Alert archive / Hawaii / Flash Flood Warnings in 2011

Flash Flood Warning 9, NWS Honolulu, HI

January 13, 2011Kalawao County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Jan 13, 2011, 6:02 AM HST for Kalawao County, Hawaii. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jan 13, 2011, 6:02 AM HST (16:02 UTC)
Expired
Jan 13, 2011, 9:00 AM HST
In force
3 hr
Issued by
NWS Honolulu, HI
Area
Storm-based polygon
Flood severity
None

County Kalawao County, HI

The radar

The Molokai radar (PHMO), 86 km from the middle of the area, began a volume at 16:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jan 13, 6:18 AM HSTFLASH FLOODKihei, HISOUTH KIHEI ROAD CLOSED BETWEEN NORTH KIHEI ROAD AND WELAKAHAO ROAD DUE TO FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Hilo, (PITO), launched 12:00Z, 4.0 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Hilo, at 12:00Z on 2011-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Hilo, at 12:00Z on 2011-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1422 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

456 
WGHW50 PHFO 131602
FFWHFO
HIC009-131900-
/O.NEW.PHFO.FF.W.0009.110113T1602Z-110113T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
602 AM HST THU JAN 13 2011

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

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

* UNTIL 900 AM HST

* AT 557 AM HST...RADAR SHOWED HEAVY RAIN MOVING OVER MAUI FROM THE 
  WEST...WITH ADDITIONAL HEAVY SHOWERS AND THUNDERSTORMS DEVELOPING 
  TO THE WEST OF THE ISLAND. MAUI CIVIL DEFENSE REPORTS THAT 
  HONOAPIILANI HIGHWAY IS CLOSED BETWEEN MAALAEA AND OLOWALU DUE TO 
  A ROCK SLIDE. IN ADDITION...HANA HIGHWAY IS CLOSED IN THE EAST 
  BOUND DIRECTION AT MALIKO GULCH.

* LOCATIONS IN THE WARNING INCLUDE ALL OF MAUI. 

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.

RUNOFF FROM THIS STORM MAY ALSO CAUSE ROCK AND MUDSLIDES IN STEEP
TERRAIN.

THIS WARNING MAY NEED TO BE EXTENDED BEYOND 900 AM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2108 15668 2095 15613 2071 15588 2047 15634
      2082 15674

$$

BIRCHARD
2 follow-up statements
242 
WGHW70 PHFO 131702
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
702 AM HST THU JAN 13 2011

HIC009-131900-
/O.CON.PHFO.FF.W.0009.000000T0000Z-110113T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI IN MAUI COUNTY-
702 AM HST THU JAN 13 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF MAUI IN
MAUI COUNTY UNTIL 900 AM HST...

AT 650 AM THUNDERSTORMS AND HEAVY RAIN CONTINUE TO FALL OVER THE 
ISLAND OF MAUI. THE HEAVIEST SHOWERS ARE FALLING OVER THE UPCOUNTRY 
AREA AND ALONG THE COAST FROM KIHEI TO HANA TO KEANAE.

MAUI CIVIL DEFENSE REPORTS HONOAPIILANI HIGHWAY IS CLOSED DUE TO 
FLOODING AND DEBRIS BETWEEN UKUMEHAME AND MAALAEA.  PORTIONS OF 
BOTH NORTH AND SOUTH KIHEI ROADS ARE ALSO CLOSED DUE TO FLOODING.

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 900 AM HST IF FLASH
FLOODING PERSISTS.

LAT...LON 2108 15668 2095 15613 2071 15588 2047 15634
      2082 15674

$$

TANABE
659 
WGHW70 PHFO 131902
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
902 AM HST THU JAN 13 2011

HIC009-131908-
/O.EXP.PHFO.FF.W.0009.000000T0000Z-110113T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MAUI IN MAUI COUNTY-
902 AM HST THU JAN 13 2011

...THE FLASH FLOOD WARNING ALLOWED TO EXPIRE FOR THE ISLAND OF MAUI 
IN MAUI COUNTY...

WEATHER RADAR AND RAIN GAGES SHOW HEAVY RAINS OVER MAUI HAVE ENDED. 
LIGHT TO MODERATE RAIN WILL CONTINUE FOR THE NEXT 1-2 HOURS.

RUNOFF IS STILL OCCURRING AND STREAMS WILL REMAIN HIGH FOR SEVERAL 
HOURS.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE ENTIRE STATE OF HAWAII 
TODAY.

LAT...LON 2108 15668 2095 15613 2071 15588 2047 15634
      2082 15674

$$

TANABE

The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 12, 2:22 PM HSTAreal Flood AdvisoryHFOKalawao6 hr
Jan 12, 3:55 PM HSTGale WarningHFO12 hr
Jan 12, 3:56 PM HSTSpecial Marine WarningHFO77 min
Jan 12, 4:59 PM HSTAreal Flood AdvisoryHFOKauai3 hr
Jan 12, 5:39 PM HSTSpecial Marine WarningHFO111 min
Jan 12, 5:51 PM HSTFlash Flood WarningHFOHonolulu6 hr
Jan 12, 6:31 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 12, 9:26 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 12, 11:28 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 12, 11:33 PM HSTFlash Flood WarningHFOHonolulu9 hr
Jan 13, 12:37 AM HSTSpecial Marine WarningHFO53 min
Jan 13, 12:45 AM HSTSevere Thunderstorm WarningHFOKalawao30 min
Jan 13, 12:54 AM HSTFlash Flood WarningHFOKalawao3 hr
Jan 13, 1:24 AM HSTSpecial Marine WarningHFO96 min
Jan 13, 1:56 AM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 13, 2:55 AM HSTSpecial Marine WarningHFO95 min
Jan 13, 3:10 AM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 13, 3:42 AM HSTFlash Flood WarningHFOKalawao3 hr
Jan 13, 4:11 AM HSTAreal Flood AdvisoryHFOKauai3 hr
Jan 13, 4:31 AM HSTSpecial Marine WarningHFO59 min
Jan 13, 5:03 AM HSTAreal Flood AdvisoryHFOKalawao3 hr
Jan 13, 5:21 AM HSTSpecial Marine WarningHFO24 min
Jan 13, 5:39 AM HSTSpecial Marine WarningHFO36 min
Jan 13, 7:42 AM HSTSpecial Marine WarningHFO63 min
Jan 13, 8:11 AM HSTSpecial Marine WarningHFO64 min
Jan 13, 8:37 AM HSTAreal Flood AdvisoryHFOHonolulu6 hr
Jan 13, 8:43 AM HSTSpecial Marine WarningHFO62 min
Jan 13, 9:18 AM HSTSpecial Marine WarningHFO65 min
Jan 13, 9:39 AM HSTSmall Craft AdvisoryHFO18 hr
Jan 13, 9:45 AM HSTSpecial Marine WarningHFO35 min

Nearby

Flash Flood Warnings in Hawaii, 2011Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.