Subject: Pacific-SW: Technical Discussion (Automatic)

From: SIU Weather Processor <[email-masked]>
Date: Mon, 30 Dec 1996 07:22:55 -0600

508
WTPS32 PGTW 301500
1. TROPICAL CYCLONE 13P (FERGUS) WARNING NR 014
   01 ACTIVE TROPICAL CYCLONES IN SOUTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   301200Z6 --- 38.1S2 176.3E7
     MOVEMENT PAST SIX HOURS - 180 DEGREES AT 28 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            035 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                                   OVER WATER
                            095 NM ELSEWHERE OVER WATER
   REPEAT POSIT: 38.1S2 176.3E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   310000Z4 --- 43.3S0 177.6E1
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   EXTRATROPICAL
    ---
REMARKS:
301500Z9 POSITION 39.4S6  176.6E0
TROPICAL CYCLONE 13P (FERGUS) IS CURRENTLY MAKING
LANDFALL ON THE NORTH ISLAND OF NEW ZEALAND. CURRENT
WARNING POSITION IS BASED ON SATELLITE IMAGERY AS WELL AS
SYNOPTIC REPORTS FROM NORTH ISLAND (HICKS BAY (WMO 93196)
AND MOKOHINAU (WMO 93069)). CURRENT WIND RADII BASED ON
EXTRAPOLATION OF THE PREVIOUS WARNING WHICH IS CONSISTENT
WITH THE ABOVE MENTIONED SYNOPTIC DATA. TROPICAL CYCLONE
13P WILL COMPLETE EXTRATROPICAL TRANSITION WITHIN THE
NEXT TWELVE HOURS WHILE CONTINUING ITS SOUTHWARD
MOVEMENT. ALTHOUGH NO LONGER A TROPICAL CYCLONE THE
REMNANTS OF TC 13P WILL REMAIN A POWERFUL WEATHER SYSTEM.
THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT
TYPHOON WARNING CENTER (NAVPACMETOCCEN WEST GU). THE
SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF
REGENERATION.//

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