Flash Flood Warning 26, NWS Honolulu, HI

698 
WGHW70 PHFO 241502
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
502 AM HST MON AUG 24 2015

HIC009-241700-
/O.CON.PHFO.FF.W.0026.000000T0000Z-150824T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI HI-
502 AM HST MON AUG 24 2015

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF MAUI IN
MAUI COUNTY UNTIL 700 AM HST...

AT 445 AM HST...RADAR INDICATED HEAVY RAINFALL CONTINUING OVER EAST 
MAUI NEAR HANA. RAINFALL ESTIMATES OF MORE THAN 4 INCHES PER HOUR 
WERE OCCURRING OVER THE SLOPES BETWEEN HANA TOWN AND HANA AIRPORT. 
KAWAIPAPA GULCH NEAR HANA TOWN IS LIKELY TO BE RUNNING VERY HIGH. 
ADDITIONAL HEAVY RAINFALL WAS MOVING TOWARD EAST MAUI FROM THE 
SOUTHEAST. THIS IS A VERY DANGEROUS SITUATION OVER EAST MAUI. AVOID 
UNNECESSARY TRAVEL...ESPECIALLY ALONG HANA HIGHWAY NEAR HANA TOWN 
AND NEARBY ROADS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KULA...
PUKALANI...NAHIKU...MAKAWAO...KIHEI...KEANAE AND HANA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING
IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.

DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT.
TURN AROUND...DON/T DROWN.

&&

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 700 AM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2096 15621 2090 15590 2059 15595 2049 15641
      2073 15655

$$

KODAMA

970 
WGHW50 PHFO 241646
FFWHFO
HIC009-242000-
/O.EXT.PHFO.FF.W.0026.000000T0000Z-150824T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
646 AM HST MON AUG 24 2015

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE ISLAND OF MAUI IN MAUI COUNTY

* UNTIL 1000 AM HST

* AT 634 AM HST...MAUI CIVIL DEFENSE REPORTED THAT THE HANA HIGHWAY 
  WAS IMPASSABLE BETWEEN MILE MARKERS 29 AND 36 DUE TO STREAMS 
  HAVING OVERTOPPED BRIDGES IN 3 LOCATIONS. THE PIILANI HIGHWAY WAS 
  ALSO CLOSED NEAR MILE MARKERS 38 AND 39. RAINFALL RATES OVER EAST 
  MAUI HAVE DIMINISHED BUT RUNOFF LEVELS REMAIN HIGH AND ADDITIONAL 
  RAINFALL WAS MOVING TOWARD THE KIHEI AND WAILEA AREAS FROM THE 
  SOUTH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PUKALANI...NAHIKU...MAKAWAO...KIHEI...KEANAE...WAILEA AND HANA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING
IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.

DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT.
TURN AROUND...DON/T DROWN.

&&

THIS FLASH FLOOD WARNING REPLACES THE PRE-EXISTING WARNING THAT WAS
IN EFFECT FOR THE ISLAND OF MAUI IN MAUI COUNTY.

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1000 AM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2096 15621 2090 15590 2059 15595 2049 15641
      2073 15655

$$

KODAMA

993 
WGHW50 PHFO 241957
FFWHFO
HIC009-242300-
/O.EXT.PHFO.FF.W.0026.000000T0000Z-150824T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
957 AM HST MON AUG 24 2015

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE ISLAND OF MAUI IN MAUI COUNTY

* UNTIL 100 PM HST

* AT 944 AM HST...HEAVY RAINFALL HAS DIMINISHED BUT RUNOFF LEVELS 
  REMAIN HIGH AND FLOODING CONDITIONS ARE ONGOING. PIILANI HIGHWAY 
  REMAINS CLOSED NEAR MILE MARKERS 38 AND 39...AND THE HANA HIGHWAY 
  REMAINS CLOSED FROM MILE MARKERS 29 TO 36. KIPAHULU IS 
  INACCESSIBLE DUE TO FLOODING. AVOID UNNECESSARY TRAVEL.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PUKALANI...NAHIKU...MAKAWAO...KIHEI...KEANAE...WAILEA AND HANA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING
IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.

DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT.
TURN AROUND...DON/T DROWN.

&&

THIS FLASH FLOOD WARNING REPLACES THE PRE-EXISTING WARNING THAT WAS
IN EFFECT FOR THE ISLAND OF MAUI IN MAUI COUNTY.

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 100 PM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2096 15621 2090 15590 2059 15595 2049 15641
      2073 15655

$$

KODAMA

699 
WGHW70 PHFO 242215
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1215 PM HST MON AUG 24 2015

HIC009-242300-
/O.CON.PHFO.FF.W.0026.000000T0000Z-150824T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI HI-
1215 PM HST MON AUG 24 2015

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF MAUI IN
MAUI COUNTY UNTIL 100 PM HST...

