Alert archive / Hawaii / Wind Advisories in 2006
Wind Advisory 6, NWS Honolulu, HI
NWS Honolulu, HI issued this wind advisory at Feb 7, 2006, 3:58 PM HST for 4 counties in Hawaii. It took effect at Feb 8, 2006, 2:00 AM HST. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Feb 7, 2006, 3:58 PM HST (01:58 UTC)
- In effect from
- Feb 8, 2006, 2:00 AM HST
- Expired
- Feb 9, 2006, 12:00 AM HST
- In force
- 22 hr
- Issued by
- NWS Honolulu, HI
Counties Hawaii County, HI, Honolulu County, HI, Kalawao County, HI, Kauai County, HI
The nearest sounding before it
Lihue, (PHLI), launched 00:00Z, 2.0 hours before the alert went out and 214 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
- 1502 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWHW70 PHFO 080158 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 358 PM HST TUE FEB 7 2006 ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU FROM 2 AM WEDNESDAY UNTIL 8 PM WEDNESDAY... .A COLD FRONT WILL SWEEP THROUGH THE ISLAND CHAIN LATE TONIGHT AND WEDNESDAY...WITH STRONG AND GUSTY NORTH WINDS SPREADING OVER THE ISLANDS IN IT/S WAKE. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 MPH WITH FREQUENT GUSTS ABOVE 50 MPH ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ001>011-081400- /O.NEW.PHFO.WI.Y.0006.060208T1200Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 358 PM HST TUE FEB 7 2006 ...WIND ADVISORY IN EFFECT FROM 2 AM TO 8 PM HST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 PM HST WEDNESDAY. NORTH WINDS WILL INCREASE TO 20 TO 30 MPH LATE TONIGHT...AND CONTINUE THROUGH THE DAY ON WEDNESDAY. THE WINDS WILL GRADUALLY SUBSIDE AFTER SUNSET ON WEDNESDAY. GUSTS AS HIGH AS 50 MPH CAN BE EXPECTED ON THE SOUTH AND WEST SIDES OF NIIHAU...KAUAI AND OAHU...ESPECIALLY ALONG RIDGE LINES AND IN VALLEYS. $$ BIRCHARD
6 follow-up statements
000 WWHW70 PHFO 080703 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 903 PM HST TUE FEB 7 2006 ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU FROM 2 AM WEDNESDAY UNTIL 8 PM WEDNESDAY... ...WIND ADVISORY FOR THE HALEAKALA SUMMIT AREA FROM 10 AM UNTIL 8 PM WEDNESDAY... .A COLD FRONT WILL SWEEP THROUGH THE ISLAND CHAIN OVERNIGHT AND WEDNESDAY. STRONG AND GUSTY NORTH WINDS WILL FILL IN BEHIND THE COLD FRONT. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 MPH AND/OR FREQUENT GUSTS ABOVE 50 MPH ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ022-081915- /O.EXB.PHFO.WI.Y.0006.060208T2000Z-060209T0600Z/ HALEAKALA SUMMIT- 903 PM HST TUE FEB 7 2006 ...WIND ADVISORY IN EFFECT FROM 10 AM TO 8 PM HST WEDNESDAY... NORTH WINDS WILL BUILD THROUGHOUT THE MORNING WEDNESDAY...REACHING 25 TO 40 MPH WITH GUSTS TO 55 MPH BY NOON. PERSONS VISITING THE SUMMIT AREA...WHETHER DRIVING...BIKING...OR HIKING SHOULD EXERCISE EXTREME CAUTIONS DUE TO STRONG CROSSWINDS. HIGH PROFILE VEHICLES ARE PARTICULARLY AT RISK. $$ HIZ001>011-081915- /O.CON.PHFO.WI.Y.0006.060208T1200Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 903 PM HST TUE FEB 7 2006 ...WIND ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 PM HST WEDNESDAY... NORTH WINDS WILL INCREASE TO 20 TO 30 MPH LATE TONIGHT AND WEDNESDAY MORNING...AND CONTINUE THROUGH THE DAY ON WEDNESDAY. THE WINDS WILL GRADUALLY SUBSIDE AFTER SUNSET ON WEDNESDAY. GUSTS AS HIGH AS 50 MPH CAN BE EXPECTED ON THE SOUTH AND WEST SIDES OF NIIHAU...KAUAI AND OAHU... ESPECIALLY ALONG RIDGE LINES AND IN VALLEYS. $$
