Alert archive / Hawaii / Wind Advisories in 2015

Wind Advisory 29, NWS Honolulu, HI

December 20, 2015Hawaii County, Honolulu County, Kalawao County, Hawaii

NWS Honolulu, HI issued this wind advisory at Dec 20, 2015, 1:54 PM HST for Hawaii County, Honolulu County, Kalawao County, Hawaii. It took effect at Dec 20, 2015, 5:24 PM HST. It was in force for 46 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2015, 1:54 PM HST (23:54 UTC)
In effect from
Dec 20, 2015, 5:24 PM HST
Expired
Dec 22, 2015, 3:34 PM HST
In force
46 hr
Issued by
NWS Honolulu, HI

Counties Hawaii County, HI, Honolulu County, HI, Kalawao County, HI

The radar

The Molokai radar (PHMO), 57 km from the middle of the area, began a volume at 23:55 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, 11.9 hours before the alert went out and 221 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.

Skew-T log-pSkew-T log-p diagram, Hilo, at 12:00Z on 2015-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 288 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Hilo, at 12:00Z on 2015-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
288 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
692 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

109 
WWHW70 PHFO 202354
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
154 PM HST SUN DEC 20 2015

...HIGH WIND WARNING FOR PORTIONS OF OAHU MOLOKAI LANAI MAUI
KAHOOLAWE AND BIG ISLAND THROUGH THIS AFTERNOON...

...WIND ADVISORY FOR THE REMAINDER OF THE STATE THROUGH MONDAY...

HIZ006>008-010-011-013>016-211300-
/O.UPG.PHFO.WI.Y.0028.000000T0000Z-151221T0400Z/
/O.NEW.PHFO.WI.Y.0029.151221T0400Z-151222T0400Z/
/O.EXA.PHFO.HW.W.0018.000000T0000Z-151221T0400Z/
WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-CENTRAL OAHU-
WAIANAE MOUNTAINS-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA-
KAHOOLAWE-
INCLUDING THE CITIES OF...NANAKULI...MAKAHA...HALEIWA...WAIALUA...
KAHUKU...PUNALUU...LAIE...MILILANI...WAHIAWA...PEARL CITY...
MAKAKILO...KAUNAKAKAI...MANELE...LANAI CITY
154 PM HST SUN DEC 20 2015

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM HST THIS EVENING...
...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM HST
MONDAY...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 6 PM HST THIS EVENING. A WIND
ADVISORY HAS ALSO BEEN ISSUED. THIS WIND ADVISORY IS IN EFFECT
FROM 6 PM THIS EVENING TO 6 PM HST MONDAY.

* TIMING...WARNING WINDS THROUGH THIS AFTERNOON...THEN ADVISORY
  SPEED WINDS TONIGHT AND MONDAY.

* WINDS...EAST 25 TO 35 MPH WITH GUSTS TO 60 MPH THIS
  AFTERNOON...WITH GUSTS DECREASING TO 45 MPH TONIGHT AND MONDAY.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...
A HIGH WIND WARNING MEANS THAT WINDS ARE EXPECTED TO BE AT LEAST
40 MPH...WITH GUSTS OVER 60 MPH. STAY AWAY FROM DOWNED POWER
LINES.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED.

&&

$$

HIZ022-026-211300-
/O.EXT.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
HALEAKALA SUMMIT-KOHALA-
INCLUDING THE CITIES OF...
HALEAKALA NATIONAL PARK ABOVE 6000 FEET...WAIKOLOA
154 PM HST SUN DEC 20 2015

...HIGH WIND WARNING NOW IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH 6 PM MONDAY

* WINDS...EAST 25 TO 40 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING FOR THE LOWER ELEVATIONS MEANS THAT WINDS ARE
EXPECTED TO BE AT LEAST 40 MPH...WITH GUSTS OVER 60 MPH. STAY
AWAY FROM DOWNED POWER LINES. TAKE IMMEDIATE ACTION TO PROTECT
PROPERTY.

&&

$$

HIZ001>005-009-012-017>021-023>025-027-028-211300-
/O.EXT.PHFO.WI.Y.0028.000000T0000Z-151222T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS-
OAHU SOUTH SHORE-OLOMANA-MOLOKAI WINDWARD-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-
LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-
BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-
INCLUDING THE CITIES OF...LIHUE...PRINCEVILLE...POIPU...WAIMEA...
HANAPEPE...KOKEE STATE PARK...HONOLULU...WAIKIKI...HAWAII KAI...
KAPOLEI...KAILUA...KANEOHE...WAIMANALO...KALAUPAPA...WAILUKU...
LAHAINA...KAANAPALI...KAHULUI...HAIKU...MAKAWAO...HANA...KIHEI...
MAKENA...PUKALANI...KULA...KAILUA-KONA...MILOLII...SOUTH POINT...
PAHALA...HILO...VOLCANO...HONOKAA...KAMUELA...BRADSHAW FIELD...
SADDLE ROAD ABOVE 5000 FEET...
MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
154 PM HST SUN DEC 20 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH 6 PM MONDAY.

