Alert archive / Mississippi / Flash Flood Watches in 2016

Flash Flood Watch 2, NWS Jackson, MS

March 13, 2016Bolivar County, Sunflower County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this flash flood watch at Mar 13, 2016, 3:08 PM CDT for Bolivar County, Sunflower County, Washington County, Mississippi; Ashley County, Chicot County, Arkansas. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Mar 13, 2016, 3:08 PM CDT (20:08 UTC)
Expired
Mar 14, 2016, 1:00 AM CDT
In force
10 hr
Issued by
NWS Jackson, MS
Flood severity
None

Counties Ashley County, AR, Chicot County, AR, Bolivar County, MS, Sunflower County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 165 km from the middle of the area, began a volume at 20:09 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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.1 hours before the alert went out and 155 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2016-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2016-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
4 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

031 
WGUS64 KJAN 132008
FFAJAN

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE JACKSON MS
308 PM CDT SUN MAR 13 2016

...FLASH FLOOD WATCH IN EFFECT THIS AFTERNOON AND EVENING FOR EXTREME
SOUTHEAST ARKANSAS AND PORTIONS OF NORTHWEST MISSISSIPPI...

ARZ074-075-MSZ018-019-034-140415-
/O.NEW.KJAN.FF.A.0002.160313T2008Z-160314T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHLEY-CHICOT-BOLIVAR-SUNFLOWER-WASHINGTON-
INCLUDING THE CITIES OF...CROSSETT...NORTH CROSSETT...HAMBURG...
WEST CROSSETT...DERMOTT...LAKE VILLAGE...EUDORA...CLEVELAND...
INDIANOLA...RULEVILLE...GREENVILLE
308 PM CDT SUN MAR 13 2016

...FLASH FLOOD WATCH IN EFFECT UNTIL 1 AM CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF SOUTHEAST ARKANSAS AND 
  NORTHWEST MISSISSIPPI...INCLUDING THE FOLLOWING AREAS...IN 
  SOUTHEAST ARKANSAS...ASHLEY AND CHICOT. IN NORTHWEST 
  MISSISSIPPI...BOLIVAR...SUNFLOWER AND WASHINGTON. 

* UNTIL 1 AM CDT MONDAY

* THUNDERSTORMS WITH HEAVY RAINFALL ARE EXPECTED OVER THE AREA LATE
  THIS AFTERNOON AND EVENING. FLOODING REMAINS OVER PORTIONS OF THE
  DELTA REGION DUE THE RECENT TORRENTIAL RAINFALL. MOST RIVERS ACROSS
  THE AREA ARE IN FLOOD AS WELL. AN ADDITIONAL 1 INCH WITH LOCALLY
  HIGHER AMOUNTS IN A SHORT PERIOD OF TIME WILL LEAD TO ADDITIONAL
  FLASH FLOODING PROBLEMS.

* ROADS MAY BECOME IMPASSABLE. IF ENCOUNTERING FLOODED ROADWAYS...
  REMEMBER TO TURN AROUND DON'T DROWN. WATER COULD ENTER STRUCTURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 6:16 PM CSTSpecial Weather StatementJANHolmes, Humphreys, Issaquena, Sharkey, Yazoo44 min
Mar 12, 8:53 PM CSTAreal Flood WarningJANClaiborne, Issaquena, Sharkey, Warren, Washington9 hr
Mar 12, 9:25 PM CSTAreal Flood WarningJANBolivar, Sunflower, Washington9 hr
Mar 12, 10:05 PM CSTDense Fog AdvisoryJANClarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 9 more8 hr
Mar 13, 10:46 AM CDTRiver Flood AdvisoryJANBolivar, Washington36 hr
Mar 13, 10:46 AM CDTRiver Flood AdvisoryJANIssaquena, Washington36 hr

Nearby

Flash Flood Watches in Mississippi, 2016Flash Flood Watches in Arkansas, 2016Every flash flood watch in 2016

Sources

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.