Alert archive / Hawaii / High Surf Warnings in 2017
High Surf Warning 13, NWS Honolulu, HI
NWS Honolulu, HI issued this high surf warning at Oct 26, 2017, 4:05 PM HST for Honolulu County, Kauai County, Kalawao County, Hawaii. It took effect at Oct 27, 2017, 12:00 AM HST. It was in force for 40 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
- Oct 26, 2017, 4:05 PM HST (02:05 UTC)
- In effect from
- Oct 27, 2017, 12:00 AM HST
- Expired
- Oct 28, 2017, 3:50 PM HST
- In force
- 40 hr
- Issued by
- NWS Honolulu, HI
Counties Honolulu County, HI, Kalawao County, HI, Kauai County, HI
The radar
The Molokai radar (PHMO), 116 km from the middle of the area, began a volume at 02:06 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.
The nearest sounding before it
Lihue, (PHLI), launched 00:00Z, 2.1 hours before the alert went out and 127 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
- 1368 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
026 WHHW40 PHFO 270205 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 405 PM HST THU OCT 26 2017 ...HIGH SURF WARNING STARTING AT MIDNIGHT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY STARTING AT MIDNIGHT FOR WEST FACING SHORES OF MAUI... ...HIGH SURF ADVISORY STARTING FRIDAY MORNING FOR NORTH FACING SHORES OF THE BIG ISLAND... .A LARGE LONG PERIOD NORTHWEST SWELL WILL BUILD ACROSS HAWAIIAN WATERS TONIGHT AND FRIDAY. SURF ALONG NORTH AND WEST FACING SHORES OF MOST ISLANDS WILL RISE TO ADVISORY LEVELS AFTER MIDNIGHT...THEN INCREASE TO WARNING LEVELS EARLY FRIDAY MORNING. THE SWELL WILL PEAK ON FRIDAY THEN SLOWLY DECLINE ON SATURDAY. HIZ001>003-007-008-012-013-017-019-020-271515- /O.CAN.PHFO.SU.Y.0042.000000T0000Z-171027T0400Z/ /O.NEW.PHFO.SU.W.0013.171027T1000Z-171029T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-OAHU NORTH SHORE-OAHU KOOLAU- MOLOKAI WINDWARD-MOLOKAI LEEWARD-MAUI WINDWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 405 PM HST THU OCT 26 2017 ...HIGH SURF WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY... ...HIGH SURF ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY. THE HIGH SURF ADVISORY HAS BEEN CANCELLED. * SURF...ALONG NORTH FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND MAUI...RISING TO 12 TO 20 FEET AFTER MIDNIGHT AND BUILDING TO 25 TO 32 FEET ON FRIDAY. ALONG WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND MAUI...RISING TO 8 TO 15 FEET AFTER MIDNIGHT AND BUILDING TO 15 TO 20 FEET ON FRIDAY. * TIMING...RISING TONIGHT...PEAKING ABOVE WARNING LEVELS ON FRIDAY...THEN GRADUALLY DECREASING SATURDAY. * 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. && $$ HIZ006-009-271515- /O.NEW.PHFO.SU.W.0013.171027T1000Z-171029T0400Z/ WAIANAE COAST-OLOMANA- 405 PM HST THU OCT 26 2017 ...HIGH SURF WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY. * SURF...ALONG NORTH FACING SHORES OF OAHU...RISING TO 12 TO 20 FEET AFTER MIDNIGHT AND BUILDING TO 25 TO 32 FEET ON FRIDAY. ALONG WEST FACING SHORES OF OAHU...RISING TO 8 TO 15 FEET AFTER MIDNIGHT AND BUILDING TO 15 TO 20 FEET ON FRIDAY. * TIMING...RISING TONIGHT...PEAKING ABOVE WARNING LEVELS ON FRIDAY...THEN GRADUALLY DECREASING SATURDAY. * IMPACTS...HIGH...EXPECT OCEAN WATER OCCASIONALLY SWEEPING ACROSS PORTIONS OF BEACHES...VERY STRONG BREAKING WAVES, AND STRONG LONGSHORE AND RIP CURRENTS. BREAKING WAVES MAY OCCASIONALLY IMPACT HARBORS MAKING NAVIGATING THE HARBOR CHANNEL DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK...AND DANGEROUS CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. ANYONE ENTERING THE WATER COULD FACE SIGNIFICANT INJURY OR DEATH. && $$ HIZ018-271515- /O.NEW.PHFO.SU.Y.0043.171027T1000Z-171029T0400Z/ MAUI LEEWARD WEST- 405 PM HST THU OCT 26 2017 ...HIGH SURF ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM HST SATURDAY. * SURF...ALONG WEST FACING SHORES OF MAUI...BUILDING TO 10 TO 15 FEET LATE TONIGHT AND FRIDAY. * TIMING...RISING TONIGHT...PEAKING AT ADVISORY LEVELS ON FRIDAY...THEN GRADUALLY DECREASING SATURDAY. * 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. && $$ HIZ025-271515- /O.NEW.PHFO.SU.Y.0043.171027T1600Z-171029T0400Z/ BIG ISLAND NORTH AND EAST- 405 PM HST THU OCT 26 2017 ...HIGH SURF ADVISORY IN EFFECT FROM 6 AM FRIDAY TO 6 PM HST SATURDAY... