Alert archive / California / River Flood Warnings in 2016

River Flood Warning 6, NWS Eureka, CA

March 5, 2016Mendocino County, California

NWS Eureka, CA issued this river flood warning at Mar 5, 2016, 1:59 PM PST for Mendocino County, California. It took effect at Mar 6, 2016, 2:30 AM PST. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Mar 5, 2016, 1:59 PM PST (21:59 UTC)
In effect from
Mar 6, 2016, 2:30 AM PST
Expired
Mar 6, 2016, 11:00 AM PST
In force
9 hr
Issued by
NWS Eureka, CA
Area
Storm-based polygon
Flood severity
Minor

County Mendocino County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 155 km from the middle of the area, began a volume at 21:59 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 21.28 ft at Mar 6, 2016, 5:00 AM PST.

minormoderate10203003/0503/0603/07
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.

773 
WGUS46 KEKA 052159
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
159 PM PST SAT MAR 5 2016

...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

An atmospheric river ahead of a cold front is forecast to bring
significant rain accumulation to southern Mendocino County today through 
this evening. This system will produce rainfall amounts ranging from 2 to
4 inches and lead to a rapid rise and flooding on the Navarro River.


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 10 PM Saturday March 5th or as 
warranted by changing conditions.

&&

CAC045-060559-
/O.NEW.KEKA.FL.W.0006.160306T1030Z-160306T1900Z/
/NVRC1.1.ER.160306T1130Z.160306T1400Z.160306T1716Z.NO/
159 PM PST SAT MAR 5 2016

The National Weather Service in Eureka has issued a 

* FLOOD WARNING For 
  The Navarro River At Navarro.
* From late tonight to Sunday morning...or until the warning is 
  canceled.
* At 1:15 PM Saturday the stage was 3.9 feet. 
* Minor flooding is forecast. 
* Flood stage is 23.0 feet. 
* The river is forecast to rise above flood stage of 23 feet late
  tonight and then crest near 25 feet early Sunday morning. The river
  will then recede to below flood stage late Sunday morning and to
  near 16 feet Sunday evening.
* 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.
* FLOOD HISTORY...This crest compares to a previous crest of 25.6 feet
  on Jan 20 2010.

 &&

LAT...LON 3921 12354 3914 12366 3917 12375 3925 12376


$$
1 follow-up statement
001 
WGUS86 KEKA 060510
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
910 PM PST SAT MAR 5 2016

...The flood warning is cancelled for the following rivers in 
California...
 
  Navarro River At Navarro affecting Mendocino County


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.

&&

CAC045-060540-
/O.CAN.KEKA.FL.W.0006.000000T0000Z-160306T1900Z/
/NVRC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
910 PM PST SAT MAR 5 2016

THE FLOOD WARNING IS CANCELLED FOR
  THE Navarro River At Navarro.
* AT  8:15 PM Saturday THE stage WAS 7.9 feet. 

* FLOOD STAGE IS 23.0 feet. 

...FLOOD WARNING FOR THE NAVARRO RIVER IS CANCELED...

A SLOW MOVING BAND OF RAIN CONTINUES TO MOVE EAST OF THE AREA.
ALTHOUGH RAINFALL WILL CONTINUE TO FALL THROUGHOUT THE NIGHT...
FLOODING OF THE NAVARRO RIVER IS NOT EXPECTED. THE CURRENT STAGE AT
NAVARRO IS 8 FT. THE RIVER IS EXPECTED TO CONTINUE TO RISE AND CREST
NEAR 18 FEET BY 6AM SUNDAY...REMAINING BELOW FLOOD STAGE WHICH IS
23.0 FEET. THIS RIVER IS EXPECTED TO FALL TO NEAR 15 FT BY SUNDAY
AFTERNOON THEN RISE AGAIN MIDDAY MONDAY AS THE NEXT STORM BRINGS
ADDITIONAL RAINFALL. 

THIS WILL BE THE LAST STATEMENT ISSUED ON THIS EVENT, UNLESS FURTHER 
FLOODING THREATENS.

 &&

LAT...LON 3921 12354 3914 12366 3917 12375 3925 12376


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 2:16 PM PSTRiver Flood AdvisoryEKAMendocino22 hr
Mar 5, 3:32 PM PSTAreal Flood AdvisoryEKAHumboldt, Mendocino, Trinity8 hr

Nearby

River Flood Warnings in California, 2016Every river flood warning in 2016

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.