Alert archive / Hawaii / Special Marine Warnings in 2021

Special Marine Warning 47, NWS Honolulu, HI

March 10, 2021

NWS Honolulu, HI issued this special marine warning at Mar 10, 2021, 4:37 PM HST. It was in force for 113 min. 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 10, 2021, 4:37 PM HST (02:37 UTC)
Expired: Mar 10, 2021, 6:30 PM HST
In force: 113 min
Issued by: NWS Honolulu, HI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 34.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Mar 10, 3:48 PM HST, 49 minutes earlier.

Area forecast discussion, Mar 10, 3:48 PM HST, 49 minutes before

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In the hours before

Local storm report, Mar 10, 10:48 AM HST, 5 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
1048 AM HST WED MAR 10 2021

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

0530 PM     DEBRIS FLOW      3 WNW KILAUEA           22.22N 159.45W
03/09/2021                   KAUAI              HI   EMERGENCY MNGR

            MUDSLIDE ON ANINI ROAD BLOCKING ONE LANE OF TRAFFIC.

0800 PM     FLASH FLOOD      2 SSW LIHUE             21.95N 159.36W
03/09/2021                   KAUAI              HI   EMERGENCY MNGR

            FLOODING REPORTED ON NIUMALU ROAD IN THE VICINITY OF
            HULEMALU ROAD.

1000 PM     FLASH FLOOD      1 WNW KILAUEA           22.22N 159.43W
03/09/2021                   KAUAI              HI   EMERGENCY MNGR

            EXTENSIVE FLOODING ALONG KALIHIWAI ROAD.

0620 AM     FLASH FLOOD      KAPAA                   22.10N 159.35W
03/10/2021                   KAUAI              HI   EMERGENCY MNGR

            KEAPANA BRIDGE IS IMPASSIBLE.

&&

AHUE

Local storm report, Mar 10, 11:13 AM HST, 5 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
1113 AM HST WED MAR 10 2021

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

0135 PM     FLASH FLOOD      PUPUKEA                 21.67N 158.05W
03/09/2021                   HONOLULU           HI   PUBLIC

            RIVER/CREEK OVERFLOWING; CROPLAND/YARD/BASEMENT
            FLOODING.

0204 PM     FLASH FLOOD      1 SSE LAIE              21.63N 157.92W
03/09/2021                   HONOLULU           HI   PUBLIC

            STREET/ROAD FLOODING; STREET/ROAD CLOSED; VEHICLES
            STRANDED.

0254 PM     FLASH FLOOD      PUNALUU                 21.60N 157.90W
03/09/2021                   HONOLULU           HI   PUBLIC

            STREET/ROAD FLOODING; STREET/ROAD CLOSED; VEHICLES
            STRANDED.

0123 AM     FLASH FLOOD      5 SW HAWAIIAN PARADISE  19.54N 155.03W
03/10/2021                   HAWAII             HI   PUBLIC

            RIVER/CREEK OVERFLOWING; CROPLAND/YARD/BASEMENT
            FLOODING.

&&

Local storm report, Mar 10, 3:25 PM HST, 1 hour 12 minutes before

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Local storm report, Mar 10, 3:37 PM HST, 1 hour before

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Local storm report, Mar 10, 3:50 PM HST, 47 minutes before

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Special weather statement, Mar 10, 4:36 PM HST, 1 minute 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
Mar 10, 2:36 PM HST	Flash Flood Warning	HFO	Honolulu	97 min
Mar 10, 3:00 PM HST	Special Marine Warning	HFO		2 hr
Mar 10, 3:11 PM HST	Small Craft Advisory	HFO		13 hr
Mar 10, 3:45 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Mar 10, 4:13 PM HST	Areal Flood Advisory	HFO	Honolulu	2 hr
Mar 10, 4:30 PM HST	Areal Flood Advisory	HFO	Hawaii	2 hr
Mar 10, 4:36 PM HST	Special Weather Statement	HFO	Kauai	24 min
Mar 10, 4:58 PM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Mar 10, 6:22 PM HST	Flash Flood Warning	HFO	Honolulu	5 hr
Mar 10, 6:26 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Mar 10, 6:34 PM HST	Special Marine Warning	HFO		25 min
Mar 10, 8:05 PM HST	Special Marine Warning	HFO		46 min
Mar 10, 8:12 PM HST	Special Marine Warning	HFO		2 hr
Mar 10, 9:18 PM HST	Special Marine Warning	HFO		76 min
Mar 10, 9:27 PM HST	Areal Flood Advisory	HFO	Honolulu	86 min
Mar 10, 11:04 PM HST	Special Marine Warning	HFO		116 min
Mar 11, 2:23 AM HST	Areal Flood Advisory	HFO	Honolulu	7 hr
Mar 11, 2:39 AM HST	Special Marine Warning	HFO		2 hr
Mar 11, 3:21 AM HST	Areal Flood Advisory	HFO	Kauai	9 hr
Mar 11, 3:47 AM HST	Special Weather Statement	HFO	Kauai	43 min
Mar 11, 1:39 PM HST	Areal Flood Advisory	HFO	Honolulu	43 min

Nearby

Special Marine Warnings in Hawaii, 2021 Every special marine warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.