Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 252, NWS Little Rock, AR

July 19, 2012Lonoke County, Prairie County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 19, 2012, 4:21 PM CDT for Lonoke County, Prairie County, Arkansas. It was in force for 39 min. 1 report 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
Jul 19, 2012, 4:21 PM CDT (21:21 UTC)
Expired
Jul 19, 2012, 5:00 PM CDT
In force
39 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Lonoke County, AR, Prairie County, AR

The radar

The Little Rock radar (KLZK), 48 km from the middle of the area, began a volume at 21:21 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
Jul 19, 4:30 PM CDTHAIL 1Woodlawn, AR

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 (KLZK), launched 12:00Z, 9.4 hours before the alert went out and 163 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 12:00Z on 2012-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1380 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 12:00Z on 2012-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
1380 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1490 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
1 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.

898 
WUUS54 KLZK 192121
SVRLZK
ARC085-117-192200-
/O.NEW.KLZK.SV.W.0252.120719T2121Z-120719T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
421 PM CDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL LONOKE COUNTY IN CENTRAL ARKANSAS...
  WEST CENTRAL PRAIRIE COUNTY IN CENTRAL ARKANSAS...

* UNTIL 500 PM CDT

* AT 417 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  SOUTH OF THURMAN...OR 9 MILES NORTHEAST OF LONOKE...AND MOVING
  SOUTHEAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PRAIRIE CENTER...     MCCREANOR...          CARLISLE...
  SCREETON...           BUTLERVILLE...        WATTENSAW...
  WATERPROOF...         HAZEN MUNI ARPT...    CARLISLE MUNI ARPT...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 178 AND 189.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3476 9161 3471 9180 3497 9190 3498 9175
TIME...MOT...LOC 2121Z 327DEG 8KT 3488 9179

$$

225
1 follow-up statement
142 
WWUS54 KLZK 192132
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
432 PM CDT THU JUL 19 2012

ARC085-117-192200-
/O.CON.KLZK.SV.W.0252.000000T0000Z-120719T2200Z/
LONOKE AR-PRAIRIE AR-
432 PM CDT THU JUL 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
PRAIRIE AND EAST CENTRAL LONOKE COUNTIES UNTIL 500 PM CDT...

AT 429 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 5 MILES SOUTH OF THURMAN...OR 10 MILES NORTHEAST OF LONOKE...
MOVING SOUTHEAST AT 5 MPH.

* LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE...
  PRAIRIE CENTER...     MCCREANOR...          CARLISLE...
  SCREETON...           BUTLERVILLE...        WATTENSAW...
  WATERPROOF...         HAZEN MUNI ARPT...    CARLISLE MUNI ARPT...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 178 AND 189.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZE HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3476 9161 3471 9180 3497 9190 3498 9175
TIME...MOT...LOC 2132Z 330DEG 4KT 3490 9179

$$

225

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 12:14 PM CDTSpecial Weather StatementLZKIndependence31 min
Jul 19, 12:38 PM CDTSpecial Weather StatementLZKWhite47 min
Jul 19, 12:52 PM CDTSpecial Weather StatementLZKJackson28 min
Jul 19, 1:14 PM CDTSpecial Weather StatementLZKJackson31 min
Jul 19, 1:18 PM CDTSevere Thunderstorm WarningLZKJackson, White, Woodruff27 min
Jul 19, 1:32 PM CDTSpecial Weather StatementLZKPope28 min
Jul 19, 1:40 PM CDTSpecial Weather StatementLZKWhite30 min
Jul 19, 1:42 PM CDTSevere Thunderstorm WarningLZKWhite33 min
Jul 19, 1:45 PM CDTSevere Thunderstorm WarningLZKConway, Pope, Van Buren30 min
Jul 19, 1:48 PM CDTSpecial Weather StatementLZKWhite27 min
Jul 19, 1:48 PM CDTSevere Thunderstorm WarningLZKWoodruff27 min
Jul 19, 2:17 PM CDTSevere Thunderstorm WarningLZKWoodruff28 min
Jul 19, 2:20 PM CDTSpecial Weather StatementLZKFaulkner30 min
Jul 19, 2:24 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Van Buren36 min
Jul 19, 2:24 PM CDTSevere Thunderstorm WarningLZKPope51 min
Jul 19, 2:35 PM CDTSpecial Weather StatementLZKGarland45 min
Jul 19, 2:42 PM CDTSpecial Weather StatementLZKVan Buren18 min
Jul 19, 2:44 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Van Buren17 min
Jul 19, 2:50 PM CDTSpecial Weather StatementLZKPulaski45 min
Jul 19, 2:53 PM CDTSpecial Weather StatementLZKPope47 min
Jul 19, 3:10 PM CDTSpecial Weather StatementLZKWhite45 min
Jul 19, 3:12 PM CDTSpecial Weather StatementLZKBoone48 min
Jul 19, 3:15 PM CDTSpecial Weather StatementLZKMonroe45 min
Jul 19, 3:44 PM CDTSpecial Weather StatementLZKMarion46 min
Jul 19, 3:51 PM CDTSpecial Weather StatementLZKBoone44 min
Jul 19, 3:55 PM CDTSevere Thunderstorm WarningLZKMonroe, Prairie7 min
Jul 19, 3:57 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie48 min
Jul 19, 3:57 PM CDTSevere Thunderstorm WarningLZKBoone29 min
Jul 19, 4:05 PM CDTSpecial Weather StatementLZKBoone45 min
Jul 19, 4:16 PM CDTSpecial Weather StatementLZKBaxter44 min
Jul 19, 4:33 PM CDTSpecial Weather StatementLZKSearcy47 min
Jul 19, 4:36 PM CDTSpecial Weather StatementLZKBoone44 min
Jul 19, 4:40 PM CDTSpecial Weather StatementLZKBaxter45 min
Jul 19, 4:51 PM CDTSpecial Weather StatementLZKFulton44 min
Jul 19, 4:59 PM CDTSevere Thunderstorm WarningLZKLonoke, Pulaski14 min
Jul 19, 5:24 PM CDTSpecial Weather StatementLZKNewton46 min
Jul 19, 5:44 PM CDTSpecial Weather StatementLZKIzard46 min
Jul 19, 5:51 PM CDTSpecial Weather StatementLZKNewton44 min
Jul 19, 6:08 PM CDTSpecial Weather StatementLZKSearcy47 min
Jul 19, 6:18 PM CDTSevere Thunderstorm WarningLZKJohnson, Newton, Pope42 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2012Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.