Alert archive / California / River Flood Warnings in 2016

River Flood Warning 5, NWS Eureka, CA

January 17, 2016Humboldt County, California

NWS Eureka, CA issued this river flood warning at Jan 17, 2016, 8:51 PM PST for Humboldt County, California. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jan 17, 2016, 8:51 PM PST (04:51 UTC)
Expired
Jan 18, 2016, 5:00 AM PST
In force
8 hr
Issued by
NWS Eureka, CA
Area
Storm-based polygon
Flood severity
Minor

County Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 48 km from the middle of the area, began a volume at 04:55 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 Mad River near Arcata (ARCC1). The gauge peaked at 22.64 ft at Jan 17, 2016, 10:00 PM PST.

actionminormoderate1015202501/1801/19
Action stage
15 ft
Minor stage
22 ft
Moderate stage
24 ft
Major stage
28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11481000, 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.

115 
WGUS46 KEKA 180451
FLWEKA
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA, CA
851 PM PST SUN JAN 17 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...

  Mad River Near Arcata  affecting Humboldt County

While rains have tapered this evening the rivers continue to respond 
to those of earlier today. This has caused the Mad River near Arcata 
rise rapidly and exceed flood stage. The crest is forecast to be short
lived and drop below flood stage in the very early morning hours of 
Monday.

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 5 AM Monday or as 
warranted by changing conditions.

&&

CAC023-181251-
/O.NEW.KEKA.FL.W.0005.160118T0451Z-160118T1300Z/
/ARCC1.1.ER.160118T0420Z.160118T0600Z.160118T0700Z.NO/
851 PM PST SUN JAN 17 2016

The National Weather Service in Eureka has issued a 

* FLOOD WARNING For 
  The Mad River Near Arcata .
* until early Monday morning...or until the warning is cancelled.
* At 8:00 PM Sunday the stage was 21.8 feet.
* Minor flooding is forecast.
* Forecast to crest around 22.5 feet around 10 pm Sunday night.
* Flood stage is 22.0 feet.
* Impacts...at 23.0 feet...Significant flooding of portions of Mad 
  River Beach Road and adjacent farmlands is likely. May cause water 
  to flow across roads to tyee city. High tides and strong, onshore 
  winds can aggravate flood impacts.
* Flood history...This crest compares to a previous crest of 22.6 feet
  on Jan 12 1959.

 &&

LAT...LON 4086 12407 4088 12415 4095 12413 4096 12405


$$
1 follow-up statement
855 
WGUS86 KEKA 181100
FLSEKA
FLOOD STATEMENT
NATIONAL WEATHER SERVICE EUREKA, CA
300 AM PST MON JAN 18 2016

...The flood warning continues for the following rivers in 
California...
 
  Navarro River At Navarro affecting Mendocino County 
  Eel River At Fernbridge affecting Humboldt County 

...The flood warning is cancelled for the following rivers in 
California...
 
  RUSSIAN RIVER near Hopland affecting Mendocino County
  Mad River Near Arcata  affecting Humboldt County

The weather system responsible for the heavy rain has moved out of
the area. The smaller rivers have crested and the larger rivers will
crest today.

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 AM or as 
warranted by changing conditions.

&&

CAC045-181840-
/O.EXT.KEKA.FL.W.0004.000000T0000Z-160118T1840Z/
/NVRC1.1.ER.160118T0649Z.160118T0945Z.160118T1240Z.NO/
300 AM PST MON JAN 18 2016

THE FLOOD WARNING CONTINUES FOR
  THE Navarro River At Navarro.
* until this morning...or until the warning is cancelled.
* AT  2:15 AM Monday the stage was 24.6 feet. 

* The river will crest around 24.7 feet early this morning and
  slowly diminish through today.
* FLOOD STAGE IS 23.0 feet. 
* 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


$$

CAC023-182300-
/O.EXT.KEKA.FL.W.0001.000000T0000Z-160119T0415Z/
/FRNC1.1.ER.160118T0719Z.160118T1400Z.160118T2215Z.NO/
300 AM PST MON JAN 18 2016

...FLOOD WARNING EXTENDED UNTIL this evening...THE FLOOD WARNING 
CONTINUES FOR
  THE Eel River At Fernbridge.
* until this evening...or until the warning is cancelled.
* AT  2:15 AM Monday THE stage WAS 20.6 feet.

* The river will crest around 21.2 feet this morning and
  then recede slowly this afternoon and tonight.
* FLOOD STAGE IS 20.0 feet. 
* IMPACTS...At 22.0 feet...The western half of the Eel Delta may be 
  completely flooded, especially if at or above this level for an 
  extended period of time. This includes areas northwest of Loleta 
  and the western portion of Cannibal Island Road.

 &&

LAT...LON 4058 12412 4063 12421 4069 12427 4058 12435
      4052 12418                  

$$

CAC045-181130-
/O.CAN.KEKA.FL.W.0003.000000T0000Z-160118T2125Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
300 AM PST MON JAN 18 2016

THE FLOOD WARNING IS CANCELLED FOR
  THE RUSSIAN RIVER near Hopland.
* AT  2:00 AM Monday THE stage WAS 17.5 feet. 

* FLOOD STAGE IS 21.0 feet. 
* IMPACTS...At 20.0 feet...MINOR FLOODING OF CROPLAND ALONG THE LEFT 
  BANK NEAR HOPLAND.
* The river is near its crest and will slowly recede through today.
 
 &&

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

$$

CAC023-181130-
/O.CAN.KEKA.FL.W.0005.000000T0000Z-160118T1300Z/
/ARCC1.1.ER.160118T0345Z.160118T0500Z.160118T0725Z.NO/
300 AM PST MON JAN 18 2016

THE FLOOD WARNING IS CANCELLED FOR
  THE Mad River Near Arcata .
* AT  2:00 AM Monday THE stage WAS 20.5 feet. 
* The river has crested and fell below flood stage at 11:25 pm
  sunday.

* FLOOD STAGE IS 22.0 feet. 
* IMPACTS...At 21.0 feet...Flooding of the mad river Beach Road is 
  likely. Water may be flowing over roads to tyee city. Flooding will
  be enhanced if the time of the crest is coincident with high tides 
  and strong onshore winds.

 &&

LAT...LON 4086 12407 4088 12415 4095 12413 4096 12405


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 9:07 PM PSTSmall Craft AdvisoryEKA30 hr
Jan 17, 9:07 PM PSTHazardous Seas WarningEKA6 hr
Jan 18, 3:22 AM PSTGale WatchEKA11 hr
Jan 18, 5:30 AM PSTRiver Flood AdvisoryEKAMendocino4 hr
Jan 18, 2:47 PM PSTGale WarningEKA20 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.