ZCZC MIATCPEP5 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE ISIS ADVISORY NUMBER 5 NATIONAL WEATHER SERVICE MIAMI FL 2 PM PDT WED SEP 02 1998 ...ISIS BECOMES A HURRICANE...HURRICANE WARNINGS ISSUED ALONG PART OF GULF OF CALIFORNIA COASTS... AT 2 PM PDT...2100Z...THE GOVERNMENT OF MEXICO HAS REVISED THE WARNINGS FOR ISIS. A HURRICANE WARNING IS NOW IN EFFECT FOR MAINLAND MEXICO FROM EL DORADO TO BAHIA KINO AND FOR THE EAST SIDE OF BAJA CALIFORNIA FROM DOLORES TO PUNTA SAN GABRIEL. A TROPICAL STORM WARNING IS NOW IN EFFECT FOR THE WEST SIDE OF BAJA CALIFORNIA FROM PUERTO CORTEZ TO PUNTA EUGENIA. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE LIKELY TO OCCUR WITHIN THE WARNED AREA DURING THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION IN THE HURRICANE WARNING AREA. AT 2 PM PDT...2100Z...SATELLITE IMAGERY AND RADAR DATA FROM THE WEATHER SERVICE OF MEXICO INDICATE THAT THE CENTER OF HURRICANE ISIS IS LOCATED NEAR LATITUDE 24.7 NORTH...LONGITUDE 109.1 WEST OR ABOUT 75 MILES...120 KM...SOUTH OF LOS MOCHIS MEXICO. ISIS IS MOVING TOWARD THE NORTH NEAR 12 MPH...19 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE THROUGH TONIGHT WITH A POSSIBLE GRADUAL TURN TOWARD THE NORTH-NORTHWEST. ON THIS TRACK...THE CENTER OF ISIS WILL CONTINUE TO PROGRESS UP THE GULF OF CALIFORNIA. A SLIGHT DEVIATION FROM THIS TRACK...HOWEVER...WILL BRING THE CENTER INLAND WITHIN THE WARNING AREA. SATELLITE PICTURES THIS AFTERNOON INDICATE THE DEVELOPMENT OF AN EYE AND THIS IS THE BASIS FOR UPGRADING ISIS TO A HURRICANE. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 24 HOURS...AS LONG AS THE CENTER REMAINS OVER WATER. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES... 45 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM...MAINLY SOUTHEAST OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 990 MB...29.23 INCHES. A STORM SURGE OF 3 TO 5 FEET ABOVE NORMAL TIDE LEVELS IS POSSIBLE IN THE WARNING AREA...ACCOMPANIED BY BATTERING WAVES. LARGE WAVES AND ROUGH SEAS CAN ALSO BE EXPECTED ALONG PORTIONS OF THE COAST TO THE SOUTH OF THE WARNING AREAS...AND SMALL CRAFT THERE SHOULD REMAIN IN PORT UNTIL WINDS AND SEAS SUBSIDE. RAINFALL TOTALS OF 5 TO 10 INCHES...LOCALLY HIGHER...ARE POSSIBLE IN THE WARNING AREA...AND COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES. THE WEATHER SERVICE OF MEXICO REPORTED 13 INCHES OF RAIN IN THE CABO SAN LUCAS AREA OF SOUTHERN BAJA CALIFORNIA. REPEATING THE 2 PM PDT POSITION...24.7 N...109.1 W. MOVEMENT TOWARD...NORTH NEAR 12 MPH. MAXIMUM SUSTAINED WINDS... 75 MPH. MINIMUM CENTRAL PRESSURE... 990 MB. AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 5 PM PDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 8 PM PDT. RAPPAPORT NNNN