Alert archive / Hawaii / Wind Advisories in 2011

Wind Advisory 22, NWS Honolulu, HI

July 28, 2011Kalawao County, Hawaii

NWS Honolulu, HI issued this wind advisory at Jul 28, 2011, 4:49 AM HST for Kalawao County, Hawaii. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jul 28, 2011, 4:49 AM HST (14:49 UTC)
Expired: Jul 28, 2011, 12:34 PM HST
In force: 8 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 14:48 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, 2.8 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: 180 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 642 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -73 m²/s²
0-3 km storm-relative helicity: -129 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.

254 
WWHW70 PHFO 281449
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
449 AM HST THU JUL 28 2011

...WIND ADVISORY FOR HALEAKALA SUMMIT...

.STRONG NORTHEASTERLY WINDS WILL AFFECT THE SUMMIT OF MOUNT
HALEAKALA.

HIZ022-282300-
/O.NEW.PHFO.WI.Y.0022.110728T1449Z-110729T0000Z/
HALEAKALA SUMMIT-
INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET
449 AM HST THU JUL 28 2011

...WIND ADVISORY IN EFFECT UNTIL 2 PM HST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 2 PM HST THIS AFTERNOON. 

* WINDS...NORTHEAST 25 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...THESE STRONG WINDS WILL CONTINUE THROUGH EARLY THIS AFTERNOON.

* IMPACTS...STRONG AND GUSTY WINDS CAN MAKE DRIVING DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. THEREFORE...USE EXTRA CAUTION WHILE DRIVING.

&&

$$

HOUSTON/DEJESUS

1 follow-up statement

907 
WWHW70 PHFO 282234
NPWHFO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
1234 PM HST THU JUL 28 2011

HIZ022-282345-
/O.CAN.PHFO.WI.Y.0022.000000T0000Z-110729T0000Z/
HALEAKALA SUMMIT-
INCLUDING THE CITY OF...HALEAKALA NATIONAL PARK ABOVE 6000 FEET
1234 PM HST THU JUL 28 2011

...WIND ADVISORY IS CANCELLED...

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

WINDS HAVE DECREASED OVER HALEAKALA...PROMPTING THE CANCELLATION
OF THE WIND ADVISORY. NORTHEAST WINDS 15 TO 20 MPH ARE EXPECTED
THROUGH THE REMAINDER OF THE AFTERNOON. 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 3:26 AM HST	Small Craft Advisory	HFO		17 hr

Nearby

Wind Advisories in Hawaii, 2011 Every wind advisory in 2011

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.