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JTWC03Z發佈TCFA
WTPN21 PHNC 050300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 92E)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
080 NM EITHER SIDE OF A LINE FROM 12.8N 107.4W TO 14.3N 109.6W
WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 25 KNOTS. METSAT
IMAGERY AT 050130Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 13.0N 107.6W. THE SYSTEM IS MOVING NORTHWESTWARD AT 05
KNOTS.
2. REMARKS: AN AREA OF CONVECTION (INVEST 92E) IS LOCATED NEAR 13.0N
107.6W, APPROXIMATELY 1285 NM SOUTH-SOUTHEAST OF SAN DIEGO,
CALIFORNIA. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY (EIR) AND A
050156Z SSMIS 91GHZ MICROWAVE IMAGE DEPICT AREAS OF DEEP CONVECTION
WRAPPING INTO A LOW LEVEL CIRCULATION CENTER (LLCC). ENVIRONMENTAL
ANALYSIS INDICATES FAVORABLE CONDITIONS FOR DEVELOPMENT WITH
SUPPORTING DIVERGENCE ALOFT, LOW (10-15 KTS) VERTICAL WIND SHEAR
(VWS), AND WARM (30C) SEA SURFACE TEMPERATURES. NUMERICAL MODELS ARE
IN GENERAL AGREEMENT THAT INVEST 92E WILL TRACK WEST-NORTHWESTWARD
AS IT INTENSIFIES. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT
20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR
1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
060300Z.//
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