Alert archive / Arkansas / Flash Flood Warnings in 2012

Flash Flood Warning 13, NWS Little Rock, AR

June 12, 2012Garland County, Hot Spring County, Montgomery County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jun 12, 2012, 1:31 AM CDT for Garland County, Hot Spring County, Montgomery County, 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: Jun 12, 2012, 1:31 AM CDT (06:31 UTC)
Expired: Jun 12, 2012, 4:30 AM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Garland County, AR, Hot Spring County, AR, Montgomery County, AR

The radar

The Little Rock radar (KLZK), 113 km from the middle of the area, began a volume at 06:35 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, 6.5 hours before the alert went out and 228 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: 2755 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1712 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

671 
WGUS54 KLZK 120631
FFWLZK
ARC051-059-097-120930-
/O.NEW.KLZK.FF.W.0013.120612T0631Z-120612T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
131 AM CDT TUE JUN 12 2012

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MONTGOMERY COUNTY IN WESTERN ARKANSAS...
  SOUTHWESTERN GARLAND COUNTY IN CENTRAL ARKANSAS...
  WEST CENTRAL HOT SPRING COUNTY IN SOUTHWEST ARKANSAS...

* UNTIL 430 AM CDT

* AT 131 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF THUNDERSTORMS WITH VERY HEAVY RAINFALL ALONG A LINE
  EXTENDING FROM 3 MILES WEST OF GAP CREEK REC AREA TO 3 MILES SOUTH
  OF GAP CREEK REC AREA TO NEAR MEYERS. DOPPLER RADAR INDICATES 1 TO
  3 INCHES OF RAIN HAVE FALLEN OVER PARTS OF THE WARNED AREA IN THE
  PAST 2 HOURS WITH ADDITIONAL HEAVY RAIN EXPECTED. FLASH FLOODING IS
  LIKELY TO OCCUR. WHILE PRECIPITATION MAY TAPER OFF IN SOME AREAS
  DURING THE WARNING PERIOD...IT WILL TAKE SOME TIME FOR ANY HIGH
  WATER TO RUNOFF.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MT IDA...             ROCKWELL...           MEYERS...
  LOFTON...             GAP CREEK REC AREA... SUNSHINE...
  SILVER...             ROYAL...              POINT CEDAR...
  PEARCY...             HURRICANE GROVE...    HEMPWALLACE...
  CRYSTAL SPRINGS...    BONNERDALE...         WHEELER MTN...
  TWIN CREEK REC AREA...                     
  TOMPKINS BEND REC AREA...                   SWEETHOME...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 3461 9349 3456 9331 3447 9313 3433 9332
      3443 9355 3455 9371

$$

62

2 follow-up statements

447 
WGUS74 KLZK 120719
FFSLZK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
219 AM CDT TUE JUN 12 2012

ARC051-059-097-120930-
/O.CON.KLZK.FF.W.0013.000000T0000Z-120612T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARLAND AR-HOT SPRING AR-MONTGOMERY AR-
219 AM CDT TUE JUN 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MONTGOMERY...WEST CENTRAL HOT SPRING AND SOUTHWESTERN GARLAND
COUNTIES UNTIL 430 AM CDT...

* AT 218 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF THUNDERSTORMS WITH VERY HEAVY RAINFALL ALONG A LINE
  EXTENDING FROM 6 MILES EAST OF MT IDA TO 7 MILES SOUTH OF LAKE
  OUACHITA TO 9 MILES SOUTH OF LAKE OUACHITA. DOPPLER RADAR ESTIMATES
  3 TO AS MUCH AS 5 INCHES OF RAIN HAVE ALREADY FALLEN OVER PARTS OF
  THE WARNED AREA IN THE PAST 3 HOURS WITH ADDITIONAL HEAVY RAIN
  EXPECTED. FLASH FLOODING IS LIKELY TO OCCUR. WHILE PRECIPITATION
  MAY TAPER OFF IN SOME AREAS DURING THE WARNING PERIOD...IT WILL
  TAKE SOME TIME FOR ANY HIGH WATER TO RUNOFF.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MT IDA...             MEYERS...             LOFTON...
  GAP CREEK REC AREA... SUNSHINE...           SILVER...
  ROYAL...              POINT CEDAR...        PEARCY...
  HURRICANE GROVE...    HEMPWALLACE...        CRYSTAL SPRINGS...
  BONNERDALE...         WHEELER MTN...       
  TWIN CREEK REC AREA...                     
  TOMPKINS BEND REC AREA...                   SWEETHOME...
  ROBERTS LAKE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3461 9349 3456 9331 3447 9313 3433 9332
      3443 9355 3455 9371

$$

62

838 
WGUS74 KLZK 120822
FFSLZK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
322 AM CDT TUE JUN 12 2012

ARC051-059-097-120930-
/O.CON.KLZK.FF.W.0013.000000T0000Z-120612T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GARLAND AR-HOT SPRING AR-MONTGOMERY AR-
322 AM CDT TUE JUN 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MONTGOMERY...WEST CENTRAL HOT SPRING AND SOUTHWESTERN GARLAND
COUNTIES UNTIL 430 AM CDT...

