Alert archive / Hawaii / Winter Storm Warnings in 2024

Winter Storm Warning 3, NWS Honolulu, HI

May 9, 2024Hawaii County, Hawaii

NWS Honolulu, HI issued this winter storm warning at May 9, 2024, 3:51 PM HST for Hawaii County, Hawaii. It took effect at May 10, 2024, 12:00 PM HST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 9, 2024, 3:51 PM HST (01:51 UTC)
In effect from
May 10, 2024, 12:00 PM HST
Expired
May 11, 2024, 2:57 AM HST
In force
15 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 01:55 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, 1.9 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.

Skew-T log-pSkew-T log-p diagram, Hilo, at 00:00Z on 2024-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 109 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Hilo, at 00:00Z on 2024-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
109 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
889 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 3:46 PM HSTHigh Wind WarningHFOHawaii35 hr
May 9, 3:48 PM HSTAreal Flood AdvisoryHFOHonolulu44 min
May 9, 4:28 PM HSTAreal Flood AdvisoryHFOKalawao54 min
May 9, 5:22 PM HSTFlash Flood WarningHFOKalawao91 min
May 10, 2:12 AM HSTAreal Flood AdvisoryHFOHonolulu2 hr
May 10, 2:20 AM HSTSpecial Marine WarningHFO115 min
May 10, 4:10 AM HSTSpecial Marine WarningHFO2 hr
May 10, 4:51 AM HSTSpecial Marine WarningHFO114 min
May 10, 5:02 AM HSTSpecial Marine WarningHFO118 min
May 10, 6:50 AM HSTSpecial Marine WarningHFO38 min
May 10, 12:38 PM HSTAreal Flood AdvisoryHFOHonolulu117 min
May 10, 12:57 PM HSTAreal Flood AdvisoryHFOKauai114 min
May 10, 1:13 PM HSTSpecial Marine WarningHFO2 hr

Nearby

Winter Storm Warnings in Hawaii, 2024Every winter storm warning in 2024

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.