Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 50, NWS Tulsa, OK

March 25, 1997McIntosh County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 25, 1997, 2:14 AM CST for McIntosh County, Oklahoma. It was in force for 61 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 25, 1997, 2:14 AM CST (08:14 UTC)
Expired
Mar 25, 1997, 3:15 AM CST
In force
61 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County McIntosh County, OK

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 25, 12:15 AM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 8.2 hours before the alert went out and 158 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 00:00Z on 1997-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1141 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 00:00Z on 1997-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 square meters per square second.1939587897Sfc1 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
1141 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
1360 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

883 
WUUS1 KTUL 250815 RRA
SVRTUL
OKC091-250915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
214 AM CST TUE MAR 25 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OKLAHOMA
 
   ...MCINTOSH COUNTY
 
AT 210 AM...RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS OVER
OKMULGEE COUNTY...MOVING EAST AT ABOUT 30 MPH. DIME SIZED HAIL HAS BEEN
REPORTED IN THE HENRYETTA AREA FROM 155 AM TIL 210 AM WITH THESE
THUNDERSTORMS. HITCHITA IS IN THE PATH OF THESE THUNDERSTORMS.
 
HAIL TO THE SIZE OF DIMES 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 Mar 24, 9:44 PM CST, 4 hours 30 minutes earlier.

Area forecast discussion, Mar 24, 9:44 PM CST, 4 hours 30 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TULSA OK
940 PM CST MON MAR 24 1997

STG/SVR TSTMS STRETCHING ALNG FNT ACRS ERN KS INTO N-CNTL AND
NW OK THIS EVNG.  FNT CONTG TO SAG SLOWLY TO THE SE AND WL BE
ENTERING NWRN PART OF FA IN THE NXT HR OR SO.  TIMING OF FNT
IN PREV PKG STILL LOOKS GOOD...AND SHLD BE THRU MOST OF FA BY
ARND 12Z.  GUSTY SOUTH WINDS HAVE DIMINISHED A LTL THRU THE
EVNG...ESPECIALLY OVR ERN AND SRN PARTS OF FA.  WL UPDATE ZNS
AND DROP WIND ADVSY FOR NOW...BUT WL HAVE TO WATCH FOR GUSTY
NRLY WNDS BEHIND FNT AND MAY HAVE TO REISSUE FOR NWRN PART OF
FA LATER.  OTHERWISE DO NOT PLAN ON ANY OTHER BIG CHGS FOR
NOW.  WL LIKELY UPDATE ZNS AGN ARND MIDNIGHT AS FNT/SQUALL LN
BEGINS TO PROGRESS ACRS THE AREA.

DECIDED TO KEEP WIND ADVISORY IN EFFECT FOR MUCH OF NE OK
TNGT AS MESONET SHOWING STG NRLY WNDS MOVG IN BHND FNT.
...04...
.TUL...
OK...WND ADVSY FOR TNGT ZNS 54>67.
A.R...NONE.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 24, 10:06 PM CSTSevere Thunderstorm WarningTSAOsage, Pawnee54 min
Mar 24, 10:41 PM CSTTornado WarningTSAOsage49 min
Mar 24, 10:50 PM CSTSevere