RAINFALL HAS EASED OVER MAUI BUT SIGNIFICANT RUNOFF AND FLOODING 
IMPACTS ARE STILL OCCURRING. MAUI COUNTY CIVIL DEFENSE REPORTED THAT 
A PORTION OF ULAINO ROAD HAS BEEN WASHED OUT AND WAIKOLOA ROAD IN 
HANA HAS BEEN CLOSED. PORTIONS OF PIILANI HIGHWAY BETWEEN MILE 
MARKERS 38 AND 39...AND THE HANA HIGHWAY FROM MILE MARKERS 29 TO 36 
REMAIN CLOSED. SEVERAL STATE PARKS HAVE ALSO BEEN CLOSED...INCLUDING 
IAO VALLEY AND WAINAPANAPA.

THIS WARNING INCLUDES ALL AREAS EAST OF A LINE FROM HAIKU TO KIHEI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING
IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.

DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT.
TURN AROUND...DON/T DROWN.

&&

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 100 PM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2096 15621 2090 15590 2059 15595 2049 15641
      2073 15655

$$

KODAMA

530 
WGHW70 PHFO 242255
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1255 PM HST MON AUG 24 2015

HIC009-242305-
/O.EXP.PHFO.FF.W.0026.000000T0000Z-150824T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI HI-
1255 PM HST MON AUG 24 2015

...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 ENDED.
THUS THE FLASH FLOOD WARNING IS ALLOWED TO EXPIRE.

THE HEAVY RAINS AND FLOODING HAVE SUBSIDED...BUT RUNOFF IS STILL
OCCURRING AND STREAMS WILL REMAIN HIGH FOR SEVERAL HOURS. SEVERAL 
ROADS AND PARKS ON MAUI REMAIN CLOSED.

LAT...LON 2096 15621 2090 15590 2059 15595 2049 15641
      2073 15655

$$

KODAMA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST MON AUG 24 2015

.SYNOPSIS...
AN EXTREMELY MOIST AIR MASS OVER THE STATE...TOGETHER WITH LOW
PRESSURE IN THE MIDDLE ATMOSPHERE TO THE NORTH...RAISED THE THREAT
OF HEAVY RAIN AND THUNDERSTORMS ACROSS THE MAIN HAWAIIAN ISLANDS
THROUGH THE EARLY PART OF THE WEEK. LIGHT SOUTHEAST WINDS WILL
STRENGTHEN AND BECOME MORE EASTERLY SLOWLY THROUGH THE WEEK. ANOTHER
PERIOD OF UNSETTLED WEATHER MAY OCCUR NEXT WEEKEND.

&&

.DISCUSSION...
AN EXTREMELY AND UNSEASONABLY MOIST AIR MASS CONTINUED TO STREAM
OVER THE MAIN HAWAIIAN ISLANDS FROM THE SOUTHEAST. AT THE SAME
TIME...BROAD BUT SHALLOW TROUGHING ALOFT TO THE NORTH OF THE
STATE HELPED TO DESTABILIZE THE LOCAL ATMOSPHERE. SOUNDING DATA
RECORDED TEMPERATURES AT 500 MB NOT MUCH COLDER THAN USUAL
OVERHEAD...AND THE CORE OF THE COLD POOL REMAINED TO THE
NORTHEAST...BUT THE AIR MASS AT LOWER LEVELS WAS SO MOIST THAT ANY
FURTHER STEEPENING OF THE ENVIRONMENTAL LAPSE RATE SUFFICED.

THE TROUGHING ALOFT ALSO LIMITED SUPPORT FOR THE SUBTROPICAL RIDGE
AT THE SURFACE. THUS...THE WEST END OF THE RIDGE RETREATED GRADUALLY
TOWARD THE EAST...KEEPING WINDS SOUTHEASTERLY TO SOUTHERLY OVER THE
ISLANDS. GUIDANCE AGREED WELL IN MAINTAINING THIS SITUATION THROUGH
AT LEAST THE MIDDLE OF THE WEEK. INTERESTINGLY...SATELLITE ESTIMATES
DETECTED A SIGNIFICANTLY DRIER AIR MASS EAST OF 150W AT THE LATITUDE
OF THE STATE. HOWEVER...THE ORIENTATION OF THE PREVAILING FLOW WILL
KEEP PRECIPITABLE WATER AMOUNTS APPROACHING TWO AND A HALF INCHES IN
PLACE OVER THE ISLANDS AT LEAST THROUGH WEDNESDAY.

