Flash Flood Warning 15, NWS Shreveport, LA

Issued

Mar 20, 2012, 10:50 PM CDT (03:50 UTC)

Expired

Mar 21, 2012, 8:45 AM CDT

In force

10 hr

Issued by

NWS Shreveport, LA

Area

Storm-based polygon

Flood severity

None

Counties Columbia County, AR, Union County, AR, Bossier Parish, LA, Claiborne Parish, LA, Webster Parish, LA

The Shreveport radar (KSHV), 67 km from the middle of the area, began a volume at 03:52 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

566 
WGUS54 KSHV 210350
FFWSHV
ARC027-139-LAC015-027-119-210945-
/O.NEW.KSHV.FF.W.0015.120321T0350Z-120321T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1050 PM CDT TUE MAR 20 2012

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOSSIER PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF BOSSIER CITY...
  CLAIBORNE PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF HOMER...
  WEBSTER PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITIES OF...SPRINGHILL...MINDEN...
  WESTERN UNION COUNTY IN SOUTH CENTRAL ARKANSAS...
  THIS INCLUDES THE CITIES OF...SMACKOVER...NORPHLET...JUNCTION
  CITY...EL DORADO...
  COLUMBIA COUNTY IN SOUTHWEST ARKANSAS...
  THIS INCLUDES THE CITIES OF...WALDO...MCNEIL...MAGNOLIA...

* UNTIL 445 AM CDT

* AT 1050 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  VERY HEAVY RAIN FROM SHOWERS AND EMBEDDED THUNDERSTORMS OVER THE WARNED 
  AREA. SURFACE REPORTS AND RADAR ESTIMATES INDICATE THAT WIDESPREAD RAINFALL 
  TOTALS OF TWO AND A HALF TO NEARLY FOUR INCHES OF RAIN HAS FALLEN ACROSS
  THE WARNED AREAS THIS AFTERNOON AND EVENING. ADDITIONAL SHOWERS AND EMBEDDED 
  THUNDERSTORMS WILL SPREAD NORTH ACROSS THE AREA FROM NORTHCENTRAL LOUISIANA 
  OVERNIGHT...WHICH WILL FURTHER ENHANCE THE FLASH FLOOD THREAT. THIS IS AN 
  EXTREMELY DANGEROUS SITUATION! TRAVEL ACROSS THE WARNED AREAS IS STRONGLY 
  DISCOURAGED TONIGHT! 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SHONGALOO...SAREPTA...PLAIN DEALING...HAYNESVILLE...CULLEN...
  WESSON...WELCOME...VILLAGE...TAYLOR...SMITHLAND...MOUNT HOLLY...
  MACEDONIA...LISBON...EMERSON...BUSSEY AND ATLANTA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR INCHES ARE POSSIBLE IN THE WARNED 
AREA THROUGH 445 AM.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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.

&&

LAT...LON 3301 9266 3301 9273 3277 9272 3275 9283
      3259 9288 3258 9317 3246 9315 3240 9342
      3225 9341 3224 9347 3225 9346 3224 9349
      3254 9377 3254 9376 3301 9382 3302 9349
      3326 9348 3345 9336 3337 9259

$$

15

698 
WGUS54 KSHV 210942
FFWSHV
ARC027-139-LAC015-027-119-211345-
/O.EXT.KSHV.FF.W.0015.000000T0000Z-120321T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
442 AM CDT WED MAR 21 2012

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  BOSSIER PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF BOSSIER CITY...
  CLAIBORNE PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF HOMER...
  WEBSTER PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITIES OF...SPRINGHILL...MINDEN...
  WESTERN UNION COUNTY IN SOUTH CENTRAL ARKANSAS...
  THIS INCLUDES THE CITIES OF...SMACKOVER...NORPHLET...JUNCTION
  CITY...EL DORADO...
  COLUMBIA COUNTY IN SOUTHWEST ARKANSAS...
  THIS INCLUDES THE CITIES OF...WALDO...MCNEIL...MAGNOLIA...

* UNTIL 845 AM CDT

* AT 438 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED 
TO DETECT WIDESPREAD MODERATE TO HEAVY RAIN FROM SHOWER AND ISOLATED 
THUNDERSTORM ACTIVITY MOVING INTO THE WARNED AREA. LOCAL LAW 
ENFORCEMENT OFFICIALS HAVE RELAYED REPORTS OF FLASH FLOODING OVER 
THE WARNED AREA. SURFACE REPORTS AND RADAR ESTIMATES INDICATE THAT 
RAINFALL AMOUNTS OF FOUR TO SIX INCHES HAS FALLEN ACROSS THE WARNED 
AREA. SOME ROADS ARE ALREADY FLOODED AND CLOSED... AND ADDITIONAL 
HEAVY RAINFALL WILL CONTINUE TO PRODUCE MORE FLASH FLOODING. THIS IS 
AN EXTREMELY DANGEROUS SITUATION! TRAVEL IS STRONGLY DISCOURAGED 
THIS MORNING!

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SHONGALOO...SAREPTA...PLAIN DEALING...HAYNESVILLE...CULLEN...COTTON
  VALLEY...WESSON...WELCOME...VILLAGE...TAYLOR...SMITHLAND...MOUNT
  HOLLY...MACEDONIA...LISBON...EMERSON...BUSSEY AND ATLANTA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3301 9266 3301 9273 3277 9272 3275 9283
      3259 9288 3258 9317 3246 9315 3240 9342
      3225 9341 3224 9347 3225 9346 3224 9349
      3254 9377 3254 9376 3301 9382 3302 9349
      3326 9348 3345 9336 3337 9259

$$

ELEVEN

Flash Flood Warnings in Louisiana, 2012Flash Flood Warnings in Arkansas, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.