Alert archive / Hawaii / High Surf Advisories in 2020
High Surf Advisory 3, NWS Honolulu, HI
NWS Honolulu, HI issued this high surf advisory at Jan 11, 2020, 3:29 PM HST for Honolulu County, Kalawao County, Hawaii. It was in force for 5 days.
The area
The counties it named.
The facts
- Issued
- Jan 11, 2020, 3:29 PM HST (01:29 UTC)
- Expired
- Jan 16, 2020, 3:37 PM HST
- In force
- 5 days
- Issued by
- NWS Honolulu, HI
Counties Honolulu County, HI, Kalawao County, HI
The radar
The Molokai radar (PHMO), 36 km from the middle of the area, began a volume at 01:31 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 00:00Z, 1.5 hours before the alert went out and 312 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
- 620 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 786 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
What forecasters said that day
The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Honolulu, HI wrote its last area forecast discussion before this high surf advisory went out at Jan 11, 10:17 AM HST, 5 hours 12 minutes earlier.
Area forecast discussion, Jan 11, 10:17 AM HST, 5 hours 12 minutes before
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</html>The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 2:52 PM HST | Winter Storm Warning | HFO | Hawaii | 37 hr |
| Jan 11, 6:30 PM HST | Areal Flood Advisory | HFO | Honolulu | 3 hr |
| Jan 11, 7:35 PM HST | Flash Flood Warning | HFO | Hawaii | 21 hr |
| Jan 12, 1:04 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 12, 3:18 AM HST | Gale Warning | HFO | 54 hr | |
| Jan 12, 3:45 AM HST | Flash Flood Warning | HFO | Kalawao | 5 hr |
Nearby
High Surf Advisories in Hawaii, 2020Every high surf advisory in 2020
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.