Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 128, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 2003, 9:05 PM CDT for Sebastian County, Arkansas. It was in force for 40 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, 9:05 PM CDT (02:05 UTC)
- Expired
- May 6, 2003, 9:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 14 km from the middle of the area, began a volume at 02:07 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, 2.1 hours before the alert went out and 196 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
649 WUUS54 KTSA 070205 SVRTUL ARC131-070245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 904 PM CDT TUE MAY 6 2003 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS * UNTIL 945 PM CDT * AT 904 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF HARTFORD...MOVING NORTHEAST AT 35 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...HARTFORD... HACKETT...GREENWOOD...LAVACA...HUNTINGTON...MIDLAND...WASHBURN... BURNVILLE...EXCELSIOR...MANSFIELD...JENNY LIND AND BLOOMER. HAIL TO THE SIZE OF PENNIES CAN BE EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. LAT...LON 3522 9444 3493 9444 3513 9409 3540 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, 25 minutes earlier.
Area forecast discussion, May 6, 8:40 PM CDT, 25 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, 1:00 PM CDT, 8 hours 5 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-071100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT TUE MAY 6 2003 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT SEVERE WEATHER OUTLOOK ...SEVERE WEATHER OUTBREAK EXPECTED THIS AFTERNOON AND EVENING ACROSS PORTIONS OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... SURFACE LOW PRESSURE WAS LOCATED OVER NORTH-CENTRAL OKLAHOMA EARLY THIS AFTERNOON WITH A DRY LINE EXTENDING SOUTHWEST INTO SOUTHWEST OKLAHOMA. THUNDERSTORMS WILL LIKELY DEVELOP ALONG THE DRY LINE BY MID AFTERNOON ACROSS EASTERN OKLAHOMA...RAPIDLY BECOMING SEVERE. SUPERCELL THUNDERSTORMS ARE EXPECTED WITH HAIL UP TO THE SIZE OF BASEBALLS...DAMAGING DOWNBURST WINDS TO 70 MPH AND A FEW TORNADOES. THE GREATEST TORNADO THREAT THROUGH THIS EVENING WILL BE ACROSS FAR NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS...NORTH OF A BARTLESVILLE...FORT SMITH LINE. 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, 7:44 PM CDT, 1 hour 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0744 PM CDT TUE MAY 06 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0743 PM RYE HILL AR 0.75 IN HAIL
05/06/03 SEBASTIAN
SPLocal storm report, May 6, 7:47 PM CDT, 1 hour 18 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
SPLocal storm report, May 6, 7:49 PM CDT, 1 hour 16 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
SPLocal storm report, May 6, 7:57 PM CDT, 1 hour 8 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
SPLocal storm report, May 6, 8:20 PM CDT, 45 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
SPLocal storm report, May 6, 8:49 PM CDT, 16 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
GMThe 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, 10:10 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 80 min |
| May 7, 12:34 AM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 41 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2003Every 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.