Alert archive / Hawaii / Flash Flood Warnings in 2026

Flash Flood Warning 44, NWS Honolulu, HI

August 16, 2026Honolulu County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Aug 16, 2026, 4:36 AM HST for Honolulu 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
Aug 16, 2026, 4:36 AM HST (14:36 UTC)
Expired
Aug 16, 2026, 12:00 PM HST
In force
7 hr
Issued by
NWS Honolulu, HI
Area
Storm-based polygon
Flood severity
None

County Honolulu County, HI

The radar

The Molokai radar (PHMO), 88 km from the middle of the area, began a volume at 14:37 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.

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 Aug 16, 2:16 AM HST, 2 hours 20 minutes earlier.

Area forecast discussion, Aug 16, 2:16 AM HST, 2 hours 20 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 5:17 PM HSTSpecial Marine WarningHFO118 min
Aug 15, 9:53 PM HSTFlash Flood Warning EmergencyCatastrophic damage threatHFOHawaii9 hr
Aug 15, 10:56 PM HSTAreal Flood AdvisoryHFOHawaii9 hr
Aug 15, 11:03 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Aug 16, 2:07 AM HSTFlash Flood WarningHFOKalawao3 hr
Aug 16, 2:36 AM HSTAreal Flood AdvisoryHFOKalawao12 hr
Aug 16, 2:44 AM HSTAreal Flood AdvisoryHFOKalawao9 hr
Aug 16, 3:52 AM HSTAreal Flood AdvisoryHFOHonolulu44 min
Aug 16, 4:44 AM HSTAreal Flood AdvisoryHFOKalawao9 hr
Aug 16, 7:39 AM HSTAreal Flood AdvisoryHFOHawaii3 hr
Aug 16, 8:10 AM HSTSmall Craft AdvisoryHFO6 hr
Aug 16, 8:32 AM HSTAreal Flood AdvisoryHFOKauai9 hr
Aug 16, 11:46 AM HSTFlash Flood WarningHFOKauai6 hr
Aug 16, 11:50 AM HSTFlash Flood WarningHFOKalawao4 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; radar from the NEXRAD Level II archive.