Alert archive / California / River Flood Advisories in 2012

River Flood Advisory 2, NWS Eureka, CA

December 21, 2012Mendocino County, California

NWS Eureka, CA issued this river flood advisory at Dec 21, 2012, 9:00 AM PST for Mendocino County, California. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Dec 21, 2012, 9:00 AM PST (17:00 UTC)
Expired
Dec 21, 2012, 6:24 PM PST
In force
9 hr
Issued by
NWS Eureka, CA

County Mendocino County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 17:00 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 Russian River near Hopland (HOPC1). The gauge peaked at 16.01 ft at Dec 21, 2012, 11:00 AM PST.

minormoderate102012/2112/2212/23
Minor stage
15 ft
Moderate stage
23 ft
Major stage
26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11462500, 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.

962 
WGUS86 KEKA 211709
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
909 AM PST FRI DEC 21 2012

...THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FLOOD ADVISORY
FOR THE RUSSIAN RIVER...

  RUSSIAN RIVER NEAR HOPLAND AFFECTING MENDOCINO COUNTY 

MODERATE RAIN OVER THE RUSSIAN RIVER BASIN IS CAUSING A RAPID
RISE ON THE RUSSIAN RIVER THIS MORNING. RAINFALL IS EXPECTED
TO CONTINUE THROUGH THE DAY. 

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 FRIDAY, DECEMBER 21, 2012 AT 4 PM
OR AS WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-220509-
/O.NEW.KEKA.FL.Y.0002.121221T1700Z-121222T0700Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
909 AM PST FRI DEC 21 2012

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A
* FLOOD ADVISORY FOR THE RUSSIAN RIVER NEAR HOPLAND.
* FROM THIS MORNING TO THIS EVENING.
* AT  8:00 AM FRIDAY THE STAGE WAS 14.6 FEET.
* FLOOD STAGE IS 21 FEET.
* FORECAST...THE RIVER WILL RISE TO NEAR 16.5 FEET NEAR NOON.
  THEN FORECAST TO RECEDE TO NEAR 14 FT LATE THIS EVENING.
* IMPACTS...AT 17 FEET...EXPECT SIGNIFICANT FLOODING OF HIGHWAY 175
  AT THE APPROACHES TO THE RUSSIAN RIVER BRIDGE. MINOR FLOODING OF 
  HIGHWAY 222 NEAR UKIAH...AND IN CROP LAND ALONG THE LEFT AND RIGHT 
  BANKS NEAR HOPLAND.


$$
2 follow-up statements
150 
WGUS86 KEKA 212249
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
249 PM PST FRI DEC 21 2012

...THE FLOOD ADVISORY CONTINUES FOR THE RUSSIAN RIVER...
 
  RUSSIAN RIVER NEAR HOPLAND AFFECTING MENDOCINO COUNTY 

THE RUSSIAN RIVER FORECAST TO CREST NEAR 15.5 FEET. THEN WILL START
TO RECEDE LATER THIS AFTERNOON AND THROUGH THE EVENING.

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 FRIDAY DECEMBER 21 AT 7:30 PM OR AS
WARRANTED BY CHANGING CONDITIONS.

&&

CAC045-220400-
/O.EXT.KEKA.FL.Y.0002.000000T0000Z-121222T0400Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
249 PM PST FRI DEC 21 2012

THE FLOOD ADVISORY IS EXTENDED FOR THE RUSSIAN RIVER NEAR HOPLAND.
* UNTIL THIS EVENING.
* AT  2:00 PM FRIDAY THE STAGE WAS 15.4 FEET.
* FLOOD STAGE IS 21 FEET.
* FORECAST...THE RIVER WILL RISE TO NEAR 15.5 FEET THIS AFTERNOON.
  THEN WILL RECEDE TO NEAR 13 FEET AT 9:00 PM THIS EVENING.

$$
349 
WGUS86 KEKA 220224
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
624 PM PST FRI DEC 21 2012

...THE FLOOD ADVISORY IS CANCELLED FOR THE RUSSIAN RIVER...
 
  RUSSIAN RIVER NEAR HOPLAND AFFECTING MENDOCINO COUNTY

ISOLATED TO SCATTERED SHOWERS WILL CONTINUE THIS EVENING AS A 
TROUGH OF LOW PRESSURE PASSES ACROSS THE AREA. ADDITIONAL RAIN 
IS FORECAST TO PRODUCE LIMITED EFFECTS ON THE RUSSIAN RIVER NEAR 
HOPLAND. THEREFORE THE FLOOD ADVISORY IS NOW CANCELLED.

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.

THIS WILL BE THE LAST STATEMENT FOR THIS EVENT UNLESS WARRANTED BY 
CHANGING CONDITIONS.

NO FOLLOWING STATEMENTS WILL BE ISSUED FOR THE RUSSIAN AT HOPLAND FOR
THIS EVENT.

&&

CAC045-220254-
/O.CAN.KEKA.FL.Y.0002.000000T0000Z-121222T0400Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
624 PM PST FRI DEC 21 2012

THE FLOOD ADVISORY IS CANCELLED FOR
  THE RUSSIAN RIVER NEAR HOPLAND.
* AT 5:00 PM FRIDAY THE STAGE WAS 13.0 FEET.
* FLOOD STAGE IS 21.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO NEAR 12 FEET ON 
  SATURDAY.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 9:15 PM PSTHigh Surf AdvisoryEKA23 hr
Dec 21, 2:42 AM PSTGale WarningEKA24 hr
Dec 21, 3:51 AM PSTAreal Flood AdvisoryEKAMendocino6 hr
Dec 21, 8:09 AM PSTRiver Flood WarningEKAMendocino6 hr
Dec 21, 9:50 AM PSTAreal Flood AdvisoryEKAMendocino5 hr

Nearby

River Flood Advisories in California, 2012Every river flood advisory 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.