Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 12, NWS Jackson, MS

February 18, 2012Forrest County, Lamar County, Marion County, Mississippi

NWS Jackson, MS issued this flash flood warning at Feb 18, 2012, 11:40 AM CST for Forrest County, Lamar County, Marion County, Mississippi. It was in force for 4 hr. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 18, 2012, 11:40 AM CST (17:40 UTC)
Expired: Feb 18, 2012, 3:30 PM CST
In force: 4 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Forrest County, MS, Lamar County, MS, Marion County, MS

What was reported inside it

Time	Report	Where	Remark
Feb 18, 1:00 PM CST	FLASH FLOOD	Columbia, MS	STREETS WERE BEGINNING TO FLOOD IN COLUMBIA. HUNT ROAD IN THE KOKOMO COMMUNITY IS WASHED OUT AND IS BEING CLOSED.
Feb 18, 1:30 PM CST	FLASH FLOOD	Columbia, MS	WATER WAS ENTERING ONE HOME AND ONE SHOP ON OWENS STREET IN COLUMBIA.
Feb 18, 3:20 PM CST	FLASH FLOOD	11 Sw West Hattiesburg, MS	WATER WAS REPORTED OVER PURVIS OLOH RD
Feb 18, 3:20 PM CST	FLASH FLOOD	3 Wnw Hattiesburg, MS	WATER OVER A BRIDGE ON WESTOVER DR IN WEST HATTIESBURG
Feb 18, 3:20 PM CST	FLASH FLOOD	4 Sw Sumrall, MS	FLOODING WAS REPORTED ALONG ROCKY BRANCH RD
Feb 18, 3:20 PM CST	FLASH FLOOD	5 Wsw West Hattiesburg, MS	WATER WAS REPORTED OVER CAMBROOKE RD
Feb 18, 3:30 PM CST	FLASH FLOOD	3 Sse Kokomo, MS	WATER WAS FLOWING OVER KNOXO COLUMBIA RD
Feb 18, 3:30 PM CST	FLASH FLOOD	Columbia, MS	SEVERAL ROADS REMAIN UNDERWATER ACROSS MARION COUNTY. AT LEAST TWO ROADS HAVE BEEN DAMAGED OR WASHED OUT. ROAD CONDITIONS ARE GENERALLY IMPROVING WITHIN THE COLUMBIA CITY LIMITS.

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.7 hours before the alert went out and 97 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

650 
WGUS54 KJAN 181740
FFWJAN
MSC035-073-091-182130-
/O.NEW.KJAN.FF.W.0012.120218T1740Z-120218T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1140 AM CST SAT FEB 18 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MARION COUNTY IN SOUTH CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...KOKOMO...SANDY HOOK...COLUMBIA...
  FORREST COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...PETAL...HATTIESBURG...
  LAMAR COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WEST HATTIESBURG...

* UNTIL 330 PM CST

* AT 1139 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM
  KOKOMO TO SUNRISE...OR ALONG A LINE EXTENDING FROM KOKOMO TO 7     
  MILES SOUTHEAST OF PETAL. THE STORMS WERE NEARLY STATIONARY.       
  ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE    
  INCHES...HAVE OCCURRED IN THE PAST HOUR.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MCLAURIN...ROCK HILL...BROOKLYN...MAXIE...BAXTERVILLE...PICKWICK...
  PINEBUR...PURVIS AND LUMBERTON

WAVE OF MODERATE TO VERY HEAVY RAINFALL WILL CONTINUE OVER THE 
WARNED AREA FOR THE NEXT THREE TO SIX HOURS...WITH AN ADDITIONAL TWO 
TO FOUR INCHES OF RAINFALL POSSIBLE.

RAINFALL AMOUNTS FROM TWO TO FOUR INCHES IN A HOUR CAN CAUSE FLOODING
IN AND AROUND THE WESTERN PORTIONS OF HATTIESBURG IN NORTHEAST LAMAR
COUNTY. SOME OF THE ROADS THAT FLOOD WITH THIS AMOUNT OF RAINFALL
INCLUDE SAM RAYBURN ROAD...CLEARANCE RAY DRIVE...RUBY CIRCLE AND
RAYBURN PLACE. IN ADDITION TO MANY OTHER LOCATIONS ALONG MIXON CREEK
BEHIND TURTLE CREEK MALL.

ADDITIONALLY...STREET FLOODING HAS BEEN REPORTED IN THE CITY OF 
HATTIESBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3100 8935 3101 8942 3098 8943 3098 8947
      3101 8951 3100 8983 3107 8984 3107 8992
      3113 8994 3113 9001 3124 9004 3139 9004
      3139 8982 3143 8982 3144 8915 3091 8914
      3091 8934

$$


7

3 follow-up statements

047 
WGUS74 KJAN 181912
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
112 PM CST SAT FEB 18 2012

MSC035-073-091-182130-
/O.CON.KJAN.FF.W.0012.000000T0000Z-120218T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION MS-LAMAR MS-FORREST MS-
112 PM CST SAT FEB 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR
FORREST...LAMAR AND MARION COUNTIES...

