Heavy Rain, Hawaii
- When
- July 25, 2:35 PM HST to 8:00 PM HST
- Where
- Hawaii County, 2 mi SE of Kailua Kona
- Reported by
- NEWSPAPER
- Coordinates
- 19.602, -155.523 (the zone’s center; the record gives no point)
Heavy Rain in Hawaii, July 25, 2004
Heavy showers that persisted over portions of West Hawaii produced ponding of roadways, and small stream and drainage ditch flooding. Also, the rainfall was severe enough to cause the evacuation of three homes in Kealakekua, to flood 10 to 15 rooms at a middle school in Captain Cook, and to damage coffee plants at Greenwell Farm.
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 showers that persisted over portions of West Hawaii produced ponding of roadways, and small stream and drainage ditch flooding. Also, the rainfall was severe enough to cause the evacuation of three homes in Kealakekua, to flood 10 to 15 rooms at a middle school in Captain Cook, and to damage coffee plants at Greenwell Farm. Damage estimates were not available. No serious 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 Jul 25, 10:00 AM HST, 4 hours 35 minutes earlier.
Area forecast discussion, Jul 25, 10:00 AM HST, 4 hours 35 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 1000 AM HST SUN JUL 25 2004 .SYNOPSIS... HIGH PRESSURE NORTHEAST OF THE STATE WILL PROVIDE MODERATE TRADE WINDS THROUGH THE WEEK. SHOWERS WILL FAVOR WINDWARD AND MAUKA AREAS...THOUGH A FEW MAY BLOW LEEWARD IN THE OVERNIGHT HOURS. INCREASED SHOWER ACTIVITY IS EXPECTED LATER IN THE WORK WEEK AS THE REMNANTS OF CELIA PASS OVER THE SOUTHERN PORTION OF THE ISLAND CHAIN. THESE SHOWERS MAY BECOME ENHANCED BY AN UPPER LEVEL LOW FORECAST TO DEVELOP NORTHWEST OF THE ISLANDS. && .DISCUSSION... MODERATE TRADE WINDS WILL PERSIST THROUGH THE WEEK...THANKS TO A NEARLY STATIONARY AREA OF HIGH PRESSURE NORTHEAST OF THE STATE. THUS...SHOWER ACTIVITY WILL FAVOR WINDWARD AND MAUKA PORTIONS OF THE STATE WITH A FEW SHOWERS BRIEFLY SPREADING LEEWARD. AN UPPER LEVEL LOW SEVERAL HUNDRED MILES NORTHWEST OF KAUAI HAS GENERATED MODEST INSTABILITY OVER THE ISLANDS. THIS INSTABILITY IS EVIDENT IN THE OVERNIGHT SOUNDINGS WHICH SHOW A GOOD LOW LEVEL MOISTURE UP TO 7500 FEET. GIVEN THESE CONDITIONS...EXPECT A LITTLE MORE SHOWER ACTIVITY THAN HAS BEEN THE CASE OVER THE PAST SEVERAL DAYS. NO PROBLEMS ARE EXPECTED FROM THESE SHOWERS AS THE MODERATE TRADE WINDS MOVE THEM ALONG. HOWEVER...THE LEEWARD COAST OF THE BIG MAY EXPERIENCE SOME HEAVIER SHOWERS THIS AFTERNOON. THIS DID OCCUR YESTERDAY SOUTH OF KAILUA KONA...AND SOME SHOWERS LINGERED IN THE KEALAKEKUA VICINITY OVERNIGHT. THE CURRENT FORECAST ADVERTISES SCATTERED SHOWERS IN THIS AREA THIS AFTERNOON...AND WILL WATCH THE AREA FOR SIGNS OF HEAVY SHOWER DEVELOPMENT TODAY. THE NEXT FORECAST CHALLENGE IS THE ARRIVAL TIME AND IMPACTS OF THE REMNANTS OF CELIA. THIS DECAYED TROPICAL SYSTEM IS ESSENTIALLY JUST AN AREA OF ENHANCED SHOWERS...BUT IT MAY STILL DELIVER SOME HEAVY SHOWERS LATER IN THE WORK WEEK. AN UPPER LEVEL LOW FORECAST TO DEVELOP TO THE NORTHWEST OF KAUAI WILL CREATE MODERATELY UNSTABLE CONDITIONS OVER THE ISLANDS AND SUPPORT THE POSSIBILITY OF HEAVY SHOWERS. THE LATEST RUN OF THE GFS MODEL SLOWS THE ARRIVAL OF CELIAS REMNANTS TO LATE THURSDAY...NEARLY 12 HOURS SLOWER THAN THE PREVIOUS MODEL RUN. THE FOCUS THE ENHANCED MOISTURE IS OVER THE SOUTHERN PORTION OF THE ISLAND CHAIN...NAMELY THE BIG ISLAND AND MAUI. THE CURRENT FORECAST PACKAGE CONTAINS A CHANCE OF THUNDERSTORMS LATE WEDNESDAY NIGHT. ADJUSTMENTS FOR THE AFTERNOON PACKAGE WILL LIKELY INCLUDE PUSHING THE ARRIVAL TIME BACK TO THURSDAY WITH CONDITIONS DRYING OUT FOR THE WEEKEND. && .HFO WATCHES/WARNINGS/ADVISORIES... NONE && WROE
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 heavy rain. Local standard time, as filed.
What these are
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Flood in Texas, July 25 to 26, 2004
- Flash Flooding in West Virginia, July 25 to 26, 2004
- Flash Flooding and Flood in New Mexico, July 25 to 26, 2004
- Flash Flood and Damaging Winds in Georgia, July 25, 2004
- Damaging Winds in Texas, July 25, 2004
- Hail and Damaging Wind in Alabama, July 25, 2004
- Flash Flood in North Carolina, July 25, 2004
- Flash Flooding and Damaging Winds in Alabama, July 25, 2004
- Damaging Wind in Tennessee, July 25, 2004
- Damaging Wind in Tennessee, July 25, 2004
- Damaging Wind in Louisiana, July 25, 2004
- Damaging Winds in Mississippi, July 25, 2004
More
Every storm in Hawaii in 2004Every state in 2004This day in weather historyWarnings in Hawaii, July 2004
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: 5431583.