Barometric measurement from Katrina

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dhweather
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Barometric measurement from Katrina

#1 Postby dhweather » Tue Oct 11, 2005 9:33 am

While most of my Davis Vantage weather station was destroyed,
the console, inside the house, survived. I was able to extract
a minimum pressure from Katrina of 934MB / 27.59 inches.
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#2 Postby HURAKAN » Tue Oct 11, 2005 9:41 am

Incredible! I was able to measure Katrina's barometric pressure when the cyclone was passing over Miami. It was 985.3 mb! Of course, not even close to yours!
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#3 Postby Valkhorn » Tue Oct 11, 2005 12:01 pm

27.92" in Hattiesburg
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#4 Postby dhweather » Tue Oct 11, 2005 4:25 pm

Going strictly on pressure, the pressure of 934 millibars at landfall I have
measured in Diamondhead is LOWER or equal to than the alltime
minimum pressure of these hurricanes:

Hugo 934
Charley 941
1926 Miami 935
1900 Galveston 936
1898 Brunswick 938
Hazel 938
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#5 Postby Scorpion » Tue Oct 11, 2005 5:00 pm

I believe Hugo was 918. But thats odd your pressure is quite high. I thought Katrina was 927 at landfall. I guess you didnt go through the exact center.
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#6 Postby HurryKane » Tue Oct 11, 2005 5:11 pm

Scorpion wrote:I believe Hugo was 918. But thats odd your pressure is quite high. I thought Katrina was 927 at landfall. I guess you didnt go through the exact center.


Dhweather's house (and mine) was in the eastern eyewall. We're directly north of the St. Louis Bay.
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#7 Postby dhweather » Tue Oct 11, 2005 5:17 pm

Scorpion wrote:I believe Hugo was 918. But thats odd your pressure is quite high. I thought Katrina was 927 at landfall. I guess you didnt go through the exact center.


I got the Hugo numbers from the NHC

http://www.nhc.noaa.gov/pastint.shtml

We were in the Eastern Eyewall, as HurryKane noted.
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#8 Postby MGC » Tue Oct 11, 2005 7:54 pm

934mb is the same pressure measured at the Slidell NWS office. Considering both sites outside the eye, I'd conjecure the pressure was a tad lower over central Hancock County, perhaps as much a 5mb lower....MGC
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#9 Postby dhweather » Tue Oct 11, 2005 8:47 pm

MGC wrote:934mb is the same pressure measured at the Slidell NWS office. Considering both sites outside the eye, I'd conjecure the pressure was a tad lower over central Hancock County, perhaps as much a 5mb lower....MGC


And that will be a great unknown as that geographic area is in the
Stennis Space Center buffer zone - nobody can or does live there.
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#10 Postby Recurve » Wed Oct 12, 2005 1:31 am

Wow! That's incredible to have that reading.
Course, you probably wish you didn't. Hope you never see anything like that again.
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Re: Barometric measurement from Katrina

#11 Postby P.K. » Wed Oct 12, 2005 2:55 am

dhweather wrote:While most of my Davis Vantage weather station was destroyed,
the console, inside the house, survived. I was able to extract
a minimum pressure from Katrina of 934MB


Wow that is low. I've never recorded below about 950hPa here even with the all the baroclinic systems that move through in the autumn/winter.
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