Alert archive / Hawaii / High Wind Watches in 2021
High Wind Watch 2, NWS Honolulu, HI
NWS Honolulu, HI issued this high wind watch at Dec 2, 2021, 3:34 AM HST for Hawaii County, Hawaii. It took effect at Dec 3, 2021, 6:00 PM HST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 2, 2021, 3:34 AM HST (13:34 UTC)
- In effect from
- Dec 3, 2021, 6:00 PM HST
- Expired
- Dec 2, 2021, 3:26 PM HST
- In force
- 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 13:34 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
- 188 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1000 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
483 WWHW70 PHFO 021334 NPWHFO URGENT - WEATHER MESSAGE National Weather Service Honolulu HI 334 AM HST Thu Dec 2 2021 ...HIGH WIND WATCH FOR THE BIG ISLAND SUMMITS... HIZ028-030245- /O.NEW.PHFO.HW.A.0002.211204T0400Z-211206T1600Z/ Big Island Summits- Including the city of Mauna Loa and Mauna Kea Above 8000 feet 334 AM HST Thu Dec 2 2021 ...HIGH WIND WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE SUNDAY NIGHT... * WHAT...Southwest winds 50 to 80 mph with localized gusts over 100 mph possible. * WHERE...Big Island Summits. * WHEN...From Friday evening through late Sunday night. * IMPACTS...Travel could be difficult, especially for high profile vehicles. Serious injury could result from slamming doors and flying objects. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take precautions now to protect property. Tie down loose objects or move them to a sheltered location. && $$
1 follow-up statement
036 WWHW70 PHFO 030126 NPWHFO URGENT - WEATHER MESSAGE National Weather Service Honolulu HI 326 PM HST Thu Dec 2 2021 ...HIGH WIND WARNING FOR THE BIG ISLAND SUMMITS... HIZ028-031430- /O.UPG.PHFO.HW.A.0002.211204T0400Z-211206T1600Z/ /O.NEW.PHFO.HW.W.0003.211204T0400Z-211206T1600Z/ Big Island Summits- Including the city of Mauna Loa and Mauna Kea Above 8000 feet 326 PM HST Thu Dec 2 2021 ...HIGH WIND WARNING IN EFFECT FROM 6 PM FRIDAY TO 6 AM HST MONDAY... * WHAT...Southwest winds 50 to 80 mph with localized gusts over 100 mph expected. * WHERE...Big Island Summits. * WHEN...From 6 PM Friday to 6 AM HST Monday. * IMPACTS...Winds this strong will make driving and walking extremely dangerous. The winds can cause significant damage or injuries. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared for road-closures. Postpone travel to the summits until conditions improve. && $$ HIZ001-003-004-029>031-031430- /O.NEW.PHFO.WI.Y.0020.211203T1600Z-211204T0400Z/ Niihau-Kauai Southwest-Kauai Mountains-Kauai North-Kauai East- Kauai South- Including the cities of Waimea, Waimea Canyon State Park, Hanapepe, Kekaha, Barking Sands, Kokee State Park, Princeville, Hanalei, Na Pali State Park, Lihue, Kapaa, Anahola, Poipu, Kalaheo, and Koloa 326 PM HST Thu Dec 2 2021 ...WIND ADVISORY IN EFFECT FROM 6 AM TO 6 PM HST FRIDAY... * WHAT...North winds 30 to 35 mph with localized gusts over 55 mph expected. * WHERE...Portions of Kauai and Niihau Hawaii. * WHEN...From 6 AM to 6 PM HST Friday. * IMPACTS...Winds this strong can tear off shingles, knock down tree branches, blow away tents and awnings and make it difficult to steer, especially for drivers of high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Watch out for falling tree branches when walking or driving. Make sure tents and awnings are secure or take them down. Be prepared for power outages. && $$ HIZ022-031430- /O.NEW.PHFO.WI.Y.0020.211204T0400Z-211206T1600Z/ Haleakala Summit- Including the city of Haleakala National Park Above 6000 feet 326 PM HST Thu Dec 2 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM FRIDAY TO 6 AM HST MONDAY... * WHAT...Southwest winds 35 to 55 mph with localized gusts over 65 mph expected. * WHERE...Haleakala Summit. * WHEN...From 6 PM Friday to 6 AM HST Monday. * IMPACTS...Winds this strong can make driving and walking difficult. The winds can forcefully open doors and damage hinges or slam doors shut, possibly causing injuries. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider postponing travel to the summits until conditions improve. If you must travel to the summits, use extra caution walking and driving. Be careful opening or closing doors. && $$ BURKE
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 3:28 PM HST | Gale Watch | HFO | 24 hr | |
| Dec 1, 5:13 PM HST | Areal Flood Advisory | HFO | Kalawao | 2 hr |
| Dec 2, 3:35 AM HST | Winter Storm Watch | HFO | Hawaii | 12 hr |
Nearby
High Wind Watches in Hawaii, 2021Every high wind watch in 2021
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.