Alert archive / Hawaii / Flash Flood Warnings in 2026

Flash Flood Warning 6, NWS Honolulu, HI

February 21, 2026Kalawao County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Feb 21, 2026, 8:16 PM HST for Kalawao County, Hawaii. It was in force for 4 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: Feb 21, 2026, 8:16 PM HST (06:16 UTC)
Expired: Feb 22, 2026, 12:24 AM HST
In force: 4 hr
Issued by: NWS Honolulu, HI
Area: Storm-based polygon
Flood severity: None

County Kalawao County, HI

The radar

The Molokai radar (PHMO), 24 km from the middle of the area, began a volume at 06:19 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 Feb 21, 3:53 PM HST, 4 hours 23 minutes earlier.

Area forecast discussion, Feb 21, 3:53 PM HST, 4 hours 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 21, 3:59 PM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Feb 21, 5:39 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Feb 21, 6:02 PM HST	Areal Flood Advisory	HFO	Kalawao	2 hr
Feb 21, 8:00 PM HST	Areal Flood Advisory	HFO	Kalawao	16 min
Feb 21, 11:11 PM HST	Special Marine Warning	HFO		105 min
Feb 22, 3:34 AM HST	High Wind Warning	HFO	Hawaii	23 hr
Feb 22, 9:01 AM HST	Flood Watch	HFO	Hawaii, Honolulu, Kauai, Kalawao	30 hr

Nearby

Flash Flood Warnings in Hawaii, 2026 Every 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.