Alert archive / Hawaii / Wind Advisories in 2011
Wind Advisory 28, NWS Honolulu, HI
NWS Honolulu, HI issued this wind advisory at Dec 21, 2011, 3:31 AM HST for Kalawao County, Hawaii. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 21, 2011, 3:31 AM HST (13:31 UTC)
- Expired
- Dec 22, 2011, 3:26 AM HST
- In force
- 24 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 13:32 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, 1.5 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.
- Mixed-layer CAPE
- 252 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
663 WWHW70 PHFO 211331 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 331 AM HST WED DEC 21 2011 ...WIND ADVISORY FOR THE SUMMIT OF MOUNT HALEAKALA... .THE TIGHTENING PRESSURE GRADIENT WILL CAUSE WINDY CONDITIONS ON THE HIGHEST ELEVATIONS OF MOUNT HALEAKALA ON MAUI. THESE WINDY CONDITIONS MAY PERSIST THROUGH THIS EVENING...SO THIS WIND ADVISORY MAY NEED TO BE EXTENDED. HIZ022-220145- /O.NEW.PHFO.WI.Y.0028.111221T1331Z-111222T0400Z/ HALEAKALA SUMMIT- INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET 331 AM HST WED DEC 21 2011 ...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...EAST 30 TO 35 MPH WITH GUSTS UP TO 50 MPH. * TIMING...THROUGH THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY INDICATES STRONG WINDS ARE OCCURRING...WHICH CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION WHILE DRIVING. && $$ HOUSTON
2 follow-up statements
323 WWHW70 PHFO 220130 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 330 PM HST WED DEC 21 2011 ...WIND ADVISORY FOR HALEAKALA SUMMIT THROUGH 6 PM THURSDAY... .DEEP TRADE WIND FLOW WILL PRODUCE ELEVATED WINDS ACROSS THE SUMMIT OF MOUNT HALEAKALA. HIZ022-221330- /O.EXT.PHFO.WI.Y.0028.000000T0000Z-111223T0400Z/ HALEAKALA SUMMIT- INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET 330 PM HST WED DEC 21 2011 ...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM HST THURSDAY... THE WIND ADVISORY IS NOW IN EFFECT UNTIL 6 PM HST THURSDAY. * WINDS...EAST 25 TO 35 MPH GUSTING TO 50 MPH. * TIMING...THROUGH THURSDAY AFTERNOON. WINDS MAY REMAIN ELEVATED BEYOND TOMORROW AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY INDICATES STRONG WINDS ARE OCCURRING...WHICH CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION WHILE DRIVING. && $$ DEJESUS
521 WWHW70 PHFO 221326 NPWHFO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HONOLULU HI 326 AM HST THU DEC 22 2011 HIZ022-221430- /O.CAN.PHFO.WI.Y.0028.000000T0000Z-111223T0400Z/ HALEAKALA SUMMIT- INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET 326 AM HST THU DEC 22 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CANCELLED THE WIND ADVISORY. SUSTAINED WIND SPEEDS HAVE DROPPED BELOW THE WIND ADVISORY CRITERIA OF 30 MPH. THEREFORE...THE WIND ADVISORY IS CANCELLED. $$ HOUSTON
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 3:28 AM HST | Gale Warning | HFO | 24 hr |
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.