Alert archive / Arkansas / Flash Flood Warnings in 2021

Flash Flood Warning 47, NWS Little Rock, AR

May 27, 2021Conway County, Pope County, Arkansas

NWS Little Rock, AR issued this flash flood warning at May 27, 2021, 10:58 PM CDT for Conway County, Pope County, Arkansas. It was in force for 92 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 27, 2021, 10:58 PM CDT (03:58 UTC)
Expired
May 28, 2021, 12:30 AM CDT
In force
92 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Conway County, AR, Pope County, AR

The radar

The Little Rock radar (KLZK), 83 km from the middle of the area, began a volume at 04:00 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

Little Rock, AR (KLZK), launched 00:00Z, 4.0 hours before the alert went out and 279 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, Little Rock, AR at 00:00Z on 2021-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 697 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, Little Rock, AR at 00:00Z on 2021-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.193958Sfc1 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
697 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1539 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

859 
WGUS54 KLZK 280358
FFWLZK
ARC029-115-280530-
/O.NEW.KLZK.FF.W.0047.210528T0358Z-210528T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Little Rock AR
1058 PM CDT Thu May 27 2021

The National Weather Service in Little Rock has issued a

* Flash Flood Warning for...
  North Central Conway County in central Arkansas...
  Central Pope County in central Arkansas...

* Until 1230 AM CDT.

* At 1057 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen over the past 1 to 2 hours. 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...
  Russellville, Atkins, London, Jerusalem, Hattieville, Taral, St. 
  Vincent, Blick, Lanty, Lake Dardanelle, Oak Grove in Pope County, 
  Economy, Caglesville, Moreland, Gum Log, Macedonia in Conway 
  County and Wonderview.

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.

&&

LAT...LON 3536 9319 3539 9306 3540 9296 3540 9283
      3540 9273 3538 9265 3533 9266 3529 9271
      3527 9287 3526 9299 3526 9308 3527 9317
      3528 9322

FLASH FLOOD...RADAR INDICATED

$$

62
2 follow-up statements
592 
WGUS74 KLZK 280437
FFSLZK

Flash Flood Statement
National Weather Service Little Rock AR
1137 PM CDT Thu May 27 2021

ARC029-115-280530-
/O.CON.KLZK.FF.W.0047.000000T0000Z-210528T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Conway AR-Pope AR-
1137 PM CDT Thu May 27 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FRIDAY 
FOR NORTH CENTRAL CONWAY AND CENTRAL POPE COUNTIES...

At 1136 PM CDT, Doppler radar indicated heavy rain across the warned 
area. Between 1 and 3 inches of rain had fallen over the past 2 to 3 
hours. While the heaviest rainfall has ended...it will take some 
time for this water to run off. As a result...the threat for flash 
flooding will continue.

HAZARD...Flash flooding caused by heavy rain.

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...
  Russellville, Atkins, London, Jerusalem, Hattieville, Taral, St. 
  Vincent, Blick, Lanty, Lake Dardanelle, Oak Grove in Pope County, 
  Economy, Caglesville, Moreland, Gum Log, Macedonia in Conway 
  County and Wonderview.

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.

&&

LAT...LON 3536 9319 3539 9306 3540 9296 3540 9283
      3540 9273 3538 9265 3533 9266 3529 9271
      3527 9287 3526 9299 3526 9308 3527 9317
      3528 9322

FLASH FLOOD...RADAR INDICATED

$$

62
536 
WGUS74 KLZK 280521
FFSLZK

Flash Flood Statement
National Weather Service Little Rock AR
1221 AM CDT Fri May 28 2021

ARC029-115-280531-
/O.EXP.KLZK.FF.W.0047.000000T0000Z-210528T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Conway AR-Pope AR-
1221 AM CDT Fri May 28 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1230 AM CDT EARLY THIS MORNING 
FOR NORTH CENTRAL CONWAY AND CENTRAL POPE COUNTIES...

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

LAT...LON 3536 9319 3539 9306 3540 9296 3540 9283
      3540 9273 3538 9265 3533 9266 3529 9271
      3527 9287 3526 9299 3526 9308 3527 9317
      3528 9322

$$

62

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:09 PM CDTSpecial Weather StatementLZKJackson51 min
May 27, 7:19 PM CDTSpecial Weather StatementLZKJohnson, Newton41 min
May 27, 7:51 PM CDTSpecial Weather StatementLZKJohnson, Pope39 min
May 27, 8:35 PM CDTRiver Flood WarningLZKPerry14 hr
May 27, 8:35 PM CDTSpecial Weather StatementLZKVan Buren40 min
May 27, 9:02 PM CDTSpecial Weather StatementLZKJohnson, Logan43 min
May 27, 9:10 PM CDTSevere Thunderstorm WarningLZKLogan, Montgomery, Polk, Scott50 min
May 27, 9:40 PM CDTSpecial Weather StatementLZKConway, Johnson, Pope50 min
May 27, 9:55 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike, Polk, Scott, Yell35 min
May 27, 10:30 PM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Montgomery, Pike, Polk45 min
May 27, 10:53 PM CDTSpecial Weather StatementLZKFaulkner, Perry37 min
May 27, 11:10 PM CDTSevere Thunderstorm WarningLZKClark, Hot Spring, Montgomery, Pike50 min
May 27, 11:55 PM CDTSpecial Weather StatementLZKClark, Hot Spring50 min
May 28, 12:43 AM CDTSpecial Weather StatementLZKCleveland, Dallas, Grant47 min
May 28, 1:26 AM CDTSpecial Weather StatementLZKMonroe49 min
May 28, 1:35 AM CDTSpecial Weather StatementLZKArkansas, Cleveland, Lincoln55 min
May 28, 5:47 PM CDTRiver Flood AdvisoryLZKIndependence, Jackson, Lawrence18 hr

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.