Severe Thunderstorm Warning 8, NWS Honolulu, HI

672 
WWHW50 PHFO 240108
SVSHFO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
308 PM HST FRI NOV 23 2012

HIC003-240115-
/O.CON.PHFO.SV.W.0008.000000T0000Z-121124T0115Z/
HONOLULU HI-
308 PM HST FRI NOV 23 2012

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 315 PM HST FOR THE
ISLAND OF OAHU IN HONOLULU COUNTY...

AT 302 PM HST...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED OVER PEARL HARBOR...AND WAS NOW 
DRIFTING SOUTH SOUTH AT 5 MPH. OTHER STRONG THUNDERSTORMS WERE 
DEVELOPING OVER KALIHI AND PEARL HARBOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...HAIL...AND DEADLY CLOUD TO GROUND
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING...BUT AWAY FROM WINDOWS.

&&

LAT...LON 2142 15799 2142 15793 2136 15782 2127 15789
      2135 15804
TIME...MOT...LOC 0107Z 001DEG 5KT 2137 15798

$$

R BALLARD

505 
WWHW50 PHFO 240116
SVSHFO

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
316 PM HST FRI NOV 23 2012

HIC003-240123-
/O.EXP.PHFO.SV.W.0008.000000T0000Z-121124T0115Z/
HONOLULU HI-
316 PM HST FRI NOV 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR THE ISLAND OF OAHU IN HONOLULU
COUNTY EXPIRES AT 315 PM HST...

AT 315 PM HST...RADAR INDICATED A STRONG THUNDERSTORM OVER PEARL 
HARBOR. THIS STORM WAS DRIFTING TOWARD THE SOUTH-SOUTHWEST AT 5 TO 
10 MPH...TOWARD IROQUOIS POINT AND EWA BEACH. 

THIS STORM HAS WEAKENED SOME...BUT IS STILL CAPABLE OF PRODUCING 
HEAVY RAIN...CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND POSSIBLY 
SOME SMALL HAIL.

LAT...LON 2142 15799 2142 15793 2136 15782 2127 15789
      2135 15804
TIME...MOT...LOC 0113Z 031DEG 6KT 2136 15800

$$
R BALLARD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
932 AM HST FRI NOV 23 2012

.SYNOPSIS...
AN UNSETTLED WEATHER PATTERN CONTINUES TODAY AS A SERIES OF UPPER
LEVEL DISTURBANCES MOVE ACROSS THE AREA. LOCALLY HEAVY RAIN AND A
FEW THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING. A GRADUAL
TREND TOWARDS MORE STABLE CONDITIONS WILL BEGIN ON SATURDAY WITH
TRADE WINDS RETURNING BY LATE SUNDAY AND INTO MONDAY. THE TRADES
BECOME MORE ROBUST AS HIGH PRESSURE BUILDS TO THE NORTH OF THE AREA
THROUGH THE FIRST HALF OF NEXT WEEK.

&&

.DISCUSSION...
AN UNSETTLED WEATHER PATTERN CONTINUES ACROSS THE AREA TODAY WITH
POTENTIAL FOR A FEW THUNDERSTORMS THROUGH THIS EVENING AS A COUPLE
OF UPPER LVL DISTURBANCES TRACK JUST TO THE NORTH OF THE AREA. MOST
OF THE THUNDERSTORM ACTIVITY LAST NIGHT REMAINED AROUND KAUAI
COUNTY...WITH A FEW BRIEF STORMS JUST NORTH OF OAHU. 12Z LIHUE AND
HILO SOUNDINGS CONTINUE TO DEPICT A RATHER MOIST AND UNSTABLE
ATMOSPHERE WITH PWATS OF 1.53 TO 1.74 INCHES...AND LI VALUES BETWEEN
-5 AND -6.

SURFACE ANALYSES SHOW A SFC FRONTAL BOUNDARY TO THE NW OF THE MAIN
HAWAIIAN ISLANDS...WHICH WILL KEEP GENERALLY LIGHT SOUTHERLY FLOW
ACROSS MUCH OF THE STATE FOR THE NEXT COUPLE OF DAYS. AS THE PARENT
LOW DEPARTS WELL TO THE NE...THE FRONT WILL GRADUALLY WEAKEN AND
DISSIPATE THROUGH THE WEEKEND. THE LIGHT WINDS WILL ALLOW FOR SEA
BREEZES TO DEVELOP THIS AFTERNOON. ALSO...STRONGER DAYTIME HEATING
IS POSSIBLE AS CLOUD COVER BEGINS TO SLOWLY BREAK DOWN TODAY. IN
ADDITION...A SHORT WAVE IMPULSE IS APPROACHING KAUAI FROM THE WEST
AND WILL BRING SOME ADDITIONAL INSTABILITY WITH IT. THUS...LOCALIZED
HEAVY RAIN AND EVEN A FEW THUNDERSTORMS COULD DEVELOP IN THE
AFTERNOON AND EARLY EVENING HOURS...ESPECIALLY OVER KAUAI AND OAHU.
A TREND TOWARDS MORE STABLE CONDITIONS WILL BEGIN LATE SATURDAY AND
INTO SUNDAY.

