000 WTPZ32 KNHC 210231 TCPEP2 BULLETIN TROPICAL STORM POLO ADVISORY NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL EP172014 800 PM PDT SAT SEP 20 2014 ...POLO CONTINUES TO WEAKEN AS IT PASSES SOUTH OF BAJA CALIFORNIA SUR... SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...21.6N 109.9W ABOUT 90 MI...145 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * SOUTHERN BAJA CALIFORNIA PENINSULA FROM SANTA FE TO LA PAZ FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 800 PM PDT...0300 UTC...THE CENTER OF TROPICAL STORM POLO WAS LOCATED NEAR LATITUDE 21.6 NORTH...LONGITUDE 109.9 WEST. POLO IS MOVING TOWARD THE WEST-NORTHWEST NEAR 7 MPH...11 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH SUNDAY. A TURN TOWARD THE WEST AND A DECREASE IN FORWARD SPEED ARE FORECAST ON MONDAY. ON THE FORECAST TRACK...THE CENTER OF POLO WILL PASS SOUTH OF THE SOUTHERN PORTION OF THE BAJA CALIFORNIA PENINSULA DURING THE NEXT FEW HOURS. HOWEVER...ANY DEVIATION TO THE NORTH OF THE FORECAST TRACK COULD BRING STRONGER WINDS TO THE SOUTHERN BAJA CALIFORNIA PENINSULA. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 40 MPH...65 KM/H... WITH HIGHER GUSTS. ADDITIONAL WEAKENING IS FORECAST DURING THE NEXT COUPLE OF DAYS. POLO IS FORECAST TO WEAKEN TO A TROPICAL DEPRESSION ON SUNDAY...AND BECOME A REMNANT LOW SUNDAY NIGHT OR EARLY MONDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 80 MILES...130 KM...MAINLY TO THE SOUTH OF THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1004 MB...29.65 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA TONIGHT. SURF...SWELLS GENERATED BY POLO WILL AFFECT THE SOUTHERN BAJA CALIFORNIA PENINSULA AND THE SOUTHERN GULF OF CALIFORNIA THROUGH SUNDAY. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE. RAINFALL...POLO COULD PRODUCE ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES OVER THE EXTREME SOUTHERN BAJA CALIFORNIA PENINSULA THROUGH SUNDAY. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...1100 PM PDT. NEXT COMPLETE ADVISORY...200 AM PDT. $$ FORECASTER BRENNAN