Subject: Pacific-NW: 1. Tropical Storm Mort (31w) Warning Nr 014a Amended And

From: SIU Weather Processor <[email-masked]>
Date: Thu, 13 Nov 1997 21:03:35 -0600

421
WTPN31 PGTW 140300 AMD
1. TROPICAL STORM MORT (31W) WARNING NR 014A AMENDED AND
RELOCATED
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   140000Z5 --- 13.8N2 129.0E2
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   REPEAT POSIT: 13.8N2 129.0E2
    ---
   FORECASTS:
   12 HRS, VALID AT:
   141200Z8 --- 14.1N6 127.0E0
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 24 HR POSIT: 285 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   150000Z6 --- 14.4N9 125.6E4
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 36 HR POSIT: 295 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   151200Z9 --- 15.0N6 124.3E0
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER
WATER
   VECTOR TO 48 HR POSIT: 305 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   160000Z7 --- 15.8N4 123.2E8
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER
WATER
   VECTOR TO 72 HR POSIT: 315 DEG/ 04 KTS
    ---
   72 HRS, VALID AT:
   170000Z8 --- 17.0N8 122.0E5
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
140300Z8 POSITION 13.9N3  128.5E6
TROPICAL STORM MORT (31W) IS MOVING WESTWARD AT 10 KNOTS.
THE WARNING POSITION WAS BASED ON 140030Z8 VISIBLE
SATELLITE IMAGERY WHICH CLEARLY SHOWED A FULLY EXPOSED
LOW LEVEL CIRCULATION CENTER.  THIS WAS THE BASIS FOR OUR
RELOCATION.  OUR WARNING INTENSITY IS BASED ON A
SATELLITE INTENSITY ESTIMATE OF 35 KNOTS.  MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 140000Z IS 18 FEET.  REFER TO
WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT
WARNINGS AT 140900Z4 (TG 140753Z0), 141500Z1 (DTG
141353Z7), 142100Z8 (DTG 141953Z3) AND 150300Z9 (DTG
150153Z5).  JUSTIFICATION FOR AMENDMENT: TO CHANGE THE
MAXIMUM SIGNIFICANT WAVE HEIGHT.//

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