Alert archive / California / River Flood Advisories in 2017

River Flood Advisory 9, NWS Eureka, CA

February 20, 2017Mendocino County, California

NWS Eureka, CA issued this river flood advisory at Feb 20, 2017, 10:30 PM PST for Mendocino County, California. It was in force for 36 hr.

The area

The outline as issued.

The facts

Issued
Feb 20, 2017, 10:30 PM PST (06:30 UTC)
Expired
Feb 22, 2017, 10:22 AM PST
In force
36 hr
Issued by
NWS Eureka, CA
Area
Storm-based polygon

County Mendocino County, CA

The radar

The Beale AFB radar (KBBX), 140 km from the middle of the area, began a volume at 06:33 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).

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.

861 
WGUS86 KEKA 210630
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
1030 PM PST MON FEB 20 2017

...The National Weather Service in Eureka has issued a Flood Advisory
for the Russian River...

  Russian River near Hopland affecting Mendocino County 

Abundant rainfall associated with an atmospheric river will cause
water levels on the Russian River near Hopland to rise to advisory
levels. 

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 AM Tuesday, February 21, 2017
or as warranted by changing conditions.

&&

CAC045-211830-
/O.NEW.KEKA.FL.Y.0009.170221T0630Z-170222T1822Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1030 PM PST MON FEB 20 2017

The National Weather Service in Eureka has issued a
* Flood Advisory for the Russian River near Hopland until Wednesday
  morning.
* At 10:00 PM Monday the stage Was 16.0 feet.
* Flood Stage is 21.0 feet.
* Advisory Stage is 15 feet.
* FORECAST...This river is Forecast to recede to near 4.5 FT early 
  Saturday morning.
* IMPACTS...Minor flooding of highway 175 is expected at the
  approaches to the Russian River bridge and also of crop land on the
  right bank of the river.  

 &&

LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
      3909 12313 3894 12304       

$$
3 follow-up statements
423 
WGUS86 KEKA 211056
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
256 AM PST TUE FEB 21 2017

...
...The Flood Advisory continues for the Russian River...
  Russian River near Hopland affecting Mendocino County 

The current weather is dominated by a storm system crossing the region to our north. Showers and isolated thunderstorms will continue to develop today, with westerly up-slope flow aiding in precipitation development. Although most of the precipitation will be light, rivers will continue to rise through the afternoon, due to the widespread rainfall coverage and amounts that occurred since yesterday.


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 Tuesday, February 21st, or as 
warranted by changing conditions.

&&

CAC045-212256-
/O.CON.KEKA.FL.Y.0009.000000T0000Z-170222T1822Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
256 AM PST TUE FEB 21 2017

The Flood Advisory continues for
  The Russian River near Hopland.
* until Wednesday morning.
* At  2:00 AM Tuesday the stage Was 17.3 feet.
* Flood Stage is 21.0 feet.
* FORECAST...This river is Forecast to fluctuate near 17.5 FT thru 
  early this morning then forecast to recede to near 4.5 FT early 
  Saturday morning then forecast to fluctuate near 4.5 FT thru early 
  Saturday morning.

 &&

LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
      3909 12313 3894 12304       

$$
410 
WGUS86 KEKA 211709
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
909 AM PST TUE FEB 21 2017

...
...The Flood Advisory continues for the Russian River...
  Russian River near Hopland affecting Mendocino County 

Occasional showers today. The Russian River will continue to recede.


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 400 PM February 21st or as 
warranted by changing conditions.

&&

CAC045-220000-
/O.CON.KEKA.FL.Y.0009.000000T0000Z-170222T0000Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
909 AM PST TUE FEB 21 2017

The Flood Advisory continues for
  The Russian River near Hopland.
* until this afternoon.
* At  8:00 AM Tuesday the stage Was 16.1 feet.
* Flood Stage is 21.0 feet.
* FORECAST...This river is forecast to recede to near 15.0 FT late 
  this morning. Then forecast to fall to near 11.0 FT late this 
  evening.

 &&

LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
      3909 12313 3894 12304       

$$
407 
WGUS86 KEKA 212246
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
246 PM PST TUE FEB 21 2017

...
...The Flood Advisory is cancelled for the
Russian River...
 
  Russian River near Hopland affecting Mendocino County

This is the last statement for the Russian River for this rain
event unless warranted by changing conditions.

&&

CAC045-212316-
/O.CAN.KEKA.FL.Y.0009.000000T0000Z-170222T0000Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
246 PM PST TUE FEB 21 2017

The Flood Advisory is cancelled for
  The Russian River near Hopland.
* At  2:00 PM Tuesday the stage was 14.0 feet.
* Flood Stage is 21.0 feet.
* FORECAST...This river is forecast to continue to recede to near 8.0 FT
  near noon Wednesday. Then forecast to crest near 11.5 FT late tomorrow 
  evening. Then forecast to recede to near 10.0 FT early Sunday 
  morning.

 &&

LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
      3909 12313 3894 12304       

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 7:37 PM PSTRiver Flood WarningEKAMendocino19 hr
Feb 21, 2:30 AM PSTSmall Craft AdvisoryEKA25 hr

Nearby

River Flood Advisories in California, 2017Every river flood advisory 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.