Image Department Meteorology
Meteorology_Home Weather_Server News/Seminars
People
Research
Academics Application Contact_Us

Hawaiian_Weather
US_Mainland_Weather
Tropical_Weather
Satellite_Imagery
Radar_Imagery
Marine
Numerical_Models
LAPS
Forecasts
Observations
Archive
Links Disclaimer
Space
SOEST_Home
University_of_Hawaii_Home

 315 
 WTPA41 PHFO 082105
 TCDCP1
 
 TROPICAL DEPRESSION KIKA DISCUSSION NUMBER   8
 NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012008
 1100 AM HST FRI AUG 08 2008
 
 THE FIRST VISIBLE SATELLITE IMAGERY OF THE MORNING REVEALED AN
 EXPOSED LOW LEVEL CIRCULATION CENTER WELL SOUTH OF EARLIER FIXES.
 WE RELOCATED THE SYSTEM BASED ON THE VISIBLE DATA. THE SATELLITE
 FIXES WERE WIDELY SCATTERED IN LOCATION. DVORAK T-NUMBERS ALSO
 VARIED CONSIDERABLE..FROM 1.0 TO 2.5...BUT THE DVORAK RULES KEPT
 THE CURRENT INTENSITIES MORE CONSISTENT. PHFO HAD THE SYSTEM AT
 9.8N 153.0W WITH A CURRENT INTENSITY OF 2.5...JTWC HAD THE SYSTEM
 AT 10.0N 154.0W WITH A CI OF 2.0 AND SAB HAD THE SYSTEM AT 12.0N
 154.3N WITH A CI OF 2.0. THE DIFFICULTY IN LOCATING THE CENTER IS
 AN INDICATION THAT KIKA IS NOT A WELL ORGANIZED SYSTEM. WE HAVE
 DROPPED THE INTENSITY TO 30 KT AND DOWNGRADED KIKA TO A DEPRESSION.
 
 INITIAL MOTION HAS BEEN PROBLEMATICAL DUE TO THE RELOCATION. BASED
 ON MICROWAVE IMAGERY BETWEEN 08/0400UTC AND 08/1600UTC IT APPEARS
 THAT KIKA TOOK A SHARP SOUTHWARD TURN BETWEEN 0600 AND 1200UTC.
 SINCE THEN IT LOOKS AS IF KIKA HAS STARTED TO MOVE SLIGHTLY NORTH
 OF WEST AGAIN SO OUR INITIAL MOTION HAS BEEN SET AT 280/12KT. DEEP
 RIDGING NORTH OF THE DEPRESSION WILL KEEP KIKA MOVING SLIGHTLY
 NORTH OF WEST. THE TRACK HAS BEEN SHIFTED A BIT DUE TO THE
 RELOCATION OF THE 08/1800UTC POSITION AND FORWARD SPEED HAS BEEN
 INCREASED SLIGHTLY IN LINE WITH MODEL GUIDANCE.
 
 INTENSITY GUIDANCE HAS CHANGED A BIT...PARTLY BECAUSE THE TRACK HAS
 BEEN SHIFTED FARTHER SOUTH. THE CURRENT TRACK KEEPS KIKA OVER
 SLIGHTLY WARMER WATER AND THE INTENSITY GUIDANCE SHOWS SOMEWHAT
 WEAKER WESTERLY SHEAR DEVELOPING AFTER 48 HOURS. HOWEVER...KIKA IS
 SO SMALL AND POORLY ORGANIZED THAT INTENSIFICATION SEEMS UNLIKELY
 EVEN IF THE ENVIRONMENT IS MORE FAVORABLE. SO WE HAVE KEPT THE
 INTENSITY AT 30 KT THROUGH 72 HOURS WITH THE SYSTEM WEAKENING
 FURTHER AFTER THAT AS SHEAR INCREASES.
  
  
 FORECAST POSITIONS AND MAX WINDS
  
 INITIAL      08/2100Z  9.7N 154.0W    30 KT
  12HR VT     09/0600Z  9.8N 155.7W    30 KT
  24HR VT     09/1800Z 10.0N 158.0W    30 KT
  36HR VT     10/0600Z 10.3N 160.2W    30 KT
  48HR VT     10/1800Z 10.8N 162.6W    30 KT
  72HR VT     11/1800Z 11.6N 167.8W    30 KT
  96HR VT     12/1800Z 12.1N 173.6W    25 KT
 120HR VT     13/1800Z 13.0N 180.0E    20 KT
  
 $$
 FORECASTER DONALDSON
  
 
 
 
 
Return to the Tropical Systems Page for KIKA

Back to main Tropical Weather page




This page is maintained voluntarily by the MKWC and the UHMET faculty, staff, and students.
It was last modified on: Thu, Jul 23 2020 - 2003 UTC
Send comments to: Ryan Lyman