Alert archive / California / River Flood Warnings in 2012

River Flood Warning 12, NWS Eureka, CA

December 2, 2012Humboldt County, California

NWS Eureka, CA issued this river flood warning at Dec 2, 2012, 9:40 AM PST for Humboldt County, California. It took effect at Dec 2, 2012, 9:56 AM PST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 2, 2012, 9:40 AM PST (17:40 UTC)
In effect from
Dec 2, 2012, 9:56 AM PST
Expired
Dec 2, 2012, 2:21 PM PST
In force
4 hr
Issued by
NWS Eureka, CA
Flood severity
Minor

County Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 39 km from the middle of the area, began a volume at 17:42 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 22.59 ft at Dec 2, 2012, 12:00 PM PST.

actionminormoderate1015202512/0212/03
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.

The text

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

804 
WGUS46 KEKA 021740
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
940 AM PST SUN DEC 2 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...

  MAD RIVER NEAR ARCATA AFFECTING HUMBOLDT COUNTY

HEAVY RAINFALL WILL TAPER OFF FROM NORTHWEST TO SOUTHEAST THIS
  TODAYG BUT ALREADY 2 TO 5 INCHES OF RAIN HAS FALLEN ACROSS
  NORTHWEST CALIFORNIA WITH AN ADDITIONAL INCH OR TWO LIKELY
  ACROSS MENDOCINO COUNTY. UPSLOPE FAVORED AREAS OF THE HIGHER
  TERRAIN WILL END UP WITH 7 TO 10 INCHES. RIVERS WILL 
  CONTINUE TO RISE THIS MORNING. 

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 SUNDAY, DECEMBER 2, 2012 AT 3 PM PST OR AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC023-030140-
/O.NEW.KEKA.FL.W.0012.121202T1756Z-121203T0152Z/
/ARCC1.1.ER.121202T1756Z.121202T1900Z.121202T1952Z.NO/
940 AM PST SUN DEC 2 2012

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A 

* FLOOD WARNING FOR 
  THE MAD RIVER NEAR ARCATA.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:45 AM SUNDAY THE STAGE WAS 20.2 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 22 FEET. 
* IMPACTS...AT 23 FEET...SIGNIFICANT FLOODING OF PORTIONS OF MAD 
  RIVER BEACH ROAD AND ADJACENT FARMLANDS IS LIKELY.  MAY CAUSE WATER
  TO FLOW ACROSS ROADS TO TYEE CITY. 
* FLOOD HISTORY...THIS CREST COMPARES TO A PREVIOUS CREST OF 22.7 FEET
  ON MAR 18 1975.

$$
2 follow-up statements
539 
WGUS86 KEKA 021745
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
945 AM PST SUN DEC 2 2012

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
CALIFORNIA...
 
  VAN DUZEN RIVER NEAR BRIDGEVILLE AFFECTING HUMBOLDT COUNTY

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
CALIFORNIA...
 
  NAVARRO RIVER AT NAVARRO AFFECTING MENDOCINO COUNTY 
  RUSSIAN RIVER NEAR HOPLAND AFFECTING MENDOCINO COUNTY 
  EEL RIVER AT FERNBRIDGE AFFECTING HUMBOLDT COUNTY 
  MAD RIVER NEAR ARCATA AFFECTING HUMBOLDT COUNTY 

HEAVY RAINFALL WILL TAPER OFF FROM NORTHWEST TO SOUTHEAST THIS
  MORNING BUT ALREADY 2 TO 5 INCHES OF RAIN HAS FALLEN ACROSS
  NORTHWEST CALIFORNIA WITH AN ADDITIONAL INCH OR TWO LIKELY
  ACROSS MENDOCINO COUNTY. UPSLOPE FAVORED AREAS OF THE HIGHER
  TERRAIN WILL END UP WITH 7 TO 10 INCHES. RIVERS WILL 
  CONTINUE TO RISE RAPIDLY THIS MORNING. 



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 DECEMBER 2, 2012 AT 3 PM PST OR AS 
WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-030545-
/O.EXT.KEKA.FL.W.0009.121202T1836Z-121203T0715Z/
/HOPC1.2.ER.121202T1836Z.121202T2300Z.121203T0115Z.NO/
945 AM PST SUN DEC 2 2012

...FLOOD WARNING EXTENDED UNTIL THIS EVENING...THE FLOOD WARNING 
CONTINUES FOR
  THE RUSSIAN RIVER NEAR HOPLAND.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT  9:00 AM SUNDAY THE STAGE WAS 11.8 FEET. 
* FLOOD STAGE IS 21 FEET. 
* IMPACTS...AT 24 FEET...FLOODING OF LOW LYING STRUCTURES AND 
  FARMLAND IN THE HOPLAND...UKIAH AND TALMAGE AREAS WILL OCCUR. MANY 
  SECONDARY ROADS MAY ALSO BE FLOODED. SEVERE BANK EROSION IS 
  POSSIBLE. 

$$

CAC023-030545-
/O.EXT.KEKA.FL.W.0010.121202T2345Z-121204T0020Z/
/FRNC1.2.ER.121202T2345Z.121203T0800Z.121203T1820Z.NO/
945 AM PST SUN DEC 2 2012

