{"ObservationDate":"2026-05-27T06:00:00","Latitude":9.1,"Longitude":137.6,"Windspeed":26.0,"Pressure":1004.0,"Identifier":"INVEST 99W","PotentialStatus":"High potential for development into a significant tropical cyclone within the next 24 hours","OriginalBulletin":["ABPW10 PGTW 270600","MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//","SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH ","PACIFIC OCEANS/270600Z-280600ZMAY2026//","REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/261451ZMAY2026//","AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//","RMKS/","   B. TROPICAL DISTURBANCE SUMMARY:","      (1) THE AREA OF CONVECTION (INVEST 99W) PREVIOUSLY LOCATED NEAR ","8.3N 138.5E IS NOW LOCATED NEAR 9.1N 137.6E, APPROXIMATELY 40 NM ","SOUTHWEST OF YAP. ANIMATED MULTISPECTRAL (MSI) AND ENHANCED INFRARED ","(EIR) SATELLITE IMAGERY DEPICT A BROAD LOW LEVEL CIRCULATION CENTER ","(LLCC) WITH PERSISTENT CONVECTIVE BANDING ALONG THE SOUTHWESTERN ","PERIPHERY. THE LLCC REMAINS ILL-DEFINED, AND EARLIER MICROWAVE IMAGERY ","AND HIGH-RESOLUTION MODEL DATA SUGGESTS A MISALIGNED VORTEX, WHICH IS ","INHIBITING MORE RAPID DEVELOPMENT. THE CURRENT INTENSITY IS ASSESSED AS ","25 KTS, HOWEVER THE WIND FIELD IS HIGHLY ASYMMETRIC, AND THE 25KT WINDS ","ARE CURRENTLY LIMITED TO A MORE LINEAR FLOW ALONG THE SOUTHERN PERIPHERY ","OF THE CIRCULATION. ENVIRONMENTAL ANALYSIS REVEALS A FAVORABLE ","ENVIRONMENT FOR DEVELOPMENT WITH MODERATE EQUATORWARD AND POLEWARD ","UPPER-LEVEL OUTFLOW, LOW DEEP-LAYER WIND SHEAR (10-15 KTS), AND WARM SEA ","SURFACE TEMPERATURES (29-30 C). GLOBAL ENSEMBLE AND DETERMINISTIC MODELS ","SHOW 99W TRACKING GENERALLY NORTHWESTWARD AS IT CONTINUES TO UNDERGO ","CONSOLIDATION AND INTENSIFICATION OVER THE NEXT 24 HOURS. MAXIMUM ","SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 26 KNOTS. MINIMUM SEA ","LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR THE ","DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS ","REMAINS HIGH. SEE REF A (WTPN21 PGTW 261500) FOR FURTHER DETAILS.","      (2) NO OTHER SUSPECT AREAS.","   C. SUBTROPICAL SYSTEM SUMMARY: NONE.","   B. TROPICAL DISTURBANCE SUMMARY: NONE.","   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//"]}