Hawaii, 2001

Flood in Hawaii, May 19, 2001

May 19, 2001 · NWS HFO · 1 event in 1 county or zone

Heavy showers caused minor stream and drainage ditch flooding and ponding of roadways in windward communities on the Garden Isle of Kauai. There were no reports of injuries or property damage.

Where it happened

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.

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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 showers caused minor stream and drainage ditch flooding and ponding of roadways in windward communities on the Garden Isle of Kauai. There were no reports of injuries or property damage.

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 May 19, 4:00 PM HST, 2 hours 55 minutes earlier.

Area forecast discussion, May 19, 4:00 PM HST, 2 hours 55 minutes before
AFDHI
HAWAIIAN ISLANDS SYNOPTIC DISCUSSION AND GUIDANCE
NATIONAL WEATHER SERVICE HONOLULU HI
4 PM HST SAT MAY 19 2001

SUMMARY...MOSTLY SUNNY MORNINGS FOLLOWED BY AFTERNOON CLOUDS AND
SOME SHOWERS DEVELOPING...MAINLY OVER MOUNTAIN AND INTERIOR
SECTIONS. LIGHT EAST WINDS WITH DAY TIME SEA BREEZES FOR MOST
ISLANDS.

DISCUSSION...CONVECTION ONCE AGAIN DEVELOPED OVER THE INTERIOR AND
MOUNTAIN SECTIONS OF ALL ISLANDS THIS AFTERNOON. THE DEVELOPMENT IS
A TAD LESS VIGOROUS COMPARING TO FRIDAYS...THOUGH AM NOT SURPRISED
IF ISOLATED HEAVY SHOWERS OCCUR IN THE NEXT FEW HOURS. A WEAKENING
FRONT REMAINS ABOUT 600 NM NORTHWEST OF THE ISLANDS...WITH A WEAK
RIDGE BETWEEN THIS FRONT AND THE ISLANDS. FORECAST CHARTS ARE
CONSISTENT IN TILTING THIS RIDGE MORE EAST-WEST ORIENTED IN TIME...
THUS ALLOWING THE WINDS TO TURN MORE EAST. ON THE OTHER HAND...THE
CLOSE PROXIMITY OF THE RIDGE WILL KEEP WINDS LIGHT THROUGH THE
FORECAST PERIOD. HENCE THE LAND-SEA BREEZE TYPE WEATHER REGIME WILL
CONTINUE...WITH MOSTLY CLEAR SKIES DURING THE LATE NIGHT AND MORNING
HOURS...AND AFTERNOON CLOUDS AND SHOWERS MAINLY OVER THE INTERIOR
AND MOUNTAIN SECTIONS. THE LIGHT EAST WINDS MAY CARRY CLOUDS AND
SHOWERS FROM THE EAST AFFECTING THE WINDWARD SECTIONS AT TIMES
COMPLICATING MATTERS.

IN THE EXTENDED PERIOD...THIS SURFACE RIDGE IS EXPECTED TO REMAIN
JUST NORTH OF THE ISLANDS THROUGH THE PERIOD. THUS SIMILAR WEATHER
CONDITIONS ARE EXPECTED TO PREVAIL.

SOUTH SWELL IS SLOWLY ON THE WAY DOWN...THOUGH THE SURF HEIGHTS
STILL WARRANT AN ADVISIORY AT THIS POINT.  HUI

.PHFO......WARNINGS.....NONE
.          WATCHES......NONE
.          ADVISORIES...HIGtH SURF SOUTH SHORES

The radar

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

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Kauai

When
May 19, 6:55 PM HST to 9:45 PM HST
Where
Kauai County, Kilauea
Reported by
OFFICIAL NWS OBS.
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

More

Every storm in Hawaii in 2001Every state in 2001This day in weather historyWarnings in Hawaii, May 2001

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: 5244188.