Alert archive / Arkansas / Flash Flood Warnings in 2021

Flash Flood Warning 4, NWS Little Rock, AR

February 28, 20215 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Feb 28, 2021, 6:12 PM CST for 5 counties in Arkansas. It was in force for 3 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: Feb 28, 2021, 6:12 PM CST (00:12 UTC)
Expired: Feb 28, 2021, 9:00 PM CST
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Clark County, AR, Cleveland County, AR, Dallas County, AR, Grant County, AR, Pike County, AR

The radar

The Little Rock radar (KLZK), 120 km from the middle of the area, began a volume at 00:16 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

Shreveport, LA (KSHV), launched 00:00Z, 0.2 hours before the alert went out and 177 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.

774 
WGUS54 KLZK 010012
FFWLZK
ARC019-025-039-053-109-010215-
/O.NEW.KLZK.FF.W.0004.210301T0012Z-210301T0210Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Little Rock has issued a

* Flash Flood Warning for...
  Southern Grant County in central Arkansas...
  Northwestern Cleveland County in southeastern Arkansas...
  Southern Clark County in southwestern Arkansas...
  Dallas County in southwestern Arkansas...
  Southeastern Pike County in southwestern Arkansas...

* Until 810 PM CST.

* At 611 PM CST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. 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...
  Arkadelphia, Gurdon, Sparkman, Carthage, Okolona, Whelen Springs, 
  Beirne, Richwoods, Gum Springs in Clark County, Lamont, Antoine, 
  Ain, Manning, Dalark, Pine Grove, Ouachita, Griffithtown, Willow, 
  Joan and Vaden.

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 3396 9356 3403 9347 3413 9294 3415 9290
      3415 9249 3422 9228 3399 9222 3389 9246
      3382 9282 3382 9293 3378 9302 3378 9310
      3382 9314 3379 9318 3384 9329 3390 9330
      3396 9338

FLASH FLOOD...RADAR INDICATED

$$

Cooper

3 follow-up statements

932 
WGUS74 KLZK 010134
FFSLZK

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

ARC109-010144-
/O.CAN.KLZK.FF.W.0004.000000T0000Z-210301T0210Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pike AR-
734 PM CST Sun Feb 28 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN PIKE COUNTY...

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 3382 9293 3378 9302 3379 9307 3378 9310
      3382 9314 3379 9318 3383 9322 3383 9324
      3384 9328 3385 9329 3390 9330 3415 9291
      3415 9268 3415 9249 3422 9228 3399 9222
      3389 9246 3382 9282

$$

ARC019-025-039-053-010215-
/O.CON.KLZK.FF.W.0004.000000T0000Z-210301T0210Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark AR-Cleveland AR-Dallas AR-Grant AR-
734 PM CST Sun Feb 28 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 810 PM CST THIS 
EVENING FOR SOUTHERN GRANT, NORTHWESTERN CLEVELAND, SOUTHEASTERN 
CLARK AND DALLAS COUNTIES...

At 733 PM CST, thunderstorms producing heavy rain continued across 
the warned area. Between 2 and 4 inches of rain have fallen. 
According to local law enforcement, flash flooding is occurring with 
several roads underwater.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement.

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...
  Gurdon, Sparkman, Carthage, Whelen Springs, Beirne, Richwoods, 
  Lamont, Ain, Manning, Princeton, Pine Grove, Tulip, Willow, 
  Dalark, Ouachita, Ramsey, Griffithtown, Vaden, Joan and Bunn.

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 3382 9293 3378 9302 3379 9307 3378 9310
      3382 9314 3379 9318 3383 9322 3383 9324
      3384 9328 3385 9329 3390 9330 3415 9291
      3415 9268 3415 9249 3422 9228 3399 9222
      3389 9246 3382 9282

FLASH FLOOD...OBSERVED

$$

Cooper

128 
WGUS54 KLZK 010159
FFWLZK
ARC019-025-039-053-010300-
/O.EXT.KLZK.FF.W.0004.000000T0000Z-210301T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Little Rock has extended the

* Flash Flood Warning for...
  Southern Grant County in central Arkansas...
  Northwestern Cleveland County in southeastern Arkansas...
  Southeastern Clark County in southwestern Arkansas...
  Dallas County in southwestern Arkansas...

* Until 900 PM CST.

* At 759 PM CST, local law enforcement reported thunderstorms 
  producing heavy rain across the warned area. Between 2 and 4 
  inches of rain have fallen. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement.

  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...
  Gurdon, Sparkman, Carthage, Whelen Springs, Beirne, Richwoods, 
  Lamont, Ain, Manning, Princeton, Pine Grove, Tulip, Willow, 
  Dalark, Ouachita, Ramsey, Griffithtown, Vaden, Joan and Bunn.

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 3382 9293 3378 9302 3379 9307 3378 9310
      3382 9314 3379 9318 3383 9322 3383 9324
      3384 9328 3385 9329 3390 9330 3415 9291
      3415 9268 3415 9249 3422 9228 3399 9222
      3389 9246 3382 9282

FLASH FLOOD...OBSERVED

$$

Cooper

866 
WGUS74 KLZK 010257 RRB
FFSLZK

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

ARC019-025-039-053-010307-
/O.EXP.KLZK.FF.W.0004.000000T0000Z-210301T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark AR-Cleveland AR-Dallas AR-Grant AR-
857 PM CST Sun Feb 28 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 9 PM CST THIS EVENING FOR 
SOUTHERN GRANT, NORTHWESTERN CLEVELAND, SOUTHEASTERN CLARK AND 
DALLAS COUNTIES...

While light to occasionally moderate rain continues, 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 3382 9293 3378 9302 3379 9307 3378 9310
      3382 9314 3379 9318 3383 9322 3383 9324
      3384 9328 3385 9329 3390 9330 3415 9291
      3415 9268 3415 9249 3422 9228 3399 9222
      3389 9246 3382 9282

$$

Cooper

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 8:43 PM CST	Flash Flood Warning	LZK	Calhoun, Ouachita	77 min
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.