Alert archive / Arkansas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 305, NWS Tulsa, OK

September 3, 2000Sebastian County, Arkansas; LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 3, 2000, 4:47 PM CDT for Sebastian County, Arkansas; LeFlore County, Oklahoma. It was in force for 43 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
Sep 3, 2000, 4:47 PM CDT (21:47 UTC)
Expired
Sep 3, 2000, 5:30 PM CDT
In force
43 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Sebastian County, AR, LeFlore County, OK

What was reported inside it

TimeReportWhereRemark
Sep 3, 4:52 PM CDTThunderstorm WindPocola, OKThunderstorm winds blew down numerous power lines.

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, 9.8 hours before the alert went out and 200 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 2000-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 705 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 2000-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939Sfc1 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
705 J/kg
Mixed-layer CIN
-267 J/kg
Mixed-layer LCL
2266 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 032149
SVRTUL
ARC131-OKC079-032230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
447 PM CDT SUN SEP 3 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  SOUTHWESTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 530 PM CDT

* AT 447 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM      
   OVER POCOLA...MOVING SOUTH AT 10 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BONANZA...
  HACKETT...POCOLA AND CAMERON.

WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA.

LAT...LON 3531 9442 3527 9454 3498 9456 3503 9435

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 3, 3:33 PM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, Sep 3, 3:33 PM CDT, 1 hour 14 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
333 PM CDT SUN SEP 3 2000

SCATTERED THUNDERSTORMS DEVELOPING FROM IN A BAND FROM
NEAR SWO-MLC-FSM WITH SOME OTHER DEVELOPMENT LIKELY
E OF FYV. WILL INCLUDE SOME POPS INTO EARLY THIS EVE IN
THOSE AREAS.

BIG PROB THIS FORECAST IS AMOUNT OF COOLING COMING WITH BACKDOOR
FRONT THAT WILL PUSH INTO THE AREA LATE MONDAY AND TUE. AVN
STRONGEST WITH COOLING DROPING 850 MB TEMPS TO 19 DEGS. NGM/UKMET
ARE A FEW DEGS C WARMER AT 850 AND ETA REMAINS WARMEST KEEPING
THINGS AT OR A FEW DEGS ABOVE 100 ON TUE. ALL MODELS SHOW LOW
LEVEL WINDS BECOMING E/NE WHICH ON ITS OWN WILL CUT A DEG
OR TWO FROM MAXES. WILL SIDE WITH ETA AND SHAVE A FEW DEGS
FROM MAXES MONDAY AND ABOUT 5 DEGS ON TUE. MID/HI CLOUDS
COULD ALSO HELP OUT SOME. UPPER HIGH FCST TO SHIFT SLIGHTLY
NW OF THE AREA WITH CORE OF HEAT ALSO SHIFTING THAT WAY DURING
THE WEEK. WE'LL STILL BE HOT WITH TEMPS IN THE 90S TO NEAR 100
BUT WILL PLAN ON NOT BEING IN THE 105 TO 110 RECORD BREAKING
RANGE AFTER TOMORROW. DOESN'T LOOK LIKE THE CHANCES FOR RAIN
WILL IMPROVE ANY AND WILL LIKELY CONTINUE TO SEE ISOLATED
THUNDERSTORMS DEVELOP IN THE AFTERNOON WITH BOUNDARY IN THE
AREA MONDAY AND TUESDAY. WILL LEAVE WEDNESDAY THRU FRIDAY DRY AND
HOT WITH A WEAK SURFACE PRESSURE PATTERN UNDER THE UPPER HIGH THAT
THE ECMWF AND MRF SHOW BREAKING DOWN BY THE WEEKEND.

FAN/FWC MAX TEMPS REMAIN TOO COOL WITH MINS NOT BAD. LOOKED BACK AT
SOME TEMP DATA FOR SEP 1998 WHEN WE HAD A PERIOD OF 100-105 TEMPS.
FAN HAD TEMPS BUSTS OF 15 TO 20 DEGS THEN TOWARDS THE END OF THE
HOT PERIOD...FWC ALSO WAS ABOUT 10 DEGS TOO COOL.

FCSTID = 13
TUL   75 105  73 100 /   0  10   0  10
FSM   73 105  74 100 /  10  10  10  10
MLC   73 107  72 102 /  10  10  10  10
BVO   68 106  70 101 /   5  10   0  10
FYV   67 100  68  95 /  10  10  10  10
BYV   67  99  67  94 /  10  10  1l0  10
MIO   68 106  70  98 /   5  10   0  10
MKO   75 105  73 100 /   0  10   0  10
F10   75 105  73 100 /   0  10   0  10
HHW   73 107  72 102 /  10  10  10  10

.TUL...
AR...NONE.
OK...NONE.

In the hours before

Local storm report, Sep 3, 3:52 PM CDT, 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
352 PM CDT SUN SEP 03 2000

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

0250 PM    4 WNW OZARK               AR    WIND DAMAGE
09/03/00   FRANKLIN                        EXTENSIVE DAMAGE TO
                                           POULTRY
                                           HOUSES...BARN...AND
                                           LARGE TREE. RPTD BY
                                           OWNER.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 2:43 PM CDTSevere Thunderstorm WarningTSAFranklin47 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2000Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000

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.