* WINDS...EAST 20 TO 30 MPH WITH GUSTS TO 50 MPH.

* IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... 
  ESPECIALLY FOR HIGH PROFILE VEHICLES...AND CAN OPEN OR CLOSE 
  DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS SHOULD USE
EXTRA CAUTION. OUTDOOR CHRISTMAS DECORATIONS SHOULD BE SECURED...
AS WELL AS LAWN FURNITURE AND TRASH CANS.

&&

$$

FOSTER
6 follow-up statements
402 
WWHW70 PHFO 210109
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
309 PM HST SUN DEC 20 2015

...HIGH WIND WARNING FOR PORTIONS OF OAHU MOLOKAI LANAI KAHOOLAWE
THROUGH LATE THIS AFTERNOON AND FOR HALEAKALA SUMMIT ON MAUI AND
KOHALA ON BIG ISLAND THROUGH LATE MONDAY AFTERNOON...

...WIND ADVISORY FOR THE REMAINDER OF THE STATE THROUGH MONDAY...

HIZ006>008-010-011-013>016-211415-
/O.CON.PHFO.HW.W.0018.000000T0000Z-151221T0400Z/
/O.CON.PHFO.WI.Y.0029.151221T0400Z-151222T0400Z/
WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-CENTRAL OAHU-
WAIANAE MOUNTAINS-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA-
KAHOOLAWE-
INCLUDING THE CITIES OF...NANAKULI...MAKAHA...HALEIWA...WAIALUA...
KAHUKU...PUNALUU...LAIE...MILILANI...WAHIAWA...PEARL CITY...
MAKAKILO...KAUNAKAKAI...MANELE...LANAI CITY
309 PM HST SUN DEC 20 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING...
...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
HST MONDAY...

* TIMING...WARNING WINDS THROUGH THE LATE AFTERNOON...THEN
  ADVISORY SPEED WINDS TONIGHT AND MONDAY.

* WINDS...EAST 25 TO 35 MPH WITH GUSTS TO 60 MPH THROUGH THE LATE
  AFTERNOON...WITH GUSTS DECREASING TO 45 MPH TONIGHT AND MONDAY.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS
THAT WINDS ARE EXPECTED TO BE AT LEAST 40 MPH...WITH GUSTS OVER
60 MPH. STAY AWAY FROM DOWNED POWER LINES.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED.

&&

$$

HIZ022-026-211415-
/O.CON.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
HALEAKALA SUMMIT-KOHALA-
INCLUDING THE CITIES OF...
HALEAKALA NATIONAL PARK ABOVE 6000 FEET...WAIKOLOA
309 PM HST SUN DEC 20 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH 6 PM MONDAY.

* WINDS...EAST 25 TO 35 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING FOR THE LOWER ELEVATIONS MEANS THAT WINDS ARE
EXPECTED TO BE AT LEAST 40 MPH...WITH GUSTS OVER 60 MPH. STAY
AWAY FROM DOWNED POWER LINES. TAKE IMMEDIATE ACTION TO PROTECT
PROPERTY.

&&

$$

HIZ001>005-009-012-017>021-023>025-027-028-211415-
/O.CON.PHFO.WI.Y.0028.000000T0000Z-151222T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS-
OAHU SOUTH SHORE-OLOMANA-MOLOKAI WINDWARD-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-
LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-
BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-
INCLUDING THE CITIES OF...LIHUE...PRINCEVILLE...POIPU...WAIMEA...
HANAPEPE...KOKEE STATE PARK...HONOLULU...WAIKIKI...HAWAII KAI...
KAPOLEI...KAILUA...KANEOHE...WAIMANALO...KALAUPAPA...WAILUKU...
LAHAINA...KAANAPALI...KAHULUI...HAIKU...MAKAWAO...HANA...KIHEI...
MAKENA...PUKALANI...KULA...KAILUA-KONA...MILOLII...SOUTH POINT...
PAHALA...HILO...VOLCANO...HONOKAA...KAMUELA...BRADSHAW FIELD...
SADDLE ROAD ABOVE 5000 FEET...
MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
309 PM HST SUN DEC 20 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH 6 PM MONDAY.

* WINDS...EAST 20 TO 30 MPH WITH GUSTS TO 50 MPH.

* IMPACTS...WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... 
  ESPECIALLY FOR HIGH PROFILE VEHICLES...AND CAN OPEN OR CLOSE 
  DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS SHOULD USE
EXTRA CAUTION. OUTDOOR CHRISTMAS DECORATIONS SHOULD BE SECURED...
AS WELL AS LAWN FURNITURE AND TRASH CANS.

