Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 22, NWS Tulsa, OK

March 9, 1997Latimer County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 9, 1997, 11:26 AM CST for Latimer County, Oklahoma. It was in force for 64 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
Mar 9, 1997, 11:26 AM CST (17:26 UTC)
Expired
Mar 9, 1997, 12:30 PM CST
In force
64 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Latimer County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 5.4 hours before the alert went out and 199 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, Norman, OK at 12:00Z on 1997-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 509 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, Norman, OK at 12:00Z on 1997-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 267 square meters per square second.1939587897117Sfc1 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
509 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
498 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
267 m²/s²
0-3 km storm-relative helicity
190 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.

719 
WUUS1 KTUL 091728 RRA
SVRTUL
OKC077-091830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1126 AM CST SUN MAR 9 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST OKLAHOMA
 
   ...LATIMER COUNTY
 
AT 1120 RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTHEAST OF
HARTSHORNE...MOVING INTO LATIMER COUNTY. THE THUNDERSTORM IS MOVING EAST
AT ABOUT 35 MPH AND WILL AFFECT THE AREA AROUND WILBURTON BEFORE 12
NOON.
 
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 50 MPH CAN BE EXPECTED
IN THE WARNED AREA.
 
KEEP TUNED TO THIS STATION FOR THE LATEST NATIONAL WEATHER SERVICE
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 Mar 9, 9:46 AM CST, 1 hour 40 minutes earlier.

Area forecast discussion, Mar 9, 9:46 AM CST, 1 hour 40 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
945 AM CST SUN MAR 9 1997

WINDS RIGHT BEHIND FRONT ARE QUITE STRONG WITH GREATER THAN +6
MB/3HR RISES IN KS. MESONET GUSTS OVER 40MPH BEING REPORTED IN KAY
COUNTY. WILL UPDATE WINDS TO ADVISORY LEVELS... BECOMING N 20-30
OVER COUNTIES NW OF TUL WITH CAUTION ON AREA LAKES ELSEWHERE.

ANOTHER PROBLEM IS THREAT OF SVR OVER ERN ZONES LATER TODAY. DO NOT
AGREE WITH LATEST DY1 OUTLOOK KEEPING SLT RISK TO THE NE OF AREA.
MODELS SHOWING WLY WINDS ABOVE THE SFC OVER MOST OF THE AREA BY 18Z
WHICH SHOULD KEEP STRONG CONVERGENCE LIMITED TO NEAR THE SFC.
HOWEVER...LI ON AREA SOUNDINGS ARE VERY UNSTABLE (LI -5 AT OUN)
WITH LITTLE OR NO CAP. COULD SEE A FEW STORMS THIS MORNING AND INTO
THIS AFTERNOON BECOME SVR WITH LARGE HAIL POSS. AXIS OF MOISTURE
AND INSTABILITY AT 12Z VERY NARROW FROM SPS TO OUN TO SGF. CURRENT
SHRA/TSRA IN ERN ZONES ARE BEHAVING THEMSELVES WHERE INSTABILITY IS
NOT AS HIGH...BUT OTHER SCT SHRA/TSRA AHEAD OF FRONT CONTINUE. WILL
HAVE TO WATCH PROGRESS OF FRONT AND CLOUD COVER CLOSELY THE NEXT 6
HOURS. VIS IMAGERY SHOWING SEVERAL BREAKS IN SRN OK AND NRN TX AND
INSTABILITY COULD GET OUT OF CONTROL IF ENOUGH SUNSHINE BREAKS
THROUGH. WILL NOT MENTION POSS SVR B/C OF TOO MANY UNCERTAINTIES
ATTM. MAIN THREAT APPEARS TO BE LARGE HAIL. REST OF FCST LOOKS
GOOD. /26

.TUL...
OK...WIND ADVISORY TODAY ZONES 54>56/59. CAUTION ON A0REA LAKES
ELSEWHERE THIS AFTERNOON ELSEWHERE.
AR....CAUTION ON AREA LAKES ELSEWHERE THIS AFTERNOON ELSEWHERE.

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive.