Alert archive / California / River Flood Watches in 2024

River Flood Watch 2, NWS Eureka, CA

January 12, 2024Humboldt County, California

NWS Eureka, CA issued this river flood watch at Jan 12, 2024, 2:11 PM PST for Humboldt County, California. It took effect at Jan 13, 2024, 7:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 12, 2024, 2:11 PM PST (22:11 UTC)
In effect from: Jan 13, 2024, 7:00 PM PST
Expired: Jan 13, 2024, 10:03 AM PST
In force
Issued by: NWS Eureka, CA
Area: Storm-based polygon
Flood severity: None

County Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 39 km from the middle of the area, began a volume at 22:13 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 river

Written for the forecast point Mad River near Arcata (ARCC1). The gauge peaked at 27.24 ft at Jan 13, 2024, 8:00 PM PST.

Action stage: 15 ft
Minor stage: 22 ft
Moderate stage: 24 ft
Major stage: 28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11481000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood watch went out at Jan 12, 5:37 AM PST, 8 hours 34 minutes earlier.

Area forecast discussion, Jan 12, 5:37 AM PST, 8 hours 34 minutes before

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The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 11, 8:46 PM PST	Gale Watch	EKA		18 hr
Jan 12, 2:21 AM PST	Flood Watch	EKA	Del Norte, Humboldt, Lake, Mendocino, Trinity	43 hr
Jan 12, 8:59 AM PST	River Flood Watch	EKA	Mendocino	30 hr
Jan 12, 2:51 PM PST	Gale Warning	EKA		24 hr

Nearby

River Flood Watches in California, 2024 Every river flood watch 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.