Alert archive / Hawaii / Wind Advisories in 2012

Wind Advisory 47, NWS Honolulu, HI

December 24, 2012Kalawao County, Hawaii

NWS Honolulu, HI issued this wind advisory at Dec 24, 2012, 5:02 AM HST for Kalawao County, Hawaii. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Dec 24, 2012, 5:02 AM HST (15:02 UTC)
Expired: Dec 24, 2012, 3:29 PM HST
In force: 10 hr
Issued by: NWS Honolulu, HI

County Kalawao County, HI

The radar

The Molokai radar (PHMO), 24 km from the middle of the area, began a volume at 15:05 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, 3.0 hours before the alert went out and 261 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1144 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: -83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

653 
WWHW70 PHFO 241502
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
502 AM HST MON DEC 24 2012

...WINDS OVER HALEAKALA PROMPT CAUTION...

.INCREASING SOUTHEASTERLY WINDS HAVE BEGUN AFFECTING UPPER
ELEVATIONS OF HALEAKALA ON THE ISLAND OF MAUI.

HIZ022-250400-
/O.NEW.PHFO.WI.Y.0047.121224T1502Z-121225T0400Z/
HALEAKALA SUMMIT-
INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET
502 AM HST MON DEC 24 2012

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

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM HST THIS EVENING. 

* WINDS...SOUTHEAST 25 TO 35 MPH WITH LOCALIZED GUSTS OVER 45 MPH
  ARE AFFECTING UPPER ELEVATIONS OF HALEAKALA. BRIEFLY GUSTY
  DOWNSLOPE WINDS ALSO MAY BE POSSIBLE AT LOWER ELEVATIONS...
  ESPECIALLY ALONG NORTHWEST SLOPES OF HALEAKALA.

* TIMING...THE WINDS PROBABLY WILL REMAIN STRONG AT LEAST INTO
  THIS AFTERNOON.

* 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 SUSTAINED WINDS OF AT LEAST 30 MPH...
OR GUSTS OF AT LEAST 50 MPH...ARE EXPECTED. PLEASE DRIVE
CAREFULLY.

&&

$$

1 follow-up statement

060 
WWHW70 PHFO 250129
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
329 PM HST MON DEC 24 2012

...WIND ADVISORY FOR HALEAKALA SUMMIT HAS BEEN CANCELLED...

HIZ022-250230-
/O.CAN.PHFO.WI.Y.0047.000000T0000Z-121225T0400Z/
HALEAKALA SUMMIT-
INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET
329 PM HST MON DEC 24 2012

...WIND ADVISORY IS CANCELLED...

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

WIND SPEEDS OVER THE HALEAKALA SUMMIT HAVE DECREASED AND ARE
EXPECTED TO REMAIN BELOW ADVISORY CRITERIA.

$$

REYNES

Nearby

Wind Advisories in Hawaii, 2012 Every wind advisory in 2012

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.