Alert archive / Arkansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 248, NWS Tulsa, OK

July 14, 1997Benton County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 14, 1997, 7:30 PM CDT for Benton County, Arkansas. It was in force for 30 min. 1 report 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 14, 1997, 7:30 PM CDT (00:30 UTC)
Expired
Jul 14, 1997, 8:00 PM CDT
In force
30 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Benton County, AR

What was reported inside it

TimeReportWhereRemark
Jul 14, 7:40 PM CDTHail 0.75Cave Spgs, ARIsolated severe thunderstorms developed in Benton County of extreme northwest Arkansas during the late afternoon and early evening of July 14th and produced quarter size hail at Monte Ne and dime size hail at Cave Springs.

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 00:00Z, 0.5 hours before the alert went out and 74 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 00:00Z on 1997-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3730 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1997-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 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
3730 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1063 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
19 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 KTUL 150031 RRA
SVRTUL
ARC007-150100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
730 PM CDT MON JUL 14 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST ARKANSAS
 
   ...SOUTHERN BENTON COUNTY
 
AT 730 PM RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF
BENTONVILLE. THIS STORM WAS MOVING SOUTHEAST AT 10 MILES AN HOUR. CAVE
SPRINGS IS IN THE PATH OF THIS STORM.
 
HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

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 14, 3:43 PM CDT, 3 hours 47 minutes earlier.

Area forecast discussion, Jul 14, 3:43 PM CDT, 3 hours 47 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
340 PM CDT MON JUL 14 1997

MESONET SHOWING WK SFC TROF ALONG I-44 WITH DWPTS
POOLING INTO THE UPPER 70S TO NEAR 80 ALONG BNDRY.
THERE ARE SOME DECENT NNE WINDS N OF THE BNDRY IN AREAS N AND W OF
TULSA. VIS SAT PICS SHOW CU FIELD INCREASING SOME IN THIS AREA AND
ALSO N INTO SC/SE KS. APPEARS TO BE SOME SPIN IN DEBRIS CLOUDS IN
KS...LEFT FROM THIS MORN'S CONVECTION IN SW KS...AND THIS FEATURE
SHOULD DRIFT SE INTO NE OK/NW ARK THIS EVE. SO EVEN THO RADAR IS
CURRENTLY QUIET...WITH THE AMT OF INSTABLILTY AVAILABLE WILL KEEP
AT LEAST SLGT CHC POPS  FOR TSRA THIS EVE ACRS FA.

AT FIRST LOOK...REST OF FCST LOOKS HOT AND DRY WITH UPPER RDG JUST
W OF FA. BUT FA WILL REMAIN IN A PATTERN THAT CAN BRING A SURPRISE
LATE NIGHT/EARLY MORNING ROUND OF PCP. H7 TMPS FCST TO REMAIN
BETWEEN 8-10 DEG C WITH DIFLUENT H85-H3 THICKNESS HEADED INTO FA IN
NW FLO. H85 SSW WINDS AT 20-30 KNTS FCST INTO W/C KS TONIGHT IN H85
MOIST AXIS SHUD MOVE E INTO E KS/C OK TUE NIGHT. WON'T INCLUDE ANY
POPS OVR 20% IN LATER PERIODS IN THIS PACKAGE...BUT LATER SHIFTS
MAY HAVE TO PONDER THIS FURTHER.

SOME DRIER LLVL AIR WILL TRY TO PUSH INTO NRN ZNS TONIGHT AND MAY
BRING SOME HUMIDIY RELIEF ON TUE. WILL BE ANOTHER HOT DAY IN SRN
ZNS HOWEVER...WHERE HUMIDITY WILL LIKELY REMIAN. HOT TMPS WILL CONT
INTO WED...WITH ONLY PSBL RELIEF COMING FROM ANY DEBRIS CLDS FROM
EARLY MORNING CONVECTION.

EXTENDED LOOKS HOT WITH LTL CHC FOR PCP AS UPPER RDG REMAINS IN
CONTROL OVR THE CENTRAL U.S.
/13
TUL  073/095 076/096 077 2112
FSM  072/096 071/096 071 2111
MLC  072/097 071/097 073 2111
BVO  070/096 072/097 074 21-3
FYV  067l/092 066/092 069 21-2
IDB  069/097 068/097 069 2111
BYV  065/091 066/091 068 2--2
.TUL...
OK...NONE.
AR...NONE.

In the hours before

Local storm report, Jul 14, 7:12 PM CDT, 18 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
712 PM CDT MON JUL 14 1997

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

640 PM     MONTE NE SHORES          AR    1.00 IN H
Local storm report, Jul 14, 7:13 PM CDT, 17 minutes before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TULSA, OK
713 PM CDT MON JUL 14 1997

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

0640 PM    MONTE NE SHORES           AR   1.00 INCH HAIL
07/14/97   BENTON
Local storm report, Jul 14, 7:14 PM CDT, 16 minutes before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TULSA, OK
713 PM CDT MON JUL 14 1997

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

0640 PM    MONTED NE SHORES           AR   1.00 INCH HAIL
07/14/97   BENTON

Nearby

Severe Thunderstorm Warnings in Arkansas, 1997Every severe thunderstorm warning in 1997

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.