Flash Flood Warning 14, NWS San Francisco Bay Area, CA

Issued

Dec 23, 2012, 4:43 PM PST (00:43 UTC)

Expired

Dec 23, 2012, 6:45 PM PST

In force

2 hr

Issued by

NWS San Francisco Bay Area, CA

Area

Storm-based polygon

Flood severity

None

County Santa Cruz County, CA

The San Francisco radar (KMUX), 18 km from the middle of the area, began a volume at 00:47 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.

898 
WGUS56 KMTR 240043
FFWMTR
CAC087-240245-
/O.NEW.KMTR.FF.W.0014.121224T0043Z-121224T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
443 PM PST SUN DEC 23 2012

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A

* FLASH FLOOD WARNING FOR...
  SANTA CRUZ COUNTY IN WESTERN CALIFORNIA...

* UNTIL 645 PM PST.

* AT 430 PM PST...THE SOQUEL CREEK STREAM GAGE IN SOQUEL AT BRIDGE   
  STREET IS REPORTING STAGES JUST BELOW FLOOD LEVELS FOR THE         
  DOWNTOWN VICINITY.  RAIN GAGES INDICATE RAIN RATES UP TO ONE       
  QUARTER INCH PER HOUR ACROSS THE BASIN. DOPPLER RADAR SHOWS        
  ANOTHER BAND OF HEAVY RAIN TO THE NORTH OF SANTA CRUZ COUNTY       
  MOVING SLOWLY SOUTH.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.

RUNOFF FROM HEAVY RAINFALL WILL CAUSE LOCALIZED FLOODING OF SMALL
CREEKS AND STREAMS AS WELL AS ROADWAYS...UNDERPASSES AND OTHER LOW
LYING SPOTS. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATER OR WATER
OF UNKNOWN DEPTH. TURN AROUND...DONT DROWN.

BE PARTICULARLY AWARE IN HILLY TERRAIN WHERE MANY LOW WATER 
CROSSINGS CAN QUICKLY BECOME KILLERS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

LAT...LON 3702 12196 3702 12191 3697 12193 3697 12196

$$

STRUDLEY/DYKEMA

276 
WGUS76 KMTR 240249
FFSMTR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
649 PM PST SUN DEC 23 2012

CAC087-240254-
/O.EXP.KMTR.FF.W.0014.000000T0000Z-121224T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ CA-
649 PM PST SUN DEC 23 2012

...THE FLASH FLOOD WARNING FOR THE SOQUEL CREEK IN SANTA CRUZ COUNTY 
HAS BEEN ALLOWED TO EXPIRE AT 645 PM PST...

AT 640 PM PST THE SOQUEL CREEK STREAM GAGE IN SOQUEL WAS MORE THAN A 
HALF FOOT BELOW FLOOD STAGE. THERE HAVE NOT BEEN ANY REPORTS OF 
SIGNIFICANT FLOODING ALONG THE SOQUEL CREEK. THEREFORE THE FLASH 
FLOOD WARNING FOR THE SOQUEL CREEK HAS BEEN ALLOWED TO EXPIRE AT 645 
PM PST. MODERATE RAIN CONTINUES TO FALL ACROSS THE BASIN AND SO 
PERSONS LIVING ALONG THE SOQUEL CREEK SHOULD BE ALERT FOR POSSIBLE 
RENEWED RISES OF WATER LEVELS. RAINFALL IS EXPECTED TO TAPER OFF IN 
THE NEXT HOUR.

LAT...LON 3702 12196 3702 12191 3697 12193 3697 12196

$$

DYKEMA

Flash Flood Warnings in California, 2012Every flash flood warning in 2012

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.