&&

$$

FOSTER
800 
WWHW70 PHFO 210324
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
524 PM HST SUN DEC 20 2015

...HIGH WIND WARNING FOR HALEAKALA SUMMIT ON MAUI AND KOHALA ON
BIG ISLAND THROUGH MONDAY...

...WIND ADVISORY FOR THE REMAINDER OF THE STATE THROUGH MONDAY...

HIZ006>008-010-011-013>016-211630-
/O.CAN.PHFO.HW.W.0018.000000T0000Z-151221T0400Z/
/O.EXT.PHFO.WI.Y.0029.151221T0324Z-151222T0400Z/
WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-CENTRAL OAHU-
WAIANAE MOUNTAINS-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA-
KAHOOLAWE-
INCLUDING THE CITIES OF...NANAKULI...MAKAHA...HALEIWA...WAIALUA...
KAHUKU...PUNALUU...LAIE...MILILANI...WAHIAWA...PEARL CITY...
MAKAKILO...KAUNAKAKAI...MANELE...LANAI CITY
524 PM HST SUN DEC 20 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM HST MONDAY...
...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE HIGH
WIND WARNING. 

* TIMING...THROUGH MONDAY.

* WINDS...EAST 15 TO 30 MPH WITH GUSTS TO 50 MPH. STRONGEST WINDS
  AND GUSTS EXPECTED ON MONDAY.

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN
  OPEN OR CLOSE DOORS WITH GREAT FORCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...ESPECIALLY
THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE WITH CAUTION.

&&

$$

HIZ022-026-211630-
/O.CON.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
HALEAKALA SUMMIT-KOHALA-
INCLUDING THE CITIES OF...
HALEAKALA NATIONAL PARK ABOVE 6000 FEET...WAIKOLOA
524 PM HST SUN DEC 20 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH MONDAY.

* WINDS...FOR HALEAKALA...EAST 40 TO 60 MPH. FOR KOHALA...EAST 20
  TO 30 MPH WITH GUSTS TO 60 MPH. STRONGEST WINDS AND GUSTS
  EXPECTED ON MONDAY.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING FOR THE LOWER ELEVATIONS MEANS THAT WINDS ARE
EXPECTED TO BE AT LEAST 40 MPH...WITH GUSTS OVER 60 MPH. STAY
AWAY FROM DOWNED POWER LINES. TAKE IMMEDIATE ACTION TO PROTECT
PROPERTY.

A HIGH WIND WARNING MEANS THAT WINDS AT THE SUMMITS ARE EXPECTED
TO BE AT LEAST 56 MPH...WITH GUSTS OVER 66 MPH. TAKE NECESSARY
PRECAUTIONS TO PROTECT PROPERTY. TRAVEL TO THE SUMMIT AREAS SHOULD
BE DELAYED UNTIL WINDS SUBSIDE.

&&

$$

HIZ001>005-009-012-017>021-023>025-027-028-211630-
/O.CON.PHFO.WI.Y.0028.000000T0000Z-151222T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS-
OAHU SOUTH SHORE-OLOMANA-MOLOKAI WINDWARD-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-
LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-
BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-
INCLUDING THE CITIES OF...LIHUE...PRINCEVILLE...POIPU...WAIMEA...
HANAPEPE...KOKEE STATE PARK...HONOLULU...WAIKIKI...HAWAII KAI...
KAPOLEI...KAILUA...KANEOHE...WAIMANALO...KALAUPAPA...WAILUKU...
LAHAINA...KAANAPALI...KAHULUI...HAIKU...MAKAWAO...HANA...KIHEI...
MAKENA...PUKALANI...KULA...KAILUA-KONA...MILOLII...SOUTH POINT...
PAHALA...HILO...VOLCANO...HONOKAA...KAMUELA...BRADSHAW FIELD...
SADDLE ROAD ABOVE 5000 FEET...
MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
524 PM HST SUN DEC 20 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST MONDAY...

* TIMING...THROUGH MONDAY.

* WINDS...EAST 15 TO 30 MPH WITH GUSTS TO 50 MPH. STRONGEST WINDS
  AND GUSTS EXPECTED ON MONDAY.

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN
  OPEN OR CLOSE DOORS WITH GREAT FORCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...ESPECIALLY
THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE WITH CAUTION.
WINDS CAN OPEN OR CLOSE DOORS WITH GREAT FORCE.

&&

$$

FOSTER
165 
WWHW70 PHFO 211342
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
342 AM HST MON DEC 21 2015

...HIGH WIND WARNING FOR HALEAKALA SUMMIT ON MAUI AND KOHALA ON
BIG ISLAND THROUGH TODAY...

...WIND ADVISORY FOR THE REMAINDER OF THE STATE THROUGH TODAY...

HIZ022-026-220245-
/O.CON.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
HALEAKALA SUMMIT-KOHALA-
INCLUDING THE CITIES OF...
HALEAKALA NATIONAL PARK ABOVE 6000 FEET...WAIKOLOA
342 AM HST MON DEC 21 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING...

