Flash Flood Warning 2, NWS Sacramento, CA

Issued

Mar 5, 2016, 7:53 PM PST (03:53 UTC)

Expired

Mar 6, 2016, 1:45 AM PST

In force

6 hr

Issued by

NWS Sacramento, CA

Area

Storm-based polygon

Flood severity

None

Counties Colusa County, CA, Lake County, CA, Yolo County, CA

The Sacramento radar (KDAX), 83 km from the middle of the area, began a volume at 03:55 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.

178 
WGUS56 KSTO 060353
FFWSTO
CAC011-033-113-060945-
/O.NEW.KSTO.FF.W.0002.160306T0353Z-160306T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
753 PM PST SAT MAR 5 2016

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE VALLEY...JERUSALEM...ROCKY FIRE BURN
  AREAS IN...
  SOUTHWESTERN COLUSA COUNTY IN CENTRAL CALIFORNIA...
  SOUTHEASTERN LAKE COUNTY IN CENTRAL CALIFORNIA...
  NORTHWESTERN YOLO COUNTY IN CENTRAL CALIFORNIA...

* UNTIL 145 AM PST

* AT 747 PM PST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  THAT HEAVY RAIN WAS FALLING OVER THE AREA. AROUND 1.00 INCHES OF
  RAIN HAS FALLEN DURING THE PAST 3 HOURS AND UP TO 2.00 INCHES
  DURING THE PAST 6 HOURS OVER THE BURN SCARS. A HEAVY BAND OF RAIN
  IS CURRENTLY MOVING OVER THE BURN SCARS AND IS EXPECTED TO PERSIST
  FOR THE NEXT FEW HOURS. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* PERSONS TRAVELING IN THE VALLEY FIRE BURN AREA ESPECIALLY AROUND
  HIGHWAY 175, BOTTLE ROCK ROAD, LOCH LOMOND ROAD, SEIGLER CANYON
  ROAD, BIG CANYON ROAD, BUTTS CANYON ROAD AND OTHER LOCAL ROADS
  WITHIN AND IN CLOSE PROXIMITY TO THE BURN AREA SHOULD BE ALERT FOR
  PROBABLE ROAD PROBLEMS DUE TO FLOODING, ROCK AND DEBRIS FLOWS.
  LARGE PORTIONS OF THESE ROUTES ARE LOCATED IN THE SEVERELY BURNED
  AREAS OF THE VALLEY FIRE. RIVERS AND CREEKS OF PARTICULAR CONCERN
  INCLUDES ANDERSON CREEK, BIG CANYON CREEK, DRY CREEK, HARBIN CREEK,
  PUTAH CREEK, BUTTS CREEK, COPSEY CREEK, SEIGLER CREEK AND KELSEY
  CREEK BASINS. SEVERELY BURNED AREAS HAVE LIMITED CAPACITY TO ABSORB
  LARGE AMOUNTS OF RAINFALL, LEADING TO INCREASED RUNOFF.

* THE SEVERELY BURNED AREAS ARE OF PARTICULAR CONCERN. THIS INCLUDES
  THE ROCKY, DAVIS, CACHE, BEAR, SODA, HUNTING, ETICUERA, AND JERICHO
  CREEK BASINS. THESE BURNED AREAS ABSORB LESS RAINFALL, LEADING TO
  ENHANCED RUNOFF. THOSE TRAVELING ALONG HIGHWAY 16, HIGHWAY 20,
  MORGAN VALLEY, BERRYESSA-KNOXVILLE ROAD, JERUSALEM GRADE, BUTTS
  CANYON AND OTHER ROADS IN THE BURN AREA SHOULD BE ALERT FOR
  PROBABLE ROAD PROBLEMS DUE TO FLOODING, ROCK AND DEBRIS FLOWS.
  USERS OF THE CACHE CREEK NATURAL AREA AND THE KNOXVILLE RECREATION
  AREA SHOULD BE ALERT FOR FLOODING, ROCK AND DEBRIS FLOWS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. RESIDENTS AND PERSONS TRAVELING OR
WORKING WITHIN THE FIRE BURN AREA NEED TO BE ALERT FOR THE POTENTIAL
OF MUD AND DEBRIS FLOWS. THESE FLOWS COULD BLOCK OR IMPACT AREA
ROADWAYS, HILL SIDES, AND LOCAL STREAMS AND CREEKS.  IF YOU OBSERVE
MOVEMENT OF SOILS, DEBRIS OR LARGE AMOUNTS OF WATER YOU SHOULD MOVE
TO HIGHER GROUND IMMEDIATELY.  DO NOT TRY TO CROSS FLOODED ROADWAYS
OR CREEKS.

A FLASH FLOOD WARNING FOR A BURN AREA MEANS THAT FLASH FLOODING,
DEBRIS FLOWS AND/OR ROCK SLIDES ARE LIKELY OR ALREADY OCCURRING.  IF
YOU ARE IN OR NEAR THE WARNED AREA, YOU SHOULD SEEK A SAFE LOCATION
IMMEDIATELY.  YOUR LIFE MAY DEPEND ON HOW QUICKLY YOU REACT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3891 12269 3888 12259 3904 12256 3901 12233
      3883 12235 3887 12240 3881 12237 3880 12241
      3872 12245 3869 12249 3868 12263 3871 12265
      3871 12269 3883 12278

$$

CS

451 
WGUS76 KSTO 060946
FFSSTO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
146 AM PST SUN MAR 6 2016

CAC011-033-113-060956-
/O.EXP.KSTO.FF.W.0002.000000T0000Z-160306T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLUSA CA-LAKE CA-YOLO CA-
146 AM PST SUN MAR 6 2016

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN COLUSA...SOUTHEASTERN
LAKE AND NORTHWESTERN YOLO COUNTIES HAS EXPIRED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 3891 12269 3888 12259 3904 12256 3901 12233
      3883 12235 3887 12240 3881 12237 3880 12241
      3872 12245 3869 12249 3868 12263 3871 12265
      3871 12269 3883 12278

$$

TGD

Flash Flood Warnings in California, 2016Every flash flood warning in 2016

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.