Things getting more interesting. TCFA issued.
WTPN21 PHNC 282330
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
160 NM EITHER SIDE OF A LINE FROM 9.6N 94.8W TO 10.3N 101.3W
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 15 TO 20 KNOTS. METSAT
IMAGERY AT 282200Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 9.7N 95.8W. THE SYSTEM IS MOVING WESTWARD AT 08 KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 97E) PREVIOUSLY LOCATED
NEAR 10.0N 97.5W, IS NOW LOCATED NEAR 10.0N 97.5W, APPROXIMATELY
1740 NM SOUTHEAST OF SAN DIEGO, CALIFORNIA. ANIMATED MULTISPECTRAL
SATELLITE IMAGERY SHOWS AN ELONGATED LOW LEVEL CIRCULATION WITH
FLARING CONVECTION OVER THE CENTER. A 282058Z SSMI 85GHZ MICROWAVE
IMAGE DEPICTS A CIRCULATION WITH SMALL CONVECTIVE BANDS BEGINNING TO
FORM AND CONVECTION COVERING THE CENTER. A 281613Z ASCAT PASS SHOWS
A VERY BROAD, WEAK CIRCULATION WITH PRIMARILY 5-10 KNOT WINDS. THE
DISTURBANCE IS CURRENTLY LOCATED IN AN AREA OF GOOD DIVERGENCE
ALOFT, LOW TO MODERATE (10-20 KNOTS) VERTICAL WIND SHEAR, AND WARM
SEA SURFACE TEMPERATURES (28-30 CELSIUS). GLOBAL MODELS ARE IN
AGREEMENT THAT THE SYSTEM WILL TRACK TO THE WEST-NORTHWEST AND BEGIN
TO INTENSIFY IN THE NEXT SEVERAL DAYS. MAXIMUM SUSTAINED SURFACE
WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS
ESTIMATED TO BE NEAR 1010 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
292330Z.//

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