* TIMING...THROUGH TODAY.

* WINDS...FOR HALEAKALA...EAST 40 TO 60 MPH. FOR KOHALA...EAST 20
  TO 30 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...DANGEROUS AND DAMAGING WIND GUSTS. HIGH PROFILE 
  VEHICLES MAY BE DIFFICULT TO CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING FOR THE LOWER ELEVATIONS MEANS THAT WINDS ARE
EXPECTED TO BE AT LEAST 40 MPH...WITH GUSTS OVER 60 MPH. STAY
AWAY FROM DOWNED POWER LINES. TAKE IMMEDIATE ACTION TO PROTECT
PROPERTY.

A HIGH WIND WARNING MEANS THAT WINDS AT THE SUMMITS ARE EXPECTED
TO BE AT LEAST 56 MPH...WITH GUSTS OVER 66 MPH. TAKE NECESSARY
PRECAUTIONS TO PROTECT PROPERTY. TRAVEL TO THE SUMMIT AREAS
SHOULD BE DELAYED UNTIL WINDS SUBSIDE.

&&

$$

HIZ001>005-009-012-017>021-023>025-027-028-220245-
/O.CON.PHFO.WI.Y.0028.000000T0000Z-151222T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS-
OAHU SOUTH SHORE-OLOMANA-MOLOKAI WINDWARD-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-
LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-
BIG ISLAND INTERIOR-BIG ISLAND SUMMITS-
INCLUDING THE CITIES OF...LIHUE...PRINCEVILLE...POIPU...WAIMEA...
HANAPEPE...KOKEE STATE PARK...HONOLULU...WAIKIKI...HAWAII KAI...
KAPOLEI...KAILUA...KANEOHE...WAIMANALO...KALAUPAPA...WAILUKU...
LAHAINA...KAANAPALI...KAHULUI...HAIKU...MAKAWAO...HANA...KIHEI...
MAKENA...PUKALANI...KULA...KAILUA-KONA...MILOLII...SOUTH POINT...
PAHALA...HILO...VOLCANO...HONOKAA...KAMUELA...BRADSHAW FIELD...
SADDLE ROAD ABOVE 5000 FEET...
MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
342 AM HST MON DEC 21 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING...

* TIMING...THROUGH TODAY.

* WINDS...EAST 15 TO 30 MPH WITH GUSTS TO 50 MPH. 

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION. WINDS CAN OPEN OR CLOSE DOORS WITH GREAT FORCE.

&&

$$

HIZ006>008-010-011-013>016-220245-
/O.CON.PHFO.WI.Y.0029.000000T0000Z-151222T0400Z/
WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-CENTRAL OAHU-
WAIANAE MOUNTAINS-MOLOKAI LEEWARD-LANAI MAKAI-LANAI MAUKA-
KAHOOLAWE-
INCLUDING THE CITIES OF...NANAKULI...MAKAHA...HALEIWA...WAIALUA...
KAHUKU...PUNALUU...LAIE...MILILANI...WAHIAWA...PEARL CITY...
MAKAKILO...KAUNAKAKAI...MANELE...LANAI CITY
342 AM HST MON DEC 21 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING...

* TIMING...THROUGH TODAY.

* WINDS...EAST 15 TO 30 MPH WITH GUSTS TO 50 MPH. STRONGEST 
  WINDS AND GUSTS EXPECTED ON MONDAY. 

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION.

&&

$$

MORRISON
519 
WWHW70 PHFO 220141
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
341 PM HST MON DEC 21 2015

...WIND ADVISORY PORTIONS OF MAUI COUNTY AND THE BIG ISLAND THROUGH
TONIGHT...

HIZ026-221445-
/O.CAN.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
/O.EXB.PHFO.WI.Y.0029.000000T0000Z-151222T1600Z/
KOHALA-
INCLUDING THE CITY OF...WAIKOLOA
341 PM HST MON DEC 21 2015

...WIND ADVISORY IN EFFECT UNTIL 6 AM HST TUESDAY FOR THE KOHALA
AREA OF THE BIG ISLAND...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM HST TUESDAY. 

* TIMING...THROUGH TONIGHT.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS TO 50 MPH. 

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION.