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT FROM 6 AM FRIDAY TO 6 PM HST SATURDAY. * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND...MAINLY IN THE PUNA DISTRICT...RISING TO 10 TO 15 FEET FRIDAY. * TIMING...BUILDING EARLY FRIDAY...PEAKING AT ADVISORY LEVELS LATE FRIDAY AND FRIDAY NIGHT...THEN GRADUALLY SUBSIDING ON SATURDAY. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BEACHGOERS...SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$ WROE
5 follow-up statements
687 WHHW40 PHFO 271333 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 333 AM HST FRI OCT 27 2017 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR WEST FACING SHORES OF MAUI... ...HIGH SURF ADVISORY STARTING FOR NORTH FACING SHORES OF THE BIG ISLAND... .A LONG PERIOD LARGE NORTHWEST SWELL WILL BUILD ACROSS THE HAWAIIAN WATERS TODAY. SURF ALONG NORTH AND WEST FACING SHORES OF MOST ISLANDS WILL RISE TO WARNING LEVELS THIS MORNING...AND CONTINUE THROUGH SATURDAY. THE SWELL WILL PEAK LATE THIS AFTERNOON AND THIS EVENING...THEN SLOWLY DECLINE THROUGH THE DAY ON SATURDAY. HIZ001>003-006>009-012-013-017-019-020-280400- /O.CON.PHFO.SU.W.0013.000000T0000Z-171029T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-OLOMANA-MOLOKAI WINDWARD- MOLOKAI LEEWARD-MAUI WINDWARD WEST-MAUI CENTRAL VALLEY- WINDWARD HALEAKALA- 333 AM HST FRI OCT 27 2017 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG NORTH AND WEST FACING SHORES OF NIIHAU KAUAI AND MOLOKAI AND NORTH FACING SHORES OF OAHU AND MAUI...RISING TO 15 TO 30 FEET THIS MORNING...THEN BUILDING TO 25 TO 35 FEET THIS AFTERNOON. ALONG WEST FACING SHORES OF OAHU...RISING TO 10 TO 15 FEET THIS MORNING...THEN TO 15 TO 22 FEET THIS AFTERNOON. * TIMING...RISING THIS MORNING...PEAKING LATE THIS AFTERNOON...THEN SLOWLY SUBSIDING THROUGH SATURDAY. * 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. && $$ HIZ025-280400- /O.EXT.PHFO.SU.Y.0043.171027T1333Z-171029T0400Z/ BIG ISLAND NORTH AND EAST- 333 AM HST FRI OCT 27 2017 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND... MAINLY IN THE PUNA DISTRICT...RISING TO 10 TO 15 FEET THIS MORNING. * TIMING...RISING THROUGH THE DAY TODAY...PEAKING LATE THIS AFTERNOON AND EVENING...THEN GRADUALLY SUBSIDING THROUGH SATURDAY. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BEACHGOERS...SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$ HIZ018-280400- /O.CON.PHFO.SU.Y.0043.000000T0000Z-171029T0400Z/ MAUI LEEWARD WEST- 333 AM HST FRI OCT 27 2017 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG WEST FACING SHORES OF MAUI...BUILDING TO 10 TO 15 FEET THIS MORNING. * TIMING...RISING THIS MORNING...PEAKING THIS AFTERNOON...THEN GRADUALLY SUBSIDING THROUGH SATURDAY. * 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. && $$
823 WHHW40 PHFO 271348 CCA CFWHFO COASTAL HAZARD MESSAGE...CORRECTED NATIONAL WEATHER SERVICE HONOLULU HI 348 AM HST FRI OCT 27 2017 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR WEST FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF THE BIG ISLAND... .A LONG PERIOD LARGE NORTHWEST SWELL WILL BUILD ACROSS THE HAWAIIAN WATERS TODAY. SURF ALONG NORTH AND WEST FACING SHORES OF MOST ISLANDS WILL RISE TO WARNING LEVELS THIS MORNING...AND CONTINUE THROUGH SATURDAY. THE SWELL WILL PEAK LATE THIS AFTERNOON AND THIS EVENING...THEN SLOWLY DECLINE THROUGH THE DAY ON SATURDAY. HIZ001>003-006>009-012-013-017-019-020-280400- /O.CON.PHFO.SU.W.0013.000000T0000Z-171029T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-OLOMANA-MOLOKAI