Alert archive / Hawaii / High Surf Warnings in 2018
High Surf Warning 13, NWS Honolulu, HI
NWS Honolulu, HI issued this high surf warning at Sep 10, 2018, 3:14 PM HST for Honolulu County, Kalawao County, Hawaii. It was in force for 60 hr. 7 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 10, 2018, 3:14 PM HST (01:14 UTC)
- Expired
- Sep 13, 2018, 3:35 AM HST
- In force
- 60 hr
- Issued by
- NWS Honolulu, HI
Counties Honolulu County, HI, Kalawao County, HI
The radar
The Molokai radar (PHMO), 36 km from the middle of the area, began a volume at 01:15 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 3:47 PM HST | NON-TSTM WND DMG | 4 N Honolulu, HI | TREE FALLEN OVER ONE LANE OF LIKELIKE HIGHWAY NEAR TUNNEL KANEOHE BOUND. |
| Sep 12, 11:08 AM HST | NON-TSTM WND DMG | 3 Ne Honolulu, HI | LARGE TREE BLOWN DOWN AT PALI LOOKOUT. |
| Sep 12, 11:25 AM HST | NON-TSTM WND DMG | 4 Se Honolulu, HI | TREE BLOWN DOWN ON DIAMOND HEAD ROAD AND MAKALEI PLACE. |
| Sep 12, 11:49 AM HST | NON-TSTM WND DMG | 4 N Honolulu, HI | TREE FALLEN DUE TO STRONG WINDS ON LIKELIKE HIGHWAY NEAR TUNNEL OVER RIGHT LANE KANEOHE BOUND. |
| Sep 12, 1:57 PM HST | NON-TSTM WND DMG | Pupukea, HI | FALLEN IRON WOOD TREE DUE TO STRONG WINDS BLOCKING KAMEHAMEHA HIGHWAY NEAR SUNSET ELEMENARY SCHOOL. |
| Sep 12, 2:08 PM HST | NON-TSTM WND DMG | Mililani Town, HI | STRONG WINDS CAUSED A HANGING LIMB FROM A TREE ON LANIKUHANA DRIVE BETWEEN KAMEHAMEHA HIGHWAY AND ANANIA DRIVE. |
| Sep 12, 10:40 PM HST | FLASH FLOOD | 1 Nw Honolulu, HI | WATER FROM THE KAHILI STREAM IS OVERTOPPING DILLINGHAM BLVD BRIDGE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lihue, (PHLI), launched 00:00Z, 1.2 hours before the alert went out and 209 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
731 WHHW40 PHFO 110114 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 314 PM HST Mon Sep 10 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND AND MAUI COUNTY... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF OAHU... .Swell from Tropical Storm Olivia will gradually rise through Tuesday, then rapidly rise Tuesday night as Olivia nears the Hawaiian Islands. The High Surf Advisory for east facing shores of Oahu may need to be upgraded to a warning later. HIZ012-017-020-024-025-111415- /O.UPG.PHFO.SU.Y.0041.000000T0000Z-180913T0400Z/ /O.NEW.PHFO.SU.W.0013.180911T0114Z-180913T0400Z/ Molokai Windward-Maui Windward West-Windward Haleakala- South Big Island-Big Island North and East- 314 PM HST Mon Sep 10 2018 ...HIGH SURF WARNING IN EFFECT UNTIL 6 PM HST WEDNESDAY... The National Weather Service in Honolulu has issued a High Surf Warning, which is in effect until 6 PM HST Wednesday. The High Surf Advisory is no longer in effect. * SURF...5 to 8 feet tonight along east facing shores, building to 10 to 14 feet Tuesday, then rising to 12 to 20 ft Tuesday night. * TIMING...Building through Tuesday, peaking Tuesday night into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ005-008-009-111415- /O.NEW.PHFO.SU.Y.0042.180911T0114Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana- 314 PM HST Mon Sep 10 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST WEDNESDAY... The National Weather Service in Honolulu has issued a High Surf Advisory, which is in effect until 6 PM HST Wednesday. * SURF...5 to 8 feet tonight along east facing shores, building to 8 to 11 feet Tuesday. * TIMING...Building through Tuesday, peaking Tuesday night into Wednesday. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Listen to NOAA Weather Radio or your local media for the latest updates on this situation. && $$
9 follow-up statements
285 WHHW40 PHFO 111329 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 329 AM HST Tue Sep 11 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND AND MAUI COUNTY... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF OAHU... .Swell from Tropical Storm Olivia will gradually rise through the day, then rapidly rise tonight as Olivia nears the Hawaiian Islands. The High Surf Advisory for east facing shores of Oahu may need to be upgraded to a warning later. HIZ012-017-020-024-025-120230- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Molokai Windward-Maui Windward West-Windward Haleakala- South Big Island-Big Island North and East- 329 AM HST Tue Sep 11 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...building to 10 to 14 feet today, then rising to 12 to 20 ft tonight. * TIMING..through today, and peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ005-008-009-120230- /O.CON.PHFO.SU.Y.0042.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana- 329 AM HST Tue Sep 11 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...building to 8 to 11 feet today, then rising to 10 to 14 feet tonight into Wednesday. * TIMING...through today, and peaking tonight into Wednesday. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Listen to NOAA Weather Radio or your local media for the latest updates on this situation. && $$
