Alert archive / Mississippi / Flash Flood Warnings in 2012

Flash Flood Warning 141, NWS Jackson, MS

September 4, 2012Noxubee County, Oktibbeha County, Mississippi

NWS Jackson, MS issued this flash flood warning at Sep 4, 2012, 12:09 AM CDT for Noxubee County, Oktibbeha County, Mississippi. It was in force for 2 hr. 1 report 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: Sep 4, 2012, 12:09 AM CDT (05:09 UTC)
Expired: Sep 4, 2012, 2:15 AM CDT
In force: 2 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Noxubee County, MS, Oktibbeha County, MS

The radar

The Columbus AFB radar (KGWX), 86 km from the middle of the area, began a volume at 05:09 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.

What was reported inside it

Time	Report	Where	Remark
Sep 4, 12:40 AM CDT	FLASH FLOOD	10 Wsw Brooksville, MS	WATER WAS OVER A FEW ROADS IN THE WESTERN PART OF THE COUNTY.

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

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.2 hours before the alert went out and 159 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: 2932 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1077 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

024 
WGUS54 KJAN 040509
FFWJAN
MSC103-105-040715-
/O.NEW.KJAN.FF.W.0141.120904T0509Z-120904T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1209 AM CDT TUE SEP 4 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NOXUBEE COUNTY IN EAST CENTRAL MISSISSIPPI...
  OKTIBBEHA COUNTY IN NORTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF STARKVILLE...

* UNTIL 215 AM CDT

* AT 1209 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR MASHULAVILLE...OR 18
  MILES NORTHEAST OF PRESTON. THE STORMS WERE MOVING SOUTH AT 20 MPH.
  ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE
  INCHES...HAVE OCCURRED IN THE PAST TWO HOURS.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MACON...OKTOC...LONGVIEW AND CRAIG SPRINGS.

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

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 3293 8881 3328 8881 3331 8892 3352 8901
      3351 8884 3329 8867 3313 8847 3293 8840

$$

DL

2 follow-up statements

695 
WGUS74 KJAN 040614
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
114 AM CDT TUE SEP 4 2012

MSC105-040623-
/O.CAN.KJAN.FF.W.0141.000000T0000Z-120904T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OKTIBBEHA MS-
114 AM CDT TUE SEP 4 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR OKTIBBEHA COUNTY...

HEAVY RAINFALL HAS MOVED SOUTH OF OKTIBBEHA COUNTY.

LAT...LON 3324 8867 3314 8852 3293 8847 3293 8881
      3326 8881

$$

MSC103-040715-
/O.CON.KJAN.FF.W.0141.000000T0000Z-120904T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NOXUBEE MS-
114 AM CDT TUE SEP 4 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
WESTERN NOXUBEE COUNTY...

AT 113 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR MASHULAVILLE...OR
10 MILES NORTH OF PRESTON...MOVING SOUTH AT 20 MPH. ESTIMATED RADAR
RAINFALL AMOUNTS...ON THE ORDER OF THREE TO FIVE INCHES...HAVE
OCCURRED IN THE PAST THREE HOURS.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GHOLSON

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
HOUR...WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE.

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 3324 8867 3314 8852 3293 8847 3293 8881
      3326 8881

$$

DL

016 
WGUS74 KJAN 040720
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
220 AM CDT TUE SEP 4 2012

MSC103-040726-
/O.EXP.KJAN.FF.W.0141.000000T0000Z-120904T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NOXUBEE MS-
220 AM CDT TUE SEP 4 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR WESTERN NOXUBEE COUNTY...

AT 215 AM CDT...RADAR INDICATED A FEW LINGERING SHOWERS OVER PORTIONS
OF THE COUNTY MOVING SOUTHEAST AT 15 MPH. ESTIMATED RAINFALL TOTALS 
OF NEARLY 5 INCHES HAVE OCCURRED JUST WEST AND NORTHWEST OF THE 
MASHULAVILLE AREA SINCE 10 PM MONDAY...ESPECIALLY AFFECTING THE WOLF 
CREEK AREA ALONG THE WINSTON COUNTY LINE.

PLEASE REPORT ANY FLOODING TO YOUR LOCAL LAW ENFORCEMENT OR 
EMERGENCY MANAGEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER 
SERVICE.

LAT...LON 3324 8867 3314 8852 3293 8847 3293 8881
      3326 8881

$$

40

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 10:24 PM CDT	Special Weather Statement	JAN	Lowndes, Noxubee, Oktibbeha	31 min
Sep 3, 11:01 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	44 min
Sep 3, 11:25 PM CDT	Tornado Warning	JAN	Noxubee	35 min
Sep 3, 11:53 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	37 min
Sep 4, 12:31 AM CDT	Special Weather Statement	JAN	Noxubee	29 min
Sep 4, 12:41 AM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	49 min
Sep 4, 1:33 AM CDT	Special Weather Statement	JAN	Noxubee	32 min
Sep 4, 2:41 PM CDT	Special Weather Statement	JAN	Jones	29 min
Sep 4, 3:14 PM CDT	Special Weather Statement	JAN	Jones	31 min
Sep 4, 3:27 PM CDT	Flash Flood Warning	JAN	Jones	2 hr
Sep 4, 3:45 PM CDT	Severe Thunderstorm Warning	JAN	Jones	45 min
Sep 4, 4:38 PM CDT	Special Weather Statement	JAN	Forrest	42 min
Sep 4, 5:22 PM CDT	Special Weather Statement	JAN	Forrest	58 min
Sep 4, 5:34 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Jones	41 min
Sep 4, 5:41 PM CDT	Severe Thunderstorm Warning	JAN	Jones	34 min
Sep 4, 6:09 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	51 min
Sep 4, 6:36 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson, Smith	39 min
Sep 4, 6:43 PM CDT	Special Weather Statement	JAN	Covington	32 min

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; radar from the NEXRAD Level II archive.