&&

$$

HIZ022-220245-
/O.CAN.PHFO.HW.W.0018.000000T0000Z-151222T0400Z/
HALEAKALA SUMMIT-
INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET
341 PM HST MON DEC 21 2015

...HIGH WIND WARNING IS CANCELLED FOR THE HALEAKALA SUMMIT...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE HIGH
WIND WARNING FOR HALEAKALA SUMMIT. 

$$

HIZ001>005-009-012-017>021-023-028-220245-
/O.CAN.PHFO.WI.Y.0028.000000T0000Z-151222T0400Z/
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-KAUAI MOUNTAINS-
OAHU SOUTH SHORE-OLOMANA-MOLOKAI WINDWARD-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-
LEEWARD HALEAKALA-KONA-BIG ISLAND SUMMITS-
INCLUDING THE CITIES OF...LIHUE...PRINCEVILLE...POIPU...WAIMEA...
HANAPEPE...KOKEE STATE PARK...HONOLULU...WAIKIKI...HAWAII KAI...
KAPOLEI...KAILUA...KANEOHE...WAIMANALO...KALAUPAPA...WAILUKU...
LAHAINA...KAANAPALI...KAHULUI...HAIKU...MAKAWAO...HANA...KIHEI...
MAKENA...PUKALANI...KULA...KAILUA-KONA...MILOLII...
MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
341 PM HST MON DEC 21 2015

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND
ADVISORY FOR NIIHAU...KAUAI...OAHU...MOLOKAI...MAUI AND PORTIONS
OF THE BIG ISLAND.

$$

HIZ006>008-010-011-013-220245-
/O.CAN.PHFO.WI.Y.0029.000000T0000Z-151222T0400Z/
WAIANAE COAST-OAHU NORTH SHORE-OAHU KOOLAU-CENTRAL OAHU-
WAIANAE MOUNTAINS-MOLOKAI LEEWARD-
INCLUDING THE CITIES OF...NANAKULI...MAKAHA...HALEIWA...WAIALUA...
KAHUKU...PUNALUU...LAIE...MILILANI...WAHIAWA...PEARL CITY...
MAKAKILO...KAUNAKAKAI
341 PM HST MON DEC 21 2015

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND
ADVISORY FOR OAHU AND MOLOKAI. 

$$

HIZ024-025-027-221445-
/O.EXT.PHFO.WI.Y.0028.000000T0000Z-151222T1600Z/
SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-BIG ISLAND INTERIOR-
INCLUDING THE CITIES OF...SOUTH POINT...PAHALA...HILO...VOLCANO...
HONOKAA...KAMUELA...BRADSHAW FIELD...SADDLE ROAD ABOVE 5000 FEET
341 PM HST MON DEC 21 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM HST TUESDAY FOR PORTIONS
OF THE BIG ISLAND...

* TIMING...THROUGH TONIGHT.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS TO 50 MPH...OVER PASSES AND
  THROUGH GAPS. ESPECIALLY IN THE KOHALA AREA...SOUTH POINT AND IN
  THE SADDLE.

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION. WINDS CAN OPEN OR CLOSE DOORS WITH GREAT FORCE.

&&

$$

HIZ014>016-221445-
/O.EXT.PHFO.WI.Y.0029.000000T0000Z-151222T1600Z/
LANAI MAKAI-LANAI MAUKA-KAHOOLAWE-
INCLUDING THE CITIES OF...MANELE...LANAI CITY
341 PM HST MON DEC 21 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM HST TUESDAY FOR LANAI
AND KAHOOLAWE...

* TIMING...THROUGH TONIGHT.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS TO 50 MPH.

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION.

&&

$$
342 
WWHW70 PHFO 221446
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
446 AM HST TUE DEC 22 2015

...WIND ADVISORY PORTIONS OF MAUI COUNTY AND THE BIG ISLAND
THROUGH EARLY THIS EVENING...

HIZ014>016-026-230400-
/O.EXT.PHFO.WI.Y.0029.000000T0000Z-151223T0400Z/
LANAI MAKAI-LANAI MAUKA-KAHOOLAWE-KOHALA-
INCLUDING THE CITIES OF...MANELE...LANAI CITY...WAIKOLOA
446 AM HST TUE DEC 22 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING...

* TIMING...THROUGH EARLY THIS EVENING.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS TO 50 MPH.

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION.

&&

$$

HIZ024-025-027-230400-
/O.EXT.PHFO.WI.Y.0028.000000T0000Z-151223T0400Z/
SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-BIG ISLAND INTERIOR-
INCLUDING THE CITIES OF...SOUTH POINT...PAHALA...HILO...VOLCANO...
HONOKAA...KAMUELA...BRADSHAW FIELD...SADDLE ROAD ABOVE 5000 FEET
446 AM HST TUE DEC 22 2015

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING...

* TIMING...THROUGH EARLY THIS EVENING.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS TO 50 MPH...OVER PASSES 
  AND THROUGH GAPS. ESPECIALLY IN THE KOHALA AREA...SOUTH POINT 
  AND IN THE SADDLE. 

* IMPACTS...DIFFICULTY DRIVING LARGE PROFILE VEHICLES. WINDS CAN 
  OPEN OR CLOSE DOORS WITH GREAT FORCE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. MOTORISTS...
ESPECIALLY THOSE IN HIGH PROFILE VEHICLES...ARE URGED TO DRIVE
WITH CAUTION. WINDS CAN OPEN OR CLOSE DOORS WITH GREAT FORCE.

