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6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 | 976.5 | 295 | 22.4 | 89 | 3.1 | 100 |
| 2 | 970.7 | 295 | 25.1 | 97 | 3.0 | 190 |
| 3 | 972.5 | 295 | 21.2 | 93 | 3.7 | 300 |
| 4 | 977.6 | 295 | 22.8 | 80 | 2.2 | 60 |
| 5 | 974.9 | 295 | 17.2 | 100 | /// | /// |
| 6 | 976.4 | 295 | 21.3 | 94 | 2.2 | 30 |
| 7 | 976.8 | 295 | 22.1 | 92 | 1.0 | 290 |
| 8 | 977.7 | 295 | 21.8 | 89 | 4.3 | 110 |
| 9 | 973.8 | 295 | 23.1 | 100 | 3.4 | 180 |
| 10 | 976.0 | 295 | 23.0 | 100 | 1.6 | 150 |
| 11 | 977.2 | 295 | 22.6 | 100 | 2.0 | 290 |
| 12 | 977.6 | 295 | 23.2 | 94 | 1.7 | 120 |
| 13 | 974.1 | 295 | 25.6 | 82 | 3.7 | 240 |
| 14 | 972.5 | 295 | 25.6 | 87 | 4.8 | 250 |
| 15 | 973.4 | 295 | 20.8 | 100 | 2.1 | 300 |
| 16 | 971.2 | 295 | 23.7 | 100 | 3.6 | 280 |
| 17 | 971.2 | 295 | 24.4 | 98 | 3.9 | 250 |
| 18 | 974.6 | 295 | 25.0 | 98 | 3.4 | 230 |
| 19 | 975.1 | 295 | 26.8 | 84 | 3.7 | 210 |
| 20 | 977.8 | 295 | 26.2 | 91 | 2.4 | 220 |
| 21 | 978.3 | 295 | 26.1 | 92 | 3.4 | 190 |
| 22 | 978.6 | 295 | 25.8 | 88 | 2.8 | 190 |
| 23 | 979.9 | 295 | 25.1 | 100 | 3.0 | 170 |
| 24 | 980.1 | 295 | 25.3 | 98 | 3.5 | 140 |
| 25 | 981.3 | 295 | 25.8 | 97 | 3.5 | 160 |
| 26 | 983.1 | 295 | 26.6 | 90 | 4.0 | 180 |
| 27 | 984.1 | 295 | 26.6 | 93 | 2.1 | 170 |
| 28 | 983.0 | 295 | 27.4 | 81 | 2.0 | 220 |
| 29 | 980.4 | 295 | 27.5 | 83 | 2.7 | 280 |
| 30 | 979.6 | 295 | 26.2 | 82 | 1.0 | 210 |