WTPA33 PHFO 300003 TCPCP3 BULLETIN HURRICANE IGNACIO INTERMEDIATE ADVISORY NUMBER 20A NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP122015 200 PM HST SAT AUG 29 2015 ...POWERFUL HURRICANE IGNACIO CONTINUES TO APPROACH HAWAII... SUMMARY OF 200 PM HST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...16.6N 147.3W ABOUT 550 MI...885 KM ESE OF HILO HAWAII ABOUT 760 MI...1225 KM ESE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...135 MPH...215 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...954 MB...28.17 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * HAWAII COUNTY A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN THE MAIN HAWAIIAN ISLANDS SHOULD CONTINUE TO CLOSELY MONITOR THE PROGRESS OF IGNACIO. WATCHES MAY BE REQUIRED FOR ADDITIONAL ISLANDS LATER TODAY OR TONIGHT. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN HONOLULU HAWAII. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 PM HST...0000 UTC...THE EYE OF HURRICANE IGNACIO WAS LOCATED NEAR LATITUDE 16.6 NORTH...LONGITUDE 147.3 WEST. IGNACIO IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/H...AND THIS MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS. ON THE FORECAST TRACK...IGNACIO WILL BE PASSING NORTHEAST OF THE BIG ISLAND ON MONDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 135 MPH...215 KM/H...WITH HIGHER GUSTS. IGNACIO IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME ADDITIONAL STRENGTHENING IS STILL POSSIBLE TODAY BEFORE A WEAKENING TREND BEGINS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 954 MB...28.17 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE ON THE BIG ISLAND OF HAWAII STARTING SUNDAY NIGHT. RAINFALL...TOTAL RAINFALL AMOUNTS OF 2 TO 4 INCHES...WITH ISOLATED MAXIMUM AMOUNTS NEAR 6 INCHES MAINLY IN AREAS OF HIGHER TERRAIN... ARE POSSIBLE IN THE WATCH AREA. SURF...LARGE SWELLS GENERATED BY IGNACIO WILL ARRIVE ALONG EAST AND SOUTHEAST FACING SHORES OF THE MAIN HAWAIIAN ISLANDS OVER THE NEXT SEVERAL DAYS. RESULTANT SURF WILL BE LARGE AND POTENTIALLY LIFE-THREATENING...ESPECIALLY ON THE BIG ISLAND LATER THIS WEEKEND AND EARLY NEXT WEEK. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 PM HST. $$ FORECASTER R BALLARD