Alert archive / Arkansas / Flash Flood Warnings in 2021

Flash Flood Warning 52, NWS Little Rock, AR

June 6, 2021Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jun 6, 2021, 4:12 AM CDT for Polk County, Scott County, Arkansas. It was in force for 4 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
Jun 6, 2021, 4:12 AM CDT (09:12 UTC)
Expired
Jun 6, 2021, 8:10 AM CDT
In force
4 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 69 km from the middle of the area, began a volume at 09:17 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

Springfield, MO (KSGF), launched 00:00Z, 9.2 hours before the alert went out and 247 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, Springfield, MO at 00:00Z on 2021-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 249 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, Springfield, MO at 00:00Z on 2021-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
249 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
-36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

399 
WGUS54 KLZK 060912
FFWLZK
ARC113-127-061215-
/O.NEW.KLZK.FF.W.0052.210606T0912Z-210606T1210Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Little Rock AR
412 AM CDT Sun Jun 6 2021

The National Weather Service in Little Rock has issued a

* Flash Flood Warning for...
  Northeastern Polk County in western Arkansas...
  South Central Scott County in western Arkansas...

* Until 710 AM CDT.

* At 412 AM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2.5 and 3.5 inches of rain have fallen. Flash flooding is ongoing 
  or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar and automated gauges.

  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...
  Mena, Waldron, Mena Intermountain Airport, Polk County 
  Fairgrounds, Acorn, Y City, Ink, Boles, Board Camp, Nunley, 
  Needmore, Cherry Hill in Polk County, Dallas and Winfield.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3484 9423 3490 9418 3494 9408 3486 9402
      3472 9399 3457 9398 3449 9402 3446 9418
      3449 9425 3457 9427 3469 9425

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

232
2 follow-up statements
065 
WGUS74 KLZK 061001
FFSLZK

Flash Flood Statement
National Weather Service Little Rock AR
501 AM CDT Sun Jun 6 2021

ARC113-127-061215-
/O.CON.KLZK.FF.W.0052.000000T0000Z-210606T1210Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Polk AR-Scott AR-
501 AM CDT Sun Jun 6 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 710 AM CDT THIS 
MORNING FOR NORTHEASTERN POLK AND SOUTH CENTRAL SCOTT COUNTIES...

At 458 AM CDT, Doppler radar and automated rain gauges indicated 
that heavy rain was falling across the warned area. Between 3 to 4 
inches of rain have already fallen over southern central Scott 
county and northern central Polk county, and flash flooding is 
likely ongoing.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Doppler radar and automated gauges.

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...
  Mena, Waldron, Mena Intermountain Airport, Polk County 
  Fairgrounds, Acorn, Y City, Ink, Boles, Board Camp, Nunley, 
  Needmore, Cherry Hill in Polk County, Dallas and Winfield.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3484 9423 3490 9418 3494 9408 3486 9402
      3472 9399 3457 9398 3449 9402 3446 9418
      3449 9425 3457 9427 3469 9425

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

232
891 
WGUS54 KLZK 061123
FFWLZK
ARC113-127-061315-
/O.EXT.KLZK.FF.W.0052.000000T0000Z-210606T1310Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Little Rock AR
623 AM CDT Sun Jun 6 2021

The National Weather Service in Little Rock has extended the

* Flash Flood Warning for...
  Northeastern Polk County in western Arkansas...
  South Central Scott County in western Arkansas...

* Until 810 AM CDT.

* At 621 AM CDT, Doppler radar and automated rain gauges indicated 
  heavy rain falling across the warned area. Between 3.5 and 4.5 
  inches of rain have fallen. Flash flooding is likely ongoing over 
  the warned area.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Doppler radar and automated gauges.

  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...
  Mena, Waldron, Mena Intermountain Airport, Polk County 
  Fairgrounds, Acorn, Y City, Ink, Boles, Board Camp, Nunley, 
  Needmore, Cherry Hill in Polk County, Dallas and Winfield.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Please report flooding to your local law enforcement agency when you 
can do so safely.

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 3484 9423 3490 9418 3494 9408 3486 9402
      3472 9399 3457 9398 3449 9402 3446 9418
      3449 9425 3457 9427 3469 9425

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

232

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 6:05 AM CDTFlash Flood WarningLZKMontgomery, Pike, Polk3 hr
Jun 6, 6:51 AM CDTFlash Flood WarningLZKJohnson, Logan, Yell3 hr
Jun 6, 2:59 PM CDTSpecial Weather StatementLZKPolk46 min
Jun 6, 5:59 PM CDTSpecial Weather StatementLZKPulaski46 min
Jun 6, 6:14 PM CDTFlash Flood WarningLZKPulaski, Saline113 min
Jun 6, 6:24 PM CDTFlash Flood WarningLZKJefferson, Lonoke98 min

Nearby

Flash Flood Warnings in Arkansas, 2021Every 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.