指定気圧面の観測データ（日ごとの値）
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昭和 1988年4月9時（現地時間 3時） 250hPa
| 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 | 9693 | -63.2 | /// | 8.9 | 268 |
| 2 | 9550 | -54.9 | /// | 6.9 | 293 |
| 3 | 9516 | -54.7 | /// | 12.6 | 248 |
| 4 | 9515 | -60.7 | /// | 20.3 | 277 |
| 5 | 9552 | -63.3 | /// | 13.4 | 294 |
| 6 | 9552 | -57.9 | /// | 11.5 | 248 |
| 7 | 9547 | -51.0 | /// | 18.2 | 257 |
| 8 | 9669 | -52.8 | /// | 31.9 | 209 |
| 9 | 9590 | -51.6 | /// | 9.2 | 328 |
| 10 | 9482 | -52.1 | /// | 3.6 | 164 |
| 11 | 9438 | -62.5 | /// | 8.9 | 229 |
| 12 | 9397 | -55.7 | /// | 10.5 | 245 |
| 13 | 9446 | -58.5 | /// | 14.5 | 271 |
| 14 | 9485 | -55.5 | /// | 17.9 | 285 |
| 15 | 9434 | -57.2 | /// | 12.8 | 330 |
| 16 | 9373 | -57.6 | /// | 14.1 | 292 |
| 17 | 9335 | -55.5 | /// | 15.4 | 275 |
| 18 | 9365 | -57.1 | /// | 19.4 | 271 |
| 19 | 9333 | -53.3 | /// | 14.0 | 253 |
| 20 | 9335 | -54.5 | /// | 10.2 | 266 |
| 21 | 9404 | -58.1 | /// | 5.4 | 280 |
| 22 | 9419 | -51.4 | /// | 13.0 | 248 |
| 23 | 9453 | -50.0 | /// | 14.8 | 286 |
| 24 | 9488 | -51.2 | /// | 11.4 | 235 |
| 25 | 9628 | -52.6 | /// | 50.4 | 203 |
| 26 | 9852 | -58.3 | /// | 49.8 | 251 |
| 27 | 9716 | -50.5 | /// | 21.3 | 275 |
| 28 | 9654 | -54.4 | /// | 30.0 | 279 |
| 29 | 9514 | -54.8 | /// | 12.8 | 314 |
| 30 | 9468 | -55.1 | /// | 11.2 | 295 |