Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 129, NWS Tulsa, OK

June 11, 2012Carroll County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 11, 2012, 12:01 PM CDT for Carroll County, Arkansas. It was in force for 59 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
Jun 11, 2012, 12:01 PM CDT (17:01 UTC)
Expired
Jun 11, 2012, 1:00 PM CDT
In force
59 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

County Carroll County, AR

The radar

The Springfield radar (KSGF), 106 km from the middle of the area, began a volume at 17:02 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
Jun 11, 12:20 PM CDTTSTM WND DMG3 W Green Forest, ARTREE BLOWN DOWN ON COUNTY ROAD...BETWEEN GREEN FOREST AND BERRYVILLE.

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
Jun 11, 9:45 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 5.0 hours before the alert went out and 70 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, Springfield, MO at 12:00Z on 2012-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2246 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, Springfield, MO at 12:00Z on 2012-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 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
2246 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
805 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
12.3

Open this sounding in Storm Lab

The text

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

193 
WUUS54 KTSA 111701
SVRTSA
ARC015-111800-
/O.NEW.KTSA.SV.W.0129.120611T1701Z-120611T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1201 PM CDT MON JUN 11 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTHWEST ARKANSAS

* UNTIL 100 PM CDT

* AT 1158 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 6 MILES NORTHWEST OF GRANDVIEW TO 7 MILES SOUTHWEST 
OF EUREKA SPRINGS...MOVING EAST SOUTHEAST AT 40 MPH.

  STORM HAZARDS INCLUDE...
  QUARTER SIZE HAIL...
  WIND GUSTS TO 60 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  GRANDVIEW...URBANETTE...BERRYVILLE...OAK GROVE...GREEN FOREST...
  RULE...RUDD...OSAGE AND CARROLLTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3612 9351 3623 9362 3626 9362 3627 9364
      3628 9363 3628 9367 3630 9366 3630 9374
      3633 9383 3651 9373 3651 9333 3649 9329
      3612 9329
TIME...MOT...LOC 1701Z 285DEG 35KT 3650 9363 3632 9379

$$
3 follow-up statements
094 
WWUS54 KTSA 111722
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1222 PM CDT MON JUN 11 2012

ARC015-111800-
/O.CON.KTSA.SV.W.0129.000000T0000Z-120611T1800Z/
CARROLL AR-
1222 PM CDT MON JUN 11 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
CARROLL COUNTY...

AT 1215 PM CDT...A LARGE CLUSTER OF STRONG TO SEVERE THUNDERSTORMS 
WERE COVERING MUCH OF CARROLL COUNTY.  THESE STORMS WERE MOVING EAST 
AT 30 MPH...AND WERE STARTING TO WEAKEN.  

STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BLUE
EYE...CABANAL...METALTON...GREEN FOREST...RULE...RUDD...DENVER...
DRYFORK...CONNOR...COIN...OSAGE...CARROLLTON AND DELMAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3612 9329 3612 9351 3623 9362 3626 9362
      3627 9364 3628 9363 3628 9366 3630 9366
      3631 9374 3650 9362 3650 9332 3649 9329
TIME...MOT...LOC 1719Z 290DEG 28KT 3647 9344 3629 9360

$$
594 
WWUS54 KTSA 111741
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1241 PM CDT MON JUN 11 2012

ARC015-111800-
/O.CON.KTSA.SV.W.0129.000000T0000Z-120611T1800Z/
CARROLL AR-
1241 PM CDT MON JUN 11 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
EASTERN CARROLL COUNTY...

AT 1236 PM CDT...STRONG TO SEVERE THUNDERSTORMS WERE LOCATED ALONG A 
BROAD LINE EXTENDING FROM COIN TO METALTON...MOVING EAST AT 30 MPH. 
THE STRONGEST STORM WAS JUST NORTHEAST OF METALTON. 

STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH WILL BE POSSIBLE...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
CARROLLTON...DRYFORK...OSAGE AND DELMAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3612 9329 3612 9348 3612 9351 3623 9362
      3628 9363 3650 9332 3649 9329
TIME...MOT...LOC 1739Z 290DEG 25KT 3631 9331 3617 9354

$$
226 
WWUS54 KTSA 111757
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1257 PM CDT MON JUN 11 2012

ARC015-111806-
/O.EXP.KTSA.SV.W.0129.000000T0000Z-120611T1800Z/
CARROLL AR-
1257 PM CDT MON JUN 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARROLL COUNTY EXPIRES
AT 100 PM CDT...

THE THUNDERSTORMS HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

GUSTY WINDS...SMALL HAIL AND HEAVY RAIN WILL STILL BE POSSIBLE WITH 
THESE STORMS...ESPECIALLY OVER FAR SOUTHEAST CARROLL COUNTY NEAR OSAGE.

TO REPORT PREVIOUS HAIL OR WIND DAMAGE...HAVE THE NEAREST LAW
ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN TULSA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 4 PM. 

LAT...LON 3612 9329 3612 9348 3612 9351 3623 9362
      3628 9363 3650 9332 3649 9329
TIME...MOT...LOC 1756Z 290DEG 25KT 3622 9328 3613 9340

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 10:49 AM CDTSpecial Weather StatementTSABenton, Carroll26 min
Jun 11, 11:16 AM CDTSpecial Weather StatementTSABenton, Carroll29 min
Jun 11, 11:44 AM CDTSpecial Weather StatementTSACarroll31 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.