BY THE END OF THE WEEK...GUIDANCE GENERALLY AGREED THAT THE MOSTLY
ZONAL MID-LEVEL TROUGH TO THE NORTH WILL SHIFT SOUTH IN SOME WAY...
ALTHOUGH SPECIFICS DIFFERED. SOME SOLUTIONS...SUCH AS THE ECMWF...
DEPICTED THE AXIS OF THE MERIDIONALLY DIGGING TROUGH TO REMAIN
MOSTLY EAST OF THE STATE. ON THE OTHER HAND...OTHER SOLUTIONS...LIKE
THE GFS...DEVELOPED THE TROUGH OVER OR SLIGHTLY WEST OF THE ISLANDS.
DESPITE SOME LIMITED DRYING NEAR THE SURFACE...THE COLDER AIR AND
DYNAMIC SUPPORT ALOFT STILL IMPLIED ANOTHER PERIOD OF POSSIBLE DEEP
CONVECTION FOR NEXT WEEKEND. FOR NOW...A SLIGHT CHANCE OF
THUNDERSTORMS HAS BEEN INTRODUCED FOR THE MIDDLE OF THE STATE AROUND
NEXT SATURDAY.

FOR THE TIME BEING HOWEVER...THE CONVECTION CURRENTLY POPPING OVER
THE STATE REPRESENTED THE BIGGEST CONCERN IN THE FORECAST.

&&

.AVIATION...
SOUTHEASTERLY FLOW WILL CONTINUE TO STEER BANDS OF LOW CLOUDS AND
SHOWERS TOWARDS THE ISLANDS. PRECIPITATION WILL FAVOR EAST AND
SOUTHEAST FACING SLOPES AND COASTS BUT GIVEN THE HIGHLY MOIST
UNSTABLE AIRMASS OVER THE STATE...THE POTENTIAL FOR LOCALIZED HEAVY
DOWNPOURS EXISTS EVERYWHERE. THE AIRMET FOR MTN OBSCURATION FOR
EASTERN BIG ISLAND WILL LIKELY REMAIN NECESSARY THROUGH AT LEAST
MONDAY MORNING.

THUNDERSTORMS HAVE ALREADY BEEN REPORTED THIS EVENING FROM ONE END
OF THE STATE TO THE OTHER WITH THE GREATEST ACTIVITY THUS FAR
OCCURING OVER LEEWARD AREAS. NOW HOWEVER...A DENSE BAND OF
THUNDERSTORMS...TRIGGERED BY A SOUTHEASTWARD MOVING UPPER LEVEL
DISTURBANCE...IS VISIBLE ON SATELLITE JUST TO THE NORTH OF THE
ISLANDS. SIGMET NOVEMBER FOR EMBEDDED THUNDERSTORMS HAS BEEN ISSUED
AND COULD NEED TO EXPANDED TO INCLUDE MUCH OF THE STATE LATER
THIS EVENING. WHILE VFR CONDITIONS ARE FORECAST TO PREVAIL AT ALL
TAF SITES THE POTENTIAL FOR LIGHTNING AND BRIEF PERIODS OF IFR CIGS
AND/OR VIS SHOULD BE CONSIDERED TO EXIST ALL AREAS.

&&

.MARINE...
A SMALL TO MODERATE W SWELL WILL CONTINUE OVER THE ISLANDS THROUGH
THE MIDDLE OF THE WEEK. A SLIGHTLY LARGER VERY LONG-PERIOD WNW
SWELL FROM DISTANT TYPHOON ATSANI IS EXPECTED TO ARRIVE AROUND
WEDNESDAY...AND THEN TO PEAK THURSDAY INTO FRIDAY. THIS SWELL MAY BE
LARGE ENOUGH TO PRODUCE ADVISORY-LEVEL SURF ALONG WEST-FACING SHORES
OF THE BIG ISLAND.

MARINERS MAY ENCOUNTER HEAVY SHOWERS OR THUNDERSTORMS AS A VERY
MOIST AND UNSTABLE AIR MASS LINGERS ACROSS THE AREA THROUGH THE NEXT
COUPLE OF DAYS. A MARINE WEATHER STATEMENT IS IN EFFECT TO HIGHLIGHT
THE THREAT TO MARINERS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH MONDAY AFTERNOON FOR NIIHAU-KAUAI-OAHU-
MOLOKAI-LANAI-MAUI-BIG ISLAND.

SEVERE THUNDERSTORM WATCH 1 IN EFFECT UNTIL 4 AM HST MONDAY FOR
OAHU...MAUI COUNTY...AND ADJACENT WINDWARD WATERS.

&&

AVIATION...BEDAL
DISCUSSION/MARINE...RYSHKO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
322 AM HST MON AUG 24 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0301 AM     FLASH FLOOD      HONOLULU                21.31N 157.86W
08/24/2015                   HONOLULU           HI   COUNTY OFFICIAL

            FLOODING REPORTED ON MANY ROADS IN HONOLULU ESPECIALLY
            NEAR ALA MOANA SHOPPING CENTER. BUT ALSO INCLUDING AREAS
            OF KING AND ALAKEA, 11TH AND WAIALAE, BERETAINIA AND
            PIIKOI.

&&

HFO