Alert archive / Arkansas / Tornado Warnings in 2005

Tornado Warning 20, NWS Tulsa, OK

April 11, 2005Franklin County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 11, 2005, 3:56 PM CDT for Franklin County, Arkansas. It was in force for 34 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: Apr 11, 2005, 3:56 PM CDT (20:56 UTC)
Expired: Apr 11, 2005, 4:30 PM CDT
In force: 34 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Franklin County, AR

The radar

The Western Arkansas radar (KSRX), 58 km from the middle of the area, began a volume at 20:57 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, 8.9 hours before the alert went out and 150 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: 255 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 112056
TORTSA
ARC047-112130-
/O.NEW.KTSA.TO.W.0020.050411T2056Z-050411T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
356 PM CDT MON APR 11 2005

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 430 PM CDT

* AT 352 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS STORM WAS LOCATED
  NEAR OZARK...MOVING EAST AT 10 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WATALULA AND
  MOUNTAIN TOP.

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

LAT...LON 3555 9389 3543 9384 3555 9367 3566 9373

$$

2 follow-up statements

000 
WWUS54 KTSA 112106
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
406 PM CDT MON APR 11 2005

ARC047-112130-
/O.CON.KTSA.TO.W.0020.000000T0000Z-050411T2130Z/
FRANKLIN AR-
406 PM CDT MON APR 11 2005

...A TORNADO WARNING CONTINUES UNTIL 430 PM CDT FOR FRANKLIN
COUNTY...

AT 403 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS STORM WAS LOCATED
NEAR OZARK...MOVING NORTHEAST AT 5 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OZARK...
WIEDERKEHR VILLAGE...MOUNTAIN TOP AND WATALULA.

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

LAT...LON 3555 9389 3543 9384 3552 9367 3564 9371

$$

000 
WWUS54 KTSA 112122
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
422 PM CDT MON APR 11 2005

ARC047-112132-
/O.CAN.KTSA.TO.W.0020.000000T0000Z-050411T2130Z/
FRANKLIN AR-
422 PM CDT MON APR 11 2005

...THE TORNADO WARNING FOR FRANKLIN COUNTY HAS BEEN CANCELLED...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
TORNADO WARNING HAS BEEN CANCELLED.

LAT...LON 3555 9389 3543 9384 3552 9367 3564 9371

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 4:08 AM CDT	Severe Thunderstorm Warning	TSA	Sebastian	52 min
Apr 11, 2:26 PM CDT	Severe Thunderstorm Warning	TSA	Benton	64 min
Apr 11, 4:50 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	55 min
Apr 11, 5:14 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	61 min
Apr 11, 5:42 PM CDT	Tornado Warning	TSA	Carroll	48 min

Nearby

Tornado Warnings in Arkansas, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.