Closed eyewall
Posted by Chris in Tampa on 7/3/2014, 10:21 pm
The most recent vortex described the eye as "closed". The previous was open to the west. Pressure now 976mb. (Says 977mb here, but the surface wind was 9 knots, which you can kind of take about 1 mb off for each 10 knots of wind as a rough estimate)

URNT12 KNHC 040204 CCA
VORTEX DATA MESSAGE   AL012014
A. 04/01:42:10Z
B. 34 deg 21 min N
 076 deg 57 min W
C. 700 mb 2886 m
D. 61 kt
E. 058 deg 20 nm
F. 154 deg 76 kt
G. 060 deg 24 nm
H. 977 mb
I. 8 C / 3051 m
J. 13 C / 3047 m
K. -12 C / NA
L. CLOSED
M. C20
N. 12345 / 7
O. 0.02 / 1 nm
P. AF304 1401A ARTHUR             OB 09 CCA
MAX FL WIND 76 KT 060 / 24 NM 01:35:00Z
CNTR DROPSONDE SFC WIND 265/09 KT
;

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Now a category two hurricane - Chris in Tampa, 7/3/2014, 9:08 pm
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