Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 447, NWS Tulsa, OK

November 23, 2001Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 23, 2001, 9:38 PM CST for Madison County, Arkansas. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 23, 2001, 9:38 PM CST (03:38 UTC)
Expired
Nov 23, 2001, 10:45 PM CST
In force
67 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 99 km from the middle of the area, began a volume at 03:37 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.

IssuedProductOfficeLasted
Nov 23, 6:00 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.6 hours before the alert went out and 99 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 2001-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 2001-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 351 square meters per square second.1939587897Sfc1 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
6 J/kg
Mixed-layer CIN
-199 J/kg
Mixed-layer LCL
970 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
351 m²/s²
0-3 km storm-relative helicity
377 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.

946 
WUUS54 KTSA 240339
SVRTUL
ARC087-240445-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
938 PM CST FRI NOV 23 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  MADISON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 1045 PM CST

* AT 938 PM CST...DOPPLER RADAR INDICATED A DANGEROUS SEVERE
  THUNDERSTORM 13 MILES WEST OF ST PAUL...MOVING NORTHEAST AT 40 MPH.
  RADAR INDICATED SOME ROTATION WITH THIS STORM. PEOPLE NEAR ITS PATH
  SHOULD MOVE TO A SAFE PLACE NOW

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... 
  HUNTSVILLE...ST PAUL...PETTIGREW...AURORA...WESLEY...KINGSTON...
  HINDSVILLE...WITTER AND JAPTON.

IF YOU ARE IN OR NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE 
LOWEST FLOOR. AVOID WINDOWS 

LARGE HAIL TO THE SIZE OF GOLFBALLS IS POSSIBLE WITH THIS SEVERE 
THUNDERSTORM. 

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

$$

DRM

LAT...LON 3577 9398 3576 9364 3612 9347 3616 9391

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 Nov 23, 9:10 PM CST, 28 minutes earlier.

Area forecast discussion, Nov 23, 9:10 PM CST, 28 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
910 PM CST FRI NOV 23 2001

CONVECTIVE SITUATION MOVING ALONG PRETTY MUCH AS PLANNED THIS
EVENING.  LATEST MODELS ALSO SUGGEST CURRENT FORECAST THINKING IS ON
TRACK.  LINE OF STORMS EXTENDING NORTH SOUTH ACROSS ENTIRE CWA WILL
CONTINUE TO MOVE TO THE EAST THROUGH THE AREA BY MIDNIGHT.  WILL
UPDATE ZONES SHORTLY TO ACCOUNT FOR CURRENT TRENDS AND BEGIN
REMOVING PORTIONS OF THE TORNADO WATCH.  ADDITIONAL UPDATES LIKELY
THIS EVENING.

HOWIESON
FCSTID = 44

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

In the hours before

Special weather statement, Nov 23, 5:35 PM CST, 4 hours 3 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-241200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
535 PM CST FRI NOV 23 2001

...UPDATE...

AN OUTBREAK OF SEVERE THUNDERSTORMS IS STILL EXPECTED ACROSS FAR
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS EVENING AND TONIGHT.

A POWERFUL STORM SYSTEM WAS MOVING SLOWLY ACROSS THE CENTRAL
PLAINS.  THIS SYSTEM SLOWED ITS PROGRESS TODAY AS IT CONTINUED TO
STRENGTHEN.  HOWEVER IT WILL ACCELERATE EAST TONIGHT AS STRONG
JET STREAM WINDS PUNCH INTO THE CENTRAL U.S.

SCATTERED THUNDERSTORMS WILL DEVELOP IN EASTERN OKLAHOMA AND
EXTREME WESTERN ARKANSAS BETWEEN 6PM AND 8PM AND QUICKLY BECOME
SEVERE. THE STORMS WILL FORM A LINE AND RACE ACROSS NORTHWEST
ARKANSAS...WITH THE THREAT DIMINISHING AFTER 2AM AS THE LINE EXITS
THE AREA.

VERY STRONG WIND FIELDS AND INCREASING INSTABILITY WILL PROMOTE STORM
ROTATION AND SUPERCELLS. THERE WILL BE A THREAT FOR TORNADOES AND
VERY LARGE HAIL FOR THE FIRST SEVERAL HOURS OF THE EVENT...WITH THE
THREAT TRANSITIONING TO DAMAGING WINDS AS THE STORMS FORM INTO A
LINE.

