Alert archive / Hawaii / High Surf Warnings in 2015
High Surf Warning 13, NWS Honolulu, HI
NWS Honolulu, HI issued this high surf warning at Dec 7, 2015, 3:38 PM HST for Honolulu County, Kauai County, Kalawao County, Hawaii. It took effect at Dec 8, 2015, 9:00 AM HST. It was in force for 31 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
- Dec 7, 2015, 3:38 PM HST (01:38 UTC)
- In effect from
- Dec 8, 2015, 9:00 AM HST
- Expired
- Dec 9, 2015, 3:38 PM HST
- In force
- 31 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 01:37 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, 1.6 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
- 9 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1015 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
375 WHHW40 PHFO 080138 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 338 PM HST MON DEC 7 2015 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI TUESDAY THROUGH WEDNESDAY... ...HIGH SURF WARNING FOR NORTH FACING SHORES OF MAUI TUESDAY THROUGH WEDNESDAY... .A LARGE NORTHWEST SWELL WILL BRING ADVISORY LEVEL SURF TO THE AFFECTED SHORES TUESDAY...AND RISE TO WARNING LEVELS LATER IN THE DAY. THE SURF WILL PEAK TUESDAY NIGHT. HIZ001>003-006>008-012-013-017-019-020-081445- /O.NEW.PHFO.SU.W.0013.151208T1900Z-151210T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 338 PM HST MON DEC 7 2015 ...HIGH SURF WARNING IN EFFECT FROM 9 AM TUESDAY TO 6 PM WEDNESDAY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI...AND NORTH FACING SHORES OF MAUI... * SURF...ALONG NORTH FACING SHORES PEAKING AT 20 TO 30 FEET. ALONG WEST FACING SHORES PEAKING AT 12 TO 20 FEET. * TIMING...SURF WILL BUILD TUESDAY...WITH ADVISORY LEVEL SURF EXPECTED TUESDAY MORNING ON KAUAI AND BY AFTERNOON ON MAUI. EXPECT PEAK SURF HEIGHTS OVERNIGHT TUESDAY 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. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
5 follow-up statements
323 WHHW40 PHFO 081318 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 318 AM HST TUE DEC 8 2015 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI THIS MORNING THROUGH WEDNESDAY... ...HIGH SURF WARNING FOR NORTH FACING SHORES OF MAUI THIS MORNING THROUGH WEDNESDAY... .A LARGE NORTHWEST SWELL WILL BRING ADVISORY LEVEL SURF TO THE AFFECTED SHORES TODAY...AND RISE TO WARNING LEVELS THIS EVENING. THE SURF WILL PEAK TONIGHT THROUGH EARLY WEDNESDAY. HIZ001>003-006>008-012-013-017-019-020-090230- /O.CON.PHFO.SU.W.0013.151208T1900Z-151210T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 318 AM HST TUE DEC 8 2015 ...HIGH SURF WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM HST WEDNESDAY... * SURF...ALONG NORTH FACING SHORES PEAKING AT 20 TO 30 FEET. ALONG WEST FACING SHORES PEAKING AT 12 TO 20 FEET. * TIMING...SURF WILL BUILD TODAY...REACHING ADVISORY LEVEL LATER TODAY ON KAUAI. EXPECT PEAK SURF HEIGHTS TONIGHT INTO WEDNESDAY. * IMPACTS...HIGH...EXPECT OCEAN WATER OCCASIONALLY SWEEPING ACROSS PORTIONS OF BEACHES...VERY STRONG BREAKING WAVES AND STRONG LONGSHORE AND RIP CURRENTS. BREAKING WAVES MAY OCCASIONALLY IMPACT HARBORS MAKING NAVIGATING THE HARBOR CHANNEL DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK...AND DANGEROUS CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
073 WHHW40 PHFO 081906 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 906 AM HST TUE DEC 8 2015 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI THROUGH WEDNESDAY... ...HIGH SURF WARNING FOR NORTH FACING SHORES OF MAUI THROUGH WEDNESDAY... .THE INCOMING LARGE NORTHWEST SWELL IS DELAYED SOME...WITH ADVISORY LEVEL SURF NOW EXPECTED TO REACH KAUAI THIS AFTERNOON...OAHU AND MOLOKAI THIS EVENING...AND MAUI TONIGHT. SURF WILL BUILD TO WARNING LEVELS TONIGHT THROUGH EARLY WEDNESDAY. HIZ001>003-006>008-012-013-017-019-020-090815- /O.CON.PHFO.SU.W.0013.000000T0000Z-151210T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 906 AM HST TUE DEC 8 2015 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...ALONG NORTH FACING SHORES PEAKING AT 20 TO 30 FEET. ALONG WEST FACING SHORES PEAKING AT 12 TO 20 FEET. * TIMING...SURF WILL BUILD TODAY...REACHING ADVISORY LEVELS THIS AFTERNOON ON KAUAI...OAHU AND MOLOKAI THIS EVENING...AND MAUI TONIGHT. EXPECT PEAK SURF HEIGHTS 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. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
