556  
NOHW40 PHFO 132337  
PNSHFO  
HIZ001>028-141145-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE HONOLULU HI  
137 PM HST THU SEP 13 2018  
 
...OLIVIA BRINGS HEAVY RAIN AND FLOODING TO PORTIONS OF THE  
STATE...  
 
ON SEPTEMBER 12, TROPICAL STORM OLIVIA HIT THE STATE OF HAWAII,  
MAKING LANDFALL ON THE ISLANDS OF MAUI AND LANAI IN MAUI COUNTY. THE  
INITIAL RAIN BANDS OF THE TROPICAL STORM STARTED TO AFFECT THE  
WINDWARD SLOPES OF THE BIG ISLAND AND MAUI ON THE MORNING OF SEPTEMBER  
11. RAINFALL COVERAGE AND INTENSITY INCREASED ON SEPTEMBER 12  
ACROSS MAUI COUNTY AS THE CENTER OF OLIVIA PASSED THROUGH THE  
AREA. INTENSE RAINFALL PRODUCED FLASH FLOODING IN SEVERAL  
LOCATIONS WITH THE WORST IMPACTS OCCURRING IN WAIHEE, HONOKOHAU,  
AND NAPILI ALONG THE SLOPES OF THE WEST MAUI MOUNTAINS. THE ISLAND  
OF MOLOKAI ALSO HAD NUMEROUS AREAS OF FLASH FLOODING ALONG  
HIGHWAY 450.  
 
AS THE CENTER OF OLIVIA MOVED TOWARD THE WEST-SOUTHWEST AWAY FROM  
THE STATE, HEAVY RAINFALL SPREAD WESTWARD OVER OAHU ON THE NIGHT  
OF SEPTEMBER 12 AND INTO THE MORNING OF SEPTEMBER 13. FLASH  
FLOODING BRIEFLY CLOSED ROADS IN WAIKANE AND WAIAHOLE, AND THERE  
WAS A BRIEF PERIOD OF CONCERN AS THE WATER LEVEL IN NUUANU  
RESERVOIR NUMBER 1 NEARLY REACHED THE SPILLWAY LEVEL.  
 
HERE ARE SOME OF THE SIGNIFICANT RAINFALL TOTALS COVERING THE  
48-HOUR PERIOD FROM 6 AM HST SEPTEMBER 11 THROUGH 6 AM HST  
SEPTEMBER 13. ALL VALUES ARE IN INCHES AND ARE PRELIMINARY  
PENDING FINAL QUALITY CONTROL.  
 
MAUI COUNTY  
WEST WAILUAIKI (USGS) : 12.93  
PUU ALII (NPS) : 12.03  
PUU KUKUI (USGS) : 11.86  
MOLOKAI 1 : 7.81  
MAHINAHINA : 4.84  
KAMALO : 4.54  
 
ISLAND OF OAHU  
MANOA LYON ARBORETUM : 10.31  
NUUANU UPPER : 7.41  
MOANALUA : 6.60  
WAIAWA CORRECTIONAL FAC : 5.68  
HAWAII KAI GOLF COURSE : 5.25  
 

 
 
KODAMA  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HI Page Main Text Page