Alert archive / Arkansas / Tornado Warnings in 2008

Tornado Warning 57, NWS Tulsa, OK

April 9, 2008Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 9, 2008, 11:25 PM CDT for Sebastian County, Arkansas. It was in force for 50 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 9, 2008, 11:25 PM CDT (04:25 UTC)
Expired: Apr 10, 2008, 12:15 AM CDT
In force: 50 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 16 km from the middle of the area, began a volume at 04:27 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.

What was reported inside it

Time	Report	Where	Remark
Apr 9, 11:26 PM CDT	TSTM WND DMG	1 W Greenwood, AR	FEW TREES DOWN AND DAMAGED
Apr 9, 11:29 PM CDT	HAIL 0.88	Excelsior, AR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 9, 10:40 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.4 hours before the alert went out and 183 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: 615 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 315 m²/s²
0-3 km storm-relative helicity: 393 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.

000 
WFUS54 KTSA 100424
TORTSA
ARC131-100515-
/O.NEW.KTSA.TO.W.0057.080410T0425Z-080410T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1125 PM CDT WED APR 9 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 1215 AM CDT

* AT 1123 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES
  SOUTHWEST OF EXCELSIOR...MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...EXCELSIOR...
  JENNY LIND...GREENWOOD...BURNVILLE...BLOOMER AND LAVACA.

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 3544 9408 3522 9408 3511 9431 3521 9439
TIME...MOT...LOC 0425Z 236DEG 34KT 3518 9432

$$

2 follow-up statements

000 
WWUS54 KTSA 100439
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1140 PM CDT WED APR 9 2008

ARC131-100515-
/O.CON.KTSA.TO.W.0057.000000T0000Z-080410T0515Z/
SEBASTIAN AR-
1140 PM CDT WED APR 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
NORTHEASTERN SEBASTIAN COUNTY...

AT 1136 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LAVACA TO
BURNVILLE...MOVING NORTHEAST AT 35 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BLOOMER AND
URSULA.

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 3544 9408 3527 9408 3526 9409 3523 9408
      3521 9410 3514 9424 3515 9426 3526 9431
TIME...MOT...LOC 0440Z 236DEG 34KT 3537 9419 3519 9411

$$

000 
WWUS54 KTSA 100506
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1206 AM CDT THU APR 10 2008

ARC131-100516-
/O.EXP.KTSA.TO.W.0057.000000T0000Z-080410T0515Z/
SEBASTIAN AR-
1206 AM CDT THU APR 10 2008

...THE TORNADO WARNING FOR NORTHEASTERN SEBASTIAN COUNTY EXPIRES AT
1215 AM CDT...

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

GUSTY WINDS AND VERY HEAVY RAIN WILL STILL BE POSSIBLE WITH THESE 
WESTERN PORTION OF THIS LINE OF STORMS WHICH IS CURRENTLY MOVING 
ACROSS FAR EASTERN SEBASTIAN COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 6 AM.

LAT...LON 3544 9408 3527 9408 3526 9409 3523 9408
      3521 9410 3514 9424 3515 9426 3526 9431
TIME...MOT...LOC 0506Z 236DEG 34KT 3551 9394 3533 9386

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 8:16 PM CDT	Tornado Warning	TSA	Crawford, Sebastian	44 min
Apr 9, 8:54 PM CDT	Flash Flood Warning	TSA	Crawford, Sebastian	4 hr
Apr 9, 8:56 PM CDT	Tornado Warning	TSA	Crawford, Franklin, Sebastian	49 min
Apr 9, 9:11 PM CDT	Flash Flood Warning	TSA	Crawford, Franklin	4 hr
Apr 9, 9:14 PM CDT	River Flood Warning	TSA	Crawford, Sebastian	3 days
Apr 9, 10:02 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	58 min
Apr 9, 10:09 PM CDT	Tornado Warning	TSA	Crawford, Sebastian	51 min
Apr 9, 10:44 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	8 hr
Apr 9, 10:49 PM CDT	Tornado Warning	TSA	Crawford, Franklin	41 min
Apr 9, 11:04 PM CDT	Flash Flood Warning	TSA	Sebastian	4 hr
Apr 9, 11:05 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	70 min
Apr 9, 11:38 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	59 min
Apr 10, 1:01 AM CDT	Flash Flood Warning	TSA	Crawford, Franklin, Sebastian	12 hr
Apr 10, 2:20 AM CDT	River Flood Warning	TSA	Crawford	30 hr
Apr 10, 2:41 AM CDT	Special Weather Statement	TSA	Washington	34 min
Apr 10, 3:05 AM CDT	Special Weather Statement	TSA	Washington	40 min
Apr 10, 5:11 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	94 min
Apr 10, 5:17 AM CDT	Severe Thunderstorm Warning	TSA	Washington	88 min
Apr 10, 5:22 AM CDT	Special Weather Statement	TSA	Benton	53 min
Apr 10, 5:51 AM CDT	Severe Thunderstorm Warning	TSA	Franklin, Madison	54 min
Apr 10, 6:23 AM CDT	Severe Thunderstorm Warning	TSA	Carroll	43 min
Apr 10, 6:43 AM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
Apr 10, 6:47 AM CDT	Severe Thunderstorm Warning	TSA	Franklin	25 min
Apr 10, 8:18 AM CDT	River Flood Warning	TSA	Carroll	20 hr
Apr 10, 2:34 PM CDT	Wind Advisory	TSA	Benton, Carroll, Madison, Washington	7 hr

Nearby

Tornado Warnings in Arkansas, 2008 Every tornado warning in 2008 Tornadoes in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.