Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 397, NWS Tulsa, OK

September 8, 2001Carroll County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 8, 2001, 12:11 AM CDT for Carroll County, Madison County, Arkansas. It was in force for 64 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
Sep 8, 2001, 12:11 AM CDT (05:11 UTC)
Expired
Sep 8, 2001, 1:15 AM CDT
In force
64 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Carroll County, AR, Madison County, AR

The radar

The Western Arkansas radar (KSRX), 117 km from the middle of the area, began a volume at 05:08 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

TimeReportWhereRemark
Sep 8, 12:30 AM CDTThunderstorm Wind 61 ECountywide, ARThunderstorm winds estimated at 70 miles an hour blew several trees down across Carroll county.
Sep 8, 1:25 AM CDTThunderstorm Wind 61 ECountywide, ARThunderstorm winds estimated at 70 miles an hour blew trees and power lines down across Carroll county.

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.

IssuedProductOfficeLasted
Sep 7, 10:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.2 hours before the alert went out and 79 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2001-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 932 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2001-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
932 J/kg
Mixed-layer CIN
-149 J/kg
Mixed-layer LCL
2014 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
178 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.

858 
WUUS54 KTSA 080511
SVRTUL
ARC015-087-080615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1211 AM CDT SAT SEP 8 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTHWEST ARKANSAS
  MADISON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 115 AM CDT

* AT 1211 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 18 MILES WEST OF BEAVER TO 14 MILES WEST OF
  HINDSVILLE TO 24 MILES SOUTHWEST OF WESLEY...MOVING EAST AT 65 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...CLIFTY...
  MARBLE...JAPTON...WITTER...BOSTON...FORUM...HINDSVILLE...
  KINGSTON...WESLEY...AURORA...PETTIGREW...ST PAUL...HUNTSVILLE...
  BEAVER...GRANDVIEW...URBANETTE...RULE...CARROLLTON...RUDD...OAK
  GROVE...GREEN FOREST...OSAGE...EUREKA SPRINGS AND BERRYVILLE.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 65 MPH CAN BE EXPECTED 
IN THE WARNED AREA.

LAT...LON 3650 9387 3614 9392 3577 9398 3579 9353
          3615 9332 3649 9331

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 Sep 7, 7:07 PM CDT, 5 hours 4 minutes earlier.

Area forecast discussion, Sep 7, 7:07 PM CDT, 5 hours 4 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
707 PM CDT FRI SEP 7 2001

WILL UPDATE FOR NEW TORNADO WATCH NUMBER 720 IN EFFECT UNTIL
MIDNIGHT.

MESONET WINDS AND 3 HOURLY PRESSURE FALLS SUGGEST THAT TORNADO
THREAT SHUD REMAIN N OF I-40.  PRIMARY SEVERE WEATHER
THREAT...HOWEVER...WILL BE LARGE HAIL AND DAMAGING WINDS.

ALSO PUSHED OFF POPS FOR FAR SE OK AND NW AR UNTIL AFTER MIDNIGHT.

UPDATE OUT AROUND 715 PM.

FCSTID = 18

.TSA...
AR...NONE.
OK...TORNADO WATCH UNTIL MIDNIGHT CDT SATURDAY FOR ZONES
OKZ054>068...OKZ070>071...OKZ073.

In the hours before

Special weather statement, Sep 7, 9:13 PM CDT, 2 hours 58 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-081200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
913 PM CDT FRI SEP 7 2001

...UPDATE FOR TORNADO WATCH NUMBER 720...

.DISCUSSION...
AT 9PM THE LOW-LEVEL INSTABILITY AXIS EXTENDED FROM NEAR JOPLIN TO
MCALESTER.  THE LINE OF THUNDERSTORMS WILL CONTINUE SEVERE AS IT
CROSSES THIS AXIS...BUT SHOULD BEGIN TO WEAKEN AS IT MOVES PAST
THE THE GREATEST INSTABILITY AND AS THE ASSOCIATED UPPER-LEVEL
SYSTEM WEAKENS AND ACCELERATES NORTHEAST AWAY FROM THE REGION.

THE THREAT FOR SEVERE WEATHER IN WESTERN ARKANSAS AND FAR SOUTHEAST
OKLAHOMA WILL BE LIMITED IF THE STORMS WEAKEN AS EXPECTED.

SEE SHORT TERM FORECASTS FOR THE LATEST PROJECTIONS ON THIS LINE
OF SEVERE STORMS.
Local storm report, Sep 7, 9:37 PM CDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
937 PM CDT FRI SEP 07 2001

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

0935 PM    MAZIE                     OK    65 MPH TSTM GUST
09/07/01   MAYES                           SPOTTER REPORT.
Special weather statement, Sep 7, 10:06 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1006 PM CDT FRI SEP 7 2001

OKZ057-058-062-063-065>068-070-071-073-080400-
CHEROKEE-CRAIG-DELAWARE-MAYES-MCINTOSH-MUSKOGEE-OKFUSKEE-OKMULGEE-
OTTAWA-PITTSBURG-WAGONER-
1006 PM CDT FRI SEP 7 2001

TORNADO WATCH NUMBER 720 REMAINS IN EFFECT UNTIL MIDNIGHT FOR THE
FOLLOWING OKLAHOMA COUNTIES...

