000 WTPZ34 KNHC 231734 TCPEP4 BULLETIN TROPICAL STORM FRANK INTERMEDIATE ADVISORY NUMBER 8A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP092010 1100 AM PDT MON AUG 23 2010 ...FRANK WEAKENS SLIGHTLY OFF THE COAST OF MEXICO... SUMMARY OF 1100 AM PDT...1800 UTC...INFORMATION ----------------------------------------------- LOCATION...14.8N 98.7W ABOUT 110 MI...175 KM S OF PUNTO MALDONADO MEXICO ABOUT 160 MI...260 KM SSE OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...55 MPH...90 KM/HR PRESENT MOVEMENT...WNW OR 285 DEGREES AT 8 MPH...13 KM/HR MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE COAST OF MEXICO FROM LAGUNAS DE CHACAHUA WESTWARD TO ZIHUATANEJO A TROPICAL STORM WATCH IS IN EFFECT FOR... * THE COAST OF MEXICO FROM WEST OF ZIHUATANEJO TO PUNTA SAN TELMO A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 AM PDT...1800 UTC...THE CENTER OF TROPICAL STORM FRANK WAS LOCATED NEAR LATITUDE 14.8 NORTH...LONGITUDE 98.7 WEST. FRANK IS MOVING ERRATICALLY TOWARD THE WEST-NORTHWEST NEAR 8 MPH...13 KM/HR. A GENERAL MOTION TO THE WEST-NORTHWEST...ACCOMPANIED BY SOME FLUCTUATIONS IN FORWARD SPEED...IS EXPECTED FOR THE NEXT DAY OR SO. ON THE FORECAST TRACK...FRANK SHOULD MOVE PARALLEL TO THE COAST OF SOUTHERN MEXICO THROUGH WEDNESDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 55 MPH...90 KM/HR...WITH HIGHER GUSTS. SOME FLUCTUATIONS IN STRENGTH WILL BE POSSIBLE TODAY...BUT STEADY STRENGTHENING IS EXPECTED TO BEGIN ON TUESDAY. IT IS STILL POSSIBLE THAT FRANK COULD REACH HURRICANE STRENGTH AS EARLY AS LATE TUESDAY NIGHT. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS COULD APPROACH THE COAST WITHIN THE WARNING AREA ON TUESDAY. RAINFALL...FRANK IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 6 INCHES ALONG THE SOUTHERN COASTAL REGION OF MEXICO...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 10 INCHES. THESE RAINFALL AMOUNTS MAY PRODUCE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...200 PM PDT. $$ FORECASTER STEWART