Alert archive / Arkansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 192, NWS Tulsa, OK

June 21, 1990Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 21, 1990, 6:45 PM CDT for Washington County, Arkansas. It was in force for 60 min. 2 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
Jun 21, 1990, 6:45 PM CDT (23:45 UTC)
Expired
Jun 21, 1990, 7:45 PM CDT
In force
60 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Washington County, AR

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 21, 6:50 PM CDTThunderstorm Wind 0Washington, AR
Jun 21, 7:20 PM CDTThunderstorm Wind 0Washington, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 11.8 hours before the alert went out and 109 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 1990-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2230 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
41 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 
TTAA00 KFSM 212346
SVRFSM
ARC143-220045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
645 PM CDT THU JUN 21 1990
 
THE NATIONAL WEATHER SERVICE IN FORT SMITH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ARKANSAS
 
   ...WASHINGTON COUNTY
 
AT 645 PM CDT THE FORT SMITH RADAR INDICATED A SEVERE THUNDERSTORM
MOVING INTO WESTERN WASHINGTON COUNTY. THE SEVERE THUNDERSTORM WAS
MOVING TO THE EAST AT 20 MPH.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  RE!MAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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.

In the hours before

Special weather statement, Jun 21, 2:29 PM CDT, 4 hours 16 minutes before
OKC105-113-117-143-147-212030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
229 PM CDT THU JUN 21 1990

...THUNDERSTORMS DEVELOPING RAPIDLY IN NORTHERN OKLAHOMA...

AT 220 PM RADAR INDICATED SCATTERED THUNDERSTORMS...SOME WITH VERY
HEAVY RAIN...DEVELOPING RAPIDLY IN NORTH-CENTRAL AND NORTHEAST
OKLAHOMA.  THE STRONGEST STORMS WERE LOCATED JUST NORTHEAST OF PONCA
CITY IN KAY COUNTY...JUST NORTHEAST OF BARNSDALL IN OSAGE COUNTY...AND
ABOUT 15 MILES NORTH OF NOWATA IN NOWATA COUNTY.  MOVEMENT WAS TOWARD
THE EAST NORTHEAST AT ABOUT 20 MILES AN HOUR.

THUNDERSTORMS SHOULD CONTINUE TO DEVELOP THIS AFTERNOON ACROSS
NORTHEASTERN OKLAHOMA.  PEOPLE IN THE PATHS OF THESE STORMS CAN 1EXPECT
BRIEF HEAVY RAINFALL...STRONG WINDS...AND POSSIBLY SMALL HAIL.
RESIDENTS OF NORTHEASTERN OKLAHOMA SHOULD KEEP ALERT FOR THE
POSSIBLILITY OF SEVERE WEATHER DEVELOPMENT THE REST OF THIS
AFTERNOON AND TONIGHT.
Local storm report, Jun 21, 3:24 PM CDT, 3 hours 21 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
325 PM CDT THU JUN 21 1990

TIME/CDT     COUNTY      EVENT

303 PM       OSAGE       LARGER THAN GOLFBALL SIZE HAIL JUST SOUTHWEST
                         OF BARTLESVILLE.  REPORTED BY BARTLESVILLE EOC.
Local storm report, Jun 21, 5:43 PM CDT, 1 hour 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
530 PM CDT THU JUN 21 1990

TIME/CDT     COUNTY      EVENT

344 PM       NOWATA      TORNADO TOUCHED DOWN 10 MILES NORTHWEST OF
                         NOWATA.
410 PM       OSAGE       DIME SIZE HAIL AT FAIRFAX.
428 PM       CRAIG       TORNADO SOUTHEAST OF CENTRALIA.
450 PM       CRAIG       DIME SIZE HAIL AT WHITE OAK.
503 PM       CRAIG       60 MILE AN HOUR AT WELCH.
420 PM       CRAIG       LOAD BLOWN OFF SEMI-TRUCK 3 MILES EAST OF
                         VINITA.
537          MAYES       GOLFBALL SIZE HAIL AT LANGLEY.
Local storm report, Jun 21, 5:44 PM CDT, 1 hour 1 minute before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TULSA, OK
545 PM CDT THU JUN 21 1990

TIME/CDT     COUNTY      EVENT

344 PM       NOWATA      TORNADO TOUCHED DOWN 10 MILES NORTHWEST OF
                         NOWATA.
410 PM       OSAGE       DIME SIZE HAIL AT FAIRFAX.
428 PM       CRAIG       TORNADO SOUTHEAST OF CENTRALIA.
450 PM       CRAIG       DIME SIZE HAIL AT WHITE OAK.
503 PM       CRAIG       60 MILE AN HOUR AT WELCH.
420 PM       CRAIG       LOAD BLOWN OFF SEMI-TRUCK 3 MILES EAST OF
                         VINITA.
537          MAYES       GOLFBALL SIZE HAIL AT LANGLEY.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 9:31 AM CDTFlash Flood WarningTSABenton59 min
Jun 21, 9:31 AM CDTFlash Flood WarningTSAJohnson59 min
Jun 21, 6:26 PM CDTSevere Thunderstorm WarningTSABenton64 min
Jun 21, 6:42 PM CDTTornado WarningTSABenton33 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1990Every severe thunderstorm warning in 1990

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.