Alert archive / Arkansas / Tornado Warnings in 2008

Tornado Warning 64, NWS Tulsa, OK

May 2, 2008Benton County, Washington County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 2, 2008, 4:21 AM CDT for Benton County, Washington County, Arkansas. It was in force for 24 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: May 2, 2008, 4:21 AM CDT (09:21 UTC)
Expired: May 2, 2008, 4:45 AM CDT
In force: 24 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Benton County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 118 km from the middle of the area, began a volume at 09:22 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
May 2, 4:26 AM CDT	TSTM WND GST 64	Highfill, AR
May 2, 4:47 AM CDT	TSTM WND DMG	Garfield, AR	SEVERAL LARGE TREES DOWN.

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
May 2, 1:09 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 9.4 hours before the alert went out and 69 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: 1112 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 1195 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 225 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 020921
TORTSA
ARC007-143-020945-
/O.NEW.KTSA.TO.W.0064.080502T0921Z-080502T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
421 AM CDT FRI MAY 2 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  BENTON COUNTY IN NORTHWEST ARKANSAS
  NORTHERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 445 AM CDT

* AT 416 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A POTENTIALLY TORNADIC THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
  5 MILES SOUTHWEST OF SPRINGTOWN...MOVING NORTHEAST AT 65 MPH. THIS
  DANGEROUS STORM HAS A HISTORY OF PRODUCING A TORNADO...TAKE COVER
  NOW

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...HIGHFILL...
  CAVE SPRINGS...LOWELL...BENTONVILLE...BELLA VISTA...ROGERS...PEA
  RIDGE...GARFIELD AND GATEWAY.

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 3631 9386 3613 9445 3626 9453 3649 9416
      3650 9387
TIME...MOT...LOC 0921Z 236DEG 57KT 3625 9438

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 3:30 AM CDT	Severe Thunderstorm Warning	TSA	Benton	60 min
May 2, 4:02 AM CDT	Tornado Warning	TSA	Benton, Washington	43 min
May 2, 4:11 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Sebastian, Washington	64 min
May 2, 4:26 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	79 min
May 2, 4:47 AM CDT	Tornado Warning	TSA	Benton	13 min
May 2, 5:10 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Sebastian, Washington	80 min
May 2, 6:12 AM CDT	Areal Flood Advisory	TSA	Franklin	30 days

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.