WPAC: INVEST 97W

[Hayabusa]

12/05/07Z

WWJP27 RJTD 050600
WARNING AND SUMMARY 050600.
WARNING VALID 060600.
WARNING IS UPDATED EVERY 6 HOURS.
TROPICAL DEPRESSION 1010 HPA AT 22N 137E NORTH SLOWLY.
STATIONARY FRONT FROM 26N 168E TO 25N 160E 24N 150E 24N 140E 23N
134E.

Entangled with a stationary front.

97W.INVEST.15kts.1004mb.22N.137E

[doomhaMwx]

Not a closed circulation yet.

[Hayabusa]

ABPW10 PGTW 051730
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
/SOUTH PACIFIC OCEANS REISSUED/051730Z-060600ZDEC2020//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION (INVEST 97W) HAS PERSISTED NEAR
22.0N 137.0E, APPROXIMATELY 288 NM SOUTHWEST OF IWO TO. ANIMATED
ENHANCED INFRARED SATELLITE IMAGERY DEPICTS BUILDING DEEP CONVECTION
OVERHEAD A SMALL LOW LEVEL CIRCULATION (LLC) SITTING ON THE EDGE OF
A FRONTAL BOUNDARY. A 051235Z METOP-B ASCAT PASS REVEALS TIGHT
TROUGHING, RATHER THAN A CLOSED CIRCULATION, WITH 20 TO 30 KNOT
WINDS LIMITED TO THE NORTHEAST SIDE OF THE CUSP. 97W IS CURRENTLY IN
A MARGINAL ENVIRONMENT WITH EXCELLENT POLEWARD OUTFLOW AND WARM (28
TO 29 CELSIUS) SEA SURFACE TEMPERATURES BEING OFFSET BY UNFAVORABLE
(20 TO 30 KNOT) VERTICAL WIND SHEAR AND INTERACTION WITH THE NEARBY
FRONTAL FEATURE. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 97W WILL
PERSIST AS A TIGHT TROUGH OVER THE NEXT COUPLE DAYS AS IS DISSOLVES
INTO THE FRONT TO THE NORTH. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED
TO BE NEAR 1012 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A
SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.