Alert archive / Arkansas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 271, NWS Tulsa, OK

June 30, 1994Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 30, 1994, 5:29 PM CDT for Washington County, Arkansas. It was in force for 61 min.

The area

The counties it named.

The facts

Issued: Jun 30, 1994, 5:29 PM CDT (22:29 UTC)
Expired: Jun 30, 1994, 6:30 PM CDT
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Washington County, AR

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 10.5 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-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: 3 J/kg
Mixed-layer CIN: -369 J/kg
Mixed-layer LCL: 2256 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 302231 RRA
SVRFSM
ARC143-OKC079-302330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
529 PM CDT THU JUN 30 1994
 
THE NATIONAL WEATHER SERVICE IN FORT SMITH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ARKANSAS
 
   ...EASTERN WASHINGTON COUNTY
 
 
IN EAST CENTRAL OKLAHOMA
 
   ...SOUTHERN LE FLORE COUNTY
 
AT 526 PM CDT FORT SMITH WEATHER RADAR SHOWED SEVERE THUNDERSTORMS FIVE
MILES SOUTHEAST OF SPRINGDALE ARKANSAS IN NORTHWEST ARKANSAS AND ABOUT
SEVEN MILES NORTHWEST OF PAGE OKLAHOMA IN EASTERN OKLAHOMA. THESE STORMS
WERE MOVING SLOWLY SOUTHEAST AT 10 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 30, 2:54 PM CDT, 2 hours 35 minutes earlier.

Area forecast discussion, Jun 30, 2:54 PM CDT, 2 hours 35 minutes before

AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
245 PM CDT THU JUN 30 1994

W.V. SATL PICS INDCT S/W HAS JUST ABT MOVD OUT OF EOK AND XPCT CONVCTN
TO DVLP MNLY EAST OF EOK THIS EVE.  DPR MOISTR RMNS OVR SERN OK...BUT
WL HV DIFFICULTY DVLPG CONVCTN BHND S/W.  ETA SHOWS ANOTHER S/W MOVG
ACRS NRN KS TNGT WHICH CUD SET OFF ANOTHR PSBL MCS OVRNGT.  HWVR..NGM
SHOWS A MUCH WKR S/W FARTHER NORTH TNGT.  NGM HAS BEEN CONSISTENT WITH
ITS PVS RUN...WHILE ETA HAS BACKED OFF FM ITS DPCTN FM THE PVS RUN.
WL LEAN TWDS NGM AND ONLY KEEP A SLGT CHC FOR LT NGT TSTMS IN NERN OK.

AFTWDS BOTH MDLS INDCT ANOTHR STGR S/W MOVG OVR THE UPR RDG FRI NGT.
AGAIN ETA DPCTS S/W STGR AND FARTHER SOUTH THAN NGM.  WL AGAIN GO WITH
NGMS MORE NRN TRAK AND NOT INTRODC TSTMS LT FRI NGT/ERY SAT MRNG.

TUL 73/97/74/97 2211               BVO 71/98/72/98 2211
MLC 75/97/75/97 2211               IDB 74/95/74/95 3211        ..11..

.TUL...NONE.

In the hours before

Local storm report, Jun 30, 2:16 PM CDT, 3 hours 13 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
216 PM CDT THU JUN 30 1994

REPORT FROM WEDNESDAY NIGHT JUNE 29 1994

TIME         COUNTY       EVENT

1130 PM      CREEK        WIND GUSTS UP TO 60 MPH ONE MILE SOUTH OF
                          IRON POST

Local storm report, Jun 30, 2:17 PM CDT, 3 hours 12 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
216 PM CDT THU JUN 30 1994

REPORT FROM WEDNESDAY NIGHT JUNE 29 1994

TIME         COUNTY       EVENT

1130 PM      CREEK        WIND GUSTS UP TO 60 MPH ONE MILE SOUTH OF
                          IRON POST

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 2:50 PM CDT	Severe Thunderstorm Warning	TSA	Benton	55 min
Jun 30, 3:34 PM CDT	Tornado Warning	TSA	Benton, Washington	56 min
Jun 30, 4:04 PM CDT	Severe Thunderstorm Warning	TSA	Madison	56 min
Jun 30, 4:29 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	61 min
Jun 30, 4:58 PM CDT	Severe Thunderstorm Warning	TSA	Scott	62 min
Jun 30, 6:14 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Logan	61 min
Jun 30, 6:14 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	61 min
Jun 30, 6:51 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin	24 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1994 Every severe thunderstorm warning in 1994

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.