Typhoon Megi - 2016/09/26 0000 UTC
Flight route of DOTSTAR
Storm symbol in black: Location of the storm center at 2016/09/26 0000 UTC.
Storm symbol in green: Location of the storm center as the first dropwindsonde reached the surface.
Storm symbol in blue: Location of the storm center as the last dropwindsonde reached the surface.
Wind vector at each pressure level
Dropwindsonde information and the estimated surface wind speed
| NO. | TIME | Longitude | Latitude | DIST | WD | WS | MBL | WL150 |
|---|---|---|---|---|---|---|---|---|
| 1 | 2016/09/25 22:12:22 | 123.6 | 21.4 | 410 | 352 | --- | 15.0 | 13.9 |
| 2 | 2016/09/25 22:25:36 | 124.4 | 20.2 | 324 | 323 | --- | 19.1 | 16.1 |
| 3 | 2016/09/25 22:34:52 | 125.1 | 19.4 | 294 | 314 | --- | 18.7 | 18.1 |
| 4 | 2016/09/25 22:47:27 | 125.9 | 18.1 | 334 | 265 | 13.8 | 17.0 | 15.6 |
| 5 | 2016/09/25 23:01:54 | 127.6 | 18.0 | 306 | --- | --- | --- | --- |
| 6 | 2016/09/25 23:17:38 | 128.6 | 19.3 | 210 | 211 | --- | 28.0 | 25.3 |
| 7 | 2016/09/25 23:27:54 | 129.3 | 20.4 | 207 | 152 | --- | 25.3 | 23.3 |
| 8 | 2016/09/25 23:41:48 | 128.6 | 21.7 | 176 | 097 | --- | 30.8 | 30.5 |
| 9 | 2016/09/25 23:51:15 | 128.0 | 22.7 | 231 | 083 | 27.6 | 30.0 | 27.1 |
| 10 | 2016/09/26 00:00:28 | 126.8 | 23.1 | 262 | 052 | 22.9 | 26.2 | 24.5 |
| 11 | 2016/09/26 00:09:25 | 125.6 | 23.0 | 288 | 024 | 20.1 | 21.8 | 20.2 |
| 12 | 2016/09/26 00:15:55 | 124.9 | 22.9 | 330 | 019 | 19.1 | 19.7 | 18.1 |
| 13 | 2016/09/26 00:23:19 | 124.9 | 23.8 | 393 | 033 | 15.9 | 17.1 | 15.8 |
TIME: Time when dropwindsondes reached the surface. (UTC)
DIST: The distance form each dropwindsonde to the corresponded storm center. (km)
WD: Surface wind direction. (degree)
Surface wind speed: (unit : m/s)
(1) WS: Surface wind speed (at a height of 10 meters) directly from the dropwindsondes.
(2) MBL (Franklin 2003): Averaging the dropwindsonde wind speed over the 0~500 m layer, multiplied by 0.80.
(3) WL150 (Franklin 2003): Averaging the dropwindsonde wind speed over the 0~150 m layer, divided by 1.229.
CWB QPESUMS Image
(925 hPa wind, one full barb = 10 m/s)
Ask for Data
If you want to ask for the raw data of dropwindsondes, please contact with Central Weather Bureau (CWB).