Alert archive / Arkansas / Flash Flood Warnings in 2016

Flash Flood Warning 72, NWS Jackson, MS

March 11, 2016Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this flash flood warning at Mar 11, 2016, 12:14 PM CST for Ashley County, Chicot County, Arkansas. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 11, 2016, 12:14 PM CST (18:14 UTC)
Expired: Mar 11, 2016, 4:45 PM CST
In force: 5 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Ashley County, AR, Chicot County, AR

The radar

The Jackson/Brandon,MS radar (KDGX), 175 km from the middle of the area, began a volume at 18:16 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, 6.2 hours before the alert went out and 165 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: 47 J/kg
Mixed-layer CIN: -183 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -284 m²/s²
0-3 km storm-relative helicity: -406 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

107 
WGUS54 KJAN 111814
FFWJAN
ARC003-017-112245-
/O.NEW.KJAN.FF.W.0072.160311T1814Z-160311T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1214 PM CST FRI MAR 11 2016

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHICOT COUNTY IN SOUTHEASTERN ARKANSAS...
  ASHLEY COUNTY IN SOUTHEASTERN ARKANSAS...

* UNTIL 445 PM CST

* AT 1213 PM CST...EMERGENCY MANAGEMENT REPORTED EXTENSIVE FLASH
  FLOODING ACROSS THE WARNED AREA. FLASH FLOODING IS OCCURRING WITH
  NUMEROUS ROADS AND HIGHWAYS STILL FLOODED AND CLOSED.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CROSSETT...HAMBURG...LAKE VILLAGE...DERMOTT...EUDORA...WILMOT...
  NORTH CROSSETT...WEST CROSSETT...PORTLAND...MONTROSE...PARKDALE...
  FOUNTAIN HILL...BERLIN...MCMILLAN CORNER...OLD MILO...SNYDER AND
  CHICOT JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3331 9198 3340 9199 3339 9146 3356 9145
      3352 9132 3356 9123 3344 9123 3346 9112
      3339 9119 3338 9117 3345 9106 3333 9114
      3324 9110 3328 9104 3314 9109 3313 9120
      3306 9112 3300 9117 3303 9210 3319 9214

$$

CME

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 11:24 AM CST	River Flood Advisory	JAN	Chicot, Desha	36 hr
Mar 11, 11:24 AM CST	River Flood Advisory	JAN	Chicot	36 hr
Mar 11, 5:55 PM CST	Areal Flood Warning	JAN	Ashley, Chicot	24 hr

Nearby

Flash Flood Warnings in Arkansas, 2016 Every flash flood warning 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.