Hurricane Irma Discussion Number 48
NWS National Hurricane Center Miami FL AL112017
1100 PM EDT Sun Sep 10 2017
Irma's center has moved northward across the western Florida
peninsula since it made landfall earlier this afternoon, and it is
now located over west-central Florida. NOAA WSR-88D radar data from
Tampa Bay are showing 95-100 kt winds at an elevation of about 3500
ft, so the hurricane's intensity is estimated to be 85 kt. Irma
continues to have a large wind field, and exceptional hurricane-
force wind gusts are still occurring well to the east of the center
along the Florida east coast.
自从今日午后稍早登陆后,Irma的中心已经向北移动穿过西佛罗里达半岛
并这现在位于佛州中西部. 来自坦帕湾区的NOAA WSR-88D雷达资料显示有
3500呎高度有95到100节风力, 因此飓风强度估计有85节
Irma持续拥有广大的风场,并且良好的飓风风力阵风仍正在
佛州东海岸中部以东出现
Irma appears to be making some progress to the west of due north,
and the longer-term initial motion is 350/12 kt. The cyclone is
expected to swing around the eastern side of a mid-level disturbance
currently located along the U.S. Gulf Coast, which should impart a
north-northwestward to northwestward motion during the next 48
hours. Due to its recent more inland push, Irma's center is now
forecast to remain over Florida and then move over the southeastern
United States for the duration of its existence. Due to continued
land interaction and strong shear of over 30 kt, Irma should
continue to lose strength and fall below hurricane intensity
on Monday. The cyclone is then expected to become a remnant low
over western Tennessee by day 3 and dissipate by day 4.
Irma似乎正在西北向北行进取得进展,现行长期运动为350度12节
预计此气旋将在位于美国墨西哥湾沿岸一个中度的扰动的东部周围左右摆动
这应该在接下来四十八小时转为北北西向西北运动
由于现在内陆的推动,Irma的中心预计在它存在期间内将维持在佛州上空,
随后往美国东南部移动
由于持续在陆地的交互作用与超过30节强烈风切的影响, Irma应该继续失去强度
并在周一降到飓风强度以下
之后预料这气旋在第三日于田纳西州成为残余低压,在第四日时消散
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当日下午在那不勒斯(Naples)一个NOAA潮汐测站测得变化
https://tidesandcurrents.noaa.gov/stationhome.html?id=8725110
https://i.imgur.com/rfV2uvi.png
在登陆前吹离陆风使得海水后退,接着登陆时中心低压把水吸上来
中心进入内陆后改吹强海风使得水位进一步上升
现在还是高于平均水位