Alert archive / Arkansas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 64, NWS Tulsa, OK

March 26, 2000Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 26, 2000, 5:34 PM CST for Sebastian County, Arkansas. It was in force for 41 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Mar 26, 2000, 5:34 PM CST (23:34 UTC)
Expired: Mar 26, 2000, 6:15 PM CST
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 13 km from the middle of the area, began a volume at 23:33 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

Time	Report	Where	Remark
Mar 26, 6:00 PM CST	Hail 0.75	Barling, AR
Mar 26, 6:17 PM CST	Hail 4.5	Lavaca, AR	Softball size hail fell in Lavaca likely damaging cars, roofs and windows.
Mar 26, 6:23 PM CST	Hail 1.75	Bloomer, AR
Mar 26, 6:25 PM CST	Tornado F0	Bloomer, AR	A tornado touched down just east of Bloomer and produced tree damage as it moved into Franklin 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.

Issued	Product	Office	Lasted
Mar 26, 4:00 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 194 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 4 J/kg
Mixed-layer CIN: -239 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 137 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 262336
SVRTUL
ARC131-270015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
534 PM CST SUN MAR 26 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 615 PM CST

* AT 534 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTH OF FORT SMITH...MOVING SOUTH
  AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...JENNY LIND...
BARLING AND FORT SMITH

HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH CAN BE 
EXPECTED IN THE WARNED AREA.

LAT...LON 3546 9429 354!4 9445 3521 9440 3525 9413

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 Mar 26, 3:05 PM CST, 2 hours 29 minutes earlier.

Area forecast discussion, Mar 26, 3:05 PM CST, 2 hours 29 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
305 PM CST SUN MAR 26 2000

CONVECTION SO FAR THIS AFTERNOON HAS FOCUSED ACROSS NORTHEAST
OKLAHOMA NORTH OF HIGHWAY 412. SURFACE BOUNDARY STILL WELL DEFINED
THIS AFTERNOON AND EXTENDED FROM NEAR KSWO TO KFSM AT 2030Z PER
OKLAHOMA MESONET WINDS. EXPECT DEVELOPMENT OF WIDELY SCATTERED
INTENSE THUNDERSTORMS SOMEWHERE NEAR THE BOUNDARY BY 22Z...WITH
ACTIVITY THEN MOVING SOUTHEAST THIS EVENING. COULD ALSO HAVE SOME
STRONG TO MARGINALLY SEVERE STORMS THROUGH THE EARLY EVENING HOURS
WELL NORTH OF THE BOUNDARY AS CURRENT ACTIVITY NORTH OF TULSA TRACKS
SOUTHEAST INTO NORTHWEST CORNER ARKANSAS.

EXPECT ALL STORMS TO DIMINISH IN INTENSITY AFTER DARK AND MOVE
RAPIDLY SOUTHEAST THIS EVENING. MOST OF THE ACTIVITY SHOULD BE OUT
OF THE FORECAST AREA BY MIDNIGHT. COLD FRONT WILL SWEEP ACROSS
REGION TONIGHT...WITH DRIER AIR AND SUBSIDENCE LEADING TO RAPIDLY
CLEARING SKIES BEHIND THE STORMS.

MONDAY LOOKS LIKE A DRY AND MOSTLY CLEAR DAY...AND IT MAY BE THE
ONLY DAY OF THE UPCOMING WORK WEEK WITHOUT A THREAT OF RAIN. MOSTLY
CLEAR SKIES AND DOWNSLOPING WINDS SHOULD ALLOW TEMPERATURES TO RISE
INTO THE 60S AND LOWER 70S MONDAY AFTERNOON.

NEXT IN THE ENDLESS SUPPLY OF SHORTWAVES WILL APPROACH THE AREA ON
TUESDAY. MOISTURE RETURN AND DEVELOPING BAROCLINIC ZONE WILL LEAD TO
WIDESPREAD SHOWERS/STORMS BY TUESDAY NIGHT ACROSS NORTHERN ZONES.