CHEROKEE...CRAIG...DELAWARE...MAYES...MCINTOSH...MUSKOGEE...
OKFUSKEE...OKMULGEE...OTTAWA...PITTSBURG AND WAGONER COUNTIES.

THE LINE OF THUNDERSTORMS WILL CONTINUE SEVERE FOR THE NEXT COUPLE
OF HOURS AS IT MOVES ACROSS PARTS OF EASTERN OKLAHOMA.

OKZ056-060-061-064-080400-
CREEK-NOWATA-ROGERS-TULSA-
1006 PM CDT FRI SEP 7 2001

TORNADO WATCH NUMBER 720 HAS BEEN CANCELED IN CREEK...NOWATA...
ROGERS AND TULSA COUNTIES.  THE LINE OF SEVERE STORMS HAS MOVED
OUT OF THESE COUNTIES AND THE THREAT FOR SEVERE WEATHER HAS ENDED.
Special weather statement, Sep 7, 10:13 PM CDT, 1 hour 58 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-080515-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1013 PM CDT FRI SEP 7 2001

...UPDATE FOR TORNADO WATCH NUMBER 720...

TORNADO WATCH NUMBER 720 FOR PARTS OF EASTERN OKLAHOMA WILL BE
REPLACED BY A SEVERE THUNDERSTORM WATCH THAT WILL COVER PARTS OF
EASTERN OKLAHOMA AND MUCH NORTHWEST ARKANSAS.

.DISCUSSION...
THE LINE OF THUNDERSTORMS MOVING ACROSS EASTERN OKLAHOMA WILL
CONTINUE SEVERE THROUGH MIDNIGHT WITH SOME WEAKENING LIKELY
THEREAFTER.  HOWEVER THE POTENTIAL FOR STRONG WINDS MAY CONTINUE INTO
THE OVERNIGHT HOURS AND A SEVERE THUNDERSTORM WATCH WILL BE ISSUED
SOON FOR MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
Special weather statement, Sep 7, 11:03 PM CDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1103 PM CDT FRI SEP 7 2001

OKZ057-058-062-065>067-080900-
CRAIG-MAYES-OKFUSKEE-OKMULGEE-OTTAWA-WAGONER-
1103 PM CDT FRI SEP 7 2001

...TORNADO WATCH NUMBER 720 HAS BEEN CANCELLED...

TORNADO WATCH NUMBER 720 HAS BEEN CANCELLED FOR CRAIG...MAYES...
OKFUSKEE...OKMULGEE...OTTAWA AND WAGONER COUNTIES.

ARZ001-002-010-011-019-020-029-OKZ049-053-063-068>076-080900-
ADAIR-BENTON-CARROLL-CHEROKEE-CHOCTAW-CRAWFORD-DELAWARE-FRANKLIN-
HASKELL-LATIMER-LE FLORE-MADISON-MCINTOSH-MUSKOGEE-PITTSBURG-
PUSHMATAHA-SEBASTIAN-SEQUOYAH-WASHINGTON AR-
1103 PM CDT FRI SEP 7 2001

...SEVERE THUNDERSTORM WATCH NUMBER 724 REMAINS IN EFFECT THROUGH
   400 AM...

SEVERE THUNDERSTORM WATCH NUMBER 724 REPLACES PARTS OF TORNADO WATCH
720 IN PORTIONS OF EASTERN OKLAHOMA AND INCLUDES ALL OF SOUTHEAST
OKLAHOMA AND NORTHWEST ARKANSAS.

IN EASTERN OKLAHOMA THE WATCH INCLUDES: ADAIR...CHEROKEE...
CHOCTAW...DELAWARE...HASKELL...LATIMER...LE FLORE...MCINTOSH...
MUSKOGEE...PITTSBURG...PUSHMATAHA AND SEQUOYAH COUNTIES.

IN NORTHWEST ARKANSAS THE WATCH INCLUDES: BENTON...CARROLL...
MADISON...CRAWFORD...FRANKLIN...SEBASTIAN AND WASHINGTON COUNTIES.
Local storm report, Sep 7, 11:44 PM CDT, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1144 PM CDT FRI SEP 07 2001

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

1130 PM    TAHLEQUAH                 OK   WIND DAMAGE
09/07/01   CHEROKEE                       LARGE LIMBS DOWNED.
                                          REPORTED BY CHEROKEE
                                          S.O.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 10:14 PM CDTSevere Thunderstorm WarningTSABenton61 min
Sep 7, 11:38 PM CDTSevere Thunderstorm WarningTSABenton, Washington67 min
Sep 7, 11:59 PM CDTSevere Thunderstorm WarningTSACrawford61 min
Sep 8, 12:06 AM CDTSevere Thunderstorm WarningTSASebastian54 min
Sep 8, 12:36 AM CDTSevere Thunderstorm WarningTSAFranklin69 min
Sep 8, 12:44 AM CDTSevere Thunderstorm WarningTSAWashington31 min
Sep 8, 1:13 AM CDTSevere Thunderstorm WarningTSACarroll, Madison47 min
Sep 8, 5:37 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin38 min
Sep 8, 6:16 PM CDTSevere Thunderstorm WarningTSAFranklin44 min
Sep 8, 6:30 PM CDTSevere Thunderstorm WarningTSASebastian60 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001Every 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.