Hawaii, 2001

High Surf in Hawaii, September 21, 2001

September 21, 2001 · NWS HFO · 1 event in 1 county or zone

A trade wind swell caused surf of 4 to 6 feet along the east-facing shores of Kauai.

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

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.

A trade wind swell caused surf of 4 to 6 feet along the east-facing shores of Kauai.

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 Sep 21, 4:41 AM HST, 3 hours 19 minutes earlier.

Area forecast discussion, Sep 21, 4:41 AM HST, 3 hours 19 minutes before
NARRATIVE SYNOPTIC DISCUSSION FOR WAKE ISLAND

AT 1232 UTC...TROPICAL STORM FRANCISCO WAS CENTERED ABOUT 860 MILES
WEST OF WAKE NEAR 19.4N 151.4E. FRANCISCO IS INTENSIFYING BUT MOVING
AWAY TO THE NORTHWEST. SEE JTWC WARNINGS FOR DETAILS.

A TROUGH ALOFT IS CREATING UNSTABLE CONDITIONS AROUND WAKE. CLOUDS
ARE SCATTERED IN YOUR AREA BUT SOME OF THESE CLOUDS ARE ARE TOWERING
CUMULUS AND CUMULONIMBUS CLOUDS THAT COULD PRODUCE BRIEF HEAVY
SHOWERS OR EVEN THUNDERSTORMS. WINDS WILL BLOW OUT OF THE EAST AT 10
TO 15 KNOTS.

NO SIGNIFICANT SWELL IS EXPECTED.

The radar

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

Open the radar archive at this moment

Event by event

1 high surf. Local standard time, as filed.

High Surf, Kauai

When
September 21, 8:00 AM HST to 5:00 PM HST
Where
Kauai forecast zone
Reported by
TRAINED SPOTTER
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.

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, September 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: 5266128.