FOR THE LONG TERM FORECAST...MODEL GUIDANCE BRINGS BACK HIGH
PRESSURE NORTH OF THE ISLANDS IN THE WAKE OF THE DISSIPATING
FRONT...WITH RETURNING TRADE WINDS BY EARLY NEXT WEEK. A MORE ROBUST
TRADE WIND REGIME WILL BE IN PLACE BY MONDAY AND INTO EARLY
TUESDAY.

&&

.AVIATION...
A MID TO UPPER LEVEL TROUGH TRAVERSING THE AREA THROUGH TONIGHT
BEFORE EXITING THE STATE TO THE EAST. POSSIBILITY OF AN ISOLATED CB
FORMING AROUND THE AREA TODAY AND OVER THE NEARBY WATERS TONIGHT
THUS WILL KEEP A MENTION OF TSTMS IN THE AREA FORECAST. WILL ALSO
THE POTENTIAL FOR LIGHT TO MODERATE ICING GENERALLY BETWEEN 150 AND
FL230.

TAF SITES WILL USUALLY SEE DIURNAL EFFECTS DURING THIS LIGHT WIND
REGIME WITH SEA AND LAND BREEZES MOST DOMINANT THROUGH TONIGHT AND
PERHAPS THROUGH SATURDAY WITH LIGHT TRADES TRYING TO SETTLE BACK
IN. AFTERNOON CLOUDINESS OVER THE INTERIORS OF THE ISLANDS WILL
USUALLY NOT AFFECT THOSE TAF SITES WHICH ARE LOCATED ALONG THE
COASTLINE.

&&

.MARINE...
WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW SMALL CRAFT ADVISORY
THROUGH THE REMAINDER OF THE WEEKEND...BUT A QUICK INCREASE IN
NORTHEASTERLY TRADES IS EXPECTED FOR EARLY NEXT WEEK. CONDITIONS
MAY REACH ADVISORY CRITERIA AND SPREAD ACROSS MUCH OF THE COASTAL
WATERS AND CHANNELS DOWN THE ISLAND CHAIN.

THE CURRENT NORTH SWELL WILL CONTINUE TO SLOWLY DIMINISH TODAY.
HOWEVER...A REINFORCING NORTH NORTHWEST SWELL IS EXPECTED TO CAUSE A
BOOST IN SURF HEIGHTS ALONG MOST NORTH FACING AND SOME WEST FACING
SHORES OF THE ALOHA STATE STARTING LATER TONIGHT. THIS SWELL WILL
LIKELY PEAK SATURDAY AND THEN SLOWLY SUBSIDE DURING THE REMAINDER OF
THE WEEKEND. SURF ALONG NORTH FACING SHORES WILL BE 3 TO 5 FEET WITH
LOCALLY HIGHER SETS TODAY...THEN RISE TO 4 TO 7 FEET WITH LOCALLY
HIGHER SETS ON SATURDAY.

A NEW MODERATE NORTHWEST SWELL...WHICH IS EXPECTED TO ARRIVE EARLY
MONDAY MORNING AND PEAK LATE MONDAY NIGHT OR EARLY TUESDAY MORNING.

&&

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

&&

SYNOPSIS/DISCUSSION/MARINE...REYNES
AVIATION...FUJI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
229 PM HST FRI NOV 23 2012

HIZ005-010-240230-
OAHU SOUTH SHORE-CENTRAL OAHU-
229 PM HST FRI NOV 23 2012

STRONG THUNDERSTORMS IN THE MILILANI TO PEARL CITY AND AIEA AREA
WILL PRODUCE HEAVY RAIN AND POSSIBLE SMALL HAIL THROUGH 330 PM
HST.

THE THUNDERSTORMS ARE MOVING EAST SOUTHEAST AROUND 15 MPH.

REYNES