指定気圧面の観測データ（日ごとの値）
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昭和 1989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 | 985.3 | 21 | -4.1 | 71 | 1.4 | 40 |
| 2 | 982.7 | 21 | -3.9 | 62 | 0.3 | 80 |
| 3 | 986.9 | 21 | -4.7 | 81 | 1.3 | 360 |
| 4 | 988.4 | 21 | -4.1 | 82 | 1.3 | 30 |
| 5 | 990.0 | 21 | -2.1 | 75 | 1.2 | 140 |
| 6 | 987.4 | 21 | -4.7 | 76 | 2.6 | 240 |
| 7 | 994.6 | 21 | -5.5 | 84 | 0.7 | 260 |
| 8 | 997.9 | 21 | -3.6 | 83 | 1.6 | 290 |
| 9 | 994.1 | 21 | -3.9 | 75 | 3.7 | 190 |
| 10 | 996.7 | 21 | -1.8 | 74 | 6.3 | 20 |
| 11 | 984.9 | 21 | 1.3 | 78 | 21.4 | 50 |
| 12 | 996.3 | 21 | -1.4 | 86 | 2.4 | 20 |
| 13 | 979.1 | 21 | 1.0 | 76 | 17.9 | 60 |
| 14 | 989.1 | 21 | -1.1 | 79 | 4.6 | 40 |
| 15 | 985.3 | 21 | -0.8 | 55 | 3.3 | 90 |
| 16 | 988.5 | 21 | -3.0 | 63 | 5.8 | 50 |
| 17 | 995.1 | 21 | -2.5 | 60 | 11.1 | 60 |
| 18 | 994.9 | 21 | -1.6 | 56 | 12.7 | 60 |
| 19 | 991.3 | 21 | -2.5 | 58 | 5.1 | 60 |
| 20 | 996.0 | 21 | -4.1 | 72 | 0.8 | 30 |
| 21 | 989.6 | 21 | -1.9 | 56 | 17.8 | 70 |
| 22 | 986.3 | 21 | -0.2 | 73 | 7.3 | 30 |
| 23 | 985.3 | 21 | 0.4 | 53 | 2.4 | 30 |
| 24 | 989.1 | 21 | -2.3 | 62 | 5.1 | 40 |
| 25 | 992.2 | 21 | -3.5 | 63 | 5.6 | 70 |
| 26 | 990.0 | 21 | -4.0 | 64 | 7.0 | 60 |
| 27 | 989.5 | 21 | -4.9 | 75 | 1.6 | 360 |
| 28 | 989.6 | 21 | -7.0 | 90 | 0.3 | 310 |
| 29 | 985.5 | 21 | -4.8 | 76 | 1.1 | 20 |
| 30 | 989.7 | 21 | -6.6 | 88 | 1.0 | 300 |
| 31 | 994.8 | 21 | -3.5 | 85 | 0.4 | 360 |