000 WTPZ34 KNHC 220545 TCPEP4 BULLETIN TROPICAL STORM HILARY INTERMEDIATE ADVISORY NUMBER 4A NWS NATIONAL HURRICANE CENTER MIAMI FL EP092011 1100 PM PDT WED SEP 21 2011 ...HILARY CONTINUES TO STRENGTHEN... SUMMARY OF 1100 PM PDT...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...14.5N 97.6W ABOUT 100 MI...160 KM SSW OF PUERTO ESCONDIDO MEXICO ABOUT 140 MI...225 KM SSE OF PUNTO MALDONADO MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * LAGUNAS DE CHACAHUA MEXICO WESTWARD TO LAZARO CARDENAS A TROPICAL STORM WATCH IS IN EFFECT FOR... * WEST OF LAZARO CARDENAS TO MANZANILLO FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 PM PDT...0600 UTC...THE CENTER OF TROPICAL STORM HILARY WAS LOCATED NEAR LATITUDE 14.5 NORTH...LONGITUDE 97.6 WEST. HILARY IS MOVING TOWARD THE WEST-NORTHWEST NEAR 8 MPH...13 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 TO 48 HOURS. ON THE FORECAST TRACK THE CORE OF HILARY WILL CONTINUE TO MOVE PARALLEL TO THE SOUTHWEST COAST OF MEXICO BUT ANY DEVIATION TO THE NORTH OF THE TRACK COULD BRING STRONGER WINDS TO THE COAST. MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 60 MPH...95 KM/H... WITH HIGHER GUSTS. ADDITIONAL STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS AND HILARY IS EXPECTED TO BECOME A HURRICANE ON THURSDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 997 MB...29.44 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM FORCE WINDS ARE EXPECTED TO FIRST REACH THE WARNING AREA THURSDAY...AND THEN SPREAD WESTWARD ALONG THE COAST DURING THE NEXT 24 TO 36 HOURS. RAINFALL...HILARY IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 3 TO 5 INCHES ACROSS PORTIONS OF SOUTHERN MEXICO WITH ISOLATED AMOUNTS OF 10 INCHES POSSIBLE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...200 AM PDT. $$ FORECASTER BROWN