Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 130, NWS Tulsa, OK

May 6, 2003Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 2003, 10:10 PM CDT for Washington County, Arkansas. It was in force for 80 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 6, 2003, 10:10 PM CDT (03:10 UTC)
Expired: May 6, 2003, 11:30 PM CDT
In force: 80 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Washington County, AR

The radar

The Western Arkansas radar (KSRX), 76 km from the middle of the area, began a volume at 03:14 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 6, 6:55 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.2 hours before the alert went out and 114 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: 2206 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1529 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 14.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 070310
SVRTUL
ARC143-070430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1010 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 1130 PM CDT

* AT 1010 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
  LINCOLN...MOVING NORTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  FAYETTEVILLE...SPRINGDALE...WEST FORK...LINCOLN...PRAIRIE GROVE...
  ELKINS...FARMINGTON AND GREENLAND.

HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE
STORM HAS PASSED.

LAT...LON 3594 9460 3582 9444 3591 9396 3625 9407

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 8:40 PM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, May 6, 8:40 PM CDT, 1 hour 30 minutes before

MESOSCALE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
840 PM CDT TUE MAY 6 2003

ISOLATED SEVERE CELL CONTINUES TO TRACK INTO SOUTHERN LE FLORE
COUNTY...THIS CELL IS MOVING INTO WEAKER DEEP LAYER SHEAR...BUT
INSTABILITY REMAINS HIGH...SO THE CELL IS LIKELY TO REMAIN SEVERE
FOR THE NEXT 1 TO 2 HOURS.

CELLS IN NORTH TEXAS ARE IN STRONGER DEEP LAYER SHEAR AND HAVE
SUPERCELL CHARACTERISTICS...BUT SHOULD TRACK SOUTH OF CHOCTAW COUNTY.

THE MERGED DRY LINE AND COLD FRONT WILL MOVE TO THE SOUTHEAST TO BE
NEAR A ROGERS...FORT SMITH HUGO LINE AT 1AM.

THE ATMOSPHERE IMMEDIATELY AHEAD OF THE BOUNDARY IS LIKELY TOO
WORKED OVER FROM THE CONVECTION TO SUPPORT NEW DEVELOPMENT...SO THE
SEVERE THREAT WILL LIKELY BE CONFINED TO JUST AHEAD OF THE CURRENT
ACTIVITY.

FORECAST ID= 08

.TSA...
AR...NONE.
OK...NONE.

Hazardous weather outlook, May 6, 9:11 PM CDT, 59 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-071100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
911 PM CDT TUE MAY 6 2003

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TONIGHT

SEVERE WEATHER OUTLOOK

THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL CONTINUE THROUGH
MIDNIGHT IN FAR SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.

CURRENT THUNDERSTORM ACTIVITY WILL CONTINUE TO HAVE A WIND AND HAIL
THREAT FOR THE NEXT FEW HOURS.  THIS ACTIVITY WILL SHIFT OUT OF THE
AREA BY MIDNIGHT AND THE THREAT FOR SEVERE WEATHER SHOULD END AT
THAT TIME.

WARNING PROBABILITIES FOR SEVERE THUNDERSTORMS AND TORNADOES CAN BE
FOUND IN THE OUTLOOK SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN
PROBABILITIES REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT
YOUR LOCATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
AN ACTIVE SPRING WEATHER PATTERN WILL CONTINUE INTO THE WEEKEND AS A
SERIES OF DISTURBANCES MOVES ACROSS THE SOUTHERN PLAINS AND A
SURFACE BOUNDARY REMAINS OVER THE AREA. IT APPEARS THE BEST CHANCES
OF SEVERE WEATHER WILL OCCUR WEDNESDAY NIGHT AND THURSDAY...AND
AGAIN ON SATURDAY. A MORE STABLE PATTERN MAY FINALLY TAKE OVER BY
EARLY NEXT WEEK.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON.   A TORNADO
WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS UNTIL 700 PM.  EMERGENCY MANAGEMENT PERSONNEL SHOULD
CONTINUE TO CLOSELY MONITOR THE LATEST WEATHER CONDITIONS...AS
WARNINGS WILL LIKELY BE ISSUED LATER THIS AFTERNOON.

ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA

In the hours before

Local storm report, May 6, 7:47 PM CDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0747 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0741 PM    FORT SMITH                AR   0.75 IN HAIL
05/06/03   SEBASTIAN

0745 PM    BONANZA                   AR   1.00 IN HAIL
05/06/03   SEBASTIAN

0745 PM    HACKETT                   AR   1.00 IN HAIL
05/06/03   SEBASTIAN

SP

Local storm report, May 6, 7:49 PM CDT, 2 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0749 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0748 PM    GREENWOOD                 AR   0.75 IN HAIL
05/06/03   SEBASTIAN

0749 PM    RYE HILL                  AR   1.00 IN HAIL
05/06/03   SEBASTIAN

SP

Local storm report, May 6, 7:57 PM CDT, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0757 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0513 PM    INDIANOLA                 OK   0.88 IN HAIL
05/06/03   PITTSBURG

0520 PM    5 W EUFAULA               OK   0.88 IN HAIL
05/06/03   MCINTOSH

0531 PM    CROWDER                   OK   1.00 IN HAIL
05/06/03   PITTSBURG

SP

Local storm report, May 6, 8:20 PM CDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0820 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0817 PM    7 N TALIHINA              OK   1.00 IN HAIL
05/06/03   LE FLORE

SP

Local storm report, May 6, 8:49 PM CDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0849 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0600 PM    SILOAM SPRINGS            AR   WIND DAMAGE
05/06/03   BENTON                         TREE LIMBS DOWN

0557 PM    5 WNW WESTVILLE           OK   64 MPH TSTORM WIND
05/06/03   ADAIR                          MESONET MEASUREMENT

GM

Local storm report, May 6, 9:12 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0912 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0820 PM    TALIHINA                  OK   1.00 IN HAIL
05/06/03   LE FLORE

0817 PM    CLAYTON                   OK   1.00 IN HAIL
05/06/03   PUSHMATAHA

0810 PM    YANUSH                    OK   0.75 IN HAIL
05/06/03   LATIMER

0805 PM    STANLEY                   OK   0.75 IN HAIL
05/06/03   PUSHMATAHA

0717 PM    PANAMA                    OK   70 MPH TSTORM WIND
05/06/03   LE FLORE                       ESTIMATED WIND BY SPOTTER

0455 PM    OKTAHA                    OK   1.00 IN HAIL
05/06/03   MUSKOGEE

GM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:07 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	53 min
May 6, 7:26 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	49 min
May 6, 7:44 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	76 min
May 6, 7:52 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	38 min
May 6, 9:05 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	40 min
May 7, 12:34 AM CDT	Severe Thunderstorm Warning	TSA	Sebastian	41 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2003 Every severe thunderstorm warning in 2003

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.