Flash Flood Warning 56, NWS Honolulu, HI

051 
WGHW70 PHFO 090820
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1020 PM HST FRI NOV 8 2013

HIC003-090830-
/O.CAN.PHFO.FF.W.0056.000000T0000Z-131109T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HONOLULU HI-
1020 PM HST FRI NOV 8 2013

...THE FLASH FLOOD WARNING IS CANCELLED FOR THE ISLAND OF OAHU IN
HONOLULU COUNTY...

WEATHER RADAR AND RAIN GAGES SHOWED THAT THE HEAVY RAINS HAVE ENDED.
THUS THE FLASH FLOOD WARNING IS CANCELLED.

LAT...LON 2170 15808 2174 15796 2137 15769 2144 15793

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 PM HST FRI NOV 8 2013

.SYNOPSIS...
A LOW ALOFT AND AMPLE MOISTURE WILL MAKE HEAVY SHOWERS POSSIBLE ON
KAUAI AND OAHU THIS EVENING. MODERATE TRADE WINDS WILL BUILD OVER
THE ISLANDS TONIGHT AND THE CHANCE OF HEAVY SHOWERS WILL SUBSIDE AS
THE LOW ALOFT WEAKENS. A FRONT WILL PUSH SOUTH OVER THE ISLANDS
SATURDAY NIGHT BRINGING INCREASED SHOWERS AND MUCH STRONGER TRADE
WINDS. THE WINDS AND SHOWERS WILL SUBSIDE BY MID-WEEK BUT SHOWERS
MAY INCREASE AGAIN LATER IN THE WEEK AS REMNANTS OF THE FRONT MOVE
BACK OVER THE ISLANDS FROM THE EAST.

&&

.DISCUSSION...
THE ATMOSPHERE OVER THE ISLANDS REMAINS A BIT UNSTABLE DUE TO A LOW
ALOFT ABOUT 225 MILES NORTH NORTHEAST OF KAUAI. THE LOW ALOFT HAS
ALSO INDUCED A WEAK SURFACE TROUGH OVER THE ISLANDS KEEPING WINDS
LIGHT...ESPECIALLY OVER KAUAI COUNTY AND OAHU. THE WEATHER REMAINS
FAIRLY QUIET OVER MOST AREAS THIS EVENING BUT SPOTTY HEAVY SHOWERS
HAVE FORMED OVER CENTRAL KAUAI AND THE NORTH SHORE OF KAUAI. THESE
SHOWERS ARE AT LEAST PARTLY DRIVEN BY AFTERNOON HEATING SO THE
SHOWERS WILL LIKELY SUBSIDE BY SUNSET.

THE GLOBAL MODELS ARE IN GOOD AGREEMENT SHOWING THE LOW ALOFT
DISSIPATING OVER THE NEXT 12 HOURS. THE ATMOSPHERE OVER THE ISLANDS
WILL BECOME MORE STABLE AND TRADE WINDS WILL STRENGTHEN SLIGHTLY.
MODERATE TRADE WINDS WILL PERSIST THROUGH TOMORROW EVENING.

A STRONG SHEAR LINE IS LIKELY TO MOVE SOUTH OVER THE ISLANDS
SATURDAY NIGHT AS A VERY STRONG SURFACE HIGH MOVES EASTWARD FAR
NORTH OF THE ISLANDS. A BAND OF SHOWERS WILL ACCOMPANY THE SHEAR
LINE AND MUCH STRONGER TRADE WINDS WILL MOVE OVER THE ISLANDS ON
SUNDAY. THE TRADE WINDS COULD BE STRONG ENOUGH TO REQUIRE WIND
ADVISORIES.

THE WINDS AND SHOWERS WILL SUBSIDE BY MID-WEEK AS THE FRONTAL BAND
MOVES OFF TO THE SOUTHEAST OF THE ISLANDS. LATER IN THE WEEK
REMNANTS OF THE FRONTAL BAND MAY MOVE BACK OVER THE ISLANDS FROM THE
EAST BRINGING MORE SHOWERY WEATHER.

&&

.MARINE...
THE CURRENT MODERATE NORTH SWELL WILL BE FOLLOWED BY A MODERATE
NORTHWEST SWELL THIS WEEKEND. A LARGE...SHORT-PERIOD NORTHEAST SWELL
IS EXPECTED SUNDAY. A SIGNIFICANT NORTHERLY SWELL WILL ARRIVE
TUESDAY AND BUILD TO WELL OVER THE ADVISORY THRESHOLD WEDNESDAY.
SURF ALONG NORTH FACING SHORES MAY EVEN APPROACH THE WARNING LEVEL.

AS TRADES INCREASE THIS WEEKEND...A SMALL CRAFT ADVISORY WILL LIKELY
BE POSTED OVER MOST...IF NOT ALL...COASTAL WATERS. NEAR GALE FORCE
WINDS ARE POSSIBLE SUNDAY AND MONDAY. EXPECT THE TRADES TO TAPER OFF
MONDAY NIGHT AND TUESDAY.

&&

.AVIATION...
VFR CONDITIONS WILL PREVAIL OVER THE ISLANDS BUT THERE MAY BE
LOCALIZED MVFR CEILINGS AND VISIBILITIES THIS EVENING DUE TO
CONVECTIVE BUILDUPS...MAINLY ON KAUAI AND OAHU.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

DONALDSON