Alert archive / Arkansas / Tornado Warnings in 2008

Tornado Warning 5, NWS Tulsa, OK

January 7, 2008Benton County, Arkansas

NWS Tulsa, OK issued this tornado warning at Jan 7, 2008, 7:14 PM CST for Benton County, Arkansas. It was in force for 31 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: Jan 7, 2008, 7:14 PM CST (01:14 UTC)
Expired: Jan 7, 2008, 7:45 PM CST
In force: 31 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Benton County, AR

The radar

The Tulsa radar (KINX), 110 km from the middle of the area, began a volume at 01:17 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
Jan 7, 4:02 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 82 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: 765 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 281 m²/s²
0-3 km storm-relative helicity: 338 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 7.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 080115
TORTSA
ARC007-080145-
/O.NEW.KTSA.TO.W.0005.080108T0114Z-080108T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
714 PM CST MON JAN 7 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN BENTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 745 PM CST

* AT 713 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO FROM 10 MILES  
  WEST OF SILOAM SPRINGS TO 19 MILES SOUTHWEST OF SILOAM             
  SPRINGS...MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...MAYSVILLE...
  SILOAM SPRINGS...BELLA VISTA...HIWASSE...DECATUR...CAVE SPRINGS...
  HIGHFILL...SPRINGTOWN...GRAVETTE...GENTRY AND BENTONVILLE.

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 3650 9412 3629 9413 3621 9432 3621 9433
      3620 9433 3611 9440 3611 9456 3648 9461
      3649 9460
TIME...MOT...LOC 0114Z 217DEG 35KT 3624 9470 3604 9482

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 7, 7:42 PM CST	Tornado Warning	TSA	Benton	48 min
Jan 7, 8:09 PM CST	Tornado Warning	TSA	Benton, Washington	66 min
Jan 7, 8:24 PM CST	Flash Flood Warning	TSA	Benton, Washington	4 hr
Jan 7, 8:54 PM CST	Tornado Warning	TSA	Benton	66 min
Jan 7, 9:57 PM CST	Tornado Warning	TSA	Benton	63 min
Jan 7, 10:45 PM CST	Tornado Warning	TSA	Benton	60 min
Jan 7, 11:45 PM CST	Severe Thunderstorm Warning	TSA	Benton	35 min
Jan 8, 12:38 AM CST	Tornado Warning	TSA	Benton	19 min
Jan 8, 1:15 AM CST	Severe Thunderstorm Warning	TSA	Benton	60 min
Jan 8, 2:11 AM CST	Flash Flood Warning	TSA	Benton	3 hr
Jan 8, 2:17 AM CST	Severe Thunderstorm Warning	TSA	Benton, Carroll	58 min
Jan 8, 2:58 AM CST	Special Weather Statement	TSA	Washington	32 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.