Alert archive / Arkansas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 284, NWS Tulsa, OK

July 20, 20004 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 20, 2000, 8:51 AM CDT for 4 counties in Arkansas. It was in force for 54 min. 8 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
Jul 20, 2000, 8:51 AM CDT (13:51 UTC)
Expired
Jul 20, 2000, 9:45 AM CDT
In force
54 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 105 km from the middle of the area, began a volume at 13:53 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
Jul 20, 8:55 AM CDTThunderstorm WindLowell, ARThunderstorm winds blew trees down onto a road.
Jul 20, 9:00 AM CDTThunderstorm WindEureka Spgs, ARThunderstorm winds blew down several large trees. A few of the trees fell on power lines and one tree fell on a van.
Jul 20, 9:00 AM CDTThunderstorm WindFayetteville, ARThunderstorm winds blew down several large tree limbs.
Jul 20, 9:08 AM CDTThunderstorm WindBerryville, ARThunderstorm winds blew trees down.
Jul 20, 9:10 AM CDTThunderstorm WindHuntsville, ARThunderstorm winds blew down a few large trees.
Jul 20, 9:10 AM CDTThunderstorm WindGreenland, ARThunderstorm winds blew a few large trees down.
Jul 20, 9:45 AM CDTThunderstorm WindSt Paul, ARThunderstorms winds blew tree down onto Highways 16 and 23.
Jul 20, 9:45 AM CDTThunderstorm WindWinslow, ARThunderstorm winds blew several trees down.

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, 1.9 hours before the alert went out and 82 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 2000-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1500 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 2000-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
1500 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 201354
SVRTUL
ARC007-015-087-143-201445-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
851 AM CDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHEASTERN BENTON COUNTY IN NORTHWEST ARKANSAS
  CARROLL COUNTY IN NORTHWEST ARKANSAS
  MADISON COUNTY IN NORTHWEST ARKANSAS
  WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 945 AM CDT

* AT 851 AM CDT SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WINDS UP TO
65 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 2 MILES EAST OF 
BEAVER TO 3 MILES SOUTH OF BALLARD...MOVING EAST AT 45 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...TONTITOWN...CINCINNATI...
  GREENLAND...BRENTWOOD...BLACKBURN...FARMINGTON...ELKINS...PRAIRIE
  GROVE...LINCOLN...WEST FORK...WINSLOW...SPRINGDALE...
  FAYETTEVILLE...CLIFTY...MARBLE...JAPTON...FORUM...HINDSVILLE...
  KINGSTON...WESLEY...AURORA...HUNTSVILLE...BEAVER...GRANDVIEW...
  URBANETTE...RULE...CARROLLTON...RUDD...OAK GROVE...GREEN FOREST...
  OSAGE...EUREKA SPRINGS...BERRYVILLE...WAR EAGLE...CAVE SPRINGS...
  LOWELL AND ROGERS.

STORM SPOTTERS REPORTED TREES DOWN AND SOME POWER OUTAGES IN THE 
SILOAM SPRINGS AREA AROUND 835 AM. THESE ARE DANGEROUS STORMS WITH A 
HISTORY OF WIND DAMAGE. TAKE SHELTER NOW! 

CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 3654 9373 3607 9464 35'72 9417 3636 9284

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 Jul 20, 4:10 AM CDT, 4 hours 41 minutes earlier.

Area forecast discussion, Jul 20, 4:10 AM CDT, 4 hours 41 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
410 AM CDT THU JUL 20 2000

COLD POOL HAS FORMED WITH THE CONVECTIVE COMPLEX IN KANSAS AND
STORMS ARE NOW MAKING A BEELINE RIGHT DOWN THE INSTABILITY AXIS
TOWARDS OUR FORECAST AREA. AS HAS BEEN THE CASE LATELY...MODELS ARE
LAGGING BEHIND OBSERVED RADAR DATA BY SEVERAL HOURS SO HAVE
BASICALLY FOLLOWED THE 06Z ETA MODEL AS THE BASIS FOR THIS FORECAST
BUT SPED IT UP A FEW HOURS.

WITH UPPER RIDGE RETROGRADING TODAY AND NORTHWEST FLOW INCREASING
ACROSS THE AREA...EXPECT THE COMPLEX TO MAKE ITS WAY ACROSS MUCH OF
THE FORECAST AREA TODAY SO WILL GO LIKELY POPS IN MOST AREAS EXCEPT
FOR CHANCE POPS DOWN NEAR THE RED RIVER. IT WILL BE ANOTHER HOT DAY
IN SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS AS THEY WILL HAVE
PLENTY OF TIME TO HEAT UP BEFORE THE STORMS ARRIVE BUT MUCH COOLER
WEATHER IS ON TAP FURTHER NORTH. TEMPERATURE RECOVERY THIS
AFTERNOON WILL BE HAMPERED BY DEBRIS CLOUDINESS AND ALSO COOL NORTH
TO NORTHEAST LOW LEVEL FLOW BEHIND THE COLD FRONT WHICH WILL GET A
GOOD KICK SOUTH TODAY FROM THE STORMS.

