Alert archive / Arkansas / Tornado Warnings in 2009

Tornado Warning 19, NWS Tulsa, OK

May 1, 2009Carroll County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 1, 2009, 6:11 PM CDT for Carroll County, Arkansas. It was in force for 25 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: May 1, 2009, 6:11 PM CDT (23:11 UTC)
Expired: May 1, 2009, 6:36 PM CDT
In force: 25 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Carroll County, AR

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 23:13 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
May 1, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.2 hours before the alert went out and 74 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: 792 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 675 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 012311
TORTSA
ARC015-020000-
/O.NEW.KTSA.TO.W.0019.090501T2311Z-090502T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
611 PM CDT FRI MAY 1 2009

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CARROLL COUNTY IN NORTHWEST ARKANSAS

* UNTIL 700 PM CDT

* AT 610 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES WEST OF
  RUDD...MOVING EAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...RUDD...RULE...
  GREEN FOREST...CARROLLTON AND ALPENA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3620 9329 3622 9361 3626 9361 3626 9363
      3628 9363 3628 9365 3629 9366 3640 9330
      3639 9329
TIME...MOT...LOC 2311Z 270DEG 20KT 3624 9361

$$

2 follow-up statements

000 
WWUS54 KTSA 012326
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
626 PM CDT FRI MAY 1 2009

ARC015-020000-
/O.CON.KTSA.TO.W.0019.000000T0000Z-090502T0000Z/
CARROLL AR-
626 PM CDT FRI MAY 1 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EASTERN
CARROLL COUNTY...

AT 626 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR CABANAL...MOVING EAST AT 25 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...RULE...CONNOR...
GREEN FOREST...COIN...CARROLLTON AND ALPENA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3622 9352 3629 9359 3639 9330 3639 9329
      3620 9329
TIME...MOT...LOC 2326Z 268DEG 20KT 3625 9350

$$

000 
WWUS54 KTSA 012336
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
636 PM CDT FRI MAY 1 2009

ARC015-012347-
/O.CAN.KTSA.TO.W.0019.000000T0000Z-090502T0000Z/
CARROLL AR-
636 PM CDT FRI MAY 1 2009

...THE TORNADO WARNING FOR EASTERN CARROLL COUNTY IS CANCELLED...

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

LAT...LON 3622 9352 3629 9359 3639 9330 3639 9329
      3620 9329
TIME...MOT...LOC 2337Z 268DEG 20KT 3625 9342

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 3:39 AM CDT	Flash Flood Watch	TSA	Benton, Carroll, Madison, Washington	54 hr
May 1, 4:27 AM CDT	Severe Thunderstorm Warning	TSA	Benton	63 min
May 1, 7:08 AM CDT	Special Weather Statement	TSA	Carroll	67 min
May 1, 10:09 AM CDT	Flash Flood Warning	TSA	Crawford, Washington	3 hr
May 1, 11:04 AM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	56 min
May 1, 2:52 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	51 min
May 1, 3:14 PM CDT	Severe Thunderstorm Warning	TSA	Benton	61 min
May 1, 3:59 PM CDT	Areal Flood Warning	TSA	Benton	6 hr
May 1, 4:11 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	64 min
May 1, 4:49 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
May 1, 5:07 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	53 min
May 1, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	68 min
May 1, 5:52 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Madison, Washington	53 min
May 1, 5:52 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	68 min
May 1, 6:03 PM CDT	Tornado Warning	TSA	Benton, Madison, Washington	57 min
May 1, 6:37 PM CDT	Tornado Warning	TSA	Carroll, Madison	53 min

Nearby

Tornado Warnings in Arkansas, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.