Hawaii, 2006

Flash Flood in Hawaii, March 26, 2006

March 26, 2006 · NWS HFO · 1 event in 1 county or zone

Heavy rain and showers in eastern and southern areas of Kauai produced flooding conditions. Sections of Kuhio Highway between Anahola and Lihue became inundated, especially parts of the roadway near Kealia.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS HFO wrote it up.

Heavy rain and showers in eastern and southern areas of Kauai produced flooding conditions. Sections of Kuhio Highway between Anahola and Lihue became inundated, especially parts of the roadway near Kealia. There were no reports of serious property damage or injuries.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Honolulu, HI wrote its last area forecast discussion before the first event at Mar 26, 4:00 AM HST, 50 minutes earlier.

Area forecast discussion, Mar 26, 4:00 AM HST, 50 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST SUN MAR 26 2006

.SYNOPSIS...
UNSTABLE WET WEATHER WILL CONTINUE ACROSS THE MAIN HAWAIIAN ISLANDS
TODAY AND THROUGH MOST OF THE NEXT WEEK AS A TROUGH OF LOW PRESSURE
PERSISTS TO OUR WEST. PARTICULARLY HEAVY RAINFALL MAY OCCUR TODAY
THROUGH MONDAY THEN WEDNESDAY THROUGH THURSDAY.

&&

.DISCUSSION...
A DEEP SOUTHWEST TO NORTHEAST ORIENTED TROUGH WEST OF THE MAIN
HAWAIIAN ISLANDS WILL KEEP THE POTENTIAL HIGH FOR HEAVY RAINFALL AT
TIMES THROUGH THE FORECAST PERIOD. SHORT WAVE IMPULSES ROTATE
THROUGH THE BASE OF THE LARGER TROUGH AND MOVE OVER THE
STATE...DRAGGING DEEP TROPICAL MOISTURE INTO THE PERPETUALLY
UNSTABLE ATMOSPHERE OVER THE ISLANDS AND TRIGGERING THE HEAVY
RAINFALL BURSTS.

MODELS SHOW THE NEXT IMPULSE AFFECTING THE ISLANDS TODAY THROUGH
MONDAY...WITH A SECOND IMPULSE EXPECTED WEDNESDAY THROUGH THURSDAY.
SATELLITE AND RADAR SHOW SHOWERS WITH THIS NEXT IMPULSE ARE ALREADY
DEVELOPING OVER THE KAUAI CHANNEL AND ACROSS SOUTHEAST PORTIONS OF
KAUAI. THIS ACTIVITY WILL LIKELY INTENSIFY THROUGH THE DAY TODAY AND
SPREAD EASTWARD. LOW LEVEL FLOW WILL REMAIN SOUTHERLY THROUGH
MIDWEEK...SO HAWAII WEATHER WILL BE WETTER THAN NORMAL EVEN BETWEEN
IMPULSES. THE PALL OF BROKEN TO OVERCAST MIDDLE AND HIGH CLOUDS LIE
ALONG THE EASTERN FLANK OF THE TROUGH AND WILL LIKELY BLOCK THE SUN
INTO EARLY NEXT WEEK.

AFTER THURSDAY...NOGAPS AND GFS WANT TO PUSH THE TROUGH TO THE EAST
OF THE ISLANDS. THIS WOULD BRING DRIER WEATHER TO THE STATE BY NEXT
WEEKEND. TRADE WINDS SHOULD GRADUALLY RETURN BY NEXT WEEKEND...BUT
RAINFALL WILL STILL LIKELY BE A BIT HEAVIER THAN NORMAL AS ALL THE
MOISTURE BROUGHT UP BY THE SOUTHERLIES FROM EARLIER IN THE WEEK GETS
CARRIED BACK WESTWARD OVER THE ISLANDS.

&&

.MARINE...
NEAR HIGH SURF CONDITIONS OF 8 FEET ON THE EAST FACING SHORES
EXPOSED TO THE NORTH SWELL WILL DECREASE SLOWLY THROUGH THE DAY
TODAY.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH SUNDAY AFTERNOON THROUGH LATE MONDAY NIGHT FOR
MAUNA KEA AN MAUNA LOA.
FLASH FLOOD WATCH THROUGH LATE MONDAY NIGHT FOR ALL ISLANDS.

POWELL

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Kauai

When
March 26, 4:50 AM HST to 9:00 AM HST
Where
Kauai County, Anahola
Reported by
EMERGENCY MANAGER
Coordinates
22.117, -159.300

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Hawaii in 2006Every state in 2006This day in weather historyWarnings in Hawaii, March 2006

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5495613.