Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 244, NWS Tulsa, OK

September 6, 2012Carroll County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 6, 2012, 7:32 PM CDT for Carroll County, Madison County, Arkansas. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 6, 2012, 7:32 PM CDT (00:32 UTC)
Expired
Sep 6, 2012, 8:15 PM CDT
In force
43 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Carroll County, AR, Madison County, AR

The radar

The Springfield radar (KSGF), 114 km from the middle of the area, began a volume at 00:32 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

Springfield, MO (KSGF), launched 00:00Z, 0.5 hours before the alert went out and 85 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 00:00Z on 2012-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 348 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 00:00Z on 2012-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
348 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
2009 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

441 
WUUS54 KTSA 070032
SVRTSA
ARC015-087-070115-
/O.NEW.KTSA.SV.W.0244.120907T0032Z-120907T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
732 PM CDT THU SEP 6 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CARROLL COUNTY IN NORTHWEST ARKANSAS
  NORTHEASTERN MADISON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 815 PM CDT

* AT 728 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES SOUTHWEST
  OF RUDD...MOVING NORTHEAST AT 25 MPH.

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

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...RUDD...
  OSAGE...RULE...GREEN FOREST 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 9330 3611 9355 3627 9371 3641 9330
      3635 9329 3612 9329
TIME...MOT...LOC 0032Z 245DEG 20KT 3615 9360

$$
3 follow-up statements
465 
WWUS54 KTSA 070047
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
747 PM CDT THU SEP 6 2012

ARC015-087-070115-
/O.CON.KTSA.SV.W.0244.000000T0000Z-120907T0115Z/
CARROLL AR-MADISON AR-
747 PM CDT THU SEP 6 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN MADISON AND SOUTHEASTERN CARROLL COUNTIES...

AT 744 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR DRYFORK...
MOVING NORTHEAST AT 25 MPH.

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

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

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 9330 3611 9355 3627 9371 3641 9330
      3635 9329 3612 9329
TIME...MOT...LOC 0047Z 245DEG 20KT 3617 9352

$$
811 
WWUS54 KTSA 070102
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
802 PM CDT THU SEP 6 2012

ARC015-087-070115-
/O.CON.KTSA.SV.W.0244.000000T0000Z-120907T0115Z/
CARROLL AR-MADISON AR-
802 PM CDT THU SEP 6 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN MADISON AND SOUTHEASTERN CARROLL COUNTIES...

AT 800 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR OSAGE...MOVING
EAST AT 25 MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CONNOR...
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 3611 9355 3627 9371 3634 9351 3613 9329
      3612 9329
TIME...MOT...LOC 0102Z 253DEG 21KT 3617 9341

$$
842 
WWUS54 KTSA 070110
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
810 PM CDT THU SEP 6 2012

ARC015-087-070121-
/O.EXP.KTSA.SV.W.0244.000000T0000Z-120907T0115Z/
CARROLL AR-MADISON AR-
810 PM CDT THU SEP 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MADISON AND
SOUTHEASTERN CARROLL COUNTIES EXPIRES AT 815 PM CDT...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

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.

LAT...LON 3611 9355 3627 9371 3634 9351 3613 9329
      3612 9329
TIME...MOT...LOC 0111Z 253DEG 21KT 3619 9335

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 7:01 PM CDTSevere Thunderstorm WarningTSAMadison44 min
Sep 6, 8:06 PM CDTSpecial Weather StatementTSACarroll39 min
Sep 6, 8:13 PM CDTSevere Thunderstorm WarningTSACarroll32 min
Sep 7, 4:09 PM CDTSevere Thunderstorm WarningTSABenton51 min
Sep 7, 4:39 PM CDTSevere Thunderstorm WarningTSABenton, Carroll, Madison51 min
Sep 7, 5:01 PM CDTSevere Thunderstorm WarningTSABenton, Carroll, Crawford, Madison, Washington59 min
Sep 7, 5:39 PM CDTSevere Thunderstorm WarningTSACarroll, Crawford, Franklin, Madison, Washington51 min
Sep 7, 5:55 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian65 min
Sep 7, 6:37 PM CDTSevere Thunderstorm WarningTSAFranklin, Sebastian38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.