MORE ABOUT DENNIS

July 9, 2005, 5:22 pm
Posted by J.B. Elliott in Tropical Weather
Rating: 0/5   Votes : 0
HURRICANE DENNIS SPECIAL DISCUSSION NUMBER 22
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
7 PM EDT SAT JUL 09 2005

WHAT A DIFFERENCE 2 HOURS MAKES! AIR FORCE AND NOAA HURRICANE
HUNTER AIRCRAFT INDICATE THE CENTRAL PRESSURE OF DENNIS DROPPED 11
MB IN AN HOUR AND A HALF. THE MAXIMUM FLIGHT-LEVEL WINDS REPORTED
N OF THE CENTER WERE 105 KT...AND THERE WERE LIKELY STRONGER WINDS
IN THE NORTHEASTERN QUADRANT THAT THE AIRCRAFT DID NOT SAMPLE.
THIS SPECIAL ADVISORY UPGRADES DENNIS TO A 100 KT CATEGORY 3
HURRICANE BASED ON THE AIRCRAFT DATA.

THE TRACK FORECAST IS UNCHANGED FROM THE PREVIOUS PACKAGE. IT IS
UNCLEAR HOW LONG THE CURRENT INTENSIFICATION WILL CONTINUE...BUT
THE INTENSITY FORECAST IS REVISED TO SHOW 12 HR OF RAPID
STRENGTHENING FOLLOWED BY SLOWER STRENGTHENING UNTIL LANDFALL. THE
NEW INTENSITY FORECAST BRINGS DENNIS ASHORE AS A CATEGORY 4
HURRICANE. AFTER-LANDFALL INTENSITIES WERE ALSO INCREASED THROUGH
72 HR TO REFLECT THE INCREASED LANDFALL INTENSITY.
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Posted by  
on July 9, 2005, 5:32 pm
Hey,

If anyone has the digits for local ham radio ops, can you list them on this blog? I had the website that listed the coords in my favs, but can't find it.
Meantime, I'll keep looking.

Thanks!
S Pridmore
McCalla

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Posted by  
on July 9, 2005, 5:40 pm
Try this site. Hope this helps.

http://live.irlp.net:8100/

73,
KG4VVU

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Posted by  
on July 9, 2005, 5:41 pm
The local hams will be using the 146.88 repeater for severe the weather net. The state HF net will be on 3965.0
You can also listen to the hams on 7243.0 this is the Alabama Emergency net. Go to the link I posted below for a complete list of frequencies.
http://hurricanefrequencies.com

Hope this information helps.

Bill
KA4OEN

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Posted by A Jones  
on July 9, 2005, 5:50 pm
Sure would be nice to follow this on your radar. Any idea why the ABC3340 Dopler image is stuck on 3 o'clock this afternoon? Hope it gets back up.

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Posted by CapeCod04  
on July 9, 2005, 6:09 pm
Was just on a different message board and the person has GEMPAK and had a measurement of 9.3C in the eye.. Temps have cooled slightly in the eye but pressures are still in the upper 940's.

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Posted by CapeCod04  
on July 9, 2005, 6:12 pm

Wind Direction (WDIR): N ( 350 deg true )
Wind Speed (WSPD): 31.1 kts
Wind Gust (GST): 40.8 kts
Wave Height (WVHT): 19.7 ft
Dominant Wave Period (DPD): 14 sec
Average Period (APD): 8.3 sec
Mean Wave Direction (MWDIR): E ( 91 deg true )
Atmospheric Pressure (PRES): 29.31 in
Pressure Tendency (PTDY): -0.13 in ( Falling Rapidly )
Air Temperature (ATMP): 80.1 °F
Water Temperature (WTMP): 83.5 °F
Dew Point (DEWP): 78.4 °F
Heat Index (HEAT): 86.5 °F

8PM Buoy observation 260 nm South of Panama City, Florida.. Near 20' seas now.

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Posted by  
on July 9, 2005, 6:17 pm
Pressure drop of 5 MB in the last 30 minutes. Really winding up now.

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Posted by  
on July 9, 2005, 6:19 pm
URNT12 KNHC 100012 CCA
VORTEX DATA MESSAGE
A. 10/23:55:00Z
B. 26 deg 05 min N
084 deg 59 min W
C. NA mb 2606 m
D. 100 kt
E. 236 deg 003 nm
F. 327 deg 100 kt
G. 238 deg 005 nm
H. 942 mb
I. 12 C/ 3046 m
J. 19 C/ 2980 m
K. 12 C/ NA
L. CLOSED WALL
M. C10
N. 12345/07
O. 0.02 / 2 nm
P. AF308 1504A DENNIS OB 09 CCA
MAX FL WIND 100 KT SW QUAD 23:53:40 Z
SFC CENTER ABOUT 3NM ESE FROM FLT LVL CENTER
FIX TIME 09/2355Z

Latest recon 100KT winds in SW Quadrant are pretty impressive.. Could be a CAT 4 already.

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