Alert archive / California / River Flood Warnings in 2011

River Flood Warning 2, NWS Eureka, CA

March 23, 2011Mendocino County, California

NWS Eureka, CA issued this river flood warning at Mar 23, 2011, 2:51 PM PDT for Mendocino County, California. It took effect at Mar 24, 2011, 4:42 PM PDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Mar 23, 2011, 2:51 PM PDT (21:51 UTC)
In effect from
Mar 24, 2011, 4:42 PM PDT
Expired
Mar 25, 2011, 8:33 AM PDT
In force
16 hr
Issued by
NWS Eureka, CA
Flood severity
Minor

County Mendocino County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 21:51 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 Navarro River near Navarro (NVRC1). The gauge peaked at 26.53 ft at Mar 24, 2011, 6:00 PM PDT.

minormoderate10203003/2303/2403/2503/26
Minor stage
23 ft
Moderate stage
30 ft
Major stage
34 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11468000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted, in the capitals the NWS used until 2016.

075 
WGUS46 KEKA 232151
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
251 PM PDT WED MAR 23 2011

...THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED
A FLOOD WARNING IN COOPERATION WITH THE CALIFORNIA DEPARTMENT
OF WATER RESOURCES FOR THE FOLLOWING RIVERS IN CALIFORNIA...

  NAVARRO RIVER AT NAVARRO AFFECTING MENDOCINO COUNTY

THE SECOND OF TWO STORMS WILL ARRIVE TONIGHT. THIS STORM WILL
BRING SIGNIFICANT RAINFALL TO THE NAVARRO RIVER BASIN
TONIGHT THROUGH THURSDAY MORNING. THE 24 HOUR RIVER BASIN
RAINFALL AMOUNT FROM 500 PM TONIGHT TO 500 PM THURSDAY WILL
RANGE FROM 1.5 TO 2.0 INCHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...

DO NOT DRIVE YOUR CAR ACROSS FLOODED ROADWAYS. IT ONLY TAKES ABOUT 
TWO FEET OF WATER TO FLOAT MOST VEHICLES.FOR AREA ROAD CONDITIONS...
CALL CALTRANS AT 1-800-427-7623.

STAY TUNED TO DEVELOPMENTS BY LISTENING TO NOAA WEATHER RADIO OR YOUR
LOCAL TV OR RADIO STATIONS.

THE NEXT STATEMENT WILL BE ISSUED BY 1000 AM PDT THURSDAY MARCH 24
2011 OR AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-240951-
/O.NEW.KEKA.FL.W.0002.110324T2342Z-110325T1533Z/
/NVRC1.1.ER.110324T2342Z.110325T0600Z.110325T0933Z.NO/
251 PM PDT WED MAR 23 2011

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A 

* FLOOD WARNING FOR THE NAVARRO RIVER AT NAVARRO.
* FROM THURSDAY AFTERNOON TO FRIDAY MORNING...OR UNTIL THE WARNING IS
  CANCELLED.
* AT  2:15 PM WEDNESDAY THE STAGE WAS 14.1 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...FLOOD STAGE IS EXPECTED TO BE REACHED AROUND 500 PM
  THURSDAY AFTERNOON. THE NAVARRO RIVER WILL CREST NEAR 25.6
  FEET AROUND 1100 PM THURSDAY NIGHT. THEN WILL RECEDE TO BELOW 
  FLOOD STAGE OF 23.0 FEET AROUND 300 AM FRIDAY MORNING.
* IMPACTS...AT 25.0 FEET...FLOODING OF HIGHWAY 128 APPROXIMATELY 5 
  MILES FROM HIGHWAY 1 IS CERTAIN AND THE ROAD WILL BE CLOSED. 
  MOTORISTS SHOULD USE ALTERNATE ROUTES

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 2:59 PM PDTRiver Flood AdvisoryEKAMendocino32 hr

Nearby

River Flood Warnings in California, 2011Every river flood warning in 2011

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.