Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 148, NWS Tulsa, OK

July 14, 20124 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 14, 2012, 12:34 PM CDT for 4 counties in Arkansas. It was in force for 56 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
Jul 14, 2012, 12:34 PM CDT (17:34 UTC)
Expired
Jul 14, 2012, 1:30 PM CDT
In force
56 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 67 km from the middle of the area, began a volume at 17:35 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 12:00Z, 5.6 hours before the alert went out and 125 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 2012-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1516 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 2012-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
1516 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
112 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.

847 
WUUS54 KTSA 141734
SVRTSA
ARC033-047-087-143-141830-
/O.NEW.KTSA.SV.W.0148.120714T1734Z-120714T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1234 PM CDT SAT JUL 14 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
  SOUTHWESTERN MADISON COUNTY IN NORTHWEST ARKANSAS
  SOUTHEASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS
  NORTHERN FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 130 PM CDT

* AT 1231 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 5 MILES SOUTH OF ELKINS TO 9 MILES WEST OF SAINT    
  PAUL TO SAINT PAUL...MOVING SOUTH AT 15 MPH. THE STRONGEST PART OF 
  THE LINE IS LOCATED NEAR DURHAM IN FAR EASTERN WASHINGTON COUNTY.

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

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...CASS
  AND FERN.

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 3603 9403 3588 9375 3554 9374 3554 9401
      3569 9405
TIME...MOT...LOC 1733Z 007DEG 12KT 3593 9398 3580 9393
          3580 9381

$$
3 follow-up statements
310 
WWUS54 KTSA 141753
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1253 PM CDT SAT JUL 14 2012

ARC033-047-087-143-141830-
/O.CON.KTSA.SV.W.0148.000000T0000Z-120714T1830Z/
CRAWFORD AR-FRANKLIN AR-MADISON AR-WASHINGTON AR-
1253 PM CDT SAT JUL 14 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
SOUTHEASTERN WASHINGTON...SOUTHWESTERN MADISON...CENTRAL FRANKLIN AND
NORTHEASTERN CRAWFORD COUNTIES...

AT 1247 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ELKINS TO BIDVILLE TO JETHRO...MOVING SOUTHWEST AT 25
MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FERN...
CRAVENS AND LONELM.

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 3554 9401 3569 9405 3603 9403 3598 9393
      3554 9384
TIME...MOT...LOC 1753Z 026DEG 21KT 3595 9403 3570 9405
          3563 9394

$$
156 
WWUS54 KTSA 141812
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
112 PM CDT SAT JUL 14 2012

ARC087-143-141822-
/O.CAN.KTSA.SV.W.0148.000000T0000Z-120714T1830Z/
MADISON AR-WASHINGTON AR-
112 PM CDT SAT JUL 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON AND
SOUTHWESTERN MADISON COUNTIES IS CANCELLED...

LAT...LON 3576 9391 3554 9384 3554 9401 3569 9405
TIME...MOT...LOC 1812Z 014DEG 12KT 3571 9404 3554 9393

$$

ARC033-047-141830-
/O.CON.KTSA.SV.W.0148.000000T0000Z-120714T1830Z/
CRAWFORD AR-FRANKLIN AR-
112 PM CDT SAT JUL 14 2012

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
CENTRAL FRANKLIN AND NORTHEASTERN CRAWFORD COUNTIES...

AT 109 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTH OF FERN TO CRAVENS...MOVING SOUTH AT 15
MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...LONELM AND
FERN.

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 3576 9391 3554 9384 3554 9401 3569 9405
TIME...MOT...LOC 1812Z 014DEG 12KT 3571 9404 3554 9393

$$
525 
WWUS54 KTSA 141826
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
126 PM CDT SAT JUL 14 2012

ARC033-047-141836-
/O.EXP.KTSA.SV.W.0148.000000T0000Z-120714T1830Z/
CRAWFORD AR-FRANKLIN AR-
126 PM CDT SAT JUL 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FRANKLIN AND
NORTHEASTERN CRAWFORD COUNTIES EXPIRES AT 130 PM CDT...

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

GUSTY WINDS AND HEAVY RAIN WILL STILL BE POSSIBLE WITH THIS STORM.

LAT...LON 3576 9391 3554 9384 3554 9401 3569 9405
TIME...MOT...LOC 1826Z 014DEG 12KT 3566 9405 3549 9394

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 8:54 PM CDTSpecial Weather StatementTSAMadison36 min
Jul 14, 12:59 PM CDTSpecial Weather StatementTSACrawford, Washington31 min
Jul 14, 1:25 PM CDTSpecial Weather StatementTSACrawford, Franklin35 min
Jul 14, 1:29 PM CDTSpecial Weather StatementTSAWashington31 min
Jul 14, 1:43 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian48 min
Jul 14, 1:56 PM CDTSpecial Weather StatementTSACrawford34 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.