000 WWHW70 PHFO 081354 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 354 AM HST WED FEB 8 2006 ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU UNTIL 8 PM THIS EVENING... ...WIND ADVISORY FOR MOLOKAI LANAI MAUI AND KAHOOLAWE FROM 10 AM UNTIL MIDNIGHT TONIGHT... .A FAST MOVING COLD FRONT WILL SWEEP ACROSS THE ISLAND CHAIN TODAY. STRONG AND GUSTY NORTH WINDS WILL FILL IN BEHIND THE COLD FRONT. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 MPH AND/OR FREQUENT GUSTS TO 50 MPH ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ012>021-090200- /O.EXB.PHFO.WI.Y.0006.060208T2000Z-060209T1000Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD HALEAKALA- 354 AM HST WED FEB 8 2006 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT HST TONIGHT... NORTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS AS HIGH AS 50 MPH BY THE EARLY AFTERNOON AND PERSIST THROUGH THE EVENING. $$ HIZ022-090200- /O.EXT.PHFO.WI.Y.0006.060208T2000Z-060209T1000Z/ HALEAKALA SUMMIT- 354 AM HST WED FEB 8 2006 ...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT HST TONIGHT... NORTH WINDS INCREASE TO 25 TO 40 MPH WITH GUSTS TO 55 MPH BY THE EARLY AFTERNOON AND PERSIST THROUGH THE EVENING. PERSONS VISITING THE SUMMIT AREA...WHETHER DRIVING...BIKING...OR HIKING SHOULD EXERCISE EXTREME CAUTIONS DUE TO STRONG CROSS WINDS. HIGH PROFILE VEHICLES ARE PARTICULARLY AT RISK. $$ HIZ001>011-090200- /O.CON.PHFO.WI.Y.0006.000000T0000Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 354 AM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM HST THIS EVENING... NORTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS AS HIGH AS 50 MPH THIS MORNING AND PERSIST THROUGH THE EARLY EVENING. $$ TANABE
000 WWHW70 PHFO 082321 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 121 PM HST WED FEB 8 2006 ...WIND ADVISORY NOW IN EFFECT FOR THE BIG ISLAND UNTIL MIDNIGHT TONIGHT... ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU UNTIL 8 PM THIS EVENING... ...WIND ADVISORY FOR MOLOKAI LANAI MAUI AND KAHOOLAWE UNTIL MIDNIGHT TONIGHT... .STRONG AND GUSTY NORTH WINDS WILL INCREASE OVER THE ISLANDS IN THE WAKE OF A COLD FRONT. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 TO 39 MPH...AND/OR FREQUENT GUSTS TO 50 MPH...ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ023>028-090600- /O.EXA.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-KOHALA- BIG ISLAND INTERIOR-BIG ISLAND SUMMITS- 121 PM HST WED FEB 8 2006 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT HST TONIGHT... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT HST TONIGHT. ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT HST TONIGHT... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT HST TONIGHT. STRONG NORTH WINDS WILL BE INCREASING OVER THE BIG ISLAND THIS AFTERNOON...REACHING SPEEDS OF 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH IN EXPOSED AREAS. THE GUSTY WINDS WILL CONTINUE THROUGH THE EVENING HOURS TONIGHT...AND ARE EXPECTED TO BE BELOW ADVISORY LEVELS BY MIDNIGHT. $$ HIZ001>011-090600- /O.CON.PHFO.WI.Y.0006.000000T0000Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 121 PM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM HST THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM HST THIS EVENING... NORTH WINDS WILL BE TO 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH...THROUGH THIS EVENING. WINDS WILL GRADUALLY DIMINISH AFTER DARK. ALTHOUGH WINDS WILL REMAIN BREEZY OVERNIGHT...THEY ARE EXPECTED TO BE BELOW ADVISORY SPEEDS BY 8 PM. $$ HIZ012>022-090600- /O.CON.