Heavy Rain, Hawaii
- When
- May 31, 10:28 PM HST to 11:43 PM HST
- Where
- Hawaii County, 2.24 mi NE of Waikoloa Village to 0.75 mi S of Waikoloa Beach Resort
- Reported by
- Official NWS Observations
- Coordinates
- 19.955, -155.758
Heavy Rain in Hawaii, May 31, 2014
An upper trough slowly losing its grip on the Aloha State as it moved east helped to cause one last round of heavy showers over the lee side of the Big Island of Hawaii. The rain led to small stream and drainage ditch flooding, and ponding on roadways.
Where it happened
Every event with a place to put it. 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.
An upper trough slowly losing its grip on the Aloha State as it moved east helped to cause one last round of heavy showers over the lee side of the Big Island of Hawaii. The rain led to small stream and drainage ditch flooding, and ponding on roadways. No serious injuries or property damage 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 May 31, 8:45 PM HST, 1 hour 43 minutes earlier.
Area forecast discussion, May 31, 8:45 PM HST, 1 hour 43 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 845 PM HST SAT MAY 31 2014 .SYNOPSIS... A TROUGH APPROACHING FROM THE NORTHWEST WILL DISRUPT THE TRADE WIND FLOW SUNDAY AND MONDAY...ALLOWING FOR AFTERNOON SEA BREEZES... MUGGY CONDITIONS... AND SPOTTY SHOWERS. TRADE WINDS ARE EXPECTED TO RETURN TUESDAY BRINGING MORE COMFORTABLE CONDITIONS THROUGH THE WEEK. && .DISCUSSION... THE EVENING RADAR DATA SHOWS A FEW DISSIPATING SHOWERS OVER THE LEEWARD SLOPES OF THE BIG ISLAND... AND SPOTTY SHOWERS MOVING ALONG WITH TRADE WINDS OVER THE WINDWARD SLOPES AND COASTAL WATERS. UPSTREAM OF THE BIG ISLAND... SATELLITE IMAGERY DEPICTS A SHOWERY STRETCH OF LOW CLOUDS HEADING FOR THE EASTERN HALF OF THE STATE. THIS AREA WILL BRING INCREASING SHOWERS TONIGHT TO WINDWARD AREAS FROM THE BIG ISLAND TO OAHU. TRADE WINDS WILL BE ON THE DECLINE SUNDAY AND MONDAY AS A SURFACE TROUGH PASSES THE ISLANDS TO THE NORTH. THE TRADES WILL HOLD ON NEAR THE BIG ISLAND... BUT THE FLOW WILL VEER OUT OF THE EAST SOUTHEAST OVER THE SMALLER ISLANDS...ALLOWING AFTERNOON LEEWARD SEA BREEZES AND NIGHTTIME LAND BREEZES TO FORM. MUGGY CONDITIONS WILL PREVAIL THROUGH MONDAY. THE SAME MOISTURE MOVING INTO THE WINDWARD WATERS TONIGHT WILL LINGER SUNDAY AND MONDAY CONTINUING PASSING SHOWERS TO WINDWARD AREAS. LEEWARD AREAS WILL SEE PARTLY CLOUDY SKIES OVERNIGHT WITH CLOUDY SKIES IN THE AFTERNOONS AND PASSING SHOWERS. THE TROUGH WILL LIFT NORTH TUESDAY ALLOWING HIGH PRESSURE TO NUDGE OVER THE STATE...BRINGING BACK EASTERLY TRADE WINDS. TRADES WILL BRING MORE COMFORTABLE... LESS HUMID CONDITIONS TO THE ISLANDS WITH SHOWERS AGAIN FOCUSED OVER WINDWARD SLOPES. MODELS ARE DEPICTING FLUCTUATING AMOUNTS OF MOISTURE MOVING ACROSS THE ISLANDS THROUGH THE WEEK...POSSIBLY INCREASING WINDWARD SHOWERS TUESDAY NIGHT AND THEN AGAIN THURSDAY NIGHT. && .AVIATION... OVERNIGHT...VFR CONDITIONS WILL PREVAIL AT ALL ISLAND TERMINALS. BRIEF MVFR CONDITIONS IN PASSING TRADE SHOWERS CAN BE EXPECTED... ESPECIALLY FOR WINDWARD AND MOUNTAIN AREAS. NO AIRMETS ARE EXPECTED FOR THE PERIOD. TRADE WINDS SHOULD EASE UP SLIGHTLY AND VEER ESE SUNDAY AS A SURFACE TROUGH APPROACHES THE ISLANDS FROM THE NW. LEEWARD AND INTERIOR AREAS OF THE ISLANDS MAY SEE AFTERNOON CLOUD BUILD-UPS. && .MARINE... WINDS ARE EXPECTED TO DECREASE TONIGHT AND THE SCA WAS DROPPED SATURDAY AFTERNOON. 20 KT WINDS WILL LINGER TONIGHT AND SUNDAY OVER THE ALENUIHAHA CHANNEL...ALONG THE HAMAKUA COASTAL WATERS...AND THE NEAR-SHORE WINDWARD WATERS OF MAUI AND MOLOKAI. EAST FACING SHORES WILL SEE A DROP IN SURF THIS WEEKEND AS TRADE WINDS DIMINISH. A SMALL SOUTH SWELL WILL FILL IN SUNDAY AND MONDAY...THEN DECLINE THROUGH MIDWEEK. && .HFO WATCHES/WARNINGS/ADVISORIES... NONE. && MORRISON
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
- Marine Strong Wind in Eastern Pacific Coastal Waters, May 31, 2014
- Rip Current in North Carolina, May 31, 2014
- Lightning Strikes in Minnesota, May 31, 2014
- Damaging Winds in Iowa, May 31, 2014
- Tornadoes and Hail in Montana, May 31, 2014
- Tornado and Hail in Wyoming, May 31, 2014
- Hail and Damaging Winds in Montana, May 31, 2014
- Hail and Damaging Wind in Wyoming, May 31, 2014
- Hail and Damaging Wind in Nebraska, May 31, 2014
- Flash Flooding in Minnesota, May 31, 2014
- Damaging Winds in Minnesota, May 31, 2014
- Flash Flooding in South Carolina, May 31, 2014
More
Every storm in Hawaii in 2014Every state in 2014This day in weather historyWarnings in Hawaii, May 2014
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: 512645.