NW Pacific: Tropical Depression (17N 106E) - JTWC TD-17W

[WindRunner]

TD in the WPAC, JMA expects it to gain TS status within 24 hours, JTWC within 12 hours. Seems likely as it has an unusually low pressure for a TD, even a WPAC one. Will be making landfall in central Vietnam shortly.

WWJP25 RJTD 231800
WARNING AND SUMMARY 231800.
WARNING VALID 241800.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL DEPRESSION 998 HPA
AT 15.2N 112.0E SOUTH CHINA SEA ALMOST STATIONARY.
POSITION POOR.
MAX WINDS 30 KNOTS NEAR CENTER.
EXPECTED MAX WINDS 35 KNOTS NEAR CENTER FOR NEXT 24 HOURS.
FORECAST POSITION FOR 241800UTC AT 17.1N 108.6E WITH 150 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
GALE WARNING.
DEVELOPING LOW 1008 HPA
AT 51N 146E EASTNORTHEAST OF SAKHALIN MOVING EAST 25 KNOTS.
EXPECTED WINDS 30 TO 35 KNOTS WITHIN 400 MILES OF LOW
FOR NEXT 12 HOURS.
ANOTHER LOW 1010 HPA AT 57N 148E
MOVING SOUTHEAST SLOWLY.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK BOHAI.
GALE WARNING.
EASTERLY TO NORTHEASTERLY WINDS 30 TO 35 KNOTS PREVAILING OVER WATERS
BOUNDED BY 34N 137E 31N 138E 36N 151E 39N 149E 34N 137E.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 45N 150E 56N 163E
51N 180E 38N 180E 35N 164E 45N 150E.
SUMMARY.
LOW 1000 HPA AT 51N 170E SE 15 KT.
LOW 1000 HPA AT 45N 178E NE 25 KT.
LOW PRESSURE AREA 1008 HPA NEAR 13N 131E ALMOST STATIONARY.
HIGH 1020 HPA AT 43N 152E EAST 20 KT.
HIGH 1020 HPA AT 41N 129E ESE SLOWLY.
OCCLUDED FRONT FROM 45N 178E TO 44N 179W 43N 177W.
WARM FRONT FROM 43N 177W TO 41N 173W 38N 169W.
COLD FRONT FROM 43N 177W TO 40N 178E 36N 167E.
STATIONARY FRONT FROM 36N 167E TO 35N 158E 36N 150E 35N 142E.
REMARKS.
TYPHOON 0614 YAGI (0614) 955 HPA AT 32.1N 145.1E : SEE TROPICAL
CYCLONE WARNING.

JAPAN METEOROLOGICAL AGENCY.=

[P.K.]

The TD has been there since 1200 GMT on Friday, and in that time has fallen from 1004hPa to its current 996hPa.

RSMC TROPICAL CYCLONE ADVISORY
NAME TD
ANALYSIS
PSTN 232100UTC 15.4N 111.8E POOR
MOVE NW SLOWLY
PRES 996HPA
MXWD 030KT
FORECAST
24HF 242100UTC 17.4N 107.9E 150NM 70%
MOVE WNW 10KT
PRES 994HPA
MXWD 035KT =

[P.K.]

RSMC TROPICAL CYCLONE ADVISORY
NAME TD
ANALYSIS
PSTN 240900UTC 16.2N 109.8E POOR
MOVE WSW 10KT
PRES 996HPA
MXWD 030KT
FORECAST
24HF 250900UTC 17.0N 107.2E 150NM 70%
MOVE W 07KT
PRES 994HPA
MXWD 035KT =

[WindRunner]

WWJP25 RJTD 250600
WARNING AND SUMMARY 250600.
WARNING VALID 260600.
WARNING IS UPDATED EVERY 6 HOURS.
STORM WARNING.
DEVELOPING LOW FORMER SEVERE TROPICAL STORM 0614 YAGI (0614) 988 HPA
AT 42N 164E FAR OFF EAST OF JAPAN MOVING EASTNORTHEAST 35 KNOTS.
WARM FRONT FROM 42N 164E TO 41N 167E 37N 172E.
COLD FRONT FROM 42N 164E TO 40N 165E 35N 161E 32N 155E.
WINDS 30 TO 50 KNOTS WITHIN 400 MILES OF LOW.
FORECAST POSITION FOR 260600UTC AT 49N 172E WITH UNCERTAINTY OF 150
MILES RADIUS.
GALE WARNING.
DEVELOPING LOW 1006 HPA
AT 29N 139E WESTNORTHWEST OF CHICHIJIMA MOVING NORTHEAST 10 KNOTS.
WARM FRONT FROM 29N 139E TO 30N 140E 31N 144E.
COLD FRONT FROM 29N 139E TO 27N 138E 25N 135E.
WINDS 30 TO 35 KNOTS WITHIN 300 MILES OF LOW.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER SEA OF OKHOTSK NORTHERN PART OF SEA
OF JAPAN MIDDLE OF SEA OF JAPAN.
WARNING.
DENSE FOG OBSERVED LOCALLY OVER WATERS BOUNDED BY 45N 148E 51N 157E
60N 165E 60N 180E 40N 180E 44N 160E 45N 148E.
SUMMARY.
LOW 1002 HPA AT 48N 153E SE 15 KT.
TROPICAL DEPRESSION 1004 HPA AT 17N 106E WEST SLOWLY.
TROPICAL DEPRESSION 1006 HPA AT 12N 129E WEST SLOWLY.
LOW PRESSURE AREA 1006 HPA NEAR 10N 173E WEST 15 KT.
HIGH 1022 HPA AT 46N 139E SSE 25 KT.
HIGH 1020 HPA AT 37N 178E SE 30 KT.
HIGH 1020 HPA AT 55N 180E ESE 15 KT.
STATIONARY FRONT FROM 37N 172E TO 35N 174E 33N 177E 33N 180E.

JAPAN METEOROLOGICAL AGENCY.=


Nothing much out of this one, just a soaker for Vietnam.