&&

$$
039 
WWHW70 PHFO 230134
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
334 PM HST TUE DEC 22 2015

HIZ014>016-026-230245-
/O.CAN.PHFO.WI.Y.0029.000000T0000Z-151223T0400Z/
LANAI MAKAI-LANAI MAUKA-KAHOOLAWE-KOHALA-
INCLUDING THE CITIES OF...MANELE...LANAI CITY...WAIKOLOA
334 PM HST TUE DEC 22 2015

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND
ADVISORY. 

TRADE WINDS WILL GUST UP TO 40 MPH EARLY THIS EVENING...THE
DIMINISH FURTHER BY WEDNESDAY.

$$

HIZ024-025-027-230245-
/O.CAN.PHFO.WI.Y.0028.000000T0000Z-151223T0400Z/
SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST-BIG ISLAND INTERIOR-
INCLUDING THE CITIES OF...SOUTH POINT...PAHALA...HILO...VOLCANO...
HONOKAA...KAMUELA...BRADSHAW FIELD...SADDLE ROAD ABOVE 5000 FEET
334 PM HST TUE DEC 22 2015

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND
ADVISORY. 

TRADE WINDS WILL GUST UP TO 40 MPH EARLY THIS EVENING...THE
DIMINISH FURTHER BY WEDNESDAY.

$$

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 Dec 20, 10:08 AM HST, 3 hours 46 minutes earlier.

Area forecast discussion, Dec 20, 10:08 AM HST, 3 hours 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
1008 AM HST SUN DEC 20 2015

.SYNOPSIS...
HIGH PRESSURE NORTH-NORTHEAST OF THE ISLANDS WILL SUPPORT TRADE
WINDS OVER THE ISLANDS FOR MOST OF THE NEXT WEEK. WINDS WILL BE
ESPECIALLY STRONG AND GUSTY THROUGH MONDAY. AN UPPER-LEVEL
DISTURBANCE COMBINED WITH MOISTURE ASSOCIATED WITH AN OLD FRONT
WILL CAUSE THE TRADE WIND FLOW TO BE ESPECIALLY WET OVER WINDWARD
MAUI AND BIG ISLAND THROUGH MONDAY AND POSSIBLY TUESDAY. WEAKER
TRADE WINDS AND FEWER SHOWERS ARE EXPECTED FOR THE SECOND HALF OF
THE WEEK.

&&

.DISCUSSION...
A NEARLY STATIONARY STRONG SURFACE HIGH CENTERED ABOUT 900 MILES TO
THE NNE CONTINUES TO DRIVE STRONG TRADE WINDS ACROSS HAWAII. A
WIND ADVISORY REMAINS IN EFFECT STATEWIDE...DUE TO WIND GUSTS NEAR
50 MPH. EXCEPTIONS TO THE ADVISORY ARE THE LEEWARD KOHALA DISTRICT
ON THE BIG ISLAND...AND THE SUMMIT OF HALEAKALA ON MAUI...WHERE A
HIGH WIND WARNING IS IN EFFECT. FOR KOHALA...THE PRESSURE DIFFERENCE
BETWEEN PHTO AND PHKO CONTINUES TO RANGE BETWEEN 4 AND 5 MB...WHICH
HAS HISTORICALLY LED TO DAMAGING WIND GUSTS NEAR 60 MPH. FOR
HALEAKALA...THE WARNING IS IN EFFECT IN ANTICIPATION THAT WINDS
WILL INCREASE LATER TODAY AND PEAK TONIGHT BEFORE TRENDING DOWN ON
MONDAY...WITH PEAK GUSTS EXPECTED TO APPROACH 80 MPH.

A SHARP E TO W ORIENTED TROUGH ALOFT LIES JUST S OF THE ISLAND
CHAIN THIS MORNING MOVING SLOWLY S. LATEST WATER VAPOR IMAGES AND
SURFACE OBSERVATIONS INDICATE THE TROUGH AXIS IS CURRENTLY JUST SE
OF THE BIG ISLAND. AS THE TROUGH SLIDES S AND CUTS OFF INTO A
CLOSED LOW LATER TODAY...THE GRADIENT BETWEEN THE LOW AND A HIGH
ALOFT IS EXPECTED TO LEAD TO EVEN STRONGER WINDS IN THE MID-LEVELS
OF THE ISLAND ATMOSPHERE...HENCE THE WIND WARNING FOR HALEAKALA.
THESE DAMAGING WINDS MAY ALSO SPREAD TO THE BIG ISLAND SUMMITS...BUT
LATEST GFS GUIDANCE KEEPS THE STRONGEST WINDS N OF THE BIG ISLAND
AND WILL THEREFORE KEEP THE WIND ADVISORY IN PLACE FOR NOW. WITH
VERTICALLY DEEP TRADES BECOMING STRONGER ABOVE THE SURFACE LATER
TODAY AND TONIGHT...AN EXTENSION OF THE STATEWIDE WIND ADVISORY
MAY BE NECESSARY DUE TO THE CONTINUED POSSIBILITY FOR STRONG WIND
GUSTS.

