Alert archive / Arkansas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 310, NWS Little Rock, AR

August 17, 20145 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 17, 2014, 2:53 PM CDT for 5 counties in Arkansas. It was in force for 33 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: Aug 17, 2014, 2:53 PM CDT (19:53 UTC)
Expired: Aug 17, 2014, 3:26 PM CDT
In force: 33 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Lonoke County, AR, Monroe County, AR, Prairie County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 73 km from the middle of the area, began a volume at 19:53 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

Time	Report	Where	Remark
Aug 17, 3:05 PM CDT	TSTM WND DMG	Des Arc, AR	TREES AND POWER LINES DOWN IN DES ARC.

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 12:00Z, 7.9 hours before the alert went out and 140 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: 1443 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1242 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 60 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.

939 
WUUS54 KLZK 171953
SVRLZK
ARC085-095-117-145-147-172045-
/O.NEW.KLZK.SV.W.0310.140817T1953Z-140817T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
253 PM CDT SUN AUG 17 2014

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL LONOKE COUNTY IN CENTRAL ARKANSAS...
  NORTHWESTERN MONROE COUNTY IN EASTERN ARKANSAS...
  NORTHERN PRAIRIE COUNTY IN CENTRAL ARKANSAS...
  SOUTHEASTERN WHITE COUNTY IN CENTRAL ARKANSAS...
  SOUTHWESTERN WOODRUFF COUNTY IN EASTERN ARKANSAS...

* UNTIL 345 PM CDT

* AT 250 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 4 MILES WEST OF DES ARC TO 5 MILES SOUTHWEST OF DES ARC TO 3
  MILES SOUTH OF BARRETTSVILLE...AND MOVING EAST AT 20 MPH. PENNY
  SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

* LOCATIONS IMPACTED INCLUDE...
  HAZEN...              DES ARC...            DE VALLS BLUFF...
  PRAIRIE CENTER...     HALLSVILLE...         DOBBS LANDING...
  CARLISLE...           BARRETTSVILLE...      SCREETON...
  SAND HILL...          MCCLELLAND...         LITTLE DIXIE...
  JASMINE...            HAYLEY...             DIXIE...
  DAGMAR WMA...         COTTON PLANT...       CHILDERS...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 182 AND 212.

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 3513 9132 3498 9123 3474 9130 3476 9181
      3491 9165 3507 9172
TIME...MOT...LOC 1953Z 264DEG 17KT 3499 9156 3492 9153
          3483 9164

$$

58

1 follow-up statement

921 
WWUS54 KLZK 172026
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
326 PM CDT SUN AUG 17 2014

ARC085-095-117-145-147-172035-
/O.CAN.KLZK.SV.W.0310.000000T0000Z-140817T2045Z/
LONOKE AR-MONROE AR-PRAIRIE AR-WHITE AR-WOODRUFF AR-
326 PM CDT SUN AUG 17 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WOODRUFF...
SOUTHEASTERN WHITE...NORTHERN PRAIRIE...NORTHWESTERN MONROE AND EAST
CENTRAL LONOKE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED
OUT OF THE WARNED AREA.  HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH
THESE THUNDERSTORMS.

LAT...LON 3513 9132 3498 9123 3474 9130 3476 9181
      3491 9165 3507 9172
TIME...MOT...LOC 2025Z 264DEG 17KT 3501 9138 3494 9135
          3485 9146

$$

62

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 10:11 PM CDT	Special Weather Statement	LZK	Pike	29 min
Aug 17, 1:16 PM CDT	Special Weather Statement	LZK	Pulaski	29 min
Aug 17, 1:25 PM CDT	Special Weather Statement	LZK	Pulaski	30 min
Aug 17, 1:26 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Pulaski	19 min
Aug 17, 1:33 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Pulaski	27 min
Aug 17, 1:38 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Pulaski	37 min
Aug 17, 1:45 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski	30 min
Aug 17, 2:06 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie	24 min
Aug 17, 2:14 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski	46 min
Aug 17, 2:23 PM CDT	Flash Flood Warning Emergency	LZK	Faulkner, Lonoke, Prairie, Pulaski	3 hr
Aug 17, 2:30 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, Pulaski	30 min
Aug 17, 2:40 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Pulaski	35 min
Aug 17, 2:43 PM CDT	Special Weather Statement	LZK	Lawrence	47 min
Aug 17, 2:56 PM CDT	Special Weather Statement	LZK	Pulaski	44 min
Aug 17, 3:04 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Monroe	41 min
Aug 17, 3:08 PM CDT	Special Weather Statement	LZK	Izard	47 min
Aug 17, 3:24 PM CDT	Special Weather Statement	LZK	Monroe	31 min
Aug 17, 3:26 PM CDT	Special Weather Statement	LZK	Saline	44 min
Aug 17, 3:44 PM CDT	Special Weather Statement	LZK	Izard	46 min
Aug 17, 3:56 PM CDT	Severe Thunderstorm Warning	LZK	Monroe	34 min
Aug 17, 5:34 PM CDT	Special Weather Statement	LZK	Stone	31 min
Aug 17, 5:38 PM CDT	Special Weather Statement	LZK	Pulaski	32 min
Aug 17, 5:40 PM CDT	Flash Flood Warning	LZK	Pulaski	110 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2014 Every severe thunderstorm warning in 2014

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.