1 heavy rain, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
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 Apr 2, 10:00 AM HST, 3 hours 17 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 1000 AM HST SUN APR 2 2006 .SYNOPSIS... THE UPPER LOW NEAR KAUAI WILL BE WEAKENING TODAY WHILE IT WORKS ITS WAY DOWN THE MAIN HAWAIIAN ISLANDS. THE TRADE WINDS ARE STILL SLATED TO RETURN TONIGHT. HOWEVER IT COULD BE WET TRADES THIS WEEK AS A FRESH TROUGH ALOFT SETTLES OVER THE ISLANDS. && .DISCUSSION... A THUNDERSTORM HAS DEVELOPED AND MOVED ONSHORE NEAR KANEOHE THIS MORNING...AND TOWERING CUMULUS ARE NOTED ON THE WINDWARD SIDE OF OAHU...AND OVER CENTRAL KAUAI. HAVE MODIFIED SEVERAL GRIDS THIS MORNING...AND WILL LIKELY CONTINUE TO TWEAK THE GRIDS THROUGHOUT THE DAY. GAGES AND RADAR INDICATE RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR WITH THIS STORM...PROMPTING THE ISSUANCE OF AN URBAN AND SMALL STREAM FLOOD ADVISORY FOR THE WINDWARD SIDE OF OAHU. ANTICIPATE SIMILAR EVENTS TODAY FOR OAHU...KAUAI AND NIIHAU...THUS THE FLASH FLOOD WATCH CONTINUES FOR THESE ISLANDS. EARLIER THIS MORNING...THE KAUAI RADAR WAS PICKING UP FALSE RETURNS ON NORTHERN OAHU. A NEW CLUTTER SUPPRESSION WAS ADDED TO THE KAUAI RADAR JUST BEFORE 8 AM THIS MORNING TO CORRECT THIS ISSUE. MAIN CHANGES THIS MORNING ARE TO THE WINDS THROUGHOUT THE FORECAST PERIOD. EXPECT THE EAST WINDS TODAY TO STRENGTHEN THROUGHOUT THE WEEK...BRINGING MORE TYPICAL TRADE WIND WEATHER TO THE STATE. SOME SHORT TERM MODIFICATIONS HAVE BEEN MADE TO THE POP/SKY/WX GRIDS. TEMPERATURES AND RELATED FIELDS HAVE ALSO BEEN MODIFIED TO BRING THEM MORE INLINE WITH THE CURRENT FORECAST PHILOSOPHY OF A RETURN TO THE TRADE WIND WEATHER PATTERN THIS WEEK. && .HFO WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH KAUAI NIIHAU OAHU THROUGH 8 PM TONIGHT. && M BALLARD
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Heavy showers and isolated thunderstorms over western and central sections of Molokai produced ponding of roadways, and small stream and drainage ditch flooding. No serious property damage or injuries were reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Hawaii in 2006Every state in 2006This day in weather historyWarnings in Hawaii, April 2006
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: 5496451.