Hurricane and Tropical Cyclones


Tropical Weather Discussion


abpw10 pgtw 240600
msgid/genadmin/joint typhoon wrncen Pearl Harbor hi//
subj/significant tropical weather advisory for the western and
/South Pacific oceans/240600z-250600zapr2014//
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 7.5n 154.9e 
is now located near 7.8n 154.3e, approximately 140 nm east-northeast 
of Chuuk. Animated multispectral satellite imagery (msi) depicts an 
ill-defined, exposed low-level circulation center (LLCC) with 
limited bursts of associated deep convection. Msi also shows a 
rapidly weakening mid-level circulation center near 9.1n 153.0e, 
which is displaced well west of the actual LLCC. A 232354z metop-b 
image depicts a disorganized area of deep convection sheared west of 
the poorly-defined, weak LLCC. A 232259z ascat image indicates 10 to 
15 knot winds over the western semi-Circle with an inverted trough 
extending northward into an extensive band of 15 to 20 knot easterly 
winds. Upper-level analysis indicates the system is south of the 
ridge axis in an area of light (05-10 knot) easterly vertical wind 
shear and fair poleward outflow. Maximum sustained surface winds are 
estimated at 10 to 15 knots. Minimum sea level pressure is estimated 
to be near 1006 mb. The potential for the development of a 
significant tropical cyclone within the next 24 hours remains low.
      (2) no other suspect areas.
2. South Pacific area (west coast of South America to 135 east):
   a. Tropical cyclone summary: none.
   B. Tropical disturbance summary: none.//

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