Alert archive / California / Flood Watches in 2024
Flood Watch 10, NWS Eureka, CA
NWS Eureka, CA issued this flood watch at Dec 27, 2024, 2:00 PM PST for Del Norte County, Humboldt County, California. It took effect at Dec 28, 2024, 3:00 PM PST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 27, 2024, 2:00 PM PST (22:00 UTC)
- In effect from
- Dec 28, 2024, 3:00 PM PST
- Expired
- Dec 29, 2024, 3:15 PM PST
- In force
- 24 hr
- Issued by
- NWS Eureka, CA
- Flood severity
- None
Counties Del Norte County, CA, Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 86 km from the middle of the area, began a volume at 22:01 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
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.0 hours before the alert went out and 158 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
- 657 m above ground
- 0-6 km bulk shear
- 108 kt
- 0-1 km storm-relative helicity
- 480 m²/s²
- 0-3 km storm-relative helicity
- 603 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this flood watch went out at Dec 27, 4:59 AM PST, 9 hours 1 minute earlier.
Area forecast discussion, Dec 27, 4:59 AM PST, 9 hours 1 minute before
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</html>The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 2:49 AM PST | Small Craft Advisory | EKA | 45 hr | |
| Dec 27, 2:49 AM PST | Hazardous Seas Warning | EKA | 12 hr | |
| Dec 27, 2:44 PM PST | Gale Watch | EKA | 12 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.