Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 267, NWS Tulsa, OK

June 27, 2001Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 27, 2001, 2:25 PM CDT for Madison County, Arkansas. It was in force for 50 min. 1 report 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
Jun 27, 2001, 2:25 PM CDT (19:25 UTC)
Expired
Jun 27, 2001, 3:15 PM CDT
In force
50 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 100 km from the middle of the area, began a volume at 19:27 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
Jun 27, 2:46 PM CDTHail 1Forum, AR

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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.4 hours before the alert went out and 93 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 12:00Z on 2001-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 561 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2001-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
561 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1510 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
82 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 271927
SVRTUL

ARC087-272015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
225 PM CDT WED JUN 27 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

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

* UNTIL 315 PM CDT

* AT 225 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
  FORUM...MOVING LITTLE.

* FORUM AND SURROUNDING AREAS WILL BE AFFECTED BY THIS STORM. 

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA...ALONG WITH VERY HEAVY RAIN. 

LAT...LON 3593 9395 3597 9355 3622 9360 3625 9389

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 Jun 27, 10:10 AM CDT, 4 hours 15 minutes earlier.

Area forecast discussion, Jun 27, 10:10 AM CDT, 4 hours 15 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1010 AM CDT WED JUN 27 2001

BAND OF SHOWERS AND THUNDERSTORMS HAS SET UP ACROSS CENTRAL OK JUST
TO THE WEST OF THE AREA OVER THE PAST FEW HOURS.  ACTIVITY SHOULD
REMAIN JUST TO THE WEST AS STORMS DRIFTS TO THE SOUTH IN CIRCULATION
AROUND WESTERN SKY/TAN UPPER LOW.  OTHER CONVECTION ONGOING OVER
SOUTHWESTERN MO CLOSER TO THE UPPER LOW...WHILE ALLS QUIET OVER
EASTERN OK AND NORTHWEST AR FOR THE MOMENT.

MORNING SOUNDINGS SHOW MID LEVEL TEMPS (ROUGHLY 750MB AND ABOVE)
HAVE COOLER A FEW DEGREES OVER THE PAST 24 HOURS WITH UPPER LOW
DRAWING CLOSER.  WITH AFTERNOON HEATING...EXPECT CONVECTION TO FIRE
MAINLY IN EASTERN AREAS AGAIN SIMILAR TO YESTERDAY.

CURRENT FORECAST LOOKS FINE...SO WILL WAIT AND UPDATE AROUND 16Z.
WILL MAINLY JUST REMOVE ANY REFERENCE TO AFTERNOON WORDING...BUT SEE
IF TEMPS/WINDS NEED ANY TWEAKING AT THAT TIME.

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

In the hours before

Local storm report, Jun 27, 9:30 AM CDT, 4 hours 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
930 AM CDT WED JUN 27 2001

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

0430 PM    ST PAUL                   AR    WIND DAMAGE
06/26/01   MADISON                         NUMBEROUS TREE LIMBS
                                           DOWN PUBLIC REPORT
Local storm report, Jun 27, 12:22 PM CDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1222 PM CDT WED JUN 27 2001

DELAYED FROM TUESDAY JUNE 26...

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

0455 PM    1 E BALDWIN               AR    WIND DAMAGE
06/26/01   WASHINGTON                      SEVERAL TREES DOWN AND
                                           LARGE LIMBS DOWN (PUBLIC)

0455 PM    1 N BAL8DWIN               AR    .88 INCH HAIL
06/26/01   WASHINGTON                      (PUBLIC RPT)
Special weather statement, Jun 27, 1:15 PM CDT, 1 hour 10 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-281100-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
115 PM CDT WED JUN 27 2001

...ISOLATED SEVERE THUNDERSTORMS ARE EXPECTED ACROSS EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND EARLY EVENING...

UPPER LEVEL LOW PRESSURE WILL CONTINUE TO SLOWLY DRIFT WESTWARD
THROUGH TONIGHT AND MOVE INTO MISSOURI BY EARLY THURSDAY MORNING.
THIS ALONG WITH WARM SURFACE TEMPERATURES AND DEWPOINTS IN THE UPPER
60S TO NEAR 70 DEGREES WILL MAKE THE ATMOSPHERE UNSTABLE AND
CONDUCIVE TO THUNDERSTORM DEVELOPMENT THIS AFTERNOON AND EVENING.

IN ADDITION...AS THE LOW LEVEL JET STRENGTHENS ACROSS EASTERN
OKLAHOMA TONIGHT...SCATTERED THUNDERSTORMS WILL AGAIN BE POSSIBLE
AFTER MIDNIGHT. SOME OF THESE STORMS COULD BE STRONG WITH SMALL
HAIL...GUSTY WINDS AND VERY HEAVY RAIN.

.SPOTTER ACTIVATION...
ACTIVATION OF STORM SPOTTERS MAY BE NECESSARY ACROSS PORTIONS OF
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON.

.DISCUSSION...
COOL UPPER LEVEL TEMPERATURES ASSOCIATED WITH AN UPPER LEVEL LOW
PRESSURE SYSTEM HAVE COMBINED WITH WARM SURFACE TEMPERATURES TO
PRODUCE A MODERATELY UNSTABLE ATMOSPHERE THIS AFTERNOON.  WITH CAPE
VALUES IN THE 2000-3000 J/KG RANGE AND LIFTED INDEX VALUES TO -8
DEGREES C...ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON INTO THIS
EVENING.  IN ADDITION...AN OUTFLOW BOUNDARY FROM CONVECTION OVER
CENTRAL OKLAHOMA HAS DEVELOPED AND HAS MOVED INTO PORTIONS OF
EASTERN OKLAHOMA.  THIS BOUNDARY MAY ALSO HELP PROVIDE A FOCUS FOR
ADDITIONAL SHOWER AND THUNDERSTORM DEVELOPMENT THIS AFTERNOON.

LARGE HAIL...DAMAGING WINDS AND HEAVY RAINS WILL BE POSSIBLE WITH
ANY THUNDERSTORMS THAT DEVELOP.  DUE TO THE SLOW STORM MOVEMENTS
...LOCALIZED FLOODING WILL ALSO BE A THREAT.

THREAT TABLE
VALID THROUGH 1100 UTC THURSDAY
AREA 1...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS
THUNDERSTORM PROBABILITY...30
SEVERE PROBABILITY IF STORMS OCCUR...40
SIGNIFICANT SEVERE PROBABILITY IF STORMS OCCUR...10

THREAT AREAS DEFINE THE GREATEST RISK. PROBABILITIES ARE IN PERCENT.
SIGNIFICANT SEVERE IS DEFINED AS F1 OR GREATER WIND/TORNADO DAMAGE
AND/OR GOLF BALL SIZE HAIL OR LARGER.

RELATED GRAPHICAL INFORMATION CAN BE FOUND AT:WWW.SRH.NOAA.GOV/TULSA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 4:24 PM CDTSevere Thunderstorm WarningTSAFranklin, Madison51 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.