Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 9, NWS Memphis, TN

January 22, 20124 counties in Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Jan 22, 2012, 6:59 PM CST for 4 counties in Arkansas. It was in force for 46 min. 3 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
Jan 22, 2012, 6:59 PM CST (00:59 UTC)
Expired
Jan 22, 2012, 7:45 PM CST
In force
46 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Craighead County, AR, Greene County, AR, Lawrence County, AR, Randolph County, AR

The radar

The Memphis radar (KNQA), 134 km from the middle of the area, began a volume at 01:00 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.

What was reported inside it

TimeReportWhereRemark
Jan 22, 7:26 PM CSTHAIL 1Black Rock, ARQUARTER SIZE HAIL REPORTED BY LAWRENCE COUNTY SHERIFFS OFFICE IN BLACK ROCK.
Jan 22, 7:38 PM CSTHAIL 0.75Sedgwick, ARDIME TO PENNY SIZE HAIL REPORTED BY SPOTTER.
Jan 22, 7:38 PM CSTHAIL 1Cash, ARQUARTER SIZE HAIL REPORTED BY CRAIGHEAD COUNTY EMERGENCY MANAGEMENT NEAR THE INTERSECTION OF ROUTES 226 AND 67 NEAR CASH.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 22, 5:16 PM CSTTornado Watch PDSSPC6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.0 hours before the alert went out and 168 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 2012-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 998 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 2012-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 475 square meters per square second.1939587897117136Sfc1 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
998 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
455 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
475 m²/s²
0-3 km storm-relative helicity
474 m²/s²
Significant tornado parameter
0.0
Supercell composite
10.8

Open this sounding in Storm Lab

The text

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

144 
WUUS54 KMEG 230059
SVRMEG
ARC031-055-075-121-230145-
/O.NEW.KMEG.SV.W.0009.120123T0059Z-120123T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
659 PM CST SUN JAN 22 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CRAIGHEAD COUNTY IN EASTERN ARKANSAS...
  EXTREME SOUTHWESTERN GREENE COUNTY IN EASTERN ARKANSAS...
  LAWRENCE COUNTY IN EASTERN ARKANSAS...
  SOUTH CENTRAL RANDOLPH COUNTY IN EASTERN ARKANSAS...

* UNTIL 745 PM CST

* AT 659 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 13 MILES SOUTH
  OF STRAWBERRY...OR 7 MILES NORTHEAST OF NEWARK...AND MOVING
  NORTHEAST AT 55 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALICIA...
  ANNIEVILLE...BLACK ROCK...CASH...COLLEGE CITY...EGYPT...HOXIE...
  IMBODEN...LYNN...MINTURN...PORTIA...STRAWBERRY...WALNUT RIDGE AND
  LAKE CHARLES STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A STORM SHELTER OR SMALL INTERIOR ROOM.

.DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3611 9136 3632 9111 3616 9081 3580 9085
      3575 9104 3588 9105 3589 9136
TIME...MOT...LOC 0059Z 230DEG 46KT 3581 9131

$$


WRB/RRH
2 follow-up statements
444 
WWUS54 KMEG 230110
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
710 PM CST SUN JAN 22 2012

ARC031-055-075-121-230145-
/O.CON.KMEG.SV.W.0009.000000T0000Z-120123T0145Z/
CRAIGHEAD AR-GREENE AR-LAWRENCE AR-RANDOLPH AR-
710 PM CST SUN JAN 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR SOUTH CENTRAL RANDOLPH...LAWRENCE...EXTREME SOUTHWESTERN GREENE
AND NORTHWESTERN CRAIGHEAD COUNTIES...

AT 710 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR STRANGERS HOME...OR 11 MILES
NORTH OF TUCKERMAN...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALICIA...
BLACK ROCK...CASH...COLLEGE CITY...EGYPT...HOXIE...LYNN...MINTURN...
PORTIA...POWHATAN...SEDGWICK...STRAWBERRY...WALNUT RIDGE AND BIRDELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A STORM SHELTER OR SMALL INTERIOR ROOM.

&&

LAT...LON 3599 9136 3630 9108 3616 9081 3580 9085
      3575 9104 3588 9105 3589 9136
TIME...MOT...LOC 0110Z 229DEG 47KT 3590 9117

$$


WRB/RRH
312 
WWUS54 KMEG 230129
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
729 PM CST SUN JAN 22 2012

ARC031-055-075-121-230145-
/O.CON.KMEG.SV.W.0009.000000T0000Z-120123T0145Z/
CRAIGHEAD AR-GREENE AR-LAWRENCE AR-RANDOLPH AR-
729 PM CST SUN JAN 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR SOUTH CENTRAL RANDOLPH...EASTERN LAWRENCE...EXTREME SOUTHWESTERN
GREENE AND NORTHWESTERN CRAIGHEAD COUNTIES...

AT 728 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ARBOR GROVE...OR NEAR HOXIE...
MOVING NORTHEAST AT 60 MPH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALICIA...
BLACK ROCK...CASH...COLLEGE CITY...EGYPT...HOXIE...MINTURN...
PORTIA...POWHATAN...SEDGWICK...WALNUT RIDGE...BIRDELL...SHARUM AND
FENDER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A STORM SHELTER OR SMALL INTERIOR ROOM.

&&

LAT...LON 3601 9116 3610 9121 3629 9105 3616 9081
      3580 9085 3575 9104 3588 9105 3589 9122
TIME...MOT...LOC 0128Z 222DEG 51KT 3609 9096

$$


WRB/RRH

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 22, 7:26 PM CSTSevere Thunderstorm WarningMEGCraighead, Greene, Lawrence34 min
Jan 22, 7:42 PM CSTSevere Thunderstorm WarningMEGClay, Greene, Lawrence, Randolph48 min
Jan 22, 7:53 PM CSTSevere Thunderstorm WarningMEGClay, Greene52 min
Jan 22, 7:56 PM CSTSevere Thunderstorm WarningMEGCraighead, Cross, Poinsett49 min
Jan 22, 8:11 PM CSTTornado WarningMEGLee, St. Francis49 min
Jan 22, 8:18 PM CSTSevere Thunderstorm WarningMEGCross, Poinsett42 min
Jan 22, 8:27 PM CSTSevere Thunderstorm WarningMEGClay, Greene63 min
Jan 22, 8:43 PM CSTTornado WarningMEGLee, Phillips47 min
Jan 22, 8:44 PM CSTSevere Thunderstorm WarningMEGCraighead, Mississippi, Poinsett61 min
Jan 22, 8:58 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, St. Francis38 min
Jan 22, 9:01 PM CSTSevere Thunderstorm WarningMEGPhillips44 min
Jan 22, 9:18 PM CSTTornado WarningMEGLee, Phillips27 min
Jan 22, 9:20 PM CSTSevere Thunderstorm WarningMEGCrittenden, Mississippi55 min
Jan 22, 9:21 PM CSTSevere Thunderstorm WarningMEGLee, Phillips24 min
Jan 22, 9:41 PM CSTSevere Thunderstorm WarningMEGLee, Phillips49 min
Jan 22, 9:46 PM CSTTornado WarningMEGLee, Phillips29 min
Jan 22, 9:55 PM CSTTornado WarningMEGCrittenden, St. Francis22 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.