Alert archive / Mississippi / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Jackson, MS

March 8, 2011Franklin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Mar 8, 2011, 5:17 PM CST for Franklin County, Mississippi. It was in force for 118 min. 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: Mar 8, 2011, 5:17 PM CST (23:17 UTC)
Expired: Mar 8, 2011, 7:15 PM CST
In force: 118 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

County Franklin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 111 km from the middle of the area, began a volume at 23:19 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
Mar 8, 6:20 PM CST	FLASH FLOOD	Little Springs, MS	SEVERAL LOW LYING RDS WERE UNDER WATER ACROSS THE SE/E PORTION 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 12:00Z, 11.3 hours before the alert went out and 109 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: 629 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 281 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.

999 
WGUS54 KJAN 082317
FFWJAN
MSC037-090115-
/O.NEW.KJAN.FF.W.0013.110308T2317Z-110309T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
517 PM CST TUE MAR 8 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI...

* UNTIL 715 PM CST

* AT 516 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER EASTERN FRANKLIN
  COUNTY. 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
  MCCALL CREEK AND NEW HOPE

VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT
TWO HOURS WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE. THIS WILL
LIKELY PRODUCE FLASH FLOODING OF ROADS AND CREEKS.

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 3161 9083 3161 9063 3152 9063 3137 9063
      3136 9085

$$

AEG

1 follow-up statement

025 
WGUS74 KJAN 090025
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
625 PM CST TUE MAR 8 2011

MSC037-090115-
/O.CON.KJAN.FF.W.0013.000000T0000Z-110309T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FRANKLIN MS-
625 PM CST TUE MAR 8 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CST FOR
EASTERN FRANKLIN COUNTY...

AT 624 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER EASTERN FRANKLIN
COUNTY. THE STORMS WERE MOVING NORTHEAST...BUT WERE REDEVELOPING OVER
THE SAME AREA. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF 
THREE INCHES...HAVE OCCURRED IN THE PAST TWO HOURS OVER EASTERN 
FRANKLIN COUNTY SOUTH OF BUDE AND MCCALL CREEK.

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...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS...COUNTY ROADS AND FARMLAND ALONG BANKS.

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 3161 9083 3161 9063 3152 9063 3137 9063
      3136 9085

$$

AEG

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 6:02 PM CST	Flash Flood Watch	JAN	Adams, Attala, Carroll, Choctaw, Claiborne, Clarke and 34 more	41 hr
Mar 8, 8:12 AM CST	River Flood Warning	JAN	Clay	3 days
Mar 8, 9:57 AM CST	River Flood Warning	JAN	Attala, Holmes	8 days
Mar 8, 10:24 AM CST	River Flood Warning	JAN	Jones	6 days
Mar 8, 2:10 PM CST	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	50 min
Mar 8, 2:32 PM CST	Severe Thunderstorm Warning	JAN	Copiah	28 min
Mar 8, 3:52 PM CST	River Flood Warning	JAN	Clarke	4 days
Mar 8, 4:12 PM CST	Flash Flood Warning	JAN	Jefferson Davis, Lamar, Lawrence, Marion	3 hr
Mar 8, 5:36 PM CST	Severe Thunderstorm Warning	JAN	Forrest, Lamar, Marion	54 min

Nearby

Flash Flood Warnings in Mississippi, 2011 Every flash flood warning in 2011

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.