指定気圧面の観測データ（日ごとの値）
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名瀬／本茶峠 1998年7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 | 981.3 | 295 | 27.4 | 80 | 1.4 | 250 |
| 2 | 981.7 | 295 | 26.6 | 87 | 1.8 | 180 |
| 3 | 982.9 | 295 | 27.5 | 80 | 2.3 | 180 |
| 4 | 984.7 | 295 | 25.0 | 98 | 1.9 | 170 |
| 5 | 984.1 | 295 | 26.9 | 84 | 1.4 | 160 |
| 6 | 982.9 | 295 | 26.7 | 81 | 3.8 | 110 |
| 7 | 981.5 | 295 | 26.7 | 89 | 2.7 | 140 |
| 8 | 979.6 | 295 | 26.8 | 91 | 2.8 | 100 |
| 9 | 978.7 | 295 | 26.5 | 89 | 2.7 | 120 |
| 10 | 977.1 | 295 | 27.0 | 87 | 1.6 | 140 |
| 11 | 975.9 | 295 | 27.1 | 80 | 1.0 | 190 |
| 12 | 976.2 | 295 | 27.1 | 83 | 1.1 | 280 |
| 13 | 977.2 | 295 | 26.8 | 84 | 2.8 | 290 |
| 14 | 977.6 | 295 | 27.5 | 85 | 1.4 | 270 |
| 15 | 975.5 | 295 | 28.5 | 77 | 2.4 | 280 |
| 16 | 968.4 | 295 | 22.8 | 100 | 3.8 | 150 |
| 17 | 966.2 | 295 | 26.5 | 100 | 5.7 | 290 |
| 18 | 970.3 | 295 | 27.1 | 96 | 6.2 | 280 |
| 19 | 968.1 | 295 | 28.0 | 85 | 4.7 | 260 |
| 20 | 969.4 | 295 | 24.6 | 100 | 3.6 | 310 |
| 21 | 969.9 | 295 | 26.5 | 93 | 1.0 | 300 |
| 22 | 970.9 | 295 | 24.6 | 99 | 2.8 | 190 |
| 23 | 971.8 | 295 | 22.4 | 100 | 5.0 | 290 |
| 24 | 971.5 | 295 | 24.3 | 100 | 2.6 | 130 |
| 25 | 971.5 | 295 | 26.9 | 92 | 3.1 | 200 |
| 26 | 971.4 | 295 | 24.3 | 100 | 2.3 | 280 |
| 27 | 972.6 | 295 | 25.9 | 100 | 2.5 | 290 |
| 28 | 972.7 | 295 | 28.1 | 81 | 1.9 | 250 |
| 29 | 975.2 | 295 | 24.5 | 94 | 2.7 | 250 |
| 30 | 977.0 | 295 | 26.3 | 91 | 1.4 | 260 |
| 31 | 979.0 | 295 | 27.2 | 89 | 2.7 | 170 |