* AT 320 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF HEAVY RAINFALL ALONG A LINE EXTENDING FROM MT IDA TO 7
  MILES SOUTH OF LAKE OUACHITA TO 10 MILES SOUTH OF LAKE OUACHITA.   
  DOPPLER RADAR ESTIMATES 3 TO OVER 5 INCHES OF RAIN HAVE FALLEN     
  OVER PARTS OF THE WARNED AREA IN THE PAST 3 HOURS. FLASH FLOODING  
  IS LIKELY. WHILE PRECIPITATION HAS BEGUN TO TAPER OFF IN SOME      
  AREAS...IT WILL TAKE SOME TIME FOR ANY HIGH WATER TO RUNOFF.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MT IDA...             MEYERS...             LOFTON...
  GAP CREEK REC AREA... SUNSHINE...           SILVER...
  ROYAL...              POINT CEDAR...        PEARCY...
  HURRICANE GROVE...    HEMPWALLACE...        CRYSTAL SPRINGS...
  BONNERDALE...         WHEELER MTN...       
  TWIN CREEK REC AREA...                     
  TOMPKINS BEND REC AREA...                   SWEETHOME...
  ROBERTS LAKE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3461 9349 3456 9331 3447 9313 3433 9332
      3443 9355 3455 9371

$$

62

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:39 PM CDT	Special Weather Statement	LZK	Cleveland	46 min
Jun 11, 7:48 PM CDT	Special Weather Statement	LZK	Drew	42 min
Jun 11, 9:28 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski	22 min
Jun 11, 9:52 PM CDT	Special Weather Statement	LZK	Pulaski	43 min
Jun 11, 10:46 PM CDT	Special Weather Statement	LZK	Pulaski	44 min
Jun 11, 11:08 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski, Saline	37 min
Jun 11, 11:33 PM CDT	Special Weather Statement	LZK	Polk	32 min
Jun 11, 11:45 PM CDT	Severe Thunderstorm Warning	LZK	Grant, Pulaski, Saline	45 min
Jun 11, 11:47 PM CDT	Special Weather Statement	LZK	Drew	43 min
Jun 11, 11:58 PM CDT	Special Weather Statement	LZK	Polk	32 min
Jun 12, 12:16 AM CDT	Special Weather Statement	LZK	Ouachita	29 min
Jun 12, 12:22 AM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	38 min
Jun 12, 12:33 AM CDT	Special Weather Statement	LZK	Saline	47 min
Jun 12, 12:57 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun	20 min
Jun 12, 1:08 AM CDT	Special Weather Statement	LZK	Montgomery	32 min
Jun 12, 1:23 AM CDT	Special Weather Statement	LZK	Saline	32 min
Jun 12, 1:44 AM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring, Montgomery	46 min
Jun 12, 2:22 AM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Clark, Dallas, Ouachita	38 min
Jun 12, 2:54 AM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Dallas, Ouachita	41 min
Jun 12, 2:56 AM CDT	Flash Flood Warning	LZK	Montgomery, Pike, Polk, Scott, Yell	4 hr
Jun 12, 3:23 AM CDT	Special Weather Statement	LZK	Grant	32 min
Jun 12, 3:27 AM CDT	Special Weather Statement	LZK	Scott	28 min
Jun 12, 3:36 AM CDT	Special Weather Statement	LZK	Ouachita	44 min
Jun 12, 3:48 AM CDT	Areal Flood Advisory	LZK	Garland, Grant, Hot Spring	2 hr
Jun 12, 4:12 AM CDT	Special Weather Statement	LZK	Logan, Yell	43 min
Jun 12, 4:24 AM CDT	Flash Flood Warning	LZK	Garland, Hot Spring, Montgomery	2 hr
Jun 12, 4:32 AM CDT	Special Weather Statement	LZK	Clark	43 min
Jun 12, 5:02 AM CDT	Special Weather Statement	LZK	Bradley, Desha, Drew	58 min
Jun 12, 5:33 AM CDT	Flash Flood Warning	LZK	Arkansas, Monroe	117 min
Jun 12, 6:27 AM CDT	Flash Flood Warning	LZK	Garland, Hot Spring, Montgomery	63 min

Nearby

Flash Flood Warnings in Arkansas, 2012 Every flash flood warning in 2012

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.