036 WHHW40 PHFO 111721 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 721 AM HST Tue Sep 11 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND AND MAUI COUNTY... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF OAHU... .Swell from Tropical Storm Olivia will gradually rise through the day, then rapidly rise tonight as Olivia nears the Hawaiian Islands. The High Surf Advisory for east facing shores of Oahu may need to be upgraded to a warning later. HIZ012-017-020-024-025-120630- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Molokai Windward-Maui Windward West-Windward Haleakala- South Big Island-Big Island North and East- 721 AM HST Tue Sep 11 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...Building to 10 to 14 feet along east facing shores today, then rising to 12 to 20 ft tonight. * TIMING..Through today, and peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ005-008-009-120630- /O.CON.PHFO.SU.Y.0042.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana- 721 AM HST Tue Sep 11 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...Building to 8 to 11 feet along east facing shores today, then rising to 10 to 14 feet tonight into Wednesday. * TIMING...Through today, and peaking tonight into Wednesday. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Listen to NOAA Weather Radio or your local media for the latest updates on this situation. && $$
625 WHHW40 PHFO 112316 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 116 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND MAUI MOLOKAI AND OAHU... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI AND LANAI... .Swells from Tropical Storm Olivia will gradually rise through this evening, then rapidly rise tonight and peak late tonight through Wednesday morning as Olivia nears the Hawaiian Islands. HIZ005-008-009-121230- /O.UPG.PHFO.SU.Y.0042.000000T0000Z-180913T0400Z/ /O.EXA.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana- 116 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING IN EFFECT UNTIL 6 PM HST WEDNESDAY... The National Weather Service in Honolulu has issued a High Surf Warning, which is in effect until 6 PM HST Wednesday. The High Surf Advisory is no longer in effect. * SURF...Building to 10 to 14 feet along east facing shores this afternoon, then rising to 12 to 20 ft tonight into Wednesday. * TIMING...Peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ013-019-121230- /O.EXA.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Molokai Leeward-Maui Central Valley- 116 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING IN EFFECT UNTIL 6 PM HST WEDNESDAY... The National Weather Service in Honolulu has issued a High Surf Warning, which is in effect until 6 PM HST Wednesday. * SURF...Building to 10 to 14 feet along east facing shores this afternoon, then rising to 12 to 20 ft tonight into Wednesday. * TIMING...Peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ012-017-020-024-025-121230- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Molokai Windward-Maui Windward West-Windward Haleakala- South Big Island-Big Island North and East- 116 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...Building to 10 to 14 feet along east facing shores this afternoon, then rising to 12 to 20 ft tonight into Wednesday. * TIMING...Through today, and peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ002-014-121230- /O.NEW.PHFO.SU.Y.0043.180911T2316Z-180913T0400Z/ Kauai Windward-Lanai Makai- 116 PM HST Tue Sep 11 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST WEDNESDAY... The National Weather Service in Honolulu has issued a High Surf Advisory, which is in effect until 6 PM HST Wednesday. * SURF...Building to 8 to 11 feet along east facing shores this afternoon, then rising to 10 to 14 feet tonight into Wednesday. * TIMING...Building today, peaking tonight and Wednesday. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
136 WHHW40 PHFO 120221 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 421 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND MAUI MOLOKAI AND OAHU... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI AND LANAI... .Swells from Tropical Storm Olivia will gradually rise through this evening, then rapidly rise tonight and peak late tonight through Wednesday morning as Olivia nears the Hawaiian Islands. HIZ005-008-009-012-013-017-019-020-024-025-121530- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana-Molokai Windward- Molokai Leeward-Maui Windward West-Maui Central Valley- Windward Haleakala-South Big Island-Big Island North and East- 421 PM HST Tue Sep 11 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...Building to 10 to 14 feet along east facing shores this afternoon, then rising to 12 to 20 ft tonight into Wednesday. * TIMING...Peaking tonight into Wednesday. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ002-014-121530- /O.CON.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ Kauai Windward-Lanai Makai- 421 PM HST Tue Sep 11 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...Building to 8 to 11 feet along east facing shores this afternoon, then rising to 10 to 14 feet tonight into Wednesday. * TIMING...Building today, peaking tonight and Wednesday. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
