Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 366, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 21, 1998, 4:01 AM CDT for Benton County, Washington County, Arkansas. It was in force for 59 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
- Jun 21, 1998, 4:01 AM CDT (09:01 UTC)
- Expired
- Jun 21, 1998, 5:00 AM CDT
- In force
- 59 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Benton County, AR, Washington County, AR
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 9.0 hours before the alert went out and 91 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.
- Mixed-layer CAPE
- 2527 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1023 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 299 m²/s²
- 0-3 km storm-relative helicity
- 547 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 12.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 210901 RRA SVRTUL ARC007-143-211000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 401 AM CDT SUN JUN 21 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BENTON COUNTY IN NORTHWESTERN ARKANSAS WASHINGTON COUNTY IN NORTHWESTERN ARKANSAS * UNTIL 500 AM CDT * AT 400 AM...NATIONAL WEATHER SERVICE RADAR DETECTED A LINE OF SEVERE THUNDERSTORMS FROM JAY TO SCRAPER TO 10 MILES WEST OF COOKSON...MOVING EAST AT 35 MPH. * SOME LOCATIONS AFFECTED INCLUDE... MAYSVILLE GENTRY LINCOLN PRAIRIE GROVE HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 70 MPH CAN BE EXPECTED IN THE WARNED AREA. t BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
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 20, 9:50 PM CDT, 6 hours 11 minutes earlier.
Area forecast discussion, Jun 20, 9:50 PM CDT, 6 hours 11 minutes before
FPUS3 KTUL 210253 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 950 PM CDT SAT JUN 20 1998 ZONES HAVE BEEN UPDATED TO ADD CHANCE POPS FOR MOST ZONES AND TO TWEAK WINDS AND TEMPS. COLD FRONT HAS FIRED UP OVER SE KANSAS AND THESE STORMS IF THEY SURVIVE WILL EVENTUALLY MOVE SOUTHEASTWARD OVER MUCH OF NE OK AND NW AR BY LATE TONIGHT. THE STORMS WILL LIKELY DEVELOP INTO A COMPLEX WHICH WOULD BRING A DECENT CHANCE OF SEVERE WEATHER TO THE AREA IN THE FORM PRIMARILY OF DAMAGING STRAIGHT-LINE WINDS. THE FRONT AND POSSIBLE PRECIP WILL PLAY HAVOC WITH LOW TEMPS. ...19... .TUL... OK...HEAT ADVISORY FOR TONIGHT THROUGH SUNDAY NIGHT FOR ZONES OKZ049...OKZ053>056...OKZ059>061...OKZ064>067...OKZ070>077. AR...HEAT ADVISORY FOR TONIGHT THROUGH SUNDAY NIGHT FOR ZONES ARZ019>020...ARZ029.
In the hours before
Local storm report, Jun 20, 10:59 PM CDT, 5 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1059 PM CDT SAT JUN 20 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1035 PM BIXBY OK NON TSTM WINDS
06/20/98 TULSA A MEASURED WIND GUST TO 61
MPH OCCURRED IN BIXBY.
THIS WIND WAS A DRY
MICROBURST AND RESULTED IN
A 10 DEGREE TEMPERATURE
JUMP TO 95 DEGREESSpecial weather statement, Jun 20, 11:21 PM CDT, 4 hours 40 minutes before
OKZ054-059-060-064-066-067-070-210445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1121 PM CDT SAT JUN 20 1998 A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 1215 AM FOR OSAGE... PAWNEE...CREEK AND TULSA COUNTIES AND UNTIL 100 AM FOR OKMULGEE... MUSKOGEE AND WAGONER COUNTIES. HIGH LEVEL MOISTURE...ASSOCIATED WITH THE REMNANTS OF EARLIER THUNDERSTORMS...IS CONTRIBUTING TO CONDITIONS FAVORABLE FOR HEAT BURSTS. THESE HEAT BURSTS ARE OCCURRING RANDOMLY ACROSS THE WARNING AREA AND AFFECTING SMALL AREAS...BUT WHEN THEY OCCUR WINDS GUST TO AROUND 60 MPH AND THE TEMPERATURE JUMPS WELL INTO THE 90S AND REACHES NEAR 100 DEGREES AT TIMES. BETWEEN 1020 AND 1040 PM A HEAT BURST OCCURRED IN SOUTH TULSA COUNTY WITH WINDS TO 60 MPH REPORTED IN BIXBY...POWER LINES REPORTED DOWN AT 91ST AND GARNETT IN SOUTHEAST TULSA AND TEMPEATURES NEAR 100 DEGREES REPORTED AT A NUMBER OF SPOTS IN SOUTH TULSA. CONDITIONS WILL REMAIN FAVORABLE FOR HEAT BURSTS IN THE WARNING AREAS. THESE WINDS WILL STRIKE SUDDENLY AND WITHOUT RAIN OR LIGHTNING. DAMAGE TO TREES AND POWER LINES MAY OCCUR. THE GREATEST RISK FOR ADDITIONAL HEAR BURSTS APPEARS TO BE FROM AROUND BROKEN ARROW TO NEAR COWETA AND HASKELL. STAY TUNED TO THIS STATION FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE.
