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 1999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 | 978.1 | 295 | 20.9 | 90 | 4.3 | 90 |
| 2 | 975.1 | 295 | 21.3 | 91 | 5.1 | 130 |
| 3 | 973.3 | 295 | 22.2 | 96 | 1.6 | 170 |
| 4 | 973.4 | 295 | 23.5 | 87 | 2.2 | 340 |
| 5 | 976.3 | 295 | 23.1 | 96 | 3.8 | 90 |
| 6 | 979.3 | 295 | 24.3 | 96 | 2.3 | 130 |
| 7 | 977.9 | 295 | 25.2 | 84 | 2.7 | 220 |
| 8 | 975.1 | 295 | 25.6 | 82 | 5.0 | 260 |
| 9 | 977.1 | 295 | 21.1 | 96 | 3.8 | 70 |
| 10 | 977.5 | 295 | 20.1 | 89 | 3.2 | 100 |
| 11 | 971.7 | 295 | 22.4 | 96 | 6.1 | 300 |
| 12 | 976.1 | 295 | 22.2 | 97 | 0.7 | 290 |
| 13 | 973.3 | 295 | 24.0 | 90 | 1.9 | 220 |
| 14 | 974.2 | 295 | 22.9 | 86 | 2.0 | 170 |
| 15 | 977.0 | 295 | 23.4 | 83 | 1.7 | 190 |
| 16 | 977.3 | 295 | 24.5 | 84 | 3.8 | 170 |
| 17 | 976.3 | 295 | 26.6 | 78 | 2.4 | 200 |
| 18 | 975.9 | 295 | 26.6 | 77 | 3.0 | 220 |
| 19 | 976.6 | 295 | 25.2 | 84 | 3.5 | 210 |
| 20 | 977.0 | 295 | 22.3 | 95 | 0.1 | - |
| 21 | 975.3 | 295 | 23.4 | 90 | 3.4 | 220 |
| 22 | 978.2 | 295 | 24.9 | 86 | 2.0 | 250 |
| 23 | 977.4 | 295 | 26.0 | 84 | 1.1 | 160 |
| 24 | 976.6 | 295 | 27.0 | 72 | 2.7 | 250 |
| 25 | 976.2 | 295 | 26.8 | 74 | 1.8 | 250 |
| 26 | 978.3 | 295 | 25.6 | 85 | 3.0 | 190 |
| 27 | 978.3 | 295 | 26.8 | 78 | 2.2 | 240 |
| 28 | 978.4 | 295 | 26.0 | 82 | 3.3 | 200 |
| 29 | 975.6 | 295 | 25.9 | 85 | 4.6 | 190 |
| 30 | 977.0 | 295 | 25.5 | 87 | 1.7 | 290 |