Alert archive / California / River Flood Warnings in 2012

River Flood Warning 3, NWS Eureka, CA

March 27, 2012Mendocino County, California

NWS Eureka, CA issued this river flood warning at Mar 27, 2012, 2:34 PM PDT for Mendocino County, California. It took effect at Mar 27, 2012, 9:43 PM PDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Mar 27, 2012, 2:34 PM PDT (21:34 UTC)
In effect from
Mar 27, 2012, 9:43 PM PDT
Expired
Mar 28, 2012, 5:08 AM PDT
In force
7 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 21:35 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 25.50 ft at Mar 28, 2012, 12:00 AM PDT.

minormoderate10203003/2703/2803/29
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.

311 
WGUS46 KEKA 272134
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
234 PM PDT TUE MAR 27 2012

...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

ANOTHER 1 TO 1.5 INCHES OF RAINFALL IS EXPECTED OVER THE NAVARRO
RIVER BASIN DURING THE REMAINDER OF THIS AFTERNOON AND OVERNIGHT. THE
RAINFALL WILL RESULT IN THE NAVARRO RIVER AT NAVARRO RISING ABOVE
FLOOD STAGE LATE TONIGHT.

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 WEDNESDAY MARCH 28 OR
AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-280534-
/O.NEW.KEKA.FL.W.0003.120328T0554Z-120328T1208Z/
/NVRC1.1.ER.120328T0554Z.120328T0600Z.120328T0608Z.NO/
234 PM PDT TUE MAR 27 2012

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A 

* FLOOD WARNING FOR THE NAVARRO RIVER AT NAVARRO.
* FROM 1100 PM THIS EVENING TO EARLY WEDNESDAY MORNING...OR
  UNTIL THE WARNING  IS CANCELLED.
* AT  1:15 PM TUESDAY THE STAGE WAS 11.3 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 23.0 FEET. 
* IMPACTS...AT 23.0 FEET...FLOODING OF HIGHWAY 128 APPROXIMATELY 5 
  MILES FROM HIGHWAY 1 IS CERTAIN AND THE ROAD WILL BE CLOSED. 
  MOTORISTS SHOULD USE ALTERNATE ROUTES.

$$
1 follow-up statement
303 
WGUS86 KEKA 280450
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
950 PM PDT TUE MAR 27 2012

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
CALIFORNIA...
 
  NAVARRO RIVER AT NAVARRO AFFECTING MENDOCINO COUNTY 

THE NAVARRO RIVER AT NAVARRO HAS SURPASSED FLOOD STAGE AND WILL
CONTINUE TO RISE MUCH OF THE NIGHT AS UP TO AN ADDITIONAL 0.5 INCH
OF RAIN IS EXPECTED. 

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 WEDNESDAY MARCH 28 OR
AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-281208-
/O.EXT.KEKA.FL.W.0003.120328T0443Z-120328T1208Z/
/NVRC1.1.ER.120328T0307Z.120328T0415Z.120328T0608Z.NO/
950 PM PDT TUE MAR 27 2012

THE FLOOD WARNING CONTINUES FOR
  THE NAVARRO RIVER AT NAVARRO.
* UNTIL THE WARNING IS CANCELLED.
* AT  9:15 PM TUESDAY THE STAGE WAS 24.4 FEET. 
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL PEAK AROUND 26 FT LATE TONIGHT.
* FLOOD STAGE IS 23.0 FEET. 
* IMPACTS...AT 23.0 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 27, 3:35 AM PDTWinter Storm WarningEKA24 hr
Mar 27, 8:50 AM PDTSmall Craft AdvisoryEKA10 days

Nearby

River Flood Warnings in California, 2012Every river flood warning in 2012

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.