指定気圧面の観測データ（日ごとの値）
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昭和 2004年1月9時（現地時間 3時） 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 987.0 | 21 | 1.5 | 74 | 8.5 | 30 |
| 2 | 975.5 | 21 | 3.7 | 67 | 11.7 | 60 |
| 3 | 988.8 | 21 | 0.8 | 69 | 7.4 | 60 |
| 4 | 979.8 | 21 | 0.5 | 52 | 6.5 | 60 |
| 5 | 986.2 | 21 | -2.0 | 74 | 2.6 | 50 |
| 6 | 989.5 | 21 | -3.5 | 71 | 5.8 | 60 |
| 7 | 986.0 | 21 | -3.2 | 82 | 1.9 | 70 |
| 8 | 983.1 | 21 | -3.1 | 72 | 4.4 | 40 |
| 9 | 987.1 | 21 | -1.6 | 62 | 6.9 | 70 |
| 10 | 981.4 | 21 | -0.2 | 65 | 4.0 | 30 |
| 11 | 979.9 | 21 | -3.8 | 81 | 2.1 | 40 |
| 12 | 980.9 | 21 | -3.6 | 85 | 2.4 | 60 |
| 13 | 984.5 | 21 | -4.0 | 81 | 2.1 | 300 |
| 14 | 984.1 | 21 | -5.1 | 78 | 2.2 | 50 |
| 15 | 982.0 | 21 | -1.0 | 62 | 17.0 | 60 |
| 16 | 981.8 | 21 | 0.2 | 60 | 15.0 | 70 |
| 17 | 980.1 | 21 | 0.1 | 77 | 11.5 | 50 |
| 18 | 954.7 | 21 | 0.8 | 67 | 29.8 | 60 |
| 19 | 978.5 | 21 | 0.1 | 60 | 10.7 | 80 |
| 20 | 977.0 | 21 | -0.8 | 63 | 7.4 | 70 |
| 21 | 974.9 | 21 | 0.4 | 66 | 6.9 | 90 |
| 22 | 974.6 | 21 | -1.0 | 93 | 6.2 | 50 |
| 23 | 977.9 | 21 | 0.1 | 70 | 3.0 | 130 |
| 24 | 976.9 | 21 | -0.1 | 55 | 11.1 | 80 |
| 25 | 978.4 | 21 | -3.0 | 81 | 1.6 | 40 |
| 26 | 982.3 | 21 | -3.7 | 87 | 1.4 | 270 |
| 27 | 992.6 | 21 | -1.1 | 85 | 3.3 | 290 |
| 28 | 996.0 | 21 | -1.9 | 79 | 0.9 | 70 |
| 29 | 990.6 | 21 | -4.0 | 69 | 1.3 | 40 |
| 30 | 987.8 | 21 | -4.1 | 83 | 2.8 | 30 |
| 31 | 999.3 | 21 | -1.5 | 70 | 7.5 | 60 |