Alert archive / Hawaii / High Surf Advisories in 2015
High Surf Advisory 21, NWS Honolulu, HI
NWS Honolulu, HI issued this high surf advisory at Mar 22, 2015, 3:05 AM HST for Honolulu County, Kauai County, Kalawao County, Hawaii. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Mar 22, 2015, 3:05 AM HST (13:05 UTC)
- Expired
- Mar 22, 2015, 7:08 AM HST
- In force
- 4 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 13:06 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 12:00Z, 1.1 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
- 135 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
420 WHHW40 PHFO 221305 CFWHFO URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 305 AM HST SUN MAR 22 2015 ...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU AND KAUAI...AND FOR NORTH FACING SHORES OF OAHU MOLOKAI AND MAUI... .THE INCREASING NORTH NORTHWEST SWELL HAS PUSHED SURF HEIGHTS INTO ADVISORY LEVELS OVER THE MENTIONED SHORES. THIS SWELL IS EXPECTED TO DECREASE THIS AFTERNOON AND THROUGH THE EVENING HOURS. HIZ001>003-007-008-012-013-017-020-222200- /O.NEW.PHFO.SU.Y.0021.150322T1305Z-150322T2200Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-OAHU NORTH SHORE-OAHU KOOLAU- MOLOKAI WINDWARD-MOLOKAI LEEWARD-MAUI WINDWARD WEST- WINDWARD HALEAKALA- 305 AM HST SUN MAR 22 2015 ...HIGH SURF ADVISORY IN EFFECT UNTIL NOON HST TODAY... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH SURF ADVISORY...WHICH IS IN EFFECT UNTIL NOON HST TODAY. * SURF...10 TO 15 FEET ALONG NORTH AND WEST FACING SHORES OF KAUAI AND NIIHAU...AND ALONG NORTH FACING SHORES OF OAHU...MOLOKAI AND MAUI. * TIMING...THROUGH NOON TODAY. * 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. && $$ REYNES
1 follow-up statement
276 WHHW40 PHFO 221708 CFWHFO URGENT - IMMEDIATE BROADCAST REQUESTED COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 708 AM HST SUN MAR 22 2015 ...HIGH SURF ADVISORY IS CANCELLED... HIZ001>003-007-008-012-013-017-020-221815- /O.CAN.PHFO.SU.Y.0021.000000T0000Z-150322T2200Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-OAHU NORTH SHORE-OAHU KOOLAU- MOLOKAI WINDWARD-MOLOKAI LEEWARD-MAUI WINDWARD WEST- WINDWARD HALEAKALA- 708 AM HST SUN MAR 22 2015 ...HIGH SURF ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE HIGH SURF ADVISORY. SURF IS BELOW THE ADVISORY LEVEL. $$ DONALDSON
Nearby
High Surf Advisories in Hawaii, 2015Every high surf advisory 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.