Alert archive / Hawaii / Wind Advisories in 2018
Wind Advisory 21, NWS Honolulu, HI
NWS Honolulu, HI issued this wind advisory at Apr 3, 2018, 3:37 AM HST for Hawaii County, Hawaii. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2018, 3:37 AM HST (13:37 UTC)
- Expired
- Apr 3, 2018, 3:34 PM HST
- In force
- 12 hr
- Issued by
- NWS Honolulu, HI
County Hawaii County, HI
The radar
The South Shore radar (PHWA), 57 km from the middle of the area, began a volume at 13:39 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, 1.6 hours before the alert went out and 56 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
- 1148 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
795 WWHW70 PHFO 031337 NPWHFO URGENT - WEATHER MESSAGE National Weather Service Honolulu HI 337 AM HST Tue Apr 3 2018 HIZ028-040400- /O.CAN.PHFO.HW.W.0011.000000T0000Z-180403T1600Z/ /O.NEW.PHFO.WI.Y.0021.180403T1337Z-180404T0400Z/ Big Island Summits- 337 AM HST Tue Apr 3 2018 ...WIND ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Honolulu has issued a Wind Advisory, which is in effect until 6 PM HST this evening. The High Wind Warning has been cancelled. * WINDS...West 40 to 55 mph with localized gusts up to 65 mph for the Big Island summits of Mauna Kea and Mauna Loa. * TIMING...Through 6 PM this evening. * IMPACTS...Strong and gusty winds will produce difficult driving conditions especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory for the summits means that sustained winds of at least 45 mph, or gusts of at least 55 mph, are expected. Motorists should use extra caution. && $$
1 follow-up statement
400 WWHW70 PHFO 040134 NPWHFO URGENT - WEATHER MESSAGE National Weather Service Honolulu HI 334 PM HST Tue Apr 3 2018 ...WIND ADVISORY FOR THE BIG ISLAND SUMMITS IS CANCELLED... HIZ028-040245- /O.CAN.PHFO.WI.Y.0021.000000T0000Z-180404T0400Z/ Big Island Summits- 334 PM HST Tue Apr 3 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Honolulu has cancelled the Wind Advisory. Elevated westerly winds have decreased below the advisory threshold across the high summits of the Big Island. $$ Wroe
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 4:53 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 2, 6:15 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 2, 6:41 PM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Apr 2, 6:43 PM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Apr 2, 6:59 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 3, 10:02 AM HST | Flash Flood Watch | HFO | Honolulu, Kauai | 20 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.