WINDWARD- MOLOKAI LEEWARD-MAUI WINDWARD WEST-MAUI CENTRAL VALLEY- WINDWARD HALEAKALA- 348 AM HST FRI OCT 27 2017 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG NORTH AND WEST FACING SHORES OF NIIHAU KAUAI AND MOLOKAI AND NORTH FACING SHORES OF OAHU AND MAUI...RISING TO 15 TO 30 FEET THIS MORNING...THEN BUILDING TO 25 TO 35 FEET THIS AFTERNOON. ALONG WEST FACING SHORES OF OAHU...RISING TO 10 TO 15 FEET THIS MORNING...THEN TO 15 TO 22 FEET THIS AFTERNOON. * TIMING...RISING THIS MORNING...PEAKING LATE THIS AFTERNOON...THEN SLOWLY SUBSIDING THROUGH SATURDAY. * IMPACTS...HIGH...EXPECT OCEAN WATER OCCASIONALLY SWEEPING ACROSS PORTIONS OF BEACHES...VERY STRONG BREAKING WAVES...AND STRONG LONGSHORE AND RIP CURRENTS. BREAKING WAVES MAY OCCASIONALLY IMPACT HARBORS MAKING NAVIGATING THE HARBOR CHANNEL DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK...AND DANGEROUS CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. ANYONE ENTERING THE WATER COULD FACE SIGNIFICANT INJURY OR DEATH. && $$ HIZ025-280400- /O.EXT.PHFO.SU.Y.0043.171027T1333Z-171029T0400Z/ BIG ISLAND NORTH AND EAST- 348 AM HST FRI OCT 27 2017 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND... MAINLY IN THE PUNA DISTRICT...RISING TO 10 TO 15 FEET THIS MORNING. * TIMING...RISING THROUGH THE DAY TODAY...PEAKING LATE THIS AFTERNOON AND EVENING...THEN GRADUALLY SUBSIDING THROUGH SATURDAY. * 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. && $$ HIZ018-280400- /O.CON.PHFO.SU.Y.0043.000000T0000Z-171029T0400Z/ MAUI LEEWARD WEST- 348 AM HST FRI OCT 27 2017 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG WEST FACING SHORES OF MAUI...BUILDING TO 10 TO 15 FEET THIS MORNING. * TIMING...RISING THIS MORNING...PEAKING THIS AFTERNOON...THEN GRADUALLY SUBSIDING THROUGH SATURDAY. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BEACHGOERS...SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
560 WHHW40 PHFO 280130 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 330 PM HST FRI OCT 27 2017 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR WEST FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF THE BIG ISLAND... .A LONG PERIOD LARGE NORTHWEST SWELL WILL PEAK ACROSS THE HAWAIIAN WATERS TONIGHT. WARNING LEVEL SURF WILL CONTINUE ALONG NORTH AND WEST FACING SHORES OF MOST ISLANDS THROUGH SATURDAY. THE SWELL WILL SLOWLY DECLINE THROUGH THE DAY SATURDAY. HIZ001>003-006>009-012-013-017-019-020-281430- /O.CON.PHFO.SU.W.0013.000000T0000Z-171029T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-OLOMANA-MOLOKAI WINDWARD- MOLOKAI LEEWARD-MAUI WINDWARD WEST-MAUI CENTRAL VALLEY- WINDWARD HALEAKALA- 330 PM HST FRI OCT 27 2017 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG NORTH AND WEST FACING SHORES OF NIIHAU KAUAI AND MOLOKAI AND NORTH FACING SHORES OF OAHU AND MAUI...25 TO 35 FEET TONIGHT...DROPPING TO 20 TO 25 FEET SATURDAY. ALONG WEST FACING SHORES OF OAHU...15 TO 22 FEET...DROPPING TO 10 TO 18 FEET SATURDAY. * TIMING...PEAKING TONIGHT...THEN SLOWLY SUBSIDING THROUGH SATURDAY. * 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. && $$ HIZ018-025-281430- /O.CON.PHFO.SU.Y.0043.000000T0000Z-171029T0400Z/ MAUI LEEWARD WEST-BIG ISLAND NORTH AND EAST- 330 PM HST FRI OCT 27 2017 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST SATURDAY... * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND... MAINLY IN THE PUNA DISTRICT...10 TO 15 FEET. ALONG WEST FACING SHORES OF MAUI...10 TO 15 FEET. * TIMING...PEAKING THIS EVENING...THEN GRADUALLY SUBSIDING THROUGH SATURDAY. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BEACHGOERS...SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
