Heavy Rainfall and Wind Associated with Lowell
Sep 8–9, 2026 · WPC Storm Summaries · Ended
- Hawaii
Summaries
3 summaries · 1 correction
First Sep 8, 02:21 PM UTC · latest Sep 9, 02:19 PM UTC
Source
NOAA Weather Prediction Center
Station values in WPC's text are preliminary
WPC outlooks as they stood at each summary
WPC's Excessive Rainfall Outlook and WSSI do not cover Hawaii, so there is no outlook to show for this event.
Storm summaries
Summary #3 · final
Sep 9, 02:19 PM UTC
Lingering moisture will bring some isolated scattered showers for western Hawaiian islands, as the storm continues to move offshore away from the islands
Full text
ACUS44 KWBC 091419 SCCNS4 Storm Summary Number 3 for Heavy Rainfall and Wind Associated with Lowell NWS Weather Prediction Center College Park MD 500 AM HST Wed Sep 09 2026 ...Lingering moisture will bring some isolated scattered showers for western Hawaiian islands, as the storm continues to move offshore away from the islands... A Flood Watch is in effect for The Big Island. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 400 AM HST...Heavy rain and south-southwest gusty winds associated with Lowell have diminished across the Hawaiian Islands as the system continues to track away from the region, but seas continue to remain elevated through tonight. For the latest information regarding the location and track of Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...HAWAII... PUU LUA 92 NAWILIWILI 87 WAIMEA 85 BARKING SANDS 84 LIHUE AIRPORT 84 KULA 80 WAIMEA HEIGHTS 79 PUU OPAE 78 MAKAHA RIDGE 77 MANA 5 E 72 LIHUE 1 S 66 MOLOAA 1 S 60 KOKEE STATE PARK 4 W 59 WAIANAE 59 KEALIA 54 MAKAHA VALLEY 54 MAKUA VALLEY 1 NW 54 HONOLULI AIRPORT 51 KALAELOA AIRPORT 48 KAHULUI AIRPORT 46 ...Selected preliminary Storm Total Rainfall in inches where the event has ended... ...HAWAII... PH WAINIHA 19.89 KILOHANA 19.62 MOHIHI CROSSING 17.71 LOWER LIMAHULI 16.42 N WAILUA DITCH 16.08 WAIALAE 15.47 MT. WAIALEALE 15.25 HANALEI 0.8 SE 11.32 KAHANA 9.65 TUNNEL RG 9.05 MOANALUA RG 8.94 WEST WAILUAIKI STREAM 8.54 KAMANANUI STREAM 8.52 PRINCEVILLE AIRPORT 8.29 POHAKU PALAHA 8.08 WAILUA 7.19 PUU OPAE 6.96 POAMOHO 6.23 KAMALOMALOO 6.01 HILO 5.76 HILINA PALI 5.02 Lowell will continue to track northward over the open waters, which may bring some high seas through tonight. Flash flooding will remain possible for the Big Island through the afternoon, as a weak band of residual moisture brings chances for scattered showers. For the latest information on Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. This will be the last Storm Summary issued by the Weather Prediction Center for this event. Please refer to your local National Weather service office for additional information. Oudit $$
Summary #2
Sep 9, 02:01 AM UTC · corrects an earlier issuance
Outer bands of Lowell continue to bring heavy rain and strong winds for the western Hawaiian islands, as the storm begins moving away from the islands
Full text
ACUS44 KWBC 090201 SCCNS4 Storm Summary Number 2 for Heavy Rainfall and Wind Associated with Lowell NWS Weather Prediction Center College Park MD 500 PM HST Tue Sep 08 2026 ...Outer bands of Lowell continue to bring heavy rain and strong winds for the western Hawaiian islands, as the storm begins moving away from the islands... A Flood Watch is in effect for The Big Island. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 400 PM HST...Heavy rain and gusty winds associated with Lowell have ended across the Hawaiian Islands as the system continues to track away from the region. For the latest information regarding the location and track of Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...HAWAII... PUU LUA 92 NAWILIWILI 87 WAIMEA 85 BARKING SANDS 84 LIHUE AIRPORT 84 KULA 80 WAIMEA HEIGHTS 79 PUU OPAE 78 MAKAHA RIDGE 77 MANA 5 E 72 LIHUE 1 S 66 MOLOAA 1 S 60 KOKEE STATE PARK 4 W 59 WAIANAE 59 KEALIA 54 MAKAHA VALLEY 54 MAKUA VALLEY 1 NW 54 HONOLULI AIRPORT 51 KALAELOA AIRPORT 48 KAHULUI AIRPORT 46 ...Selected preliminary Storm Total Rainfall in inches where the event has ended... ...HAWAII... KILOHANA 21.11 MT. WAIALEALE 18.63 MOHIHI CROSSING 17.70 N WAILUA DITCH 17.16 WAIALAE 14.67 WEST WAILUAIKI STREAM 11.83 HANALEI 0.8 SE 10.24 POAMOHO 9.91 KAHANA 9.65 TUNNEL RG 8.94 MOANALUA RG 8.77 KAMANANUI STREAM 8.41 POHAKU PALAHA 7.96 WAILUA 7.19 PUU OPAE 6.65 KAMALOMALOO 6.45 HILO 5.50 HILINA PALI 5.02 PRINCEVILLE AIRPORT 4.76 A weak band of moisture just east of the Big Island will move west on Wednesday and may produce flooding on the Big Island during the afternoon. For the latest information on Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. The next Storm Summary will be issued by the Weather Prediction Center at 500 AM HST. Please refer to your local National Weather Service office for additional information on this event. Eovino $$ $$
