Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 13, NWS Tulsa, OK

February 9, 2001Benton County, Carroll County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 9, 2001, 4:15 AM CST for Benton County, Carroll County, Madison County, Arkansas. It was in force for 60 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Feb 9, 2001, 4:15 AM CST (10:15 UTC)
Expired: Feb 9, 2001, 5:15 AM CST
In force: 60 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Benton County, AR, Carroll County, AR, Madison County, AR

The radar

The Western Arkansas radar (KSRX), 96 km from the middle of the area, began a volume at 10:14 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
Feb 9, 4:34 AM CST	Thunderstorm Wind	Cincinnati, AR	Thunderstorm winds blew a small shed over.
Feb 9, 5:15 AM CST	Thunderstorm Wind	Eureka Spgs, AR	Thunderstorm winds blew trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 9, 2:45 AM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.3 hours before the alert went out and 90 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: 69 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 556 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 362 m²/s²
0-3 km storm-relative helicity: 399 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 
WUUS54 KTSA 091016
SVRTUL
ARC007-015-087-143-OKC001-091115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
415 AM CST FRI FEB 9 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ADAIR COUNTY IN NORTHEAST OKLAHOMA
  BENTON COUNTY IN NORTHWEST ARKANSAS
  CARROLL COUNTY IN NORTHWEST ARKANSAS
  MADISON COUNTY IN NORTHWEST ARKANSAS
  WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 515 AM CST

* AT 415 AM CST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM BELLA VISTA TO CINCINNATI TO 9 MILES SOUTH OF
  STILWELL...MOVING EAST AT 60 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...TONTITOWN...
  CINCINNATI...GREENLAND...BRENTWOOD...STRICKLER...BLACKBURN...
  FARMINGTON...ELKINS...PRAIRIE GROVE...LINCOLN...WEST FORK...
  WINSLOW...SPRINGDALE...FAYETTEVILLE...CLIFTY...MARBLE...JAPTON...
  WITTER...BOSTON...FORUM...HINDSVILLE...KINGSTON...WESLEY...
  AURORA...PETTIGREW...ST PAUL...HUNTSVILLE...BEAVER...GRANDVIEW...
  URBANETTE...RULE...RUDD...OAK GROVE...GREEN FOREST...OSAGE...EUREKA
  SPRINGS...BERRYVILLE...GARFIELD...BELLA VISTA...HIWASSE...WAR
  EAGLE...CAVE SPRINGS...HIGHFILL...SPRINGTOWN...GATEWAY...PEA
  RIDGE...LOWELL...ROGERS...BENTONVILLE...WESTVILLE...BARON AND
  STILWELL.

DAMAGING WINDS MAY OCCUR UP TO 10 MILES AHEAD OF THE HEAVY RAIN
AND HAIL. MOVE TO A SAFE PLACE NOW.

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.

LAT...LON 3656 9436 3605 9457 3565 9479 3579 9422
          3578 9356 3612 9341 3648 9328

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 9, 3:41 AM CST	Severe Thunderstorm Warning	TSA	Benton	49 min
Feb 9, 4:15 AM CST	Severe Thunderstorm Warning	TSA	Washington	60 min
Feb 9, 4:32 AM CST	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	58 min
Feb 9, 4:32 AM CST	Severe Thunderstorm Warning	TSA	Franklin	58 min
Feb 9, 5:13 AM CST	Severe Thunderstorm Warning	TSA	Carroll, Madison	32 min
Feb 9, 5:27 AM CST	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	48 min
Feb 9, 5:43 AM CST	Severe Thunderstorm Warning	TSA	Carroll, Madison	32 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001 Every severe thunderstorm warning in 2001

Sources

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