Local storm report, Jun 21, 3:01 AM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
301 AM CDT SUN JUN 21 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0145 AM WYNONA OK 58 MPH TSTM GUST
06/21/98 OSAGE MEASURED AT OKLAHOMA
MESONET SITE 2 MILES SOUTH
OF WYNONA
0153 AM HOMINY OK 80 MPH TSTM GUST
06/21/98 OSAGE TREES ALSO BLOWN DOWN
0155 AM JENNINGS OK 75 MPH TSTM GUST
06/21/98 PAWNEE TREE LIMBS ALSO BLOWN DOWN
0156 AM JENNINGS OK 96 MPH TSTM GUST
06/21/98 PAWNEE
0200 AM HOMINY OK 1.75 INCH HAIL
06/21/98 OSAGE
0232 AM SAND SPGS OK 70 MPH TSTM GUST
06/21/98 TULSA POWER LINES ALSO BLOWN
DOWN.
0232 AM TULSA OK WIND DAMAGE
06/21/98 TULSA TRANSFORMERS BLOWING UP IN
NORTH TULSA
0240 AM TULSA OK 65 MPH TSTM GUST
06/21/98 TULSA IN EAST TULSA
0240 AM TULSA OK 95 MPH TSTM GUST
06/21/98 TULSA NEAR US HWY 75 AND APACHE
0242 AM TULSA OK 90 MPH TSTM GUST
06/21/98 TULSA CHANNEL 6 REPORTED 85 TO
90 MPH WINDS DOWNTOWN
0245 AM BROKEN ARROW OK 65 MPH TSTM GUST
ALONG TULSA AND WAGONER
COUNTY LINES NEAR 91ST
STREETLocal storm report, Jun 21, 3:01 AM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
301 AM CDT SUN JUN 21 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0145 AM WYNONA OK 58 MPH TSTM GUST
06/21/98 OSAGE MEASURED AT OKLAHOMA
MESONET SITE 2 MILES SOUTH
OF WYNONA
0153 AM HOMINY OK 80 MPH TSTM GUST
06/21/98 OSAGE TREES ALSO BLOWN DOWN
0155 AM JENNINGS OK 75 MPH TSTM GUST
06/21/98 PAWNEE TREE LIMBS ALSO BLOWN DOWN
0156 AM JENNINGS OK 96 MPH TSTM GUST
06/21/98 PAWNEE
0200 AM HOMINY OK 1.75 INCH HAIL
06/21/98 OSAGE
0232 AM SAND SPGS OK 70 MPH TSTM GUST
06/21/98 TULSA POWER LINES ALSO BLOWN
DOWN.
0232 AM TULSA OK WIND DAMAGE
06/21/98 TULSA TRANSFORMERS BLOWING UP IN
NORTH TULSA
0240 AM TULSA OK 65 MPH TSTM GUST
06/21/98 TULSA IN EAST TULSA
0240 AM TULSA OK 95 MPH TSTM GUST
06/21/98 TULSA NEAR US HWY 75 AND APACHE
0242 AM TULSA OK 90 MPH TSTM GUST
06/21/98 TULSA CHANNEL 6 REPORTED 85 TO
90 MPH WINDS DOWNTOWN
0245 AM BROKEN ARROW OK 65 MPH TSTM GUST
ALONG TULSA AND WAGONER
COUNTY LINES NEAR 91ST
STREETLocal storm report, Jun 21, 3:30 AM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
330 AM CDT SUN JUN 21 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0253 AM TULSA INTL ARPT OK 61 MPH TSTM GUST
06/21/98 TULSA MEASURED BY TULSA ASOS
(KTUL)The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:18 AM CDT | Severe Thunderstorm Warning | TSA | Madison | 42 min |
| Jun 21, 12:54 PM CDT | Flash Flood Warning | TSA | Carroll | 2 hr |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1998Every severe thunderstorm warning in 1998
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.