Flood, Hawaii
- When
- November 26, 11:35 PM HST to November 27, 2:35 AM HST
- Where
- Hawaii County, Hilo
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 19.602, -155.523 (the zone’s center; the record gives no point)
Flood in Hawaii, November 26 to 27, 2001
Heavy rain and showers produced stream and drainage ditch flooding and ponding of roadways in the South Hilo and Puna districts on the island of Hawaii. No serious property damage or injuries were reported.
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
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 produced stream and drainage ditch flooding and ponding of roadways in the South Hilo and Puna districts on the island of Hawaii. No serious property damage or injuries were reported.
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 Nov 26, 8:30 PM HST, 3 hours 5 minutes earlier.
Area forecast discussion, Nov 26, 8:30 PM HST, 3 hours 5 minutes before
HAWAIIAN ISLANDS SYNOPTIC DISCUSSION AND GUIDANCE NATIONAL WEATHER SERVICE HONOLULU HI 830 PM HST MON NOV 26 2001 SUMMARY...KONA LOW PRESSURE FORMING WEST OF KAUAI WILL BRING HEAVY SHOWERS AND THUNDERSTORMS UP OVER THE STATE ALONG WITH GALE FORCE SOUTHERLY WINDS. THESE CONDITIONS WILL LIKELY CONTINUE INTO TUESDAY AS THE LOW PRESSURE CENTER GETS ORGANIZED. WINDS AND HEAVY RAINFALL SHOULD EASE OFF TUESDAY NIGHT AS THE LOW BEGINS TO PULL AWAY TO THE WEST. DISCUSSION...A KONA LOW IS IN THE FORMATION PROCESS WEST OF THE STATE. SOUTHERLY FLOW EAST OF THE DEVELOPING LOW IS EXTREMELY STRONG...WITH DOPPLER RADAR SHOWING WINDS IN EXCESS OF 50 TO 60 KT AT 1400 FEET OVER THE LEE SLOPES OF MT WAIALEALE...AND 40 TO 50 KT OVER THE WATERS SOUTH OF KAUAI AT 500 FT ELEVATION. A HIGH WIND WARNING HAS BEEN ISSUED FOR THE ISLANDS FROM KAUAI TO MAUI COUNTY AND A GALE WARNING FOR ALL HAWAIIAN WATERS. MEANWHILE THE FRONT... OR LEADING CONVERGENCE BAND OUT AHEAD OF THE DEVELOPING LOW IS NOW OVER WESTERN KAUAI...WITH HEAVY RAINFALL BEING REPORTED AT KOKEE AND HANALEI. DOPPLER RADAR SHOWS HEAVY RAINS OVER AND SOUTH OF KAUAI... AND MOVING RAPIDLY NORTH OVER SOUTHWEST KAUAI. WITH THESE HEAVY SHOWERS TRAINING...FLASH FLOODING IS POSSIBLE IF NOT LIKELY IN THIS AREA AND SO A FLASH FLOOD WARNING HAS BEEN ISSUED FOR SOUTHWEST KAUAI. ALSO...WITH THE ITCZ...INTER-TROPICAL CONVERGENCE ZONE... BEING PULLED NORTHWARD OVER THE STATE BY THIS DEVELOPING KONA LOW... HEAVY RAINS AND THUNDERSTORMS MAY POSSIBLY MOVE UP OVER ANY PART OF THE STATE OVER THE NEXT 24 TO 48 HOURS. THUS THE FLASH FLOOD WATCH HAS BEEN EXTENDED TO THE ENTIRE STATE AT 830 PM HST. FORECAST MODELS KEEP THIS DEVELOPING KONA LOW NEARBY TO KAUAI THROUGH TUESDAY...THEN SLOWLY EASE IT OFF TO THE WEST. THIS SHOULD ALLOW THE WINDS AND HEAVY RAIN TO RELAX BEGINNING TUESDAY NIGHT. BUT CLOUDS AND SHOWERS WILL LIKELY CONTINUE TO BE A FACTOR IN OUR WEATHER THROUGH THE END OF THIS WEEK. SURF REMAINS HIGH ON THE NORTHWEST FACING SHORES OF ALL THE ISLANDS. BUOY 51001 IS CURRENTLY SHOWING SOME INCREASE IN SWELL HEIGHTS MOVING PAST IT AT THIS TIME...SO SURF IS EXPECTED TO REMAIN IN THE 10 TO 25 FOOT RANGE WITH OCCASIONAL HIGHER SETS THROUGH TUESDAY MORNING AT LEAST. FARRELL .PHFO.....WARNINGS.....FLOOD FOR SW KAUAI. HIGH WIND ENTIRE STATE . GALE FOR ALL HAWAII WATERS . WATCHES......FLOOD FOR ENTIRE STATE . ADVISORIES...HIGH SURF NORTHWEST SHORES . OUTLOOKS.....HYDROLOGIC REPLACED WITH WATCH AT 830 PM
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
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
- Tornado and Flash Flood in Tennessee, November 26 to 27, 2001
- Tornadoes in Louisiana, November 26 to 27, 2001
- Tornado and Hail in Mississippi, November 26, 2001
- Tornado in Arkansas, November 26, 2001
- Tornado in Arkansas, November 26, 2001
- Tornado in Arkansas, November 26, 2001
- Winter Storm in Minnesota, November 26 to 27, 2001
- Tornadoes in Louisiana, November 26, 2001
- Winter Storm in Minnesota, November 26 to 27, 2001
- Damaging Winds in Mississippi, November 26, 2001
- Tornadoes in Louisiana, November 26, 2001
- Tornado in Louisiana, November 26, 2001
More
Every storm in Hawaii in 2001Every state in 2001This day in weather historyWarnings in Hawaii, November 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: 5273107.