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD HALEAKALA- HALEAKALA SUMMIT- 121 PM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT HST TONIGHT... NORTH WINDS WILL BE 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH... THROUGH THE AFTERNOON AND EVENING HOURS. WINDS ARE EXPECTED TO GRADUALLY DIMINISH OVERNIGHT...AND DROP BELOW ADVISORY SPEEDS BY MIDNIGHT. SUSTAINED WINDS NEAR 40 MPH...WITH GUSTS TO 55 MPH...WILL CONTINUE OVER THE SUMMIT OF HALEAKALA THROUGH THIS EVENING. WINDS ARE EXPECTED TO GRADUALLY DIMINISH OVERNIGHT...AND DROP BELOW ADVISORY SPEEDS BY MIDNIGHT. $$ BIRCHARD
000 WWHW70 PHFO 090408 CCA NPWHFO URGENT - WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE HONOLULU HI 604 PM HST WED FEB 8 2006 ...WIND ADVISORY IN EFFECT FOR THE BIG ISLAND UNTIL MIDNIGHT TONIGHT... ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU UNTIL 8 PM THIS EVENING... ...WIND ADVISORY FOR MOLOKAI LANAI MAUI AND KAHOOLAWE UNTIL MIDNIGHT TONIGHT... .STRONG AND GUSTY NORTH WINDS WILL INCREASE OVER THE ISLANDS IN THE WAKE OF A COLD FRONT. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 TO 39 MPH...AND/OR FREQUENT GUSTS TO 50 MPH...ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ023>028-091000- /O.COR.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-KOHALA- BIG ISLAND INTERIOR-BIG ISLAND SUMMITS- 604 PM HST WED FEB 8 2006 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT HST TONIGHT... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT HST TONIGHT. STRONG NORTH WINDS WILL BE INCREASING OVER THE BIG ISLAND THIS AFTERNOON...REACHING SPEEDS OF 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH IN EXPOSED AREAS. THE GUSTY WINDS WILL CONTINUE THROUGH THE EVENING HOURS TONIGHT...AND ARE EXPECTED TO BE BELOW ADVISORY LEVELS BY MIDNIGHT. $$ HIZ001>011-090600- /O.COR.PHFO.WI.Y.0006.000000T0000Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 604 PM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM HST THIS EVENING... NORTH WINDS WILL BE TO 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH...THROUGH THIS EVENING. WINDS WILL GRADUALLY DIMINISH AFTER DARK. ALTHOUGH WINDS WILL REMAIN BREEZY OVERNIGHT...THEY ARE EXPECTED TO BE BELOW ADVISORY SPEEDS BY 8 PM. $$ HIZ012>022-091000- /O.CON.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD HALEAKALA- HALEAKALA SUMMIT- 604 PM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT HST TONIGHT... NORTH WINDS WILL BE 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH... THROUGH THE AFTERNOON AND EVENING HOURS. WINDS ARE EXPECTED TO GRADUALLY DIMINISH OVERNIGHT...AND DROP BELOW ADVISORY SPEEDS BY MIDNIGHT. SUSTAINED WINDS NEAR 40 MPH...WITH GUSTS TO 55 MPH...WILL CONTINUE OVER THE SUMMIT OF HALEAKALA THROUGH THIS EVENING. WINDS ARE EXPECTED TO GRADUALLY DIMINISH OVERNIGHT...AND DROP BELOW ADVISORY SPEEDS BY MIDNIGHT. $$ BIRCHARD