720 WHHW40 PHFO 121330 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 330 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF BIG ISLAND MAUI MOLOKAI AND OAHU... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF KAUAI AND LANAI... .Swells from Tropical Storm Olivia will peak today as the system moves through the island chain. HIZ005-008-009-012-013-017-019-020-024-025-130230- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana-Molokai Windward- Molokai Leeward-Maui Windward West-Maui Central Valley- Windward Haleakala-South Big Island-Big Island North and East- 330 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 20 ft along east facing shores of Big Island Maui Molokai and Oahu. * TIMING...through this afternoon. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channels dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$ HIZ002-014-130230- /O.CON.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ Kauai Windward-Lanai Makai- 330 AM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 14 feet along east facing shores of Kauai and Lanai. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
056 WHHW40 PHFO 121747 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 747 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF MAUI MOLOKAI AND OAHU... . ..HIGH SURF ADVISORY FOR EAST FACING SHORES OF BIG ISLAND KAUAI AND LANAI... .Swells from Tropical Storm Olivia will peak today as the system moves through the island chain. HIZ024-025-130400- /O.CAN.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ /O.EXA.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ South Big Island-Big Island North and East- 747 AM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING... ...HIGH SURF WARNING IS CANCELLED... The National Weather Service in Honolulu has issued a High Surf Advisory, which is in effect until 6 PM HST this evening. The High Surf Warning has been cancelled. * SURF...6 to 10 feet along east facing shores of Big Island. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Beachgoers, swimmers, and surfers should heed all advice given by ocean safety officials and exercise caution. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas. && $$ HIZ005-008-009-012-013-017-019-020-130400- /O.CON.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana-Molokai Windward- Molokai Leeward-Maui Windward West-Maui Central Valley- Windward Haleakala- 747 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 20 ft along east facing shores of Big Island Maui Molokai and Oahu. * TIMING...through this afternoon. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channels dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Boaters should be aware of an increased number of surfers and body boarders utilizing the harbor channel to access surfing areas. && $$ HIZ002-014-130400- /O.CON.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ Kauai Windward-Lanai Makai- 747 AM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 14 feet along east facing shores of Kauai and Lanai. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
340 WHHW40 PHFO 121751 CCA CFWHFO Coastal Hazard Message...CORRECTED National Weather Service Honolulu HI 751 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF MAUI MOLOKAI AND OAHU... . ..HIGH SURF ADVISORY FOR EAST FACING SHORES OF THE BIG ISLAND AND KAUAI AND NORTH FACING SHORES OF LANAI... .Swells from Tropical Storm Olivia will peak today as the system moves through the island chain. HIZ024-025-130400- /O.CAN.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ /O.EXA.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ South Big Island-Big Island North and East- 751 AM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING... ...HIGH SURF WARNING IS CANCELLED... The National Weather Service in Honolulu has issued a High Surf Advisory, which is in effect until 6 PM HST this evening. The High Surf Warning has been cancelled. * SURF...6 to 10 feet along east facing shores of Big Island. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Beachgoers, swimmers, and surfers should heed all advice given by ocean safety officials and exercise caution. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas. && $$ HIZ005-008-009-012-013-017-019-020-130400- /O.COR.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ Oahu South Shore-Oahu Koolau-Olomana-Molokai Windward- Molokai Leeward-Maui Windward West-Maui Central Valley- Windward Haleakala- 751 AM HST Wed Sep 12 2018 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 20 ft along east facing shores of Maui Molokai and Oahu. * TIMING...through this afternoon. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channels dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Boaters should be aware of an increased number of surfers and body boarders utilizing the harbor channel to access surfing areas. && $$ HIZ002-014-130400- /O.COR.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ Kauai Windward-Lanai Makai- 751 AM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...10 to 14 feet along east facing shores of Kauai and north facing shores of Lanai. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