AT 112 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT THUNDERSTORMS PRODUCING MODERATE TO HEAVY RAIN OVER THE 
WARNED AREA. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE 
TO THREE INCHES...HAVE OCCURRED IN THE PAST HOUR.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
EASTABUCHIE...MACEDONIA...RAWLS SPRINGS...MORGANTOWN...HOLLY
SPRINGS...GOSS...BUNKER HILL...IMPROVE...WEST HATTIESBURG...
SUMRALL...HATTIESBURG AND COLUMBIA

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT 
THREE TO SIX HOURS. WITH AN ADDITIONAL TWO TO FOUR INCHES POSSIBLE. 
SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DRIFT ACROSS THE AREA. 
ROADS HAVE BEEN WASHED OUT AND CLOSED IN THE KOKOMO COMMUNITY. 
STREET FLOODING WAS ALSO REPORTED IN HATTIESBURG. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3100 8935 3101 8942 3098 8943 3098 8947
      3101 8951 3100 8983 3107 8984 3107 8992
      3113 8994 3113 9001 3124 9004 3139 9004
      3139 8982 3143 8982 3144 8915 3091 8914
      3091 8934

$$


7

743 
WGUS74 KJAN 182013
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
213 PM CST SAT FEB 18 2012

MSC035-073-091-182130-
/O.CON.KJAN.FF.W.0012.000000T0000Z-120218T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION MS-LAMAR MS-FORREST MS-
213 PM CST SAT FEB 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR
FORREST...LAMAR AND MARION COUNTIES...

AT 207 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT AN AREA OF RAIN PRODUCING MODERATE TO VERY HEAVY RAIN OVER 
THE WARNED AREA. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF 
AN INCH...HAVE OCCURRED IN THE PAST HOUR.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
EASTABUCHIE...MACEDONIA...RAWLS SPRINGS...SUNRISE...MCLAURIN...
MORGANTOWN...KOKOMO...HOLLY SPRINGS...GOSS...BUNKER HILL...IMPROVE...
PICKWICK...WEST HATTIESBURG...SUMRALL...PURVIS...PETAL...HATTIESBURG
AND COLUMBIA

MODERATE TO HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR 
THE NEXT THREE TO SIX HOURS...WITH AN ADDITIONAL ONE TO THREE INCHES 
POSSIBLE.

FLOODING HAS BEEN REPORTED IN COLUMBIA...WHERE A BUSINESS AND HOME 
WERE FLOODED. RAPID RUNOFF AND FLOODING WILL CONTINUE OVER THE AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3100 8935 3101 8942 3098 8943 3098 8947
      3101 8951 3100 8983 3107 8984 3107 8992
      3113 8994 3113 9001 3124 9004 3139 9004
      3139 8982 3143 8982 3144 8915 3091 8914
      3091 8934

$$


7

449 
WGUS74 KJAN 182041
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
241 PM CST SAT FEB 18 2012

MSC035-073-091-182130-
/O.CON.KJAN.FF.W.0012.000000T0000Z-120218T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION MS-LAMAR MS-FORREST MS-
241 PM CST SAT FEB 18 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR
FORREST...LAMAR AND MARION COUNTIES...

AT 239 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
DETECT HEAVY RAIN ACROSS THE WARNED AREA. ESTIMATED RADAR RAINFALL 
AMOUNTS...ON THE ORDER OF ONE TO TWO INCHES...HAVE OCCURRED IN THE 
PAST THREE HOURS. WATER WAS ENTERING A HOME AND A BUSINESS IN 
DOWNTOWN COLUMBIA...AND HUNT ROAD IN KOKOMO WAS WASHED OUT.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
EASTABUCHIE...MACEDONIA...RAWLS SPRINGS...SUNRISE...MCLAURIN...
MORGANTOWN...KOKOMO...HOLLY SPRINGS...GOSS...BUNKER HILL...IMPROVE...
PICKWICK...WEST HATTIESBURG...SUMRALL...PURVIS...PETAL...HATTIESBURG
AND COLUMBIA

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT 
TWO HOURS...WITH AN ADDITIONAL ONE INCH POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF URBAN
AREAS...INCLUDING HIGHWAYS...STREETS AND UNDERPASSES. IN ADDITION
OTHER LOW LYING AND OTHER POOR DRAINAGE AREAS INCLUDING SEWERS...
DITCHES AND CULVERTS MAY ALSO OVERFLOW.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS
MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3100 8935 3101 8942 3098 8943 3098 8947
      3101 8951 3100 8983 3107 8984 3107 8992
      3113 8994 3113 9001 3124 9004 3139 9004
      3139 8982 3143 8982 3144 8915 3091 8914
      3091 8934

$$

BK

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 18, 12:44 PM CST	Severe Thunderstorm Warning	JAN	Forrest	46 min
Feb 18, 1:21 PM CST	Flash Flood Warning	JAN	Clarke, Lauderdale	114 min
Feb 18, 1:49 PM CST	Special Weather Statement	JAN	Jones	66 min
Feb 18, 1:50 PM CST	Special Weather Statement	JAN	Adams, Jefferson	25 min
Feb 18, 3:02 PM CST	River Flood Warning	JAN	Copiah, Simpson	5 days
Feb 18, 3:02 PM CST	River Flood Warning	JAN	Lawrence	5 days
Feb 18, 3:02 PM CST	River Flood Warning	JAN	Marion	4 days
Feb 18, 3:28 PM CST	Flash Flood Warning	JAN	Covington, Forrest, Jefferson Davis, Jones, Lamar, Marion	3 hr

Nearby

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

Sources

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.