Tropical Weather Discussion

000 

abpw10 pgtw 212200
msgid/genadmin/joint typhoon wrncen Pearl Harbor hi//
subj/significant tropical weather advisory for the western and
South Pacific oceans reissued/212200z-220600zjul2017//
ref/a/msg/joint typhoon wrncen Pearl Harbor hi/212100zjul2017//
ref/b/msg/joint typhoon wrncen Pearl Harbor hi/212100zjul2017//
ref/c/msg/joint typhoon wrncen Pearl Harbor hi/212100zjul2017//
ref/d/msg/joint typhoon wrncen Pearl Harbor hi/212100zjul2017//
narr/refs a, b, c and d are tropical cyclone warnings.//
Rmks/
1. Western North Pacific area (180 to Malay Peninsula):
   a. Tropical cyclone summary:
      (1) at 212100z, tropical storm 07w (Noru) was located 
approximately 825 nm east-southeast of yokosuka, Japan, and had 
tracked west-northwestward at 10 knots over the past six hours. Max 
sustained surface winds were estimated at 35 knots and gusting to 45 
knots. See ref a (wtpn31 pgtw 212100) for further details.      
      (2) at 212100z, tropical depression 08w (eight) was located 
approximately 268 nm south-southwest of Hong Kong, has tracked 
westward at 05 knots over the past six hours. Max sustained surface 
winds were estimated at 25 knots and gusting to 35 knots. See ref b 
(wtpn32 pgtw 212100) for further details.
      (3) at 212100z, tropical storm 09w (kulap) was located 
approximately 807 nm north-northeast of Wake Island and had tracked 
northwestward at 24 knots over the past six hours. Max sustained 
surface winds were estimated at 35 knots and gusting to 45 knots. 
See ref c (wtpn33 pgtw 212100) for further details.
      (4) at 212100z, tropical depression 10w (ten) was located near 
19.9n 121.7e, located approximately 308 nm north-northeast of 
Manila, Philippines has tracked west-northwestward at 11 knots over 
the past six hours. Max sustained surface winds were estimated at 
025 knots gusting to 035 knots. See ref d (wtpn34 pgtw 212100) for 
further details.
      (5) no other tropical cyclones.
   B. Tropical disturbance summary:
      (1) the area of convection (invest 98w) previously located 
near 25.5n 177.2e is now the subject of a tropical cyclone warning. 
See para. 1.A.(4) for further details.
      (2) an area of convection (invest 99w) has persisted near 7.5n
134.0e, approximately 40 nm west of Palau. Animated 
infrared satellite imagery depicts a partially exposed and 
broad low-level circulation center (LLCC) with persistent 
convection. Upper-level analysis reveals a favorable environment 
with good diffluence aloft and low (5-10kt) vertical wind shear. 
NOAA aoml SST analysis confirms that the system remains over very 
favorable (31c) SSTs. Global models indicate steady development 
within the next 48 hours as the system tracks northwestward along 
the eastern coast of the Philippines. Maximum sustained surface 
winds are estimated at 15 to 20 knots. Minimum sea level pressure is 
estimated to be near 1007 mb. The potential for the development of a 
significant tropical cyclone within the next 24 hours remains 
medium. 
      (3) 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.
3. Justification for reissue: upgraded area in paragraph 1.B.(1) to 
warning status and updated the tropical cyclone warning summary 
section.//
Nnnn

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