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Sonde in eyewall traveled almost 10 nautical miles horizontally

Posted by Chris in Tampa on 9/19/2017, 6:14 am

Coordinates where it was released are noted. Image of sonde is where it landed. It was released at around 2,627 meters (8,619 feet) and then traveled about 9.72 nautical miles horizontally. (I just looked at the highest surface wind one from Irma and it traveled 9.75 nm)

The momentary surface winds from that sonde at 945mb surface level: 137 knots (158 mph)

Mean Boundary Level Wind (mean wind in the lowest 500 geopotential meters of the sounding):
- Wind Direction: 20° (from the NNE)
- Wind Speed: 147 knots (169 mph)

Average Wind Over Lowest Available 150 geopotential meters (gpm) of the sounding:
- Lowest 150m: 157 gpm - 7 gpm (515 geo. feet - 23 geo. feet)
- Wind Direction: 0° (from the N)
- Wind Speed: 143 knots (165 mph)



In this thread:

5:10am AST: 160mph; Maria regains category 5 strength - Chris in Tampa, 9/19/2017, 5:40 am
    • Sonde in eyewall traveled almost 10 nautical miles horizontally - Chris in Tampa, 9/19/2017, 6:14 am

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