Alert archive / Arkansas / Flash Flood Warnings in 2017

Flash Flood Warning 72, NWS Memphis, TN

August 31, 2017Crittenden County, Cross County, Poinsett County, Arkansas

NWS Memphis, TN issued this flash flood warning at Aug 31, 2017, 6:45 AM CDT for Crittenden County, Cross County, Poinsett County, Arkansas. It was in force for 16 hr. 4 reports 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
Aug 31, 2017, 6:45 AM CDT (11:45 UTC)
Expired
Aug 31, 2017, 10:45 PM CDT
In force
16 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Crittenden County, AR, Cross County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 81 km from the middle of the area, began a volume at 11:45 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

TimeReportWhereRemark
Aug 31, 8:10 AM CDTHEAVY RAIN 42 E Harrisburg, ARWATER OVER HIGHWAY 14.
Aug 31, 8:14 AM CDTHEAVY RAIN 32 E Harrisburg, ARWATER COMING OVER HIGHWAY 14 EAST OF HARRISBURG.
Aug 31, 9:00 AM CDTFLASH FLOODHarrisburg, ARSEVERAL ROADS WERE FLOODED IN THE HARRISBURG AREA.
Aug 31, 1:15 PM CDTFLASH FLOODHarrisburg, ARGRIFFIN STREET FLOODED.

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

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 11.8 hours before the alert went out and 104 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 2017-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 joules per kilogram.LCLEL10008507005003002001001 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 2017-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
52 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1026 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

881 
WGUS54 KMEG 311145
FFWMEG
ARC035-037-111-311545-
/O.NEW.KMEG.FF.W.0072.170831T1145Z-170831T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
645 AM CDT THU AUG 31 2017

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Poinsett County in eastern Arkansas...
  Northwestern Crittenden County in eastern Arkansas...
  Northern Cross County in eastern Arkansas...

* Until 1045 AM CDT

* At 644 AM CDT...Doppler Radar estimates 2 to 3 inches of rain has 
  occurred over the past 2 hours. Showers and thunderstorms will 
  produce an additional 2 to 3 inches of rain over the next four 
  hours.

* Some locations that will experience flooding include...
  Trumann, Marked Tree, Harrisburg, Lepanto, Tyronza, Cherry Valley,
  Hickory Ridge, Waldenburg, Fisher, Payneway, Hydrick, Wiley
  Crossing, Birdeye, Tulot, Deckerville, Supply, Weona Junction,
  Weona, Hatchie Coon and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$
6 follow-up statements
273 
WGUS74 KMEG 311337
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
837 AM CDT THU AUG 31 2017

ARC035-037-111-311545-
/O.CON.KMEG.FF.W.0072.000000T0000Z-170831T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Poinsett AR-Crittenden AR-Cross AR-
837 AM CDT THU AUG 31 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
POINSETT...NORTHWESTERN CRITTENDEN AND NORTHERN CROSS COUNTIES...

At 834 AM CDT, National Weather Service meteorologists detected 
heavy rain between Harrisburg and Jonesboro, and from south of 
Harrisburg to south of Hickory Ridge.

Radar estimates 4 to 6 inches of rain has occurred over Poinsett and 
northwestern Cross Counties since 6 AM. Water was reported over the 
road along Highway 14 near Harrisburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$

WOODALL
198 
WGUS54 KMEG 311535
FFWMEG
ARC035-037-111-311845-
/O.EXT.KMEG.FF.W.0072.000000T0000Z-170831T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
1035 AM CDT THU AUG 31 2017

The National Weather Service in Memphis has extended the

* Flash Flood Warning for...
  Poinsett County in eastern Arkansas...
  Northwestern Crittenden County in eastern Arkansas...
  Northern Cross County in eastern Arkansas...

* Until 145 PM CDT

* At 1034 AM CDT...Doppler Radar estimates 6 inches of rain has 
  fallen across much of the area. Showers and thunderstorms will 
  produce an additional 1 to 2 inches of rain over the next 3 hours.

* Some locations that will experience flooding include...
  Trumann, Marked Tree, Harrisburg, Lepanto, Tyronza, Cherry Valley,
  Hickory Ridge, Waldenburg, Fisher, Payneway, Hydrick, Wiley
  Crossing, Birdeye, Tulot, Deckerville, Supply, Weona Junction,
  Weona, Hatchie Coon and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$
393 
WGUS74 KMEG 311749
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
1249 PM CDT THU AUG 31 2017

ARC035-037-111-311845-
/O.CON.KMEG.FF.W.0072.000000T0000Z-170831T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Poinsett AR-Crittenden AR-Cross AR-
1249 PM CDT THU AUG 31 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
POINSETT...NORTHWESTERN CRITTENDEN AND NORTHERN CROSS COUNTIES...

At 1244 PM CDT, Doppler radar estimates as much as 9 inches of rain 
has fallen over parts of Poinsett and Cross counties. Showers and
thunderstorms could produce an additional inch over rain 
over the next hour.

