Hawaii, 2002

Flash Flood in Hawaii, March 25, 2002

March 25, 2002 · NWS HFO · 1 event in 1 county or zone

Heavy showers fell over much of northern and eastern sections of Kauai. The rainfall was heavy enough to cause flooding of roadways leading to and from the Hanalei Bridge, which was closed for 21 hours on the 25th because of the flooding.

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.

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

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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 fell over much of northern and eastern sections of Kauai. The rainfall was heavy enough to cause flooding of roadways leading to and from the Hanalei Bridge, which was closed for 21 hours on the 25th because of the flooding.

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 24, 8:30 PM HST, 4 hours 30 minutes earlier.

Area forecast discussion, Mar 24, 8:30 PM HST, 4 hours 30 minutes before
HAWAIIAN ISLANDS SYNOPTIC DISCUSSION AND GUIDANCE
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST SUN MAR 24 2002

SUMMARY...CLOUDY OVER MOST ISLANDS MONDAY BUT WET CONDITIONS APPEAR
LIMITED TO KAUAI EXTENDING POSSIBLY TO OAHU.

DISCUSSION...THE LOW RESPONSIBLE FOR THE RAINFALL ON KAUAI AND THE
GENERAL OVERCAST OVER MOST OTHER ISLANDS IS STATIONARY. IT IS
FORECAST TO VERY SLOWLY WEAKEN BUT MOVE AWAY BY WEDNESDAY. THE AIR
MASS OVER KAUAI IS STILL UNSTABLE ENOUGH TO PRODUCE HEAVY SHOWERS
DURING THE OVERNIGHT HOURS. OTHER ISLANDS APPEAR FAR ENOUGH AWAY
TO ESCAPE ANY SIGNIFICANT PRECIPITATION WITH ONLY OAHU HAVING THE
POTENTIAL OF RECEIVING KAUAIS SHOWERS. WITH THE DEVELOPMENT OF YET
ANOTHER TROUGH WEST OF THE ISLANDS AFTER THE DISSIPATION OF THE
CURRENT ONE THE RETURN OF TRADE WINDS ANYTIME THIS WEEK APPEARS
UNLIKELY.  MATSUDA

.HFO...WARNINGS.....NONE
.      WATCHES......FLOOD FOR KAUAI
.      ADVISORIES...NONE

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 25, 1:00 AM HST to 10:00 PM HST
Where
Kauai County, Hanalei
Reported by
NEWSPAPER
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

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 2002Every state in 2002This day in weather historyWarnings in Hawaii, March 2002

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: 5287420.