Alert archive / California / River Flood Warnings in 2017

River Flood Warning 7, NWS Eureka, CA

January 18, 2017Mendocino County, California

NWS Eureka, CA issued this river flood warning at Jan 18, 2017, 2:58 PM PST for Mendocino County, California. It took effect at Jan 19, 2017, 4:21 AM PST. It was in force for 13 hr.

The area

The outline as issued.

The facts

Issued
Jan 18, 2017, 2:58 PM PST (22:58 UTC)
In effect from
Jan 19, 2017, 4:21 AM PST
Expired
Jan 19, 2017, 5:04 PM PST
In force
13 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 22:59 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 20.06 ft at Jan 19, 2017, 3:00 AM PST.

minormoderate10203001/1801/1901/2001/21
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.

111 
WGUS46 KEKA 182258
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
258 PM PST WED JAN 18 2017

...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

Steady, heavy rain will continue through this evening and diminish into 
showers later tonight, causing the Navarro River to continue to rise 
through Thursday morning. 

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 around 10 PM this evening or as 
warranted by changing conditions.

&&

CAC045-190658-
/O.NEW.KEKA.FL.W.0007.170119T1221Z-170120T0104Z/
/NVRC1.1.ER.170119T1221Z.170119T1600Z.170119T1904Z.NO/
258 PM PST WED JAN 18 2017

The National Weather Service in Eureka has issued a 

* Flood Warning for the Navarro River At Navarro.
* From late tonight to Thursday afternoon...or until the warning is 
  cancelled.
* At 2:15 PM Wednesday, the stage was 7.0 feet. 
* Minor flooding is forecast. 
* Flood stage is 23.0 feet. 
* FORECAST...The river is forecast to rise above flood stage of 23.0 ft 
  early Thursday morning...then crest near 26.1 ft slightly later in the 
  morning. The river is then forecast to fall below flood stage of 23.0 ft 
  around 11 AM on Thursday.
* 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 25.7 feet
  on March 28, 2012.

&&

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

$$
3 follow-up statements
341 
WGUS86 KEKA 190532
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
932 PM PST WED JAN 18 2017

The Flood Warning continues for the following river in 
California...
 
  Navarro River at Navarro affecting Mendocino County 

Rain showers will continue tonight. The Navarro River will continue to rise 
through Thursday morning. 

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 around 400 AM or as warranted by 
changing conditions.

&&

CAC045-191732-
/O.EXT.KEKA.FL.W.0007.170119T1430Z-170119T2306Z/
/NVRC1.1.ER.170119T1430Z.170119T1600Z.170119T1706Z.NO/
932 PM PST WED JAN 18 2017

The Flood Warning continues for the Navarro River At Navarro.

* From Thursday morning until Thursday afternoon or until the warning 
  is cancelled.
* At 8:15 PM Wednesday, the stage was 9.6 feet. 
* Minor flooding is forecast.
* Flood stage is 23.0 feet. 
* FORECAST...This river is expected to rise above flood stage of  
  23.0 ft Thursday morning, then crest near 23.5 ft late 
  Thursday morning. The river is then forecast to fall below flood 
  stage of 23.0 ft later Thursday morning, then recede to near 14.0 ft 
  by Friday morning.
* 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.

&&

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

$$
078 
WGUS86 KEKA 191012
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
212 AM PST THU JAN 19 2017

...The flood warning continues for the following rivers in 
California...
 
  Navarro River At Navarro affecting Mendocino COUNTY 

Showers will taper off this afternoon. Water will slowly drain and
the river will continue to rise through mid 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 9am pst or as 
warranted by changing conditions.

&&

CAC045-192212-
/O.EXT.KEKA.FL.W.0007.170119T1242Z-170120T0024Z/
/NVRC1.1.ER.170119T1242Z.170119T1500Z.170119T1824Z.NO/
212 AM PST THU JAN 19 2017

...Flood Warning extended until this afternoon...The Flood Warning 
continues for
  The Navarro River At Navarro.
* UNTIL THIS AFTERNOON...or until the warning is cancelled.
* At  1:15 AM Thursday the stage was 19.4 feet. 
* Minor flooding is forecast.
* Flood Stage is 23.0 feet. 

* FORECAST...This river is expected to rise above flood stage of  
  23.0 ft early this morning then forecast to crest near 24.5 ft this
  morning then forecast to fall below flood stage of 23.0 ft late 
  this morning.
* 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.

 &&

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


$$
404 
WGUS86 KEKA 191649
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
849 AM PST THU JAN 19 2017

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

The Navarro River has crested and has begun to recede. Moderate to 
heavy rain will cause the river to rise again through the day 
Friday, and additional flooding may occur. 

This is the last statement that will be issued for this event.

&&

CAC045-191719-
/O.CAN.KEKA.FL.W.0007.000000T0000Z-170121T0812Z/
/NVRC1.1.ER.170120T1907Z.170120T2300Z.170121T0212Z.NO/
849 AM PST THU JAN 19 2017

The Flood Warning is cancelled for
  The Navarro River At Navarro.
* At  8:15 AM Thursday the stage was 19.0 feet. 
* Flood Stage is 23.0 feet. 

* FORECAST...This river is forecast to recede to near 14.0 ft early 
  tomorrow morning. 

 &&

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
Jan 18, 9:18 AM PSTRiver Flood WatchEKAMendocino6 hr
Jan 18, 9:33 AM PSTRiver Flood AdvisoryEKAMendocino28 hr
Jan 18, 11:03 AM PSTWind AdvisoryEKADel Norte, Humboldt5 hr
Jan 18, 1:22 PM PSTAreal Flood AdvisoryEKADel Norte, Humboldt, Trinity3 hr

Nearby

River Flood Warnings in California, 2017Every river flood warning in 2017

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.