Some locations that will experience flooding include...
Trumann, Marked Tree, Harrisburg, Lepanto, Tyronza, Cherry Valley,
Hickory Ridge, Waldenburg, Fisher, Payneway, Hydrick, Wiley Crossing,
Birdeye, Tulot, Deckerville, Supply, Weona Junction, Weona, Hatchie
Coon and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$
016 
WGUS54 KMEG 311839
FFWMEG
ARC035-037-111-312145-
/O.EXT.KMEG.FF.W.0072.000000T0000Z-170831T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
139 PM CDT THU AUG 31 2017

The National Weather Service in Memphis has extended the

* Flash Flood Warning for...
  Poinsett County in eastern Arkansas...
  Northwestern Crittenden County in eastern Arkansas...
  Northern Cross County in eastern Arkansas...

* Until 445 PM CDT

* At 137 PM CDT...Doppler radar estimates over 9 inches of rain has 
  fallen across parts of Poinsett and Cross counties. Showers and 
  thunderstorms are moving back into the area and will produce an 
  additional 1 to 3 inches of rain over the next 3 hours.

* Some locations that will experience flooding include...
  Trumann, Marked Tree, Harrisburg, Lepanto, Tyronza, Cherry Valley,
  Hickory Ridge, Waldenburg, Fisher, Payneway, Hydrick, Wiley
  Crossing, Birdeye, Tulot, Deckerville, Supply, Weona Junction,
  Weona, Hatchie Coon and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$
140 
WGUS54 KMEG 312135
FFWMEG
ARC035-037-111-010345-
/O.EXT.KMEG.FF.W.0072.000000T0000Z-170901T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
435 PM CDT THU AUG 31 2017

The National Weather Service in Memphis has extended the

* Flash Flood Warning for...
  Poinsett County in eastern Arkansas...
  Northwestern Crittenden County in eastern Arkansas...
  Northern Cross County in eastern Arkansas...

* Until 1045 PM CDT Thursday

* At 432 PM CDT...Doppler Radar estimates 8 to 10 inches of rain has 
  occurred across portions of Poinsett and Cross counties since 
  early this morning. Showers and thunderstorms will produce an 
  additional 2 to 4 inches of rain over the next 6 hours.

* Some locations that will experience flooding include...
  Trumann, Marked Tree, Harrisburg, Lepanto, Tyronza, Cherry Valley,
  Hickory Ridge, Waldenburg, Fisher, Payneway, Hydrick, Wiley
  Crossing, Birdeye, Tulot, Deckerville, Supply, Weona Junction,
  Weona, Hatchie Coon and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3558 9104 3570 9029 3539 9029 3529 9104

$$
551 
WGUS74 KMEG 010337
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
1037 PM CDT THU AUG 31 2017

ARC035-037-111-010346-
/O.EXP.KMEG.FF.W.0072.000000T0000Z-170901T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Poinsett AR-Crittenden AR-Cross AR-
1037 PM CDT THU AUG 31 2017

...THE FLASH FLOOD WARNING FOR POINSETT...NORTHWESTERN CRITTENDEN AND
NORTHERN CROSS COUNTIES WILL EXPIRE AT 1045 PM CDT...

The threat for heavy rain and flash flooding has diminished. Please 
continue to heed any remaining road closures.

LAT...LON 3558 9104 3570 9029 3539 9029 3529 9104

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 31, 8:22 AM CDTFlash Flood WarningMEGCraighead, Mississippi, Poinsett3 hr
Aug 31, 8:53 AM CDTFlash Flood WarningMEGCross3 hr
Aug 31, 10:10 AM CDTSpecial Weather StatementMEGLee35 min
Aug 31, 10:53 AM CDTFlash Flood WarningMEGClay3 hr
Aug 31, 11:55 AM CDTFlash Flood WarningMEGCross6 hr
Aug 31, 12:49 PM CDTTornado WarningMEGCrittenden41 min
Aug 31, 1:02 PM CDTFlash Flood WarningMEGLee, Phillips6 hr
Aug 31, 1:05 PM CDTTornado WarningMEGLee, St. Francis23 min
Aug 31, 1:24 PM CDTFlash Flood WarningMEGCrittenden3 hr
Aug 31, 2:47 PM CDTFlash Flood WarningMEGCrittenden, St. Francis3 hr
Aug 31, 3:15 PM CDTFlash Flood WarningMEGCrittenden3 hr
Aug 31, 3:19 PM CDTFlash Flood WarningMEGPhillips3 hr
Aug 31, 4:43 PM CDTFlash Flood WarningMEGCrittenden6 hr
Aug 31, 5:34 PM CDTFlash Flood WarningMEGCrittenden, Cross, St. Francis6 hr
Aug 31, 5:45 PM CDTFlash Flood WarningMEGCrittenden, Lee, Phillips, St. Francis6 hr

Nearby

Flash Flood Warnings in Arkansas, 2017Every flash flood warning in 2017

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.