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Tropical Storm SONIA Public Advisory Number 9
2013-11-03 09:44:18| National Hurricane Center (East Pacific)
Issued at 100 AM PST SUN NOV 03 2013 000 WTPZ33 KNHC 030844 TCPEP3 BULLETIN TROPICAL STORM SONIA ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP182013 100 AM PST SUN NOV 03 2013 ...DEPRESSION STRENGTHENS INTO TROPICAL STORM SONIA JUST EAST OF SOCORRO ISLAND... ...TROPICAL STORM WARNING ISSUED FOR PORTIONS OF NORTHWESTERN MEXICO... SUMMARY OF 100 AM PST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...18.8N 110.0W ABOUT 285 MI...455 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA ABOUT 445 MI...715 KM SSW OF CULIACAN MEXICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...N OR 360 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE GOVERNMENT OF MEXICO HAS ISSUED A TROPICAL STORM WARNING FROM MAZATLAN NORTHWARD TO ALTATA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * MAZATLAN TO ALTATA A TROPICAL STORM WATCH IS IN EFFECT FOR... * NORTH OF ALTATA TO TOPOLOBAMPO A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 36 HOURS. INTERESTS IN BAJA CALIFORNIA SUR AND ELSEWHERE IN WEST-CENTRAL MAINLAND MEXICO SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 100 AM PST...0900 UTC...THE CENTER OF TROPICAL STORM SONIA WAS LOCATED NEAR LATITUDE 18.8 NORTH...LONGITUDE 110.0 WEST. SONIA IS MOVING TOWARD THE NORTH NEAR 7 MPH...11 KM/H...AND THIS GENERAL MOTION IS FORECAST TO CONTINUE THROUGH THIS MORNING. A TURN TOWARD THE NORTH-NORTHEAST WITH AN INCREASE IN FORWARD SPEED IS EXPECTED TO BEGIN BY THIS AFTERNOON OR EVENING. ON THE FORECAST TRACK...THE CENTER OF THE CYCLONE WILL REMAIN TO THE EAST OF SOCORRO ISLAND THIS MORNING...PASS SOUTH OF THE SOUTHERN TIP OF THE BAJA CALIFORNIA PENINSULA TONIGHT...AND APPROACH THE COAST OF MAINLAND MEXICO WITHIN THE WARNING AREA BY EARLY MONDAY. MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 40 MPH...65 KM/H... WITH HIGHER GUSTS. SOME SLIGHT STRENGTHENING IS POSSIBLE UNTIL SONIA MAKES LANDFALL ON MONDAY. RAPID WEAKENING WILL BEGIN AFTER SONIA MAKES LANDFALL. TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 80 MILES...130 KM... MAINLY TO THE NORTHWEST OF THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1004 MB...29.65 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN THE WARNING AREA BY EARLY MONDAY. TROPICAL STORM CONDITIONS ARE POSSIBLE IN THE WATCH AREA ON MONDAY. RAINFALL...SONIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 6 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 10 INCHES...ALONG THE WEST COAST OF MEXICO ACROSS PORTIONS OF SINALOA AND WESTERN DURANGO. THESE RAINS MAY PRODUCE LIFE THREATENING FLASH FLOODS AND MUDSLIDES. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...400 AM PST. NEXT COMPLETE ADVISORY...700 AM PST. $$ FORECASTER STEWART
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