Alert archive / Hawaii / Flash Flood Watches in 2011

Flash Flood Watch 8, NWS Honolulu, HI

April 4, 20114 counties in Hawaii

NWS Honolulu, HI issued this flash flood watch at Apr 4, 2011, 3:39 PM HST for 4 counties in Hawaii. It took effect at Apr 6, 2011, 12:00 AM HST. It was in force for 64 hr.

The area

The counties it named.

The facts

Issued: Apr 4, 2011, 3:39 PM HST (01:39 UTC)
In effect from: Apr 6, 2011, 12:00 AM HST
Expired: Apr 8, 2011, 3:49 PM HST
In force: 64 hr
Issued by: NWS Honolulu, HI
Flood severity: None

Counties Hawaii County, HI, Honolulu County, HI, Kalawao County, HI, Kauai County, HI

The radar

The Molokai radar (PHMO), 38 km from the middle of the area, began a volume at 01:40 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 watch 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 watch went out at Apr 4, 9:30 AM HST, 6 hours 9 minutes earlier.

Area forecast discussion, Apr 4, 9:30 AM HST, 6 hours 9 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
Apr 4, 3:22 PM HST	Small Craft Advisory	HFO		5 days
Apr 5, 6:46 AM HST	High Surf Advisory	HFO	Honolulu, Kauai	33 hr
Apr 5, 7:21 AM HST	Winter Storm Watch	HFO	Hawaii	8 hr

Nearby

Flash Flood Watches in Hawaii, 2011 Every flash flood watch in 2011

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.