Alert archive / Hawaii / Flash Flood Warnings in 2026

Flash Flood Warning 14, NWS Honolulu, HI

March 14, 2026Hawaii County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Mar 14, 2026, 6:04 PM HST for Hawaii County, Hawaii. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 14, 2026, 6:04 PM HST (04:04 UTC)
Expired
Mar 15, 2026, 1:00 AM HST
In force
7 hr
Issued by
NWS Honolulu, HI
Area
Storm-based polygon
Flood severity
None

County Hawaii County, HI

The radar

The South Shore radar (PHWA), 57 km from the middle of the area, began a volume at 04:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lihue, (PHLI), launched 00:00Z, 4.1 hours before the alert went out and 478 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lihue, at 00:00Z on 2026-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lihue, at 00:00Z on 2026-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -74 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1266 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-74 m²/s²
0-3 km storm-relative helicity
-26 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Mar 14, 4:18 PM HST, 1 hour 46 minutes earlier.

Area forecast discussion, Mar 14, 4:18 PM HST, 1 hour 46 minutes before
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In the hours before

Local storm report, Mar 14, 12:54 PM HST, 5 hours 10 minutes before
Preliminary Local Storm Report
National Weather Service Honolulu HI
1254 PM HST Sat Mar 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1242 PM     Non-Tstm Wnd Dmg Mililani Town           21.44N 158.02W
03/14/2026                   Honolulu           HI   Emergency Mngr

            Downed tree.

&&

JVC
Local storm report, Mar 14, 2:22 PM HST, 3 hours 42 minutes before
Preliminary Local Storm Report...Corrected
National Weather Service Honolulu HI
222 PM HST Sat Mar 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0220 PM     Flash Flood      Kawa Flats              19.12N 155.53W
03/14/2026                   Hawaii             HI   Emergency Mngr

            Water over Highway 11 in multiple locations.
            Towns of Naalehu and Pahala cut off.

&&

JVC
Local storm report, Mar 14, 3:00 PM HST, 3 hours 4 minutes before
Preliminary Local Storm Report
National Weather Service Honolulu HI
300 PM HST Sat Mar 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0234 PM     Flash Flood      1 NNW Olowalu           20.83N 156.63W
03/14/2026                   Maui               HI   County Official

            Honoapiilani Hwy (Hwy 30) closed from
            Kuihelani Hwy to the Olowalu dump due to
            flooding, swift water, and the integrity of
            the Ukuhehame bridge.

&&

JVC
Local storm report, Mar 14, 3:02 PM HST, 3 hours 2 minutes before
Preliminary Local Storm Report
National Weather Service Honolulu HI
302 PM HST Sat Mar 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0244 PM     Flash Flood      Hawaii Kai              21.29N 157.72W
03/14/2026                   Honolulu           HI   Emergency Mngr

            Roof blown off residence.

&&

JVC
Local storm report, Mar 14, 3:47 PM HST, 2 hours 17 minutes before
Preliminary Local Storm Report
National Weather Service Honolulu HI
347 PM HST Sat Mar 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0346 PM     Flash Flood      Kihei                   20.74N 156.45W
03/14/2026                   Maui               HI   Public

            South Kihei Rd collapsed.

&&

JVC

The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 14, 3:18 PM HSTAreal Flood AdvisoryHFOKalawao35 min
Mar 14, 3:53 PM HSTFlash Flood WarningHFOKalawao7 hr
Mar 14, 4:39 PM HSTAreal Flood AdvisoryHFOHawaii85 min
Mar 14, 6:32 PM HSTAreal Flood AdvisoryHFOHawaii3 hr
Mar 14, 9:13 PM HSTFlash Flood Warning Considerable damage threatHFOHawaii8 hr
Mar 14, 10:40 PM HSTSpecial Marine WarningHFO2 hr
Mar 14, 11:18 PM HSTSpecial Marine WarningHFO117 min
Mar 15, 12:06 AM HSTSpecial Marine WarningHFO114 min
Mar 15, 12:41 AM HSTSpecial Marine WarningHFO109 min
Mar 15, 1:10 AM HSTSpecial Marine WarningHFO93 min
Mar 15, 2:18 AM HSTSpecial Marine WarningHFO117 min
Mar 15, 3:42 AM HSTHigh Surf AdvisoryHFOHawaii24 hr
Mar 15, 4:09 AM HSTSpecial Marine WarningHFO2 hr
Mar 15, 5:22 AM HSTSpecial Marine WarningHFO113 min
Mar 15, 6:00 AM HSTSpecial Marine WarningHFO2 hr

Nearby

Flash Flood Warnings in Hawaii, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.