IN EXTENDED...WILL KEEP MENTION OF RAIN IN EACH DAY OF THE EXTENDED
WITH MRF CONTINUING TO SHOW AN UNSETTLED PATTERN ACROSS SOUTHERN
PLAINS. CURRENT THINKING IS THAT BROAD UPPER TROUGH IN VICINITY WILL
LEAD TO SCATTERED SHOWERS AND THUNDERSTORMS IN THE WEDNESDAY THROUGH
FRIDAY PERIOD...WITH BEST CHANCES ACROSS NORTHERN 1/2 FORECAST AREA.

PRELIMINARY FIRST PERIOD POPS BELOW ARE SUBJECT TO CHANGE BASED ON
RADAR TRENDS AT ZONE ISSUANCE TIME...

FCSTID = 9
TUL   48  68  46  68 /  30   0   0  30
FSM   48  72  42  71 /  40   0   0  20
MLC   50  71  45  74 /  30   0   0  20
BVO   46  68  41  67 /  30   0   0  30
FYV   44  65  38  68 /  40   0   0  20
BYV   44  64  38  67 /  40   0   0  20
MIO   48  68  46  68 /  30   0   0  30
MKO   49  69  44  70 /  30   0   0  30
F10   48  68  45  68 /  30   0   0  30
HHW   52  72  46  73 /  30   0   0  20

.TUL...
AR...NONE.
OK...SEVERE THUNDERSTORM WATCH UNTIL 800 PM CST FOR ZONES
OKZ049...OKZ053>054...OKZ059>062...OKZ064>076.

In the hours before

Local storm report, Mar 26, 2:53 PM CST, 2 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
253 PM CST SUN MAR 26 2000

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

024p5 PM    PRYOR                     OK    .75 INCH HAIL
03/26/00   MAYES

Local storm report, Mar 26, 3:10 PM CST, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
310 PM CST SUN MAR 26 2000

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

0245 PM    PRYOR                     OK    .75 INCH HAIL
03/26/00   MAYES

Local storm report, Mar 26, 4:31 PM CST, 1 hour 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
431 PM CST SUN MAR 26 2000

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

0245 PM    PRYOR                     OK    .75 INCH HAIL
03/26/00   MAYES                           REPORT FROM MAYES CO.

0401 PM    8 NE PRYOR                OK    .75 INCH HAIL
03/26/00   MAYES                           REPORT FROM MAYES COUNTY.

0402 PM    4 E PRYOR                 OK    .75 INCH HAIL
03/26/00   MAYES                           REPORT FROM MAYES COUNTY.

0416 PM    TULSA                     OK    1.75 INCH HAIL
03/26/00   TULSA                           QUARTE4R TO GOLFBALL
                                           SIZED HAIL AT CHANNEL 6
                                           STUDIOS.

DRM

Local storm report, Mar 26, 4:45 PM CST, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
445 PM CST SUN MAR 26 2000

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

0430 PM    TULSA                     OK    2.5 INCH HAIL
03/26/00   TULSA                           REPORTED BY OFF DUTY
                                           NWS EMPLOYEE.

0434 PM    ONAPA                     OK    1.75 INCH HAIL
03/26X/00   MCINTOSH                        REPORT FROM MCINTOSH
                                           COUNTY EOC.

Local storm report, Mar 26, 5:20 PM CST, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
520 PM CST SUN MAR 26 2000

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

0513 PM    PORUM                     OK    1.75 INCH HAIL
03/26/00   MUSKOGEE

Local storm report, Mar 26, 5:31 PM CST, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
531 PM CST SUN MAR 26 2000

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

0514 PM    1 E JAMESVILLE            OK    4.5 INCH HAIL
03/26/00   MUSKOGEE                        SPOTTER REPORT

0514 PM    1 E JAMESVILLE            OK    85 MPH TSTM GUST
03/26/00   MUSKOGEE                        SPOTTER REPORT

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 5:00 PM CST	Severe Thunderstorm Warning	TSA	Washington	45 min
Mar 26, 5:21 PM CST	Severe Thunderstorm Warning	TSA	Crawford	39 min
Mar 26, 5:25 PM CST	Tornado Warning	TSA	Crawford	50 min
Mar 26, 5:45 PM CST	Severe Thunderstorm Warning	TSA	Franklin, Madison, Washington	60 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2000 Every 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; radar from the NEXRAD Level II archive.