Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 166, NWS Tulsa, OK

April 24, 2011Crawford County, Franklin County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 24, 2011, 6:54 PM CDT for Crawford County, Franklin County, Arkansas. It was in force for 35 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 24, 2011, 6:54 PM CDT (23:54 UTC)
Expired: Apr 24, 2011, 7:29 PM CDT
In force: 35 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Crawford County, AR, Franklin County, AR

The radar

The Western Arkansas radar (KSRX), 43 km from the middle of the area, began a volume at 23:56 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 24, 5:36 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 163 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 495 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 132 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.

191 
WUUS54 KTSA 242354
SVRTSA
ARC033-047-250045-
/O.NEW.KTSA.SV.W.0166.110424T2354Z-110425T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
654 PM CDT SUN APR 24 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CRAWFORD COUNTY IN NORTHWEST ARKANSAS
  CENTRAL FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 745 PM CDT

* AT 652 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 3 MILES NORTH OF
  DYER...MOVING EAST AT 35 MPH.

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

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  MULBERRY...OZARK...WIEDERKEHR VILLAGE...ALTUS AND DENNING.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 13 AND 43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM
WINDOWS.

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

&&

LAT...LON 3537 9372 3537 9374 3539 9379 3536 9380
      3541 9407 3545 9408 3544 9414 3543 9416
      3544 9423 3565 9418 3562 9369 3538 9369
TIME...MOT...LOC 2355Z 278DEG 31KT 3554 9411

$$

2 follow-up statements

163 
WWUS54 KTSA 250006
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
706 PM CDT SUN APR 24 2011

ARC033-047-250045-
/O.CON.KTSA.SV.W.0166.000000T0000Z-110425T0045Z/
CRAWFORD AR-FRANKLIN AR-
706 PM CDT SUN APR 24 2011

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
CENTRAL FRANKLIN AND EASTERN CRAWFORD COUNTIES...

AT 702 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PLEASANT
HILL...MOVING EAST AT 35 MPH.

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

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...TONEY...
LONELM...CECIL...CRAVENS...JETHRO...MEG...WATALULA...OZARK...
WIEDERKEHR VILLAGE...ALTUS...DENNING AND ALIX.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 20 AND 43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

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

&&

LAT...LON 3537 9374 3539 9379 3536 9380 3541 9407
      3544 9407 3545 9408 3543 9416 3545 9412
      3564 9410 3562 9369 3538 9369
TIME...MOT...LOC 0006Z 278DEG 31KT 3555 9398

$$

595 
WWUS54 KTSA 250029
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
729 PM CDT SUN APR 24 2011

ARC033-047-250039-
/O.CAN.KTSA.SV.W.0166.000000T0000Z-110425T0045Z/
CRAWFORD AR-FRANKLIN AR-
729 PM CDT SUN APR 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FRANKLIN AND EASTERN
CRAWFORD COUNTIES IS CANCELLED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

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

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 1 AM.

LAT...LON 3537 9374 3539 9379 3536 9380 3541 9407
      3544 9407 3545 9408 3543 9416 3545 9412
      3564 9410 3562 9369 3538 9369
TIME...MOT...LOC 0029Z 278DEG 31KT 3552 9374

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 7:10 PM CDT	Special Weather Statement	TSA	Madison	50 min
Apr 23, 7:27 PM CDT	Severe Thunderstorm Warning	TSA	Madison	43 min
Apr 23, 7:56 PM CDT	Tornado Warning	TSA	Madison	19 min
Apr 23, 10:15 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
Apr 23, 10:39 PM CDT	River Flood Warning	TSA	Carroll	64 hr
Apr 23, 10:51 PM CDT	Special Weather Statement	TSA	Benton, Carroll, Madison, Washington	54 min
Apr 23, 10:57 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	63 min
Apr 23, 11:14 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	16 min
Apr 23, 11:32 PM CDT	Wind Advisory	TSA		4 hr
Apr 23, 11:50 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Washington	42 min
Apr 24, 12:16 AM CDT	Special Weather Statement	TSA	Washington	44 min
Apr 24, 3:49 AM CDT	Areal Flood Warning	TSA	Benton, Carroll, Madison, Washington	8 hr
Apr 24, 9:51 AM CDT	Flash Flood Warning	TSA	Benton, Carroll, Crawford, Franklin, Madison, Washington	4 hr
Apr 24, 2:05 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
Apr 24, 6:24 PM CDT	Special Weather Statement	TSA	Crawford	36 min
Apr 24, 6:29 PM CDT	Areal Flood Advisory	TSA	Crawford, Sebastian	61 min
Apr 24, 6:48 PM CDT	Flash Flood Warning	TSA	Crawford, Franklin, Sebastian	6 hr
Apr 24, 6:48 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	42 min
Apr 24, 6:52 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	53 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2011 Every severe thunderstorm warning in 2011

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.