041 WHHW40 PHFO 130244 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 444 PM HST Wed Sep 12 2018 ...HIGH SURF WARNING FOR EAST FACING SHORES OF OAHU... ..HIGH SURF ADVISORY FOR EAST FACING SHORES OF THE BIG ISLAND MAUI MOLOKAI AND KAUAI. .Swells from Tropical Storm Olivia will drop tonight as the system moves away from the island chain. HIZ012-013-017-019-020-131545- /O.CAN.PHFO.SU.W.0013.000000T0000Z-180913T0400Z/ /O.EXB.PHFO.SU.Y.0043.000000T0000Z-180913T1600Z/ Molokai Windward-Molokai Leeward-Maui Windward West- Maui Central Valley-Windward Haleakala- 444 PM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM HST THURSDAY... ...HIGH SURF WARNING IS CANCELLED... The National Weather Service in Honolulu has issued a High Surf Advisory, which is in effect until 6 AM HST Thursday. The High Surf Warning has been cancelled. * SURF...6 to 10 feet along east facing shores. * TIMING...Dropping through tonight. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Beachgoers, swimmers, and surfers should heed all advice given by ocean safety officials and exercise caution. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas. && $$ HIZ014-024-130345- /O.CAN.PHFO.SU.Y.0043.000000T0000Z-180913T0400Z/ Lanai Makai-South Big Island- 444 PM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY IS CANCELLED... The National Weather Service in Honolulu has cancelled the High Surf Advisory. Surf has dropped below the advisory criteria. $$ HIZ005-008-009-131545- /O.EXT.PHFO.SU.W.0013.000000T0000Z-180913T1600Z/ Oahu South Shore-Oahu Koolau-Olomana- 444 PM HST Wed Sep 12 2018 ...HIGH SURF WARNING NOW IN EFFECT UNTIL 6 AM HST THURSDAY... * SURF...10 to 16 ft along east facing shores of Oahu. * TIMING...Dropping through tonight. * IMPACTS...High...Expect ocean water occasionally sweeping across portions of beaches, very strong breaking waves, and strong longshore and rip currents. Breaking waves may occasionally impact harbors making navigating the harbor channels dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. Boaters should be aware of an increased number of surfers and body boarders utilizing the harbor channel to access surfing areas. && $$ HIZ025-131545- /O.EXT.PHFO.SU.Y.0043.000000T0000Z-180913T1600Z/ Big Island North and East- 444 PM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 AM HST THURSDAY... * SURF...6 to 10 feet along east facing shores of Big Island. * TIMING...through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Beachgoers, swimmers, and surfers should heed all advice given by ocean safety officials and exercise caution. Boaters should expect recreational surfers and body boarders utilizing harbor channels to access surfing areas. && $$ HIZ002-131545- /O.EXT.PHFO.SU.Y.0043.000000T0000Z-180913T1600Z/ Kauai Windward- 444 PM HST Wed Sep 12 2018 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 AM HST THURSDAY... * SURF...10 to 14 feet along east facing shores of Kauai. * TIMING...Peaking this evening and dropping tonight. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
961 WHHW40 PHFO 131335 CFWHFO Coastal Hazard Message National Weather Service Honolulu HI 335 AM HST Thu Sep 13 2018 ...HIGH SURF ADVISORY REMAINS IN EFFECT FOR KAUAI... .Swell from Olivia will drop as the system moves away from the island chain. Enough energy remains to keep an advisory in effect for Kauai through this afternoon. HIZ005-008-009-131445- /O.CAN.PHFO.SU.W.0013.000000T0000Z-180913T1600Z/ Oahu South Shore-Oahu Koolau-Olomana- 335 AM HST Thu Sep 13 2018 ...HIGH SURF WARNING IS CANCELLED... The National Weather Service in Honolulu has cancelled the High Surf Warning. Surf heights have decreased below warning and advisory thresholds. The High Surf Warning is therefore cancelled. $$ HIZ012-013-017-019-020-025-131445- /O.CAN.PHFO.SU.Y.0043.000000T0000Z-180913T1600Z/ Molokai Windward-Molokai Leeward-Maui Windward West- Maui Central Valley-Windward Haleakala-Big Island North and East- 335 AM HST Thu Sep 13 2018 ...HIGH SURF ADVISORY IS CANCELLED... The National Weather Service in Honolulu has cancelled the High Surf Advisory. Surf heights have decreased below advisory threshold. The High Surf Advisory is therefore cancelled. $$ HIZ002-140245- /O.EXT.PHFO.SU.Y.0043.000000T0000Z-180914T0400Z/ Kauai Windward- 335 AM HST Thu Sep 13 2018 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...8 to 12 feet along east facing shores of Kauai. * TIMING...Through this afternoon. * IMPACTS...Moderate...Expect strong breaking waves, shore break, and strong longshore and rip currents making swimming difficult and dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous. Anyone entering the water could face significant injury or death. && $$
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 3:07 PM HST | Flash Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 3 days |
| Sep 10, 3:14 PM HST | High Surf Advisory | HFO | Honolulu | 22 hr |
| Sep 11, 1:16 PM HST | High Surf Advisory | HFO | Kalawao | 47 hr |
Nearby
High Surf Warnings in Hawaii, 2018Every high surf warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.