GIVEN THE FAST WINDS ALOFT THERE IS THE POTENTIAL FOR
STRUCTURAL DAMAGE IN THE MOST SEVERE STORMS.  PERSONS IN EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS SHOULD PAY CLOSE ATTENTION TO THE
WEATHER TONIGHT AND BE READY TO ACT.

STAY TUNED TO THIS STATION FOR FURTHER INFORMATION FROM THE NATIONAL
WEATHER SERVICE.
Local storm report, Nov 23, 6:52 PM CST, 2 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
652 PM CST FRI NOV 23 2001

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

0629 PM    MANSFIELD                 AR   0.75 INCH HAIL
11/23/01   SEBASTIAN                      SPOTTER RPT
Special weather statement, Nov 23, 9:15 PM CST, 23 minutes before
ARZ001-002-010-011-019-020-029-OKZ057-058-063-069-072-076-240500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
915 PM CST FRI NOV 23 2001

...TORNADO WATCH 163 HAS BEEN REMOVED FROM THE FOLLOWING COUNTIES...

IN EASTERN OKLAHOMA:
  OSAGE           WASHINGTON      NOWATA          ROGERS
  PAWNEE          MAYES           TULSA           CHEROKEE
  CREEK           WAGONER         MUSKOGEE        OKMULGEE
  OKFUSKEE        MCINTOSH        HASKELL         PITTSBURG
  LATIMER         PUSHMATAHA      CHOCTAW

...TORNADO WATCH 163 REMAINS IN EFFECT UNTIL 1100 PM CST FOR THE
FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA THIS WATCH INCLUDES:
  OTTAWA          CRAIG           DELAWARE        ADAIR

IN EAST CENTRAL OKLAHOMA THIS WATCH INCLUDES:
  SEQUOYAH

IN SOUTHEAST OKLAHOMA THIS WATCH INCLUDES:
  LE FLORE

IN NORTHWEST ARKANSAS THIS WATCH INCLUDES:
  CARROLL         BENTON          MADISON         WASHINGTON
  CRAWFORD

IN WEST CENTRAL ARKANSAS THIS WATCH INCLUDES:
  FRANKLIN        SEBASTIAN

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

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR
THE LATEST ON THIS SEVERE WEATHER EVENT. ADDITIONAL WEATHER
INFORMATION...INCLUDING RELATED GRAPHICS CAN BE FOUND AT:
WWW.SRH.NOAA.GOV/TULSA.

THE SEVERE WEATHER THREAT WILL CONTINUE ACROSS THE WATCH AREA.
RESIDENTS IN THESE AREAS SHOULD MONITOR THIS SITUATION CLOSELY AND BE
PREPARED IN CASE WARNINGS ARE ISSUED.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 6:23 PM CSTSevere Thunderstorm WarningTSASebastian52 min
Nov 23, 6:31 PM CSTSevere Thunderstorm WarningTSACrawford, Franklin44 min
Nov 23, 7:08 PM CSTSevere Thunderstorm WarningTSAMadison52 min
Nov 23, 7:13 PM CSTTornado WarningTSAFranklin47 min
Nov 23, 7:16 PM CSTSevere Thunderstorm WarningTSASebastian44 min
Nov 23, 7:21 PM CSTSevere Thunderstorm WarningTSACrawford54 min
Nov 23, 7:30 PM CSTTornado WarningTSABenton, Washington30 min
Nov 23, 7:57 PM CSTTornado WarningTSABenton, Washington63 min
Nov 23, 8:14 PM CSTTornado WarningTSACarroll46 min
Nov 23, 8:32 PM CSTSevere Thunderstorm WarningTSAFranklin43 min
Nov 23, 8:39 PM CSTSevere Thunderstorm WarningTSASebastian51 min
Nov 23, 8:48 PM CSTSevere Thunderstorm WarningTSACrawford57 min
Nov 23, 8:56 PM CSTTornado WarningTSAFranklin49 min
Nov 23, 9:13 PM CSTSevere Thunderstorm WarningTSASebastian47 min
Nov 23, 9:29 PM CSTSevere Thunderstorm WarningTSAFranklin46 min
Nov 23, 9:30 PM CSTSevere Thunderstorm WarningTSACrawford, Washington60 min
Nov 23, 9:42 PM CSTSevere Thunderstorm WarningTSABenton48 min
Nov 23, 9:45 PM CSTSevere Thunderstorm WarningTSASebastian45 min
Nov 23, 9:55 PM CSTFlash Flood WarningTSAFranklin2 hr
Nov 23, 10:14 PM CSTSevere Thunderstorm WarningTSAFranklin76 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.