指定気圧面の観測データ（日ごとの値）
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昭和 2010年3月21時（現地時間 15時） 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 983.0 | 18 | -3.4 | 56 | 1.6 | 200 |
| 2 | 987.6 | 18 | -4.6 | 55 | 1.7 | 300 |
| 3 | 999.9 | 18 | -2.9 | 59 | 1.0 | 210 |
| 4 | 988.9 | 18 | -2.5 | 54 | 2.6 | 80 |
| 5 | 969.8 | 18 | -4.0 | 92 | 18.7 | 50 |
| 6 | 965.5 | 18 | 0.2 | 66 | 1.1 | 70 |
| 7 | 970.9 | 18 | -4.5 | 65 | 0.9 | 60 |
| 8 | 973.9 | 18 | -7.1 | 66 | 4.6 | 170 |
| 9 | 986.5 | 18 | -8.6 | 62 | 3.0 | 260 |
| 10 | 995.6 | 18 | -7.3 | 71 | 4.4 | 170 |
| 11 | 977.9 | 18 | -7.1 | 60 | 5.5 | 170 |
| 12 | 990.3 | 18 | -7.4 | 46 | 5.4 | 50 |
| 13 | 992.1 | 18 | -8.7 | 40 | 1.9 | 170 |
| 14 | 985.8 | 18 | -4.3 | 92 | 20.8 | 60 |
| 15 | 1000.7 | 18 | -3.2 | 69 | 13.9 | 50 |
| 16 | 1001.1 | 18 | -4.3 | 58 | 3.4 | 50 |
| 17 | 988.8 | 18 | -3.9 | 44 | 2.4 | 140 |
| 18 | 987.9 | 18 | -8.0 | 48 | 7.4 | 80 |
| 19 | 988.5 | 18 | -3.1 | 54 | 2.6 | 170 |
| 20 | 980.9 | 18 | -12.5 | 62 | 1.6 | 310 |
| 21 | 984.6 | 18 | -8.0 | 53 | 9.1 | 50 |
| 22 | 986.6 | 18 | -4.4 | 51 | 0.6 | 70 |
| 23 | 988.1 | 18 | -5.1 | 57 | 1.0 | 310 |
| 24 | 985.2 | 18 | -5.1 | 88 | 13.9 | 40 |
| 25 | 986.7 | 18 | -3.3 | 57 | 5.0 | 110 |
| 26 | 984.4 | 18 | -5.4 | 50 | 2.5 | 10 |
| 27 | 990.0 | 18 | -4.4 | 80 | 14.1 | 70 |
| 28 | 980.1 | 18 | -6.4 | 56 | 15.4 | 70 |
| 29 | 978.0 | 18 | -4.9 | 93 | 20.0 | 60 |
| 30 | 984.6 | 18 | -5.5 | 71 | 10.8 | 60 |
| 31 | 982.4 | 18 | -9.7 | 59 | 6.3 | 70 |