Tropical Weather Discussion


abpw10 pgtw 080600
msgid/genadmin/joint typhoon wrncen Pearl Harbor hi//
subj/significant tropical weather advisory for the western and
/South Pacific oceans/080600z-090600zoct2015//
ref/a/msg/joint typhoon wrncen Pearl Harbor hi/072051zoct2015//
ampn/ref a is a tropical cyclone warning.//
tropical cyclone warning.//
1. Western North Pacific area (180 to Malay Peninsula):
   a. Tropical cyclone summary:
      (1) at 071800z, tropical storm 23w (Choi-Wan) was located near
37.6n 150.4e, approximately 460 nm east-southeast of Misawa, Japan,
and had tracked northward at 38 knots over the past six hours.
Maximum sustained surface winds were estimated at 60 kts gusting to
75 kts. See ref a (wtpn32 pgtw 072100) for the final warning on this
      (2) no other tropical cyclones.
   B. Tropical disturbance summary: none.
      (1) an area of convection (remnants of 08c) has persisted near
15.4n 172.2e, approximately 390 nm southeast of Wake Island.
Animated multispectral satellite imagery shows weak formative
banding wrapping into a broad and ill-defined low level circulation.
A 080258z AMSU-b microwave image shows a shallow system with a small
area of deep convection to the north of the circulation. Upper level
analysis indicates the disturbance is in an area of low vertical
wind shear; however, a trough to the northwest is causing subsidence
and limited outflow. Numeric models do not indicate any significant
development of this system. Maximum sustained surface winds are
estimated at 10 to 15 knots. Minimum sea level pressure is estimated
near 1008 mb. The potential for the development of a significant
tropical cyclone in the next 24 hours is 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.//

View All Hurricanes and Tropical Cyclones

Storm Coverage

Dr. Jeff Masters' Blog
By Dr. Jeff Masters, 11:45 AM EDT on October 08, 2015
Director of Meteorology, Weather Underground
Alaska and British Columbia are on alert to receive a very unusual dose of tropical weather: the remains of Hurricane Oho, which are on track to hurtle into the Alaska Panhandle on Friday evening. Oho completed the trans [...]