指定気圧面の観測データ（日ごとの値）
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館野 2012年3月21時 500hPa
| 日 | ジオポテンシャル 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|
| 1 | 5610 | -18.8 | 63 | 18 | 278 |
| 2 | 5567 | -17.5 | 45 | 36 | 271 |
| 3 | 5577 | -23.8 | 6 | 30 | 280 |
| 4 | 5630 | -20.3 | 71 | 30 | 288 |
| 5 | 5660 | -12.0 | 72 | 35 | 261 |
| 6 | 5624 | -15.7 | 18 | 41 | 256 |
| 7 | 5610 | -20.1 | 53 | 12 | 256 |
| 8 | 5591 | -17.2 | 88 | 21 | 244 |
| 9 | 5565 | -18.1 | 79 | 28 | 245 |
| 10 | 5452 | -25.3 | 16 | 28 | 259 |
| 11 | 5343 | -29.6 | 3 | 28 | 263 |
| 12 | 5345 | -30.0 | 4 | 26 | 276 |
| 13 | 5410 | -31.3 | 6 | 26 | 277 |
| 14 | 5433 | -31.2 | 7 | 24 | 279 |
| 15 | 5475 | -26.6 | 6 | 35 | 326 |
| 16 | 5609 | -20.0 | 85 | 23 | 293 |
| 17 | 5614 | -15.7 | 46 | 23 | 270 |
| 18 | 5478 | -22.9 | 30 | 29 | 266 |
| 19 | 5450 | -20.7 | 51 | 55 | 268 |
| 20 | 5429 | -22.2 | 1 | 48 | 256 |
| 21 | 5525 | -23.9 | 25 | 32 | 307 |
| 22 | 5606 | -16.3 | 81 | 33 | 271 |
| 23 | 5611 | -10.6 | 97 | 38 | 245 |
| 24 | 5395 | -21.4 | 3 | 43 | 252 |
| 25 | 5337 | -28.1 | 3 | 36 | 254 |
| 26 | 5384 | -32.0 | 10 | 23 | 289 |
| 27 | 5509 | -29.3 | 28 | 19 | 272 |
| 28 | 5463 | -31.0 | 5 | 16 | 261 |
| 29 | 5660 | -20.2 | 11 | 19 | 298 |
| 30 | 5669 | -17.3 | 80 | 21 | 268 |
| 31 | 5453 | -20.5 | 5 | 44 | 239 |