000 WWHW70 PHFO 090555 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 755 PM HST WED FEB 8 2006 ...WIND ADVISORY FOR NIIHAU KAUAI AND OAHU ALLOWED TO EXPIRE... ...WIND ADVISORY FOR MOLOKAI LANAI MAUI KAHOOLAWE AND BIG ISLAND UNTIL MIDNIGHT TONIGHT... .STRONG AND GUSTY NORTH WINDS WILL CONTINUE OVER THE ISLANDS OF MAUI COUNTY AND THE BIG ISLAND IN THE WAKE OF A COLD FRONT. A WIND ADVISORY MEANS THAT STRONG WINDS OF 30 TO 39 MPH...AND/OR FREQUENT GUSTS TO 50 MPH...ARE EXPECTED. SECURE ANY LOOSE OBJECTS THAT MAY BECOME AIRBORNE...OR MOVE THEM INDOORS. HIZ001>011-090700- /O.EXP.PHFO.WI.Y.0006.000000T0000Z-060209T0600Z/ NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS- OAHU SOUTH SHORE-WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU- OLOMANA-CENTRAL OAHU-WAIANAE MOUNTAINS- 755 PM HST WED FEB 8 2006 ...WIND ADVISORY WILL EXPIRE AT 8 PM HST THIS EVENING... WIND REPORTS AROUND KAUAI AND OAHU CONTINUE THEIR DOWNWARD TREND...AND THUS THE WIND ADVISORY FOR THESE AREAS HAS BEEN ALLOWED TO EXPIRE. $$ HIZ012>028-091000- /O.CON.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD HALEAKALA- HALEAKALA SUMMIT-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST- KOHALA-BIG ISLAND INTERIOR-BIG ISLAND SUMMITS- 755 PM HST WED FEB 8 2006 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT HST TONIGHT... NORTH WINDS OF 20 TO 35 MPH...WITH GUSTS AS HIGH AS 50 MPH...ARE EXPECTED THIS EVENING OVER THE LOWER SLOPES OF MAUI COUNTY AND THE BIG ISLAND. WINDS ARE EXPECTED TO DIMINISH OVERNIGHT...AND DROP BELOW ADVISORY SPEEDS BY MIDNIGHT. SUSTAINED WINDS NEAR 40 MPH...WITH GUSTS AS HIGH AS 55 MPH...ARE POSSIBLE OVER THE SUMMITS OF HALEAKALA...MAUNA KEA AND MAUNA LOA THROUGH THIS EVENING. WINDS ARE EXPECTED TO GRADUALLY DIMINISH OVERNIGHT...DROPPING BELOW ADVISORY SPEEDS BY MIDNIGHT. $$
000 WWHW70 PHFO 090940 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 1140 PM HST WED FEB 8 2006 ...WIND ADVISORY FOR MOLOKAI LANAI MAUI KAHOOLAWE AND BIG ISLAND ALLOWED TO EXPIRE... .WINDS HAVE DECREASED OVER THE ISLANDS AND HAVE FALLEN BELOW ADVISORY LEVELS. THUS THE WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE. HIZ012>028-091045- /O.EXP.PHFO.WI.Y.0006.000000T0000Z-060209T1000Z/ MOLOKAI WINDWARD-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA- KAHOOLAWE-MAUI WINDWARD WEST-MAUI LEEWARD WEST- MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD HALEAKALA- HALEAKALA SUMMIT-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST- KOHALA-BIG ISLAND INTERIOR-BIG ISLAND SUMMITS- 1140 PM HST WED FEB 8 2006 ...WIND ADVISORY WILL EXPIRE AT MIDNIGHT HST TONIGHT... WINDS WILL REMAIN GUSTY OVERNIGHT...BUT WIND SPEEDS HAVE FALLEN BELOW THE ADVISORY CRITERIA FOR BOTH THE LOWER ELEVATIONS AND THE SUMMITS. $$
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Honolulu, HI wrote its last area forecast discussion before this wind advisory went out at Feb 7, 10:07 AM HST, 5 hours 51 minutes earlier.
Area forecast discussion, Feb 7, 10:07 AM HST, 5 hours 51 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 1007 AM HST TUE FEB 7 2006 .SYNOPSIS... PLEASANT WEATHER WILL CONTINUE TODAY...WITH LIGHT WINDS AND PLENTY OF SUNSHINE. A COLD FRONT APPROACHING FROM THE NORTHWEST WILL MOVE ACROSS THE STATE TONIGHT AND WEDNESDAY...BRINGING SHOWERS...AND GUSTY NORTHERLY WINDS BEHIND IT. COOL AND DRY WEATHER WILL PREVAIL AFTER THE FRONT...WITH NORTH TO NORTHEAST WINDS THROUGH WEDNESDAY. MODERATE TRADE WINDS WILL SETTLE IN BY THURSDAY...AND CONTINUE THROUGH NEXT WEEKEND...ALLOWING FOR WARMER TEMPERATURES AND THE MORE USUAL NIGHT AND MORNING TRADE SHOWERS. && .UPDATE... UPDATED GRIDS/FORECASTS TO CANCEL THE HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES. HAVE