Alert archive / California / River Flood Warnings in 2017

River Flood Warning 8, NWS Eureka, CA

January 19, 2017Mendocino County, California

NWS Eureka, CA issued this river flood warning at Jan 19, 2017, 2:51 PM PST for Mendocino County, California. It took effect at Jan 20, 2017, 9:40 AM PST. It was in force for 13 hr.

The area

The outline as issued.

The facts

Issued
Jan 19, 2017, 2:51 PM PST (22:51 UTC)
In effect from
Jan 20, 2017, 9:40 AM PST
Expired
Jan 20, 2017, 10:54 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 22:55 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.

minormoderate10203001/1901/2001/2101/22
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.

100 
WGUS46 KEKA 192251
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
251 PM PST THU JAN 19 2017

...The National Weather Service in Eureka has issued
a Flood Warning in cooperation with the California Department
of Water Resources for the following river in California...

  Navarro River At Navarro affecting Mendocino County

Moderate to occasionally heavy rainfall tonight into early Friday
morning will cause a rapid and steep rise on the Navarro River. The
river is forecast to crest above flood stage Friday afternoon.


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 PM PST January 19 2017 or
as warranted by changing conditions.

&&

CAC045-200651-
/O.NEW.KEKA.FL.W.0008.170120T1945Z-170121T0654Z/
/NVRC1.1.ER.170120T1945Z.170120T2200Z.170121T0054Z.NO/
251 PM PST THU JAN 19 2017

 The National Weather Service in Eureka has issued a 
* Flood Warning for 
  the Navarro River At Navarro.
* From Friday morning to Friday evening...or until the warning is 
  cancelled.
* At 2:15 PM Thursday the stage was 17.5 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 near noon Friday. Then forecast to crest near 24.0 ft
  Friday afternoon. Then forecast to fall below flood stage
  of 23.0 ft tomorrow afternoon.
* 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


$$
4 follow-up statements
794 
WGUS86 KEKA 200339
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
739 PM PST THU JAN 19 2017

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

Moderate to occasionally heavy rainfall tonight into early Friday
morning will cause a rapid and steep rise on the Navarro River. The
river is forecast to crest above flood stage Friday afternoon.


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 1000 AM Friday morning or as 
warranted by changing conditions.

&&

CAC045-201539-
/O.EXT.KEKA.FL.W.0008.170120T1740Z-170121T0020Z/
/NVRC1.1.ER.170120T1740Z.170120T1800Z.170120T1820Z.NO/
739 PM PST THU JAN 19 2017

The Flood Warning continues for the Navarro River At Navarro.
* From Friday morning to Friday afternoon or until the warning is 
  cancelled.
* At  6:15 PM Thursday the stage was 16.4 feet. 
* Minor flooding is forecast.
* Flood Stage is 23.0 feet. 

* FORECAST...This river is expected to rise and crest at the flood stage of  
  23.0 feet late Friday morning and then recede to near 12.5 feet early 
  Sunday morning. It is then forecast to rise to near 16.5 feet Sunday 
  evening with continued rise expected.
* 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


$$
056 
WGUS86 KEKA 201235
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
435 AM PST FRI JAN 20 2017

...The Flood Warning continues 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.

The next statement will be issued today by 1000 AM PST or
as warranted by changing conditions.

&&

CAC045-210020-
/O.CON.KEKA.FL.W.0008.170120T1740Z-170121T0020Z/
/NVRC1.1.ER.170120T1740Z.170120T1800Z.170120T1820Z.NO/
435 AM PST FRI JAN 20 2017

The Flood Warning continues for
  The Navarro River At Navarro.

* At  4:15 AM Friday the stage was 14.9 feet. 
* Minor flooding is forecast.
* Flood Stage is 23.0 feet. 
* FORECAST...This river is expected to rise above flood stage of  
  and crest near 23.0 ft late this morning then forecast to fall
  12.5 ft early sunday morning then forecast to rise to near  14.0
  ft early monday 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


$$
009 
WGUS86 KEKA 201811
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
1011 AM PST FRI JAN 20 2017

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

Rain showers will continue today through the day Saturday. With the
next system Saturday night into early Sunday morning, expect another 1.5
inches of rain across the basin which will lead to a third rise on the
Navarro River which is then expected to crest near 23 feet.

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 4:00 PST January 20 2017 or as 
warranted by changing conditions.

&&

CAC045-210611-
/O.EXT.KEKA.FL.W.0008.000000T0000Z-170123T0310Z/
/NVRC1.1.ER.170122T1930Z.170122T2000Z.170122T2110Z.NO/
1011 AM PST FRI JAN 20 2017

...Flood Warning extended until Sunday evening...The Flood Warning 
continues for
  The Navarro River At Navarro.
* Until Sunday evening...or until the warning is cancelled.
* At  9:15 AM Friday the stage was 17.9 feet. 
* Minor flooding is forecast.
* Flood Stage is 23.0 feet. 
* FORECAST...This river is forecast to recede to near 14.0 ft. Then 
  expected to rise above flood stage of 23.0 ft near Sunday noon. 
  Then forecast to crest near 23.0 ft near Sunday noon. 
* 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


$$
981 
WGUS86 KEKA 202250
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
250 PM PST FRI JAN 20 2017

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

The river is cresting now and will start receding and continue
to recede through Saturday before rising again early Sunday morning. 

This is the last statement on this flood event unless warranted by changing conditions.

&&

CAC045-202320-
/O.CAN.KEKA.FL.W.0008.000000T0000Z-170123T0609Z/
/NVRC1.1.ER.170122T1653Z.170122T2000Z.170123T0009Z.NO/
250 PM PST FRI JAN 20 2017

The Flood Warning is cancelled for
  The Navarro River At Navarro.
* At  2:15 PM Friday the stage was 19.2 feet. 
* Flood Stage is 23.0 feet. 
* FORECAST...This river is forecast to recede to near 15.0 ft 
  late Saturday night.
  
 &&

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, 6:11 PM PSTHazardous Seas WarningEKA9 hr
Jan 19, 1:39 AM PSTSpecial Weather StatementEKAHumboldt51 min
Jan 19, 2:02 AM PSTSpecial Weather StatementEKAHumboldt43 min
Jan 19, 2:30 AM PSTGale WarningEKA25 hr
Jan 19, 2:30 AM PSTSmall Craft AdvisoryEKA19 hr
Jan 19, 4:44 AM PSTWinter Storm WatchEKATrinity9 hr
Jan 19, 4:44 AM PSTWinter Weather AdvisoryEKATrinity5 hr
Jan 19, 4:44 AM PSTWinter Weather AdvisoryEKADel Norte, Humboldt, Mendocino, Trinity56 hr
Jan 19, 8:57 AM PSTRiver Flood WatchEKAMendocino6 hr
Jan 19, 11:55 AM PSTHigh Surf WarningEKADel Norte, Humboldt, Mendocino52 hr
Jan 19, 2:00 PM PSTWinter Storm WarningEKATrinity22 hr
Jan 19, 2:39 PM PSTWind AdvisoryEKADel Norte, Humboldt, Mendocino15 hr
Jan 19, 3:21 PM PSTHazardous Seas WarningEKA51 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.