WPAC: Ex-Tropical Depression (99W)

[supercane]

WTPQ20 RJTD 271800
RSMC TROPICAL CYCLONE ADVISORY
NAME TD
ANALYSIS
PSTN 271800UTC 29.8N 126.3E POOR
MOVE NNW 20KT
PRES 1004HPA
MXWD 030KT
GUST 045KT
FORECAST
24HF 281800UTC 37.3N 123.6E 120NM 70%
MOVE NNW 20KT
PRES 998HPA
MXWD 035KT
GUST 050KT =

[supercane]

WTPQ20 RJTD 280300
RSMC TROPICAL CYCLONE ADVISORY
NAME TD
ANALYSIS
PSTN 280300UTC 34.9N 123.8E FAIR
MOVE N 20KT
PRES 1004HPA
MXWD 030KT
GUST 045KT
FORECAST
24HF 290300UTC 41.0N 124.6E 120NM 70%
MOVE N 15KT
PRES 998HPA
MXWD 035KT
GUST 050KT =

[supercane]

Looks extratropical and don't see this becoming a TS. Imagery from KMA:

[supercane]

For a system described as at best transitioning to extratropical status, low winds:

[Chacor]

No 0600 bulletin from JMA. This thing isn't making it to a TS.

[senorpepr]

Still being carried as a TD:


WWJP25 RJTD 280600
WARNING AND SUMMARY 280600.
WARNING VALID 290600.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL DEPRESSION 1002 HPA
AT 18.1N 117.2E NORTHERN PART OF SOUTH CHINA SEA MOVING NORTH 09
KNOTS.
POSITION FAIR.
MAX WINDS 30 KNOTS NEAR CENTER.
EXPECTED MAX WINDS 35 KNOTS NEAR CENTER FOR NEXT 24 HOURS.
FORECAST POSITION FOR 290600UTC AT 20.6N 116.9E WITH 120 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
WARNING.
TROPICAL DEPRESSION 1004 HPA
AT 35.9N 124.3E YELLOW SEA MOVING NORTH 20 KNOTS.
POSITION FAIR.
MAX WINDS 30 KNOTS.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK SEA OF JAPAN.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 38N 141E 42N 142E
47N 152E 55N 162E 60N 164E 60N 180E 46N 180E 40N 160E 36N 150E 38N
141E.
SUMMARY.
LOW 1012 HPA AT 39N 174E EAST 15 KT.
LOW PRESSURE AREA 1008 HPA NEAR 15N 138E NW 15 KT.
HIGH 1018 HPA AT 32N 146E WEST SLOWLY.
HIGH 1018 HPA AT 41N 151E ESE SLOWLY.

JAPAN METEOROLOGICAL AGENCY.=

[senorpepr]

TPPN11 PGTW 280905

A. TROPICAL DISTURBANCE 99W (N OF OKINAWA)

B. 28/0832Z

C. XX.X

D. XXX.X

E. N/A/MTSAT

F. N/A

G. IR/EIR/VIS/MSI

H. REMARKS: POSITION OF LOW LEVEL CIRCULATION CENTER COULD NOT
BE FOUND. THIS WILL BE THE FINAL FIX ISSUED BY JTWC ON THIS
AREA. THE AREA WILL CONTINUE TO BE MONITORED FOR POSSIBLE
REDEVELOPMENT.

I. ADDITIONAL POSITIONS: NONE


UEHARA

[KWT]

Well looks like the ECM made a half decent call with trying to develop a weak system near Korea around this time.

[Chacor]

Don't know whether this is a typo or a massive relocation. I suspect it's the former; 16.5N 118.7E was around where 07W developed; yesterday's STWA had this near 23.2N 130.4E.

THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 16.5N
118.7E, IS NOW LOCATED NEAR 28.8N 127.7E, APPROXIMATELY 125 NM NORTH
OF OKINAWA. ANIMATED INFRARED SATELLITE IMAGERY SHOWS CONVECTION HAS
MOSTLY DISPERSED AND THE LOW LEVEL CIRCULATION HAS BECOME BROAD AND
DIFFICULT TO LOCATE. ENVIRONMENTAL ANALYSIS SHOWS THE SYSTEM IS
GETTING ABSORBED INTO THE TAIL END OF A COLD FRONT EXTENDING FROM A
LOW IN THE YELLOW SEA. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED
AT 12 TO 17 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR
1007 MB. DUE TO THE SYSTEM LOSING ITS TROPICAL CHARACTERISTICS AND
THE INFLUX OF COLDER WINDS ASSOCIATED WITH THE AFOREMENTIONED FRONT,
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS DOWNGRADED TO POOR.

[supercane]

JMA 12Z analysis:
WARNING.
TROPICAL DEPRESSION 1006 HPA
AT 37.2N 123.9E YELLOW SEA MOVING NORTH 13 KNOTS.
POSITION FAIR.
MAX WINDS 30 KNOTS.



Find the purportedly tropical system:

[KWT]

Looks like there is nothing really left to this area so probably isn't going to develop any further now.

[supercane]

JMA 18Z analysis:
WARNING.
TROPICAL DEPRESSION 1006 HPA
AT 38.5N 123.5E YELLOW SEA MOVING NORTH 13 KNOTS.
POSITION FAIR.
MAX WINDS 30 KNOTS.

[supercane]

00Z JMA analysis just calls this a low:
SUMMARY.
LOW 1006 HPA AT 41N 125E NNE 20 KT

That's all she wrote.