665 WHHW40 PHFO 281330 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 330 AM HST SAT OCT 28 2017 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI... ...HIGH SURF ADVISORY FOR WEST FACING SHORES OF MAUI AND FOR NORTH FACING SHORES OF THE BIG ISLAND... .A LARGE...LONG-PERIOD NORTHWEST SWELL WILL CONTINUE TO PRODUCE DANGEROUS CONDITIONS IN THE SURF ZONE ALONG MOST NORTH AND WEST FACING SHORES OF THE ISLANDS THROUGH THIS AFTERNOON. THE SWELL WILL GRADUALLY SUBSIDE LATER TODAY AND TONIGHT...WITH ADVISORY LEVEL SURF CONTINUING ALONG MOST NORTH AND WEST FACING SHORES OF THE SMALLER ISLANDS FROM THIS EVENING INTO SUNDAY MORNING. HIZ001>003-006>009-012-013-017-019-020-290230- /O.CON.PHFO.SU.W.0013.000000T0000Z-171029T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-OLOMANA-MOLOKAI WINDWARD- MOLOKAI LEEWARD-MAUI WINDWARD WEST-MAUI CENTRAL VALLEY- WINDWARD HALEAKALA- 330 AM HST SAT OCT 28 2017 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...ALONG NORTH AND WEST FACING SHORES OF NIIHAU KAUAI AND MOLOKAI...AND NORTH FACING SHORES OF OAHU AND MAUI...20 TO 30 FEET. ALONG WEST FACING SHORES OF OAHU...15 TO 20 FEET. * 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 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. && $$ HIZ018-025-290230- /O.CON.PHFO.SU.Y.0043.000000T0000Z-171029T0400Z/ MAUI LEEWARD WEST-BIG ISLAND NORTH AND EAST- 330 AM HST SAT OCT 28 2017 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND AND ALONG WEST FACING SHORES OF MAUI...10 TO 15 FEET. * TIMING...THOUGH THIS AFTERNOON. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BEACHGOERS...SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$ HOUSTON
026 WHHW40 PHFO 290150 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 350 PM HST SAT OCT 28 2017 ...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND FOR NORTH FACING SHORES OF MAUI AND THE BIG ISLAND... .A LARGE...THOUGH DECLINING...NORTHWEST SWELL WILL PRODUCE ADVISORY LEVEL SURF ALONG NORTH AND SOME WEST FACING SHORES THROUGH THE NIGHT. SURF WILL BE AT BORDER LINE ADVISORY LEVEL BY SUNDAY MORNING. HIZ001>003-006>009-012-013-017-019-020-291500- /O.CAN.PHFO.SU.W.0013.000000T0000Z-171029T0400Z/ /O.EXB.PHFO.SU.Y.0043.000000T0000Z-171029T1600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-OLOMANA-MOLOKAI WINDWARD- MOLOKAI LEEWARD-MAUI WINDWARD WEST-MAUI CENTRAL VALLEY- WINDWARD HALEAKALA- 350 PM HST SAT OCT 28 2017 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM HST SUNDAY... ...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 SUNDAY. THE HIGH SURF WARNING HAS BEEN CANCELLED. * SURF...ALONG NORTH FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND MAUI...18 TO 24 FEET THROUGH THE EVENING AND DECREASING TO 15 TO 20 FEET AFTER MIDNIGHT. ALONG WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI...10 TO 18 FEET THROUGH THE EVENING AND DECREASING TO 8 TO 12 FEET AFTER MIDNIGHT. * TIMING...SURF WILL STEADILY DECLINE THROUGH THE NIGHT AND WILL BE AT BORDER LINE ADVISORY LEVELS BY SUNDAY MORNING. * 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. && $$ HIZ018-290300- /O.CAN.PHFO.SU.Y.0043.000000T0000Z-171029T0400Z/ MAUI LEEWARD WEST- 350 PM HST SAT OCT 28 2017 ...HIGH SURF ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE HIGH SURF ADVISORY. SURF HAS DECLINED BELOW THE ADVISORY LEVEL ACROSS THIS PORTION OF WEST MAUI. $$ HIZ025-291500- /O.EXT.PHFO.SU.Y.0043.000000T0000Z-171029T1600Z/ BIG ISLAND NORTH AND EAST- 350 PM HST SAT OCT 28 2017 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 AM HST SUNDAY... * SURF...ALONG EXPOSED NORTH FACING SHORES OF THE BIG ISLAND...10 TO 15 FEET. * TIMING...THROUGH THE NIGHT. * 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. && $$ WROE
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 4:05 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 64 hr |
| Oct 26, 4:24 PM HST | Small Craft Advisory | HFO | 50 hr |
Nearby
High Surf Warnings in Hawaii, 2017Every high surf warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.