Alert archive / Arkansas / Flash Flood Warnings in 2021

Flash Flood Warning 8, NWS Little Rock, AR

February 28, 2021Calhoun County, Ouachita County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Feb 28, 2021, 8:43 PM CST for Calhoun County, Ouachita County, Arkansas. It was in force for 77 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: Feb 28, 2021, 8:43 PM CST (02:43 UTC)
Expired: Feb 28, 2021, 10:00 PM CST
In force: 77 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Calhoun County, AR, Ouachita County, AR

The radar

The Shreveport radar (KSHV), 155 km from the middle of the area, began a volume at 02:42 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
Feb 28, 9:15 PM CST	HEAVY RAIN 3	Stephens, AR	ESTIMATED 3 INCHES OF RAIN FELL IN A 2 HOUR PERIOD, ENDING AROUND 915 PM.

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

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.7 hours before the alert went out and 146 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: 1289 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 203 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 7.9

Open this sounding in Storm Lab

The text

As transmitted.

282 
WGUS54 KLZK 010243
FFWLZK
ARC013-103-010400-
/O.NEW.KLZK.FF.W.0008.210301T0243Z-210301T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Little Rock AR
843 PM CST Sun Feb 28 2021

The National Weather Service in Little Rock has issued a

* Flash Flood Warning for...
  Calhoun County in southwestern Arkansas...
  Southern Ouachita County in southwestern Arkansas...

* Until 1000 PM CST.

* At 843 PM CST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Camden, Hampton, Stephens, Harrell, Louann, Highland Industrial 
  Park, Cullendale, Hampton Municipal Airport, Ellisville, Tinsman, 
  Artesian, Delhi, Locust Bayou, Millers Bluff, Cross Roads in 
  Ouachita County, Standard Umpstead, Frenchport, Woodberry, 
  Kirkland and Elliot.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3349 9311 3371 9234 3350 9231 3339 9236
      3329 9243 3329 9247 3332 9246 3333 9248
      3332 9252 3336 9253 3336 9259 3336 9266
      3339 9276 3336 9280 3338 9312

FLASH FLOOD...RADAR INDICATED

$$

Cooper

1 follow-up statement

263 
WGUS74 KLZK 010401
FFSLZK

Flash Flood Statement
National Weather Service Little Rock AR
1001 PM CST Sun Feb 28 2021

ARC013-103-010411-
/O.EXP.KLZK.FF.W.0008.000000T0000Z-210301T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Calhoun AR-Ouachita AR-
1001 PM CST Sun Feb 28 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR CALHOUN AND SOUTHERN OUACHITA 
COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 600 AM CST Monday for portions 
of central Arkansas...eastern Arkansas...southeast Arkansas and 
southwest Arkansas.

LAT...LON 3349 9311 3371 9234 3350 9231 3339 9236
      3329 9243 3329 9247 3332 9246 3333 9248
      3332 9252 3336 9253 3336 9259 3336 9266
      3339 9276 3336 9280 3338 9312

$$

232

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 6:12 PM CST	Flash Flood Warning	LZK	Clark, Cleveland, Dallas, Grant, Pike	3 hr
Feb 28, 6:18 PM CST	Flash Flood Warning	LZK	Arkansas, Grant, Jefferson, Lonoke, Prairie, Pulaski	3 hr
Feb 28, 6:28 PM CST	Flash Flood Warning	LZK	Arkansas, Cleveland, Jefferson, Lincoln, Monroe, Prairie	3 hr
Feb 28, 6:29 PM CST	Special Weather Statement	LZK	Arkansas	46 min
Feb 28, 7:13 PM CST	Special Weather Statement	LZK	Cleveland, Dallas	47 min
Feb 28, 7:32 PM CST	River Flood Advisory	LZK	Saline	65 min
Feb 28, 7:33 PM CST	River Flood Advisory	LZK	Clark, Hot Spring	65 min
Feb 28, 7:46 PM CST	Flash Flood Warning	LZK	Arkansas, Calhoun, Cleveland, Dallas, Desha, Lincoln and 1 more	2 hr
Feb 28, 8:37 PM CST	River Flood Warning	LZK	Saline	14 hr
Feb 28, 8:38 PM CST	River Flood Warning	LZK	Clark, Hot Spring	37 hr
Feb 28, 10:07 PM CST	Flash Flood Warning	LZK	Bradley, Calhoun, Cleveland, Drew	106 min
Mar 1, 10:05 AM CST	River Flood Advisory	LZK	White, Woodruff	24 hr
Mar 1, 10:05 AM CST	River Flood Advisory	LZK	Arkansas, Monroe	47 hr
Mar 1, 10:18 AM CST	River Flood Advisory	LZK	Independence, Jackson, Lawrence	23 hr

Nearby

Flash Flood Warnings in Arkansas, 2021 Every flash flood warning in 2021

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.