294 WHHW40 PHFO 090131 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 331 PM HST TUE DEC 8 2015 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI THROUGH WEDNESDAY... ...HIGH SURF WARNING FOR NORTH FACING SHORES OF MAUI THROUGH WEDNESDAY... .THE CURRENT NORTHWEST SWELL IS EXPECTED TO REACH WARNING LEVELS OVERNIGHT AND WEDNESDAY...AND THEN GRADUALLY DECLINE THROUGH THE WEEK. HIZ001>003-006>008-012-013-017-019-020-091445- /O.CON.PHFO.SU.W.0013.000000T0000Z-151210T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 331 PM HST TUE DEC 8 2015 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * SURF...ALONG NORTH FACING SHORES PEAKING AT 20 TO 30 FEET. ALONG WEST FACING SHORES PEAKING AT 12 TO 20 FEET. * TIMING...SURF WILL BUILD TO WARNING LEVELS TONIGHT...WITH PEAK SURF HEIGHTS TONIGHT INTO WEDNESDAY. * IMPACTS...HIGH...EXPECT OCEAN WATER OCCASIONALLY SWEEPING ACROSS PORTIONS OF BEACHES...VERY STRONG BREAKING WAVES AND STRONG LONGSHORE AND RIP CURRENTS. BREAKING WAVES MAY OCCASIONALLY IMPACT HARBORS MAKING NAVIGATING THE HARBOR CHANNEL DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK...AND DANGEROUS CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
056 WHHW40 PHFO 091324 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 324 AM HST WED DEC 9 2015 ...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI THROUGH THIS EVENING... ...HIGH SURF WARNING FOR NORTH FACING SHORES OF MAUI THROUGH THIS EVENING... .THE CURRENT NORTHWEST SWELL WILL PEAK TODAY...AND THEN GRADUALLY DECLINE TONIGHT THROUGH THURSDAY. HIZ001>003-006>008-012-013-017-019-020-100230- /O.CON.PHFO.SU.W.0013.000000T0000Z-151210T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 324 AM HST WED DEC 9 2015 ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * SURF...ALONG NORTH FACING SHORES...20 TO 30 FEET TODAY...DECREASING TO 16 TO 24 FEET TONIGHT AND THURSDAY. ALONG WEST FACING SHORES...12 TO 20 FEET TODAY...LOWERING TO 10 TO 16 FEET TONIGHT AND THURSDAY. * TIMING...SURF PEAKING TODAY...THEN SUBSIDING TONIGHT AND THURSDAY. * 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. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$
920 WHHW40 PHFO 100138 CFWHFO COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 338 PM HST WED DEC 9 2015 ...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI THROUGH THURSDAY... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF MAUI THROUGH THURSDAY... .A NORTHWEST SWELL PEAKED EARLIER TODAY AND WILL GRADUALLY DECLINE THROUGH THURSDAY. HIZ001>003-006>008-012-013-017-019-020-101445- /O.CAN.PHFO.SU.W.0013.000000T0000Z-151210T0400Z/ /O.NEW.PHFO.SU.Y.0064.151210T0138Z-151211T0400Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-WAIANAE COAST- OAHU NORTH SHORE-OAHU KOOLAU-MOLOKAI WINDWARD-MOLOKAI LEEWARD- MAUI WINDWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA- 338 PM HST WED DEC 9 2015 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THURSDAY... ...HIGH SURF WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM HST THURSDAY. THE HIGH SURF WARNING HAS BEEN CANCELLED. * SURF...ALONG NORTH FACING SHORES...16 TO 24 FEET TONIGHT... DECREASING TO 12 TO 18 FEET THURSDAY. ALONG WEST FACING SHORES...10 TO 16 FEET TONIGHT...LOWERING TO 8 TO 14 FEET THURSDAY. * TIMING...TONIGHT AND THURSDAY. * IMPACTS...MODERATE...EXPECT STRONG BREAKING WAVES...SHORE BREAK...AND STRONG LONGSHORE AND RIP CURRENTS MAKING SWIMMING DIFFICULT AND DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE BREAKING SURF...SIGNIFICANT SHOREBREAK...AND DANGEROUS CURRENTS MAKE ENTERING THE WATER VERY HAZARDOUS. BEACHGOERS... SWIMMERS...AND SURFERS SHOULD HEED ALL ADVICE GIVEN BY OCEAN SAFETY OFFICIALS AND EXERCISE CAUTION. && $$ MORRISON
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 7, 3:46 PM HST | Small Craft Advisory | HFO | 5 days |
Nearby
High Surf Warnings in Hawaii, 2015Every high surf warning in 2015
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.