Heavy Rain, Hawaii
- When
- March 21, 11:35 PM HST to March 22, 5:15 AM HST
- Where
- Hawaii County, 1.59 mi SE of Upolu Airport to 3.64 mi SE of Papaaloa
- Reported by
- Official NWS Observations
- Coordinates
- 20.252, -155.855
Heavy Rain in Hawaii, March 21 to 22, 2010
A surface trough forming over the Aloha State helped initiate heavy rain in parts of Maui and the Big Island of Hawaii. However, there were no reports of serious property damage or injuries.
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
- 2
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 surface trough forming over the Aloha State helped initiate heavy rain in parts of Maui and the Big Island of Hawaii. However, there were no reports of serious property damage or injuries.
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 21, 8:30 PM HST, 3 hours 5 minutes earlier.
Area forecast discussion, Mar 21, 8:30 PM HST, 3 hours 5 minutes before
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</html>The radar
The national radar mosaic for the moment the first event began.
Event by event
2 heavy rain. Local standard time, as filed.
Heavy Rain, Maui
- When
- March 22, 5:40 AM HST to 8:14 AM HST
- Where
- Maui County, 0.6 mi SE of Nahiku to 1.28 mi ENE of Kipahulu
- Reported by
- Official NWS Observations
- Coordinates
- 20.824, -156.093
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
- Damaging Wind in Alabama, March 21, 2010
- Winter Weather in Texas, March 21, 2010
- Astronomical Low Tide in Louisiana, March 21 to 22, 2010
- Winter Weather in Arkansas, March 21, 2010
- Hail and Damaging Winds in Georgia, March 21, 2010
- Astronomical Low Tide in Texas, March 21, 2010
- Hail and Damaging Wind in Florida, March 21, 2010
- Marine Thunderstorm Winds in South Atlantic Coastal Waters, March 21, 2010
- Hail and Damaging Wind in South Carolina, March 21, 2010
- Heavy Snow in Oklahoma, March 21, 2010
- High Wind in Montana, March 21, 2010
- Flood in Missouri, March 21 to 22, 2010
More
Every storm in Hawaii in 2010Every state in 2010This day in weather historyWarnings in Hawaii, March 2010
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 2026-10-01. Each event’s entry at NCEI: 214317, 214318.