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11月21時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 983.6 | 295 | 19.0 | 71 | 4.6 | 320 |
| 2 | 987.3 | 295 | 17.4 | 63 | 2.6 | 340 |
| 3 | 988.5 | 295 | 16.8 | 61 | 2.7 | 350 |
| 4 | 987.6 | 295 | 16.3 | 62 | 1.9 | 50 |
| 5 | 986.7 | 295 | 18.4 | 65 | 2.3 | 70 |
| 6 | 984.8 | 295 | 19.5 | 69 | 3.0 | 90 |
| 7 | 981.1 | 295 | 19.5 | 80 | 1.9 | 60 |
| 8 | 978.3 | 295 | 18.5 | 76 | 2.5 | 320 |
| 9 | 981.3 | 295 | 18.4 | 64 | 2.1 | 330 |
| 10 | 983.1 | 295 | 19.4 | 68 | 4.2 | 80 |
| 11 | 980.4 | 295 | 20.2 | 76 | 2.8 | 110 |
| 12 | 980.4 | 295 | 19.1 | 93 | 2.6 | 340 |
| 13 | 982.9 | 295 | 20.3 | 85 | 4.9 | 80 |
| 14 | 980.2 | 295 | 20.7 | 81 | 4.3 | 90 |
| 15 | 974.9 | 295 | 19.5 | 74 | 5.3 | 330 |
| 16 | 987.1 | 295 | 16.8 | 61 | 3.2 | 330 |
| 17 | 989.0 | 295 | 16.3 | 81 | 2.5 | 310 |
| 18 | 987.2 | 295 | 15.9 | 71 | 1.7 | 30 |
| 19 | 986.6 | 295 | 17.0 | 71 | 2.7 | 80 |
| 20 | 987.6 | 295 | 17.5 | 71 | 1.4 | 350 |
| 21 | 988.7 | 295 | 18.2 | 68 | 2.5 | 70 |
| 22 | 986.0 | 295 | 20.5 | 63 | 3.5 | 110 |
| 23 | 983.6 | 295 | 19.4 | 90 | 1.6 | 320 |
| 24 | 981.1 | 295 | 17.4 | 81 | 1.9 | 300 |
| 25 | 981.2 | 295 | 18.2 | 78 | 3.8 | 310 |
| 26 | 986.5 | 295 | 15.2 | 67 | 4.4 | 360 |
| 27 | 985.2 | 295 | 15.9 | 81 | 4.1 | 90 |
| 28 | 986.6 | 295 | 14.0 | 88 | 3.0 | 330 |
| 29 | 989.7 | 295 | 13.9 | 59 | 3.3 | 10 |
| 30 | 992.5 | 295 | 15.5 | 69 | 4.4 | 70 |