WPAC: Tropical Depression 93W

[1900hurricane]

Another invest in the eastern portion of the basin's subtropics.

93W INVEST 170726 0000 23.0N 172.0E WPAC 15 1010

[HURAKAN]

Sheared system producing strong convection, does not appear to have a well-defined center. JMA is calling it a TD

[euro6208]

Looks better than most Atlantic systems and this one has more deep convection.

[euro6208]

AN AREA OF CONVECTION (INVEST 93W) HAS PERSISTED NEAR
23.6N 173.8E, APPROXIMATELY 478 NM NORTHEAST OF WAKE ISLAND.
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A SUBTROPICAL
SYSTEM WITH FLARING CONVECTION TO THE EAST OF THE DISTURBANCE. THE
SYSTEM IS ACCESSED AS SUBTROPICAL DUE TO THE UNIQUE NATURE OF AN
UPPER LEVEL TROUGH SITTING ABOVE THE SYSTEM WITH A LOW PRESSURE
SYSTEM LOCATED TO THE NORTHEAST. CURRENTLY, DRY AIR IS WRAPPING INTO
THE WEST SIDE OF A BROAD, ELONGATED, AND EXPOSED LOW-LEVEL
CIRCULATION CENTER (LLCC). A 261007Z ASCAT METOP-A PASS SHOWS AN
ELONGATED LOW LEVEL CIRCULATION CENTER (LLCC) WITH A PATCH OF 35-40
KNOT WIND BARBS DEPICTED 85 NM SOUTHEAST OF THE LLCC. THE
DISTURBANCE IS CURRENTLY LOCATED IN A HIGH-SHEAR ENVIRONMENT, BEING
SHEARED TO THE EAST. AT THIS TIME, THE DISTURBANCE HAS GOOD OUTFLOW
AND WARM SEA SURFACE TEMPERATURES (28-29C). GLOBAL MODELS ARE IN
AGREEMENT THAT THE DISTURBANCE WILL TRACK NORTH, SOUTH OF A
SUBTROPICAL RIDGE OVER THE NEXT SEVERAL DAYS AND SLOWLY WEAKEN. THE
SYSTEM IS NOT EXPECTED TO TRANSITION INTO A TROPICAL CYCLONE.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 35 TO 40 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.

[euro6208]

THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED
NEAR 23.6N 173.8E, IS NOW LOCATED NEAR 23.5N 173.9E, APPROXIMATELY
479 NM NORTHEAST OF WAKE ISLAND. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY SHOWS A SUBTROPICAL SYSTEM WITH FLARING CONVECTION
TO THE EAST OF THE DISTURBANCE. THE SYSTEM IS ACCESSED AS
SUBTROPICAL DUE TO THE UNIQUE NATURE OF AN UPPER LEVEL TROUGH
SITTING ABOVE THE SYSTEM WITH A LOW PRESSURE SYSTEM LOCATED TO THE
NORTHEAST. CURRENTLY, DRY AIR IS WRAPPING INTO THE WEST SIDE OF A
BROAD, ELONGATED, AND EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). A
261007Z ASCAT METOP-A PASS SHOWS AN ELONGATED LOW LEVEL CIRCULATION
CENTER (LLCC) WITH A PATCH OF 35-40 KNOT WIND BARBS DEPICTED 85 NM
SOUTHEAST OF THE LLCC. THE DISTURBANCE IS CURRENTLY LOCATED IN A
HIGH-SHEAR ENVIRONMENT, BEING SHEARED TO THE EAST. AT THIS TIME,
THE DISTURBANCE HAS GOOD OUTFLOW AND WARM SEA SURFACE TEMPERATURES
(28-29C). GLOBAL MODELS ARE IN AGREEMENT THAT THE DISTURBANCE WILL
TRACK NORTH, SOUTH OF A SUBTROPICAL RIDGE OVER THE NEXT SEVERAL
DAYS AND SLOWLY WEAKEN. THE SYSTEM IS NOT EXPECTED TO TRANSITION
INTO A TROPICAL CYCLONE. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 35 TO 40 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.

[euro6208]

THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED
NEAR 23.5N 173.9E, IS NOW LOCATED NEAR 24.2N 174.6E, APPROXIMATELY
530 NM WEST-SOUTHWEST OF WAKE ISLAND. ANIMATED MULTISPECTRAL
SATELLITE IMAGERY AND A 270227Z SSMIS 85GHZ MICROWAVE IMAGE SHOWS A
MOSTLY EXPOSED SUBTROPICAL SYSTEM WITH FLARING CONVECTION TO THE
EAST OF THE DISTURBANCE. THE SYSTEM IS ASSESSED AS SUBTROPICAL DUE
TO THE UNIQUE NATURE OF AN UPPER LEVEL TROUGH SITTING ABOVE THE
SYSTEM WITH A LOW PRESSURE SYSTEM LOCATED TO THE NORTH.
CURRENTLY, DRY AIR IS WRAPPING INTO THE WEST SIDE OF A BROAD,
ELONGATED, AND EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). A
262232Z ASCAT PASS SHOWS A WELL DEFINED LOW LEVEL CIRCULATION CENTER
(LLCC) WITH A PATCH OF 25-30 KNOT WIND BARBS DEPICTED SOUTHEAST OF
THE LLCC. THE DISTURBANCE IS CURRENTLY LOCATED IN A HIGH-SHEAR
ENVIRONMENT (20-30 KNOTS), BEING SHEARED TO THE EAST. AT THIS TIME,
THE DISTURBANCE HAS GOOD OUTFLOW AND WARM SEA SURFACE TEMPERATURES
(28-29C). GLOBAL MODELS ARE IN AGREEMENT THAT THE DISTURBANCE WILL
TRACK NORTH, SOUTH OF A MIDLATITUDE RIDGE OVER THE NEXT SEVERAL DAYS
AND SLOWLY WEAKEN. THE SYSTEM IS NOT EXPECTED TO TRANSITION INTO A
TROPICAL CYCLONE. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT
25 TO 30 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 REMAINS LOW.