指定気圧面の観測データ（日ごとの値）
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昭和 1991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 | 984.4 | 21 | 2.1 | 61 | 13.7 | 60 |
| 2 | 985.6 | 21 | 0.7 | 64 | 4.5 | 40 |
| 3 | 975.2 | 21 | -0.4 | 49 | 14.1 | 80 |
| 4 | 972.8 | 21 | -0.2 | 73 | 6.1 | 60 |
| 5 | 979.3 | 21 | -3.5 | 93 | 3.9 | 20 |
| 6 | 977.2 | 21 | -3.2 | 89 | 3.2 | 310 |
| 7 | 980.4 | 21 | -1.8 | 85 | 2.8 | 10 |
| 8 | 985.5 | 21 | -3.4 | 79 | 2.2 | 90 |
| 9 | 987.0 | 21 | -1.5 | 88 | 3.1 | 50 |
| 10 | 984.8 | 21 | -3.0 | 90 | 3.3 | 40 |
| 11 | 984.1 | 21 | -3.1 | 93 | 0.8 | 280 |
| 12 | 981.2 | 21 | -3.7 | 88 | 3.0 | 230 |
| 13 | 982.1 | 21 | -3.1 | 86 | 5.8 | 30 |
| 14 | 982.0 | 21 | -6.9 | 66 | 5.2 | 90 |
| 15 | 977.3 | 21 | -7.7 | 89 | 2.5 | 180 |
| 16 | 975.4 | 21 | -2.9 | 76 | 14.4 | 50 |
| 17 | 972.0 | 21 | 0.7 | 83 | 18.2 | 60 |
| 18 | /// | /// | /// | /// | /// | /// |
| 19 | 978.1 | 21 | 0.1 | 71 | 6.7 | 40 |
| 20 | 976.3 | 21 | -2.2 | 63 | 6.8 | 70 |
| 21 | 970.8 | 21 | -4.7 | 81 | 1.0 | 360 |
| 22 | 978.0 | 21 | -3.2 | 71 | 7.2 | 60 |
| 23 | 974.4 | 21 | -2.5 | 67 | 7.8 | 50 |
| 24 | 985.5 | 21 | -2.4 | 68 | 6.6 | 50 |
| 25 | 988.2 | 21 | -3.2 | 66 | 1.4 | 50 |
| 26 | 988.1 | 21 | -5.8 | 69 | 1.3 | 80 |
| 27 | 988.3 | 21 | -5.7 | 70 | 2.1 | 50 |
| 28 | 987.5 | 21 | -3.0 | 79 | 4.0 | 30 |
| 29 | 976.9 | 21 | -2.2 | 71 | 23.0 | 70 |
| 30 | 976.2 | 21 | -0.4 | 90 | 16.1 | 40 |
| 31 | 989.5 | 21 | -0.3 | 83 | 12.1 | 40 |