Alert archive / California / River Flood Warnings in 2022

River Flood Warning 3, NWS Reno, NV

December 30, 2022Nevada County, Placer County, California

NWS Reno, NV issued this river flood warning at Dec 30, 2022, 9:58 PM PST for Nevada County, Placer County, California. It took effect at Dec 31, 2022, 5:00 AM PST. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued: Dec 30, 2022, 9:58 PM PST (05:58 UTC)
In effect from: Dec 31, 2022, 5:00 AM PST
Expired: Jan 1, 2023, 8:00 AM PST
In force: 27 hr
Issued by: NWS Reno, NV
Area: Storm-based polygon
Flood severity: Minor

Counties Nevada County, CA, Placer County, CA

The radar

The Beale AFB radar (KBBX), 84 km from the middle of the area, began a volume at 06:00 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 Truckee River near Truckee (TRCC1). The gauge peaked at 4.44 ft at Dec 31, 2022, 12:00 AM PST.

Action stage: 4.5 ft
Minor stage: 5.5 ft
Moderate stage: 6.5 ft
Major stage: 7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 10338000, 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Reno, NV wrote its last area forecast discussion before this river flood warning went out at Dec 30, 6:09 PM PST, 3 hours 49 minutes earlier.

Area forecast discussion, Dec 30, 6:09 PM PST, 3 hours 49 minutes before

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The office that day

Everything else NWS Reno, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 30, 5:09 PM PST	Areal Flood Advisory	REV	Douglas, Storey, Washoe	24 hr
Dec 30, 9:58 PM PST	River Flood Advisory	REV	Storey, Washoe	34 hr
Dec 30, 9:58 PM PST	River Flood Advisory	REV	Storey, Washoe	34 hr
Dec 30, 9:58 PM PST	River Flood Advisory	REV	Washoe	34 hr
Dec 31, 4:42 AM PST	Winter Weather Advisory	REV	Churchill, Lyon, Pershing, Washoe	17 hr

Nearby

River Flood Warnings in California, 2022 Every river flood warning in 2022

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.