TROPICAL DEPRESSION 1004 HPA
AT 11.4N 133.1E SEA EAST OF PHILIPPINES MOVING WNW SLOWLY.
POSITION POOR.
MAX WINDS 30 KNOTS NEAR CENTER.
WARNING.
(2) AN AREA OF CONVECTION (INVEST 92W) IS LOCATED NEAR
11.8N 133.6E, APPROXIMATELY 277 NM NORTH-NORTHWEST OF PALAU. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY DEPICTS AN ELONGATED AREA OF TURNING
WITH PERSISTENT CONVECTION OBSCURING THE CENTER. FORMATIVE CLOUD
BANDS WRAP TOWARDS THE CENTER OF THE SYSTEM FROM THE NORTHWEST. BOTH
POLEWARD AND EQUATORWARD OUTFLOW IS MADE EVIDENT BY THE CIRRUS
FILAMENTS FLOWING IN EITHER DIRECTION. UPPER-LEVEL ANALYSIS INDICATES
92W IS LOCATED IN A FAVORABLE ENVIRONMENT WITH LOW VERTICAL WIND
SHEAR (10-15KT), POLEWARD AND EQUATORWARD OUTFLOW, AND WARM SEA
SURFACE TEMPERATURES (27-28C). GLOBAL MODELS INDICATE A NORTHWESTWARD
TRACK WITH ROBUST DEVELOPMENT OVER THE NEXT 48 HOURS. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 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 LOW.
(2) AN AREA OF CONVECTION (INVEST 92W) PREVIOUSLY LOCATED NEAR
11.8N 133.6E IS NOW LOCATED NEAR 12.5N 132.7E, APPROXIMATELY 527 NM
NORTHEAST OF DAVAO. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS
A BROAD, WEAKLY DEFINED LOW-LEVEL CIRCULATION (LLC) WITH PERSISTENT
CONVECTION TO THE NORTHWEST. A 190416Z GMI 89GHZ COLOR COMPOSITE
MICROWAVE IMAGE SHOWS CONVECTION CONSOLIDATING OVER THE WESTERN SEMI-
CIRCLE WITH A PARTIALLY EXPOSED LLC. UPPER-LEVEL ANALYSIS INDICATES
92W IS LOCATED IN A FAVORABLE ENVIRONMENT WITH LOW VERTICAL WIND
SHEAR (10-15KT), GOOD POLEWARD AND EQUATORWARD OUTFLOW, AND WARM SSTS
(30C). GLOBAL MODELS INDICATE THAT 92W WILL CONTINUE TO MAINTAIN A
NORTHWESTWARD TRACK AS IT INTENSIFIES QUICKLY OVER THE NEXT 48 HOURS.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 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 UPGRADED TO MEDIUM.