Superseded version, Sep 9, 01:59 AM UTC
ACUS44 KWBC 090159 SCCNS4 Storm Summary Number 2 for Heavy Rainfall and Wind Associated with Lowell NWS Weather Prediction Center College Park MD 1100 PM EDT Tue Sep 08 2026 ...Outer bands of Lowell continue to bring heavy rain and strong winds for the western Hawaiian islands, as the storm begins moving away from the islands... A Flood Watch is in effect for The Big Island. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 1000 PM EDT...Heavy rain and gusty winds associated with Lowell have ended across the Hawaiian Islands as the system continues to track away from the region. For the latest information regarding the location and track of Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...HAWAII... PUU LUA 92 NAWILIWILI 87 WAIMEA 85 BARKING SANDS 84 LIHUE AIRPORT 84 KULA 80 WAIMEA HEIGHTS 79 PUU OPAE 78 MAKAHA RIDGE 77 MANA 5 E 72 LIHUE 1 S 66 MOLOAA 1 S 60 KOKEE STATE PARK 4 W 59 WAIANAE 59 KEALIA 54 MAKAHA VALLEY 54 MAKUA VALLEY 1 NW 54 HONOLULI AIRPORT 51 KALAELOA AIRPORT 48 KAHULUI AIRPORT 46 ...Selected preliminary Storm Total Rainfall in inches where the event has ended... ...HAWAII... KILOHANA 21.11 MT. WAIALEALE 18.63 MOHIHI CROSSING 17.70 N WAILUA DITCH 17.16 WAIALAE 14.67 WEST WAILUAIKI STREAM 11.83 HANALEI 0.8 SE 10.24 POAMOHO 9.91 KAHANA 9.65 TUNNEL RG 8.94 MOANALUA RG 8.77 KAMANANUI STREAM 8.41 POHAKU PALAHA 7.96 WAILUA 7.19 PUU OPAE 6.65 KAMALOMALOO 6.45 HILO 5.50 HILINA PALI 5.02 PRINCEVILLE AIRPORT 4.76 A weak band of moisture just east of the Big Island will move west on Wednesday and may produce flooding on the Big Island during the afternoon. For the latest information on Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. The next Storm Summary will be issued by the Weather Prediction Center at 1100 AM EDT. Please refer to your local National Weather Service office for additional information on this event. Eovino $$
Summary #1
Sep 8, 02:21 PM UTC
Outer bands of Lowell continue to bring heavy rain and strong winds for the western Hawaiian islands, as the storm begins moving away from the islands
Full text
ACUS44 KWBC 081421 SCCNS4 Storm Summary Number 1 for Heavy Rainfall and Wind Associated with Lowell NWS Weather Prediction Center College Park MD 500 AM HST Tue Sep 08 2026 ...Outer bands of Lowell continue to bring heavy rain and strong winds for the western Hawaiian islands, as the storm begins moving away from the islands... A Hurricane Warning is in effect for the islands of Kauai and Niihau. Tropical Storm Warnings are in effect for Kauai and Oahu. A Flash Flood Warning is in effect for the island of Kauai. A Flood Watch is in effect for much of Hawaii. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 400 AM HST...Heavy rain and gusty winds associated with Lowell have been occurring over much of the Hawaii islands, especially the western islands of Kauai, Oahu, and Niihau. Below are the selected rainfall and wind observations associated with Lowell. For information regarding the location and track of Lowell, please refer to www.nhc.noaa.gov. ...Selected preliminary Storm Total Rainfall in inches from 200 PM HST Mon Sep 07 through 400 AM HST Tue Sep 08... ...HAWAII... HANALEI 7 SW 17.76 LIMAHULI 16.30 KAPAA 10 W 15.25 LIHUE 10 NW 14.00 WAIPA 13.18 HANA 11 NW 7.93 HALEIWA 7 ENE 6.60 PUNALUU 4 SSW 5.97 ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...HAWAII... MANA 5 E 72 LIHUE 1 S 66 MOLOAA 1 S 60 KOKEE STATE PARK 4 W 59 WAIANAE 59 MAKAHA VALLEY 54 MAKUA VALLEY 1 NW 54 For the latest information on Lowell, please refer to the National Hurricane Center at www.nhc.noaa.gov. The next Storm Summary will be issued by the Weather Prediction Center at 500 PM HST. Please refer to your local National Weather Service office for additional information on this event. Blanco-Alcala $$
Forecast offices in the affected states
By the states WPC's summaries list. Each office page has its active alerts and latest Area Forecast Discussion.
Hawaii
Text: NOAA/NWS Weather Prediction Center Storm Summaries, shown verbatim. Grouping the summaries into one event, the outlook copies and the links are Stormlio's; WPC issues no event id. Station values are preliminary; the official record is NCEI Storm Data.