Alert archive / Hawaii / Wind Advisories in 2012
Wind Advisory 18, NWS Honolulu, HI
NWS Honolulu, HI issued this wind advisory at Apr 8, 2012, 9:37 AM HST for Hawaii County, Kalawao County, Hawaii. It took effect at Apr 8, 2012, 12:00 PM HST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Apr 8, 2012, 9:37 AM HST (19:37 UTC)
- In effect from
- Apr 8, 2012, 12:00 PM HST
- Expired
- Apr 8, 2012, 8:42 PM HST
- In force
- 9 hr
- Issued by
- NWS Honolulu, HI
Counties Hawaii County, HI, Kalawao County, HI
The radar
The Kamuela/Kohala Apt radar (PHKM), 57 km from the middle of the area, began a volume at 19:36 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
Hilo, (PITO), launched 12:00Z, 7.6 hours before the alert went out and 150 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
- 231 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
201 WWHW70 PHFO 081937 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 937 AM HST SUN APR 8 2012 ...WIND ADVISORY FOR PORTIONS OF MAUI COUNTY AND THE BIG ISLAND... .A SHEAR LINE JUST NORTH OF KAUAI WILL MOVE SOUTH ACROSS THE STATE THROUGH TONIGHT BEFORE WEAKENING. STRONG AND GUSTY NORTHEAST WINDS BEHIND THE SHEAR LINE WILL BE ACCELERATED THROUGH THE CHANNELS AND VALLEYS AND DOWNSLOPE ACROSS LEEWARD SECTIONS. HIZ012>015-018-019-026-090800- /O.NEW.PHFO.WI.Y.0018.120408T2200Z-120409T0800Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-KOHALA- INCLUDING THE CITIES OF...KALAUPAPA...KAUNAKAKAI...MANELE... LANAI CITY...LAHAINA...KAANAPALI...KAHULUI...WAIKOLOA 937 AM HST SUN APR 8 2012 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 10 PM HST THIS EVENING... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 10 PM HST THIS EVENING. * WINDS...NORTHEAST TO 30 MPH WITH GUSTS UP TO 50 MPH. * TIMING...THIS AFTERNOON AND EVENING. * IMPACTS...WINDS THIS STRONG CAN BRING DOWN TREE BRANCHES AND MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF AT LEAST 30 MPH...WITH GUSTS OVER 50 MPH...ARE EXPECTED. MOTORISTS SHOULD USE EXTRA CAUTION. && $$ BRAVENDER
2 follow-up statements
302 WWHW70 PHFO 090139 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 339 PM HST SUN APR 8 2012 ...WIND ADVISORY FOR PORTIONS OF MAUI COUNTY AND THE BIG ISLAND... .A SHEAR LINE NEAR KAUAI AND OAHU WILL MOVE SOUTH ACROSS THE STATE THROUGH TONIGHT BEFORE WEAKENING. STRONG AND GUSTY NORTHEAST WINDS BEHIND THE SHEAR LINE WILL BE ACCELERATED THROUGH THE CHANNELS AND VALLEYS AND DOWNSLOPE ACROSS LEEWARD SECTIONS. HIZ012>015-018-019-026-090800- /O.CON.PHFO.WI.Y.0018.000000T0000Z-120409T0800Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-KOHALA- INCLUDING THE CITIES OF...KALAUPAPA...KAUNAKAKAI...MANELE... LANAI CITY...LAHAINA...KAANAPALI...KAHULUI...WAIKOLOA 339 PM HST SUN APR 8 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM HST THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM HST THIS EVENING. * WINDS...NORTHEAST TO 30 MPH WITH GUSTS UP TO 50 MPH. * TIMING...THIS EVENING. * IMPACTS...WINDS THIS STRONG CAN BRING DOWN TREE BRANCHES AND MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF AT LEAST 30 MPH...WITH GUSTS OVER 50 MPH...ARE EXPECTED. MOTORISTS SHOULD USE EXTRA CAUTION. && $$ BRAVENDER
416 WWHW70 PHFO 090642 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 842 PM HST SUN APR 8 2012 HIZ012>015-018-019-026-090745- /O.CAN.PHFO.WI.Y.0018.000000T0000Z-120409T0800Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-KOHALA- INCLUDING THE CITIES OF...KALAUPAPA...KAUNAKAKAI...MANELE... LANAI CITY...LAHAINA...KAANAPALI...KAHULUI...WAIKOLOA 842 PM HST SUN APR 8 2012 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND ADVISORY. WINDS REMAIN GUSTY ACROSS THE AREA...BUT WIDESPREAD SUSTAINED WINDS ABOVE 25 MPH ARE NO LONGER PRESENT. THE WIND ADVISORY IS THEREFORE CANCELLED. $$ POWELL
Nearby
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.