...FLOOD WARNING EXTENDED UNTIL MONDAY AFTERNOON...THE FLOOD WARNING 
CONTINUES FOR
  THE EEL RIVER AT FERNBRIDGE.
* FROM THIS AFTERNOON TO MONDAY AFTERNOON...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT  9:15 AM SUNDAY THE STAGE WAS 16.6 FEET. 
* FLOOD STAGE IS 20 FEET. 
* IMPACTS...AT 24 FEET...MINOR FLOODING OF HWY 211 TO FERNDALE 
  SOUTH OF FERNBRIDGE IS EXPECTED.  MUCH OF THE EEL DELTA MAY BE 
  FLOODED, INCLUDING AREAS NORTHWEST OF LOLETA...THE WESTERN PORTION 
  OF CANNIBAL ISLAND ROAD. FLOODING WILL BE ENHANCED FOR LONGER 
  DURATION EVENTS. 

$$

CAC023-021815-
/O.CAN.KEKA.FL.W.0011.000000T0000Z-121202T2312Z/
/BRGC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
945 AM PST SUN DEC 2 2012

THE FLOOD WARNING IS CANCELLED FOR
  THE VAN DUZEN RIVER NEAR BRIDGEVILLE.
* AT  9:15 AM SUNDAY THE STAGE WAS 15.2 FEET. 
* FLOOD STAGE IS 17 FEET. 
* IMPACTS...AT 17.0 FEET...FLOODING WILL BEGIN IN LOWER PORTIONS OF 
  GRIZZLY CREEK STATE PARK AND ALONG RIVER BAR ROAD.

$$

CAC045-030545-
/O.EXT.KEKA.FL.W.0008.000000T0000Z-121203T0900Z/
/NVRC1.1.ER.121202T1641Z.121202T2300Z.121203T0300Z.NO/
945 AM PST SUN DEC 2 2012

THE FLOOD WARNING CONTINUES FOR
  THE NAVARRO RIVER AT NAVARRO.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  9:15 AM SUNDAY THE STAGE WAS 24.4 FEET. 
* FLOOD STAGE IS 23 FEET. 
* IMPACTS...AT 30 FEET...WATER WILL FLOW OVER THE BANKS OF THE 
  RIVER APPROXIMATELY 1 MILE EAST OF HWY 128...AND WILL BEGIN TO 
  FLOOD PROPERTY IN THIS AREA INCLUDING SEVERAL HOMES. EXPECT 
  COMPLETE CLOSURE OF HIGHWAY 128.

$$

CAC023-030152-
/O.CON.KEKA.FL.W.0012.121202T1756Z-121203T0152Z/
/ARCC1.1.ER.121202T1756Z.121202T1900Z.121202T1952Z.NO/
945 AM PST SUN DEC 2 2012

THE FLOOD WARNING CONTINUES FOR
  THE MAD RIVER NEAR ARCATA.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:45 AM SUNDAY THE STAGE WAS 20.2 FEET. 
* FLOOD STAGE IS 22 FEET. 
* IMPACTS...AT 23 FEET...SIGNIFICANT FLOODING OF PORTIONS OF MAD 
  RIVER BEACH ROAD AND ADJACENT FARMLANDS IS LIKELY.  MAY CAUSE WATER
  TO FLOW ACROSS ROADS TO TYEE CITY.  

$$
479 
WGUS86 KEKA 022221
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
221 PM PST SUN DEC 2 2012

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
CALIFORNIA...
 
  MAD RIVER NEAR ARCATA AFFECTING HUMBOLDT COUNTY

HEAVY RAINFALL HAS TAPERED OFF BUT SCATTERED SHOWERS ARE EXPECTED FOR THE REMAINDER OF TODAY.

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 SUNDAY, DECEMBER 2,2012 AT 9 PM PST OR AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC023-022251-
/O.CAN.KEKA.FL.W.0012.000000T0000Z-121203T0152Z/
/ARCC1.1.ER.121202T1814Z.121202T1945Z.121202T2121Z.NO/
221 PM PST SUN DEC 2 2012

THE FLOOD WARNING IS CANCELLED FOR
  THE MAD RIVER NEAR ARCATA.
* AT  1:45 PM SUNDAY THE STAGE WAS 21.6 FEET. 
* FELL BELOW FLOOD STAGE AT  1:21 PM SUNDAY.

* FLOOD STAGE IS 22 FEET. 
* IMPACTS...AT 22 FEET...SIGNIFICANT FLOODING ALONG PORTIONS OF MAD
  RIVER BEACH ROAD IS LIKELY.  WATER MAY FLOW ACROSS ROADS TO TYEE 
  CITY. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 1, 7:11 PM PSTAreal Flood WarningEKADel Norte, Humboldt12 hr
Dec 1, 8:44 PM PSTAreal Flood WarningEKAMendocino10 hr
Dec 1, 8:49 PM PSTAreal Flood WarningEKAMendocino10 hr
Dec 1, 11:42 PM PSTAreal Flood AdvisoryEKADel Norte, Humboldt, Trinity8 hr
Dec 1, 11:47 PM PSTAreal Flood AdvisoryEKAMendocino12 hr
Dec 2, 3:04 AM PSTGale WatchEKA24 hr
Dec 2, 3:04 AM PSTSmall Craft AdvisoryEKA12 hr
Dec 2, 6:52 AM PSTAreal Flood WarningEKADel Norte, Humboldt3 hr
Dec 2, 6:56 AM PSTAreal Flood WarningEKAMendocino3 hr
Dec 2, 6:58 AM PSTAreal Flood WarningEKAMendocino3 hr
Dec 2, 10:45 AM PSTAreal Flood AdvisoryEKADel Norte, Humboldt, Mendocino, Trinity4 hr
Dec 2, 2:46 PM PSTAreal Flood AdvisoryEKADel Norte, Humboldt, Mendocino, Trinity3 hr

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.