指定気圧面の観測データ（日ごとの値）
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根室 2004年11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 | 1011.1 | 39 | 14.1 | 99 | 5.5 | 120 |
| 2 | 1013.6 | 39 | 5.9 | 92 | 7.9 | 80 |
| 3 | 1016.1 | 39 | 7.3 | 97 | 5.4 | 70 |
| 4 | 1010.1 | 39 | 9.2 | 99 | 5.9 | 60 |
| 5 | 1010.4 | 39 | 11.1 | 84 | 8.1 | 340 |
| 6 | 1014.7 | 39 | 10.1 | 84 | 3.4 | 170 |
| 7 | 1011.8 | 39 | 11.5 | 76 | 5.9 | 10 |
| 8 | 1023.9 | 39 | 6.8 | 78 | 1.2 | 270 |
| 9 | 1020.5 | 39 | 8.9 | 95 | 1.6 | 230 |
| 10 | 1027.8 | 39 | 8.5 | 82 | 0.3 | 330 |
| 11 | 1017.4 | 39 | 14.1 | 90 | 10.6 | 210 |
| 12 | 1000.0 | 39 | 15.1 | 93 | 7.5 | 240 |
| 13 | 1007.0 | 39 | 6.0 | 80 | 13.7 | 320 |
| 14 | 1015.0 | 39 | 6.7 | 58 | 4.7 | 250 |
| 15 | 1005.1 | 39 | 11.6 | 81 | 5.0 | 200 |
| 16 | 998.3 | 39 | 2.9 | 51 | 10.0 | 240 |
| 17 | 1008.9 | 39 | 4.6 | 59 | 5.7 | 250 |
| 18 | 1020.8 | 39 | 7.0 | 53 | 3.2 | 210 |
| 19 | 1012.7 | 39 | 7.2 | 87 | 1.9 | 290 |
| 20 | 1004.6 | 39 | 7.3 | 73 | 3.7 | 270 |
| 21 | 1005.4 | 39 | 7.0 | 50 | 12.9 | 320 |
| 22 | 1014.9 | 39 | 5.4 | 78 | 0.9 | 260 |
| 23 | 1017.1 | 39 | 6.3 | 90 | 1.4 | 190 |
| 24 | 1014.6 | 39 | 9.6 | 71 | 2.5 | 190 |
| 25 | 1008.7 | 39 | 3.1 | 80 | 9.5 | 290 |
| 26 | 1013.0 | 39 | 4.5 | 65 | 2.6 | 230 |
| 27 | 976.6 | 39 | 6.9 | 77 | 10.4 | 250 |
| 28 | 1001.1 | 39 | 0.6 | 55 | 10.3 | 320 |
| 29 | 1007.1 | 39 | -2.7 | 51 | 11.1 | 290 |
| 30 | 1013.8 | 39 | -0.6 | 61 | 5.6 | 320 |