051
WTPA42 PHFO 262040
TCDCP2
TROPICAL DEPRESSION NEKI DISCUSSION NUMBER 33
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI CP032009
1100 AM HST MON OCT 26 2009
THE FIRST VISIBLE IMAGES OF THE MORNING REVEALED AN ELLIPTICAL LLCC
THAT IS STARTING TO ACCELERATE NORTHWARD. THE REMAINING DEEP
CONVECTION IS MORE THAN 3/4 OF A DEGREE TO THE SOUTH OF THE EXPOSED
LOW LEVEL CENTER. THE 1700 UTC UW/CIMSS SATCON INTENSITY ESTIMATE
WAS 29 KNOTS...AND THE AVERAGE OF THE FINAL T AND CURRENT INTENSITY
NUMBERS FROM PHFO...SAB...AND JTWC WAS 2.2. THUS THE INITIAL
INTENSITY IS BEING LOWERED TO 30 KT FOR THIS ADVISORY.
NEKI/S TIME AS A TROPICAL CYCLONE IS WINDING DOWN. THE CYCLONE IS
CURRENTLY OVER SUB-27C SEA SURFACE TEMPERATURES AND IS APPROACHING
A SHARP GRADIENT IN SST. MODERATE SOUTHWEST SHEAR IS LIKELY GOING
TO INCREASE AS THE CYCLONE CONTINUES NORTH. FINALLY...A STRONG
AUTUMN COLD FRONT IS APPROACHING NEKI FROM THE WEST. NEKI WILL
CONTINUE TO PICK UP SPEED IN THE LOW-LEVEL SOUTHERLY FLOW AHEAD OF
THIS FRONT AND IS EXPECTED TO BECOME A REMNANT LOW OR DISSIPATE
WITHIN 24 HOURS.
FORECAST POSITIONS AND MAX WINDS
INITIAL 26/2100Z 28.1N 165.7W 30 KT
12HR VT 27/0600Z 30.7N 165.6W 30 KT...DISSIPATING
24HR VT 27/1800Z 35.7N 163.8W 25 KT...REMNANT LOW
36HR VT 28/0600Z...REMNANT LOW
$$
FORECASTER R BALLARD
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