Subject: Pacific-NW: Subj/significant Tropical Weather Advisory For The

From: SIU Weather Processor <[email-masked]>
Date: Sat, 22 Nov 1997 00:19:55 -0600

551
ABPW10 PGTW 220600
MSGID/GENADMIN/NAVPACMETOCCEN WEST GU//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE
WESTERN PACIFIC OCEAN/220600Z/230600Z NOV 97//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
 (1) THE AREA OF CONVECTION PREVIOUSLY LOCATED
NEAR 24N6 161E8 IS NOW LOCATED NEAR 25N7 160E7. ANIMATED
WATER VAPOR IMAGERY INDICATES A WEAK UPPER-LEVEL ANTI-
CYCLONE HAS PROVIDED SUPPORT FOR CONVECTION NEAR THE LOW-
LEVEL CENTER. VISIBLE SATELLITE IMAGERY SHOWS A BROAD,
EXPOSED SURFACE CIRCULATION IS LOCATED APPROXIMATELY 60
NM FROM THE MAIN CONVECTION. MAXIMUM SUSTAINED WINDS ARE
ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE
IS ESTIMATED TO BE 1015 MB. THE POTENTIAL FOR SIGNIFICANT
TROPICAL CYCLONE DEVELOPMENT WITHIN THE NEXT 24 HOURS IS
POOR.
 (2) NO OTHER SUSPECT AREAS.
2. WESTERN SOUTH PACIFIC AREA (180 WEST TO 135 EAST):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
 (1) THE AREA OF CONVECTION PREVIOUSLY LOCATED
NEAR 08S8 166E3 HAS REMAINED QUASI-STATIONARY OVER THE
PAST 6 HOURS. ANIMATED VISUAL SATELLITE IMAGERY SHOWS A
BROAD LOW-LEVEL CIRCULATION NEAR AN AREA OF UNORGANIZED
CONVECTION. WATER VAPOR DERIVED WINDS INDICATE AN AREA OF
UPPER-LEVEL DIVERGENCE AND LOW VERTICAL WIND SHEAR
ASSOCIATED WITH THIS SYSTEM. SURROUNDING SYNOPTIC DATA
SHOWS A SLIGHT PRESSURE FALL, HOWEVER, CONVECTION HAS
BECOME MORE DISORGANIZED OVER THE PAST 6 HOURS. MAXIMUM
SUSTAINED WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM
SEA LEVEL PRESSURE IS ESTIMATED TO BE 1005 MB. THE
POTENTIAL FOR SIGNIFICANT TROPICAL CYCLONE DEVELOPMENT
WITHIN THE NEXT 24 HOURS IS POOR.
 (2) NO OTHER SUSPECT AREAS.
FORECAST TEAM: HILDEBRAND/HATFIELD/MCCULLOCH/HALL/JONES//

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