 5 | 1012.4 | 7 | 11.2 | 54 | 6.9 | 120 |
| 6 | 1011.6 | 7 | 7.0 | 62 | 8.5 | 290 |
| 7 | 1018.4 | 7 | 7.9 | 48 | 5.9 | 140 |
| 8 | 1015.9 | 7 | 9.5 | 55 | 6.4 | 270 |
| 9 | 1024.7 | 7 | 8.0 | 56 | 5.2 | 130 |
| 10 | 1013.6 | 7 | 12.8 | 50 | 7.7 | 130 |
| 11 | 1003.5 | 7 | 6.1 | 54 | 6.3 | 290 |
| 12 | 999.0 | 7 | 7.4 | 67 | 2.0 | 150 |
| 13 | 1007.8 | 7 | 9.6 | 64 | 3.5 | 150 |
| 14 | 1005.0 | 7 | 7.8 | 93 | 2.8 | 90 |
| 15 | 1012.5 | 7 | 7.8 | 68 | 4.2 | 310 |
| 16 | 1007.1 | 7 | 6.8 | 59 | 4.5 | 310 |
| 17 | 1013.5 | 7 | 6.5 | 62 | 7.3 | 290 |
| 18 | 1018.3 | 7 | 7.2 | 76 | 2.3 | 110 |
| 19 | 1016.7 | 7 | 9.6 | 65 | 3.6 | 340 |
| 20 | 1016.4 | 7 | 10.3 | 62 | 8.8 | 130 |
| 21 | 1013.4 | 7 | 14.6 | 62 | 7.9 | 120 |
| 22 | 1000.7 | 7 | 10.4 | 89 | 5.5 | 280 |
| 23 | 997.9 | 7 | 11.3 | 84 | 5.7 | 170 |
| 24 | 1004.2 | 7 | 9.9 | 73 | 7.9 | 260 |
| 25 | 1007.8 | 7 | 11.2 | 79 | 8.6 | 250 |
| 26 | 1010.7 | 7 | 12.4 | 60 | 4.2 | 120 |
| 27 | 999.5 | 7 | 12.1 | 82 | 7.3 | 130 |
| 28 | 998.9 | 7 | 9.5 | 89 | 8.4 | 220 |
| 29 | 1013.0 | 7 | 9.0 | 71 | 5.7 | 280 |
| 30 | 1016.4 | 7 | 13.0 | 75 | 4.3 | 230 |