FORECAST TRICKIER BEYOND TODAY AS TIMING AND LOCATION OF ADDITIONAL
CONVECTIVE COMPLEXES WILL BE TOUGH TO PIN DOWN. WITH THE AIRMASS
STABILIZED BY TODAYS CONVECTION...MAIN SHOW TONIGHT MAY BE TO OUR
WEST BUT CONFIDENCE ON THIS IS NOT HIGH. WILL BROADBRUSH 50% POPS
ACROSS MOST OF THE AREA TONIGHT THROUGH FRIDAY NIGHT AS MOIST
AIRMASS WILL REMAIN IN PLACE AND BE CONDUCIVE TO SEVERAL ROUNDS OF
CONVECTION WITH TIMING AND LOCATION THE BIG UNKNOWNS AT THIS POINT.

PATTERN CHANGES LITTLE THROUGH THE WEEKEND SO WILL KEEP POPS GOING
THROUGH THE EXTENDED BUT LOWER THEM TO SLIGHT CHANCE MONDAY. WILL
SEE A WELCOME BREAK FROM THE HEAT FOR SEVERAL DAYS BUT THINGS START
WARMING BACK UP DURING THE FIRST PART OF NEXT WEEK.

GENERALLY UNDERCUT GUIDANCE MAXIMUM TEMPERATURES DUE TO CLOUDS AND
CONVECTION THE NEXT COUPLE DAYS BUT STAYED CLOSER TO GUIDANCE ON
MINIMUMS. WENT WAY ABOVE GUIDANCE POPS TODAY BASED ON CURRENT RADAR
AND MAY MAKE FURTHER ADJUSTMENTS TO POPS TODAY AT THE LAST MINUTE.

FCSTID = 5
TUL   87  70  85  68 /  70  50  50  50
FSM   98  71  89  70 /  60  30  50  40
MLC   98  72  87  70 /  50  30  50  40
BVO   84  68  83  66 /  70  50  50  50
FYV   90  69  84  66 /  70  50  50  50
BYV   90  69  84  66 /  70  50  50  50
MIO   86  68  83  66 o/  70  50  50  50
MKO   92  70  86  69 /  60  40  50  50
F10   92  70  86  69 /  60  40  50  50
HHW  100  73  90  71 /  30  30  40  30

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

PLATE

In the hours before

Local storm report, Jul 20, 7:58 AM CDT, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
758 AM CDT THU JUL 20 2000

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

075R0 AM    1 W PRYOR                 OK    WIND DAMAGE
07/20/00   MAYES                           LARGE TREE LIMBS DOWN 1
                                           WEST OF PRYOR
Local storm report, Jul 20, 8:09 AM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
809 AM CDT THU JUL 20 2000

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

0735 AM    TULSA                     OK    WIND DAMAGE
07/20/00   TULSA                           NUMEROUS POWER LINES
                                           REPORTED DOWN...VARIOUS
                                           PART OF NORTH TULSA
Local storm report, Jul 20, 8:26 AM CDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
826 AM CDT THU JUL 20 2000

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

0820 AM    LOCUST GROVE              OK    WIND DAMAGE
07/20/00   MAYES                           TREES DOWN OVER SH82
                                           NEAR LOCUST GROVE
Local storm report, Jul 20, 8:33 AM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
833 AM CDT THU JUL 20 2000

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

0810 AM    ZENA                      OK    WIND DAMAGE
07/20/00   DELAWARE                        POWER LINES DOWN NEAR
                                           ZENA
Local storm report, Jul 20, 8:38 AM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
838 AM CDT THU JUL 20 2000

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

0820 AM    8 W JAY                   OK    WIND DAMAGE
07/20/00   DELAWARE                        LARGE TREES DOWN WEST
                                           OF JAY ON SH28
Local storm report, Jul 20, 8:45 AM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
845 AM CDT THU JUL 20 2000

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

0825 AM    5 S PRYOR                 OK    WIND DAMAGE
07/20/00   MAYES                           MOBILE HOME DAMAGED

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:13 AM CDTSevere Thunderstorm WarningTSABenton47 min
Jul 20, 9:27 AM CDTSevere Thunderstorm WarningTSACrawford48 min
Jul 20, 9:44 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Sebastian, Washington46 min
Jul 20, 10:29 AM CDTSevere Thunderstorm WarningTSAFranklin31 min

Nearby

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