ALSO INCREASED SKY COVER WINDWARD KAUAI...AND REMOVED THE ISOLATED POPS MOST AREAS TODAY. .DISCUSSION... A COOL AND DRY AIR MASS REMAINS OVER THE STATE...WITH SURFACE DEW POINTS GENERALLY IN THE 50/S...EXCEPT FOR A MIN OF 45 DEGREES F REPORTED IN THE DRY DOWNSLOPE FLOW EARLY THIS MORNING IN HILO. SATELLITE SHOWS PATCHES OF STABLE STRATOCUMULUS OVER WINDWARD WATERS...WITH SOME OF THIS LOW CLOUD EXTENDING OVER WINDWARD PORTIONS OF THE ISLANDS. OVERNIGHT RAIN GAGE REPORTS REVEAL LITTLE RAINFALL OVER THE PAST 24 HOURS...WITH LITTLE EXPECTED IN THE SHORT TERM. A FRONTAL BOUNDARY HAS BEEN LANGUISHING TO OUR NORTHWEST FOR A COUPLE OF DAYS...AND THE LEADING EDGE OF IT/S ASSOCIATED CLOUD BAND IS ABOUT 300 MILES NORTHWEST OF KAUAI. THE PROXIMITY OF THE FRONT HAS PUSHED THE SURFACE RIDGE...EXTENDING SOUTHWESTWARD TOWARDS THE ISLANDS FROM A HIGH FAR TO THE NORTHEAST...CLOSE TO THE ISLANDS... AND HAS RESULTED IN A LIGHT EAST TO SOUTHEAST WIND FLOW ON THE LARGE SCALE. ISLAND SCALE EFFECTS ARE EXPECTED TO DOMINATE LOCAL WINDS TODAY...WITH MORNING LAND BREEZES GIVING WAY TO AFTERNOON SEA BREEZES. MODELS ARE IN GOOD AGREEMENT IN BRINGING THE FRONTAL BAND AND ITS ASSOCIATED CLOUDS AND SHOWERS OVER THE ISLANDS ON WEDNESDAY. THE FRONT WILL WEAKEN TO A SHEAR LINE...REACHING KAUAI JUST AFTER MIDNIGHT TONIGHT...OAHU BY DAYBREAK WEDNESDAY...AND SPREADING TO THE BIG ISLAND BY LATE AFTERNOON. WITH A LACK OF SIGNIFICANT LOW LEVEL MOISTURE AND UPPER AIR SUPPORT...EXPECT THIS SHEAR LINE TO MOVE THROUGH WITH SHOWERY LOW CLOUDS THAT SUPPORT LIGHT TO MODERATE RAINFALL RATES...ESPECIALLY ALONG NORTH AND NORTHEAST FACING SLOPES AND HIGHER TERRAIN...BUT NOTHING GREATER. HIGH PRESSURE BUILDING NORTH OF THE ISLANDS IN THE WAKE OF THE FRONT WILL SUPPORT STRONG NORTH WINDS IN THE LOW LEVELS...ESPECIALLY IMMEDIATELY AFTER THE SHEAR LINE/S PASSAGE. WHERE THESE 25 TO 30 KT SYNOPTIC-SCALE WINDS INTERACT WITH ISLAND TERRAIN...EXPECT LOCALLY STRONG GUSTS THAT WILL LIKELY BE STRONG ENOUGH TO SUPPORT A WIND ADVISORY...ESPECIALLY ON THE SOUTH SIDES OF THE ISLANDS...WHERE THE WINDS ACCELERATE DOWNSLOPE. THESE NORTH WINDS WILL ALSO BRING ANOTHER SHOT OF DRY AIR INTO OUR AREA...SO EXPECT DEW POINTS TO REMAIN IN THE 50/S FOR MOST OF THE UPCOMING WEEK. THE HIGH WILL MOVE QUICKLY EAST TO THE NORTH OF THE ISLANDS...WITH THE NORTHERLY FLOW BECOMING NORTHEASTERLY ON WEDNESDAY NIGHT...AND VEERING TO THE MORE TYPICAL EAST-NORTHEAST TRADE DIRECTION BY LATE THURSDAY. THIS WILL ALLOW FOR A GRADUAL MODIFICATION /AND WARMING/ OF THE AIR MASS BY FRIDAY. BY THAT TIME...WE CAN EXPECT A FEW WINDWARD SHOWERS...BUT MOST OF THE WEEK...IN THE POST-FRONTAL AIR MASS...WILL BE DRY. HOWEVER...WINDWARD AREAS WILL LIKELY HAVE VARIABLE CLOUDINESS WITH STABLE LOW CLOUDS FOLLOWING DIURNAL TRENDS. && .MARINE... A DECLINING NORTHWEST SWELL WILL PREVAIL TODAY...AND THE HIGH SURF ADVISORY WAS CANCELED A LITTLE WHILE AGO. HOWEVER...ANOTHER SWELL BUILDING OVERNIGHT WILL LIKELY REQUIRE THE ISSUANCE OF ANOTHER ADVISORY BY THIS EVENING. THE PEAK OF THIS SWELL IS EXPECTED WEDNESDAY NIGHT...WITH ANOTHER LARGE...BUT NOT GIANT...SWELL ON TAP FOR THIS WEEKEND. A SMALL CRAFT ADVISORY WILL BE NECESSARY FOR THE WINDS AND SWELLS EXPERIENCED IN MOST MARINE ZONES AFTER THE SHEAR LINE/S PASSAGE. && .HFO WATCHES/WARNINGS/ADVISORIES... NONE. && BIRCHARD
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.