THE DEVELOPING LOW ALOFT S OF THE BIG ISLAND WILL LIKELY KEEP
TRADE SHOWERS ACTIVE OVER WINDWARD MAUI AND BIG ISLAND THROUGH
MONDAY AND POSSIBLY INTO TUESDAY AS THE LOW MOVES BACK TO THE NNE.
WHILE SKIES HAVE TEMPORARILY CLEARED ACROSS THE BIG ISLAND SUMMITS
THIS MORNING...ANTICIPATING THE SHOWERS TO FILL BACK IN LATER
TODAY INTO MONDAY AS THE LOW ALOFT INTERACTS WITH A BAND OF
MOISTURE JUST S OF THE BIG ISLAND THAT BROUGHT US THE RAIN LAST
NIGHT. THUS...HAVE EXTENDED THE WINTER WEATHER ADVISORY FOR THE
BIG ISLAND SUMMITS ABOVE 12000 FEET THROUGH THE DAY MONDAY.

FOR THE ISLANDS OF KAUAI OAHU AND MOLOKAI...THE APPROACHING
CLOUDS APPEAR RELATIVELY STABLE...BUT OROGRAPHIC FORCING SHOULD
CONTINUE TO SQUEEZE SOME SHOWERS FROM THESE CLOUDS AND EASILY
SPREAD THEM LEEWARD. POPS WILL REMAIN RELATIVELY HIGH EVEN AS A
SLIGHTLY COOLER AND DRIER AIR MASS PREVAILS IN THE WAKE OF THE
REMNANT FRONTAL BAND. THIS MODEST DRYING IS FORECAST TO BE SHORT-
LIVED HOWEVER...WITH THIS INCREASED MOISTURE FORECAST TO SPREAD
BACK UP TOWARD THE SMALLER ISLANDS EARLY MONDAY THROUGH TUESDAY AS
THE DISTURBANCE ALOFT SHIFTS BACK TOWARDS THE NNE.

THE TROUGH ALOFT WILL WEAKEN AND LIFT NE AS THE WEEK PROGRESSES...
WITH THE SURFACE HIGH TO THE NE DOING THE SAME. THIS IS EXPECTED TO
LEAD TO A WEAKER TRADE WIND REGIME FOR THE SECOND HALF OF THE
UPCOMING WEEK...WITH FEWER SHOWERS. FOR CHRISTMAS DAY...A FAIRLY
TYPICAL TRADE WIND WEATHER PATTERN IS EXPECTED.

ALTHOUGH TOO EARLY FOR MUCH CONFIDENCE...LATEST OPERATIONAL GFS
FORECAST DEPICTS A SHARP TROUGH ALOFT DRIVING THE DEVELOPMENT OF A
SURFACE TROUGH NEAR THE ISLANDS FOR NEXT WEEKEND. AS NOTED IN THE
HAWAIIAN ISLAND MEDIUM RANGE DISCUSSION /PMDHI/ ISSUED BY THE NWS
WEATHER PREDICTION CENTER...THE OPERATIONAL GFS IS A BIT OF AN
OUTLIER. ALSO THE TYPE OF EVOLUTION BEING DEPICTED ALOFT BY NEXT
WEEKEND TENDS TO HAVE LOW PREDICTABILITY AT EXTENDED TIME FRAMES SO
CONFIDENCE IN THE UPPER LEVEL FORECAST IS LOW. CURRENT FORECAST
GRIDS BROAD BRUSH A TYPICAL TRADE WIND WEATHER PATTERN.

&&

.AVIATION...
THE STRONG AND GUSTY TRADE WINDS WILL CONTINUE TODAY. AIRMET TANGO
FOR STRONG SURFACE WINDS OVER MOUNTAIN RIDGES...THROUGH
VALLEYS...AND CHANNELS WILL REMAIN POSTED. AIRMET TANGO FOR LOW
LEVEL TURBULENCE SOUTH AND WEST OF THE MOUNTAINS HAS BEEN UPDATED TO
MENTION MODERATE TO SEVERE LOW LEVEL TURBULENCE...BASED OFF PIREP
REPORTS FROM SOUTH OF PHNL THIS MORNING BETWEEN FL008 AND FL020.
OTHERWISE...MOST PIREPS INDICATE MAINLY MODERATE TURB BELOW FL100.

AIRMET SIERRA HAS BEEN RE-ISSUED FOR MOUNTAIN OBSC ALONG THE NORTH
THROUGH EAST SECTIONS FOR MAUI...MOLOKAI...AND OAHU. THE STRONG
TRADES WILL CARRY CLOUDS AND SHOWERS...AT TIMES HEAVY...ACROSS
MAINLY WINDWARD AREA. SOME SHOWERS WILL PASS TO LEEWARD AREAS.
AIRMET SIERRA WILL BE ADJUSTED AS NEEDED THROUGHOUT THE DAY.

&&

.MARINE...
A STATEWIDE SMALL CRAFT ADVISORY /SCA/...WITH GALE WARNINGS IN THE
WINDIER AREAS...REMAINS IN EFFECT DUE TO THE ONGOING STRONG TRADE
WIND EVENT. THE STRONG SURFACE HIGH RESPONSIBLE FOR THESE CONDITIONS
WILL REMAIN NEARLY STATIONARY NNE OF THE ISLANDS WHILE GRADUALLY
WEAKENING AFTER MONDAY. THEREFORE THE EXPECTATION IS THAT COMBINED
SEAS WILL REMAIN HIGH...RUNNING ABOUT 12 TO 15 FEET IN EXPOSED
WINDWARD AREAS...AND EVEN HIGHER IN THE CHANNELS...INTO MONDAY. AS
THE HIGH WEAKENS FURTHER AND LIFTS N AROUND THE MIDDLE OF THE
WEEK...WINDS AND SEAS WILL DROP BELOW SCA LEVELS IN MOST AREAS
EXCEPT FOR THE WINDIER AREAS AROUND MAUI AND THE BIG ISLAND.

THE ROUGH SEAS DRIVEN TOWARD THE ISLANDS BY THE PERSISTENT HIGH WILL
MAINTAIN HIGH SURF ALONG E FACING SHORES OF THE ISLANDS...LIKELY
THROUGH TUESDAY. OVERNIGHT BUOY OBSERVATIONS FROM WINDWARD WATERS
INDICATED SEAS LARGER THAN ANTICIPATED...SPIKING NEAR 16 FEET AT
PAUWELA AND MOKAPU...PROMPTING THE ISSUANCE OF A HIGH SURF WARNING
FOR E FACING SHORES THROUGH TONIGHT. OTHER SURF SOURCES THIS WEEK
INCLUDE SMALL NW SWELLS AROUND TUESDAY AND THURSDAY...WITH PEAK SURF
HEIGHTS EXPECTED TO REMAIN BELOW ADVISORY LEVELS ALONG N AND W
FACING SHORES.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WARNING UNTIL 6 PM HST THIS EVENING FOR KOHALA.

HIGH WIND WARNING UNTIL NOON HST MONDAY FOR HALEAKALA SUMMIT.

WIND ADVISORY UNTIL 6 PM HST THIS EVENING FOR THE REST OF HAWAII.

HIGH SURF WARNING UNTIL 6 AM HST MONDAY FOR EAST FACING SHORES OF
NIIHAU KAUAI OAHU MOLOKAI MAUI AND THE BIG ISLAND.

WINTER WEATHER ADVISORY UNTIL 6 PM HST MONDAY FOR BIG ISLAND
SUMMITS.

GALE WARNING UNTIL 6 PM HST THIS EVENING FOR KAIWI CHANNEL-
PAILOLO CHANNEL-BIG ISLAND LEEWARD WATERS-BIG ISLAND SOUTHEAST
WATERS.

GALE WARNING UNTIL 6 PM HST MONDAY FOR ALENUIHAHA CHANNEL.

SMALL CRAFT ADVISORY UNTIL 6 PM HST MONDAY FOR ALL REMAINING
HAWAIIAN COASTAL WATERS NOT IN THE GALE WARNING.

&&

DISCUSSION/MARINE...FOSTER
AVIATION...EATON

In the hours before

Local storm report, Dec 20, 1:35 PM HST, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
135 PM HST SUN DEC 20 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0128 PM     NON-TSTM WND DMG MILILANI TOWN           21.45N 158.02W
12/20/2015                   HONOLULU           HI   LAW ENFORCEMENT

            POLICE REPORT THAT TREES HAVE BEEN BLOWN DOWN BY STRONG
            WINDS IN SEVERAL AREAS OF MILILANI.

&&

HFO

The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 7:21 PM HSTAreal Flood AdvisoryHFOKalawao9 hr
Dec 19, 9:11 PM HSTWinter Weather AdvisoryHFOHawaii56 hr
Dec 20, 12:39 AM HSTHigh Wind WarningHFOHawaii, Honolulu, Kalawao39 hr
Dec 20, 1:06 AM HSTAreal Flood AdvisoryHFOHawaii3 hr
Dec 20, 2:53 AM HSTHigh Surf WarningHFOHonolulu, Kauai, Kalawao37 hr
Dec 20, 3:57 AM HSTAreal Flood AdvisoryHFOHawaii3 hr

Nearby

Wind Advisories in Hawaii, 2015Every wind 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.