** WTPS11 NFFN 101200 *** Tropical Disturbance Advisory Number A2 issued from RSMC NADI Feb 10/1359 UTC 2006 UTC. Tropical depression 12F [1000 HPa] centre was located near 14.1S 176.0W at 101200 UTC slow moving but expected to turn southeast later. Position poor and based on MTSTAT/EIR with animation and peripheral surface reports. SST in the area is about 29-30C. Deep convention has now become detached and is lies just north of LLCC. Convective tops continues cooling. Primary band still remains to the northeast of system centre. 12F lies just south of upper [250 HPa] outflow, in a good diffluent region. Dvorak analysis based on .30 on log10 spiral wrap gives DT=PT=MET=2.0. YIELDS. 2.0/2.0/D1.0/24hrs. PAT=MET=2.0. CIMMS indicates that the environmental shear is about 20 knots over the system at this stage but decreasing tendency in the path of 12F. The system is expected to be steered by the deep northwest wind flow. Most global models are developing the system near 20 South, perhaps merging with 12F with 11F located to the far south. Potential for 12F to develop into a tropical cyclone in the next 24 hours is moderate to high. The next Tropical Disturbance Advisory on TD 12F will be issued around 102000 UTC. ** WTPS11 NFFN 101200 *** Tropical Disturbance Advisory Number A2 issued from RSMC NADI Feb 10/1359 UTC 2006 UTC. Tropical depression 12F [1000 HPa] centre was located near 14.1S 176.0W at 101200 UTC slow moving but expected to turn southeast later. Position poor and based on MTSTAT/EIR with animation and peripheral surface reports. SST in the area is about 29-30C. Deep convention has now become detached and is lies just north of LLCC. Convective tops continues cooling. Primary band still remains to the northeast of system centre. 12F lies just south of upper [250 HPa] outflow, in a good diffluent region. Dvorak analysis based on .30 on log10 spiral wrap gives DT=PT=MET=2.0. YIELDS. 2.0/2.0/D1.0/24hrs. PAT=MET=2.0. CIMMS indicates that the environmental shear is about 20 knots over the system at this stage but decreasing tendency in the path of 12F. The system is expected to be steered by the deep northwest wind flow. Most global models are developing the system near 20 South, perhaps merging with 12F with 11F located to the far south. Potential for 12F to develop into a tropical cyclone in the next 24 hours is moderate to high. The next Tropical Disturbance Advisory on TD 12F will be issued around 102000 UTC. ** WTPS11 NFFN 101200 *** TROPICAL DISTURBANCE ADVISORY NUMBER A2 ISSUED FROM RSMC NADI FEB 10/1359 UTC 2006 UTC. TROPICAL DEPRESSION 12F [1000 HPA] CENTRE WAS LOCATED NEAR 14.1S 176.0W AT 101200 UTC SLOW MOVING BUT EXPECTED TO TURN SOUTHEAST LATER. POSITION POOR AND BASED ON MTSTAT/EIR WITH ANIMATION AND PERIPHERAL SURFACE REPORTS. SST IN THE AREA IS ABOUT 29-30C. DEEP CONVENTION HAS NOW BECOME DETACHED AND IS LIES JUST NORTH OF LLCC. CONVECTIVE TOPS CONTINUES COOLING. PRIMARY BAND STILL REMAINS TO THE NORTHEAST OF SYSTEM CENTRE. 12F LIES JUST SOUTH OF UPPER [250 HPA] OUTFLOW, IN A GOOD DIFFLUENT REGION. DVORAK ANALYSIS BASED ON .30 ON LOG10 SPIRAL WRAP GIVES DT=PT=MET=2.0. YIELDS. 2.0/2.0/D1.0/24HRS. PAT=MET=2.0. CIMMS INDICATES THAT THE ENVIRONMENTAL SHEAR IS ABOUT 20 KNOTS OVER THE SYSTEM AT THIS STAGE BUT DECREASING TENDENCY IN THE PATH OF 12F. THE SYSTEM IS EXPECTED TO BE STEERED BY THE DEEP NORTHWEST WIND FLOW. MOST GLOBAL MODELS ARE DEVELOPING THE SYSTEM NEAR 20 SOUTH, PERHAPS MERGING WITH 12F WITH 11F LOCATED TO THE FAR SOUTH. POTENTIAL FOR 12F TO DEVELOP INTO A TROPICAL CYCLONE IN THE NEXT 24 HOURS IS MODERATE TO HIGH. THE NEXT TROPICAL DISTURBANCE ADVISORY ON TD 12F WILL BE ISSUED AROUND 102000 UTC. ** WTPS11 NFFN 100900 CCA *** Tropical Disturbance Advisory Number A1 issued from RSMC NADI Feb 10/1001 UTC 2006 UTC. Tropical depression 12F [999 HPa] centre was located near 14.0S 176.0W at 100900 UTC moving east 05 knots but expected to curve southeast later. Position fair and based on latest SSMI, MTSTAT/EIR with animation and peripheral surface reports. SST in the area is about 29-30C. Overall organisation has improved significantly with deep convention erupting near the centre since the past 3 hours. Convective tops also cooling but major band still remains to the east and northeast of LLCC. 12F lies just south of upper [250 HPa] outflow, in a good diffluent region. Dvorak analysis based on .3 wrap thus 2.0/2.0/D1.0/24hrs. PAT=MET=2.0. CIMMS indicates that the environmental shear is about 20 knots over the system at this stage but decreasing tendency in the path of 12F. 12F is expected to be steered by the deep northwest wind flow. Most global models are developing the system near 20 South but seems to be confused with another depression [11F] further south of 12F. Potential for 12F to develop into a tropical cyclone in the next 24 hours is moderate to high. The next Tropical Disturbance Advisory on TD 12F will be issued around 101400 UTC. ** WTPS11 NFFN 100900 CCA *** Tropical Disturbance Advisory Number A1 issued from RSMC NADI Feb 10/1001 UTC 2006 UTC. Tropical depression 12F [999 HPa] centre was located near 14.0S 176.0W at 100900 UTC moving east 05 knots but expected to curve southeast later. Position fair and based on latest SSMI, MTSTAT/EIR with animation and peripheral surface reports. SST in the area is about 29-30C. Overall organisation has improved significantly with deep convention erupting near the centre since the past 3 hours. Convective tops also cooling but major band still remains to the east and northeast of LLCC. 12F lies just south of upper [250 HPa] outflow, in a good diffluent region. Dvorak analysis based on .3 wrap thus 2.0/2.0/D1.0/24hrs. PAT=MET=2.0. CIMMS indicates that the environmental shear is about 20 knots over the system at this stage but decreasing tendency in the path of 12F. 12F is expected to be steered by the deep northwest wind flow. Most global models are developing the system near 20 South but seems to be confused with another depression [11F] further south of 12F. Potential for 12F to develop into a tropical cyclone in the next 24 hours is moderate to high. The next Tropical Disturbance Advisory on TD 12F will be issued around 101400 UTC. ** WTPS21 PGTW 101530 *** MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE FORMATION ALERT CANCELLATION/101521ZFEB2006// REF/A/MSG/NAVPACMETOCCEN PEARL HARBOR HI/092021ZFEB2006// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// RMKS/ 1. REMARKS: THIS CANCELS REF A (WTPN21 PGTW 092030). THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 16.7S 171.5W IS NOW LOCATED NEAR 18.5S 172.1W, APPROXIMATELY 270 NM SOUTH-SOUTHWEST OF PAGO PAGO, AMERICAN SAMOA. RECENT ENHANCED INFRARED IMAGERY DEPICTS A PARTIALLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) AND DISSIPATING CONVECTION. WHILE WEAK TO MODERATE UPPER LEVEL DIFFLUENCE STILL EXISTS ABOVE THE SYSTEM, CONVECTION REMAINS DISORGANIZED. LOCATION OF THE 101200Z LLCC DIFFERS BETWEEN THE FIXING AGENCIES WITH FIXES NEARLY A DEGREE APART. THE CURRENT BEST TRACK INDICATES THE SYSTEM IS COMING UNDER THE INFLUENCE OF A DEVELOPING DISTURBANCE TO THE NORTHWEST. MAXIMUM SUSTAINED WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED AT 1004 MB. SEE REF A (WTPS21 PGTW 092030) FOR FURTHER DETAILS. DUE TO LACK OF ORGANIZATION OVER THE PAST 12 HOURS, AND DEVELOPMENT OF A MORE DOMINANT CIRCULATION TO THE NORTHWEST, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS DOWNGRADED TO POOR.//