Flash Flood Warning 3, NWS Honolulu, HI

869 
WGHW70 PHFO 121308
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
308 AM HST SUN JAN 12 2014

HIC009-121317-
/O.EXP.PHFO.FF.W.0003.000000T0000Z-140112T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI HI-
308 AM HST SUN JAN 12 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR THE ISLAND OF MAUI IN MAUI
COUNTY...

WEATHER RADAR AND RAIN GAGES SHOWED THAT THE HEAVY RAINS HAVE 
DIMINISHED. MAUI COUNTY EMERGENCY PERSONNEL REPORT NO PROBLEMS IN 
EAST MAUI SO THE FLASH FLOOD WARNING IS ALLOWED TO EXPIRE. 

LAT...LON 2088 15616 2084 15598 2064 15597 2062 15616

$$
DONALDSON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST SAT JAN 11 2014

.SYNOPSIS...
A TROUGH ALOFT NORTH OF THE ISLANDS WILL KEEP THE ATMOSPHERE
UNSTABLE ENOUGH TO BRING A THREAT OF HEAVY RAIN AND THUNDERSTORMS
THROUGH TOMORROW. THE ATMOSPHERE WILL BECOME MORE STABLE OVER THE
NEXT COUPLE OF DAYS AS THE TROUGH WEAKENS AND MOVES OFF TO THE
NORTHEAST. A RIDGE ALOFT IS EXPECTED TO PRODUCE MUCH DRIER WEATHER
THROUGH THE REST OF NEXT WEEK.

&&

.DISCUSSION...
SATELLITE LOOPS SHOW A STRONG TROUGH ALOFT NORTH OF THE ISLANDS AND
THE AFTERNOON BALLOON SOUNDINGS SHOWED A VERY UNSTABLE ATMOSPHERE
OVER THE AREA THANKS TO THE TROUGH. RADAR AND SATELLITE LOOPS SHOW
HEAVY SHOWERS AND THUNDERSTORMS NEAR THE ISLANDS...ESPECIALLY AROUND
THE BIG ISLAND AND MAUI. THE THREAT OF HEAVY SHOWERS AND
THUNDERSTORMS WILL CONTINUE THROUGH AT LEAST SUNDAY MORNING AND
POSSIBLY LONGER.

THE GLOBAL MODELS ARE IN GOOD AGREEMENT SHOWING THE TROUGH ALOFT
WEAKENING AND MOVING OFF TO THE NORTHEAST OVER THE NEXT FEW DAY AND
RIDGING ALOFT SPREADING OVER THE AREA FROM THE WEST. THE ATMOSPHERE
WILL DRY OUT AND STABILIZE. BY TUESDAY NIGHT THE ATMOSPHERE WILL BE
DRY AND STABLE ENOUGH SO THAT ONLY LIGHT RAIN CAN BE EXPECTED FROM
TUESDAY NIGHT THROUGH THE END OF THE COMING WEEK.

MEANWHILE A SERIES OF FRONTS WILL APPROACH THE ISLANDS FROM THE
NORTHWEST THROUGH THE COMING WEEK. THESE FRONTS WILL KEEP THE
SUBTROPICAL RIDGE WEAK AND CLOSE TO THE ISLANDS. WITH THE RIDGE
CLOSE TO THE ISLANDS WINDS WILL REMAIN GENTLE THROUGH NEXT WEEK.

&&

.AVIATION...
A SLIGHT CHANCE OF THUNDERSTORMS WILL CONTINUE OVERNIGHT THANKS TO A
TROUGH ALOFT NORTH OF THE AREA. LOW LEVEL FLOW FROM THE SOUTHEAST IS
CONCENTRATING CLOUDS AND SHOWERS OVER THE BIG ISLAND BUT
THUNDERSTORMS WILL BE POSSIBLE ELSEWHERE AS WELL...ESPECIALLY OVER
THE COASTAL WATERS. SIGMET PAPA IS IN EFFECT FOR THUNDERSTORMS AND
AN AIRMET IS IN EFFECT FOR MT OBSC ON THE BIG ISLAND. MORE SIGMETS
AND AIRMETS MAY BE NEEDED OVERNIGHT.

&&

.MARINE...
A HIGH SURF ADVISORY WILL REMAIN IN EFFECT OVERNIGHT FOR EAST
SHORES. THE SWELL PRODUCING THIS SURF IS GRADUALLY LOWERING AND WE
EXPECT TO DROP THE ADVISORY BY MORNING.

A MODERATE NORTHWEST SWELL ARRIVING MONDAY WILL PRODUCE SURF BELOW
THE ADVISORY THRESHOLD THROUGH TUESDAY. A LARGER NORTHWEST SWELL
ARRIVING TUESDAY NIGHT WILL PRODUCE SURF NEAR THE ADVISORY LEVEL
WEDNESDAY. A VERY LARGE NORTHWEST SWELL ARRIVING WEDNESDAY NIGHT
WILL LIKELY PRODUCE WARNING LEVEL SURF THROUGH FRIDAY.

LIGHT TO MODERATE WINDS...WELL BELOW THE SMALL CRAFT ADVISORY
THRESHOLD...ARE EXPECTED THROUGH THE COMING WEEK. A SMALL CRAFT
ADVISORY...SCA...REMAINS UP FOR NOW DUE TO HAZARDOUS SEAS ASSOCIATED
WITH A LARGE NORTHEAST SWELL. WE EXPECT TO DROP THE ADVISORY BY
MORNING.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR EAST FACING SHORES
OF KAUAI OAHU MOLOKAI AND MAUI.

SMALL CRAFT ADVISORY UNTIL 6 AM HST SUNDAY FOR WATERS EXPOSED TO A
LARGE NORTHEAST SWELL.

&&

DONALDSON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
633 PM HST SAT JAN 11 2014

HIZ025-027-120530-
BIG ISLAND INTERIOR-BIG ISLAND NORTH AND EAST-
633 PM HST SAT JAN 11 2014

AT 630 PM HST...A STRONG THUNDERSTORM WAS NEAR PEPEEKEO. THIS STORM
WAS NEARLY STATIONARY.

EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT STAY IN THE OPEN NOR
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN
A THUNDERSTORM APPROACHES. VERY HEAVY RAIN WILL FALL FROM THIS
STORM...AND WILL CAUSE WATER TO POND ON ROADS AND FILL POOR DRAINAGE
AREAS. THE RAIN WILL CAUSE RAPID RISES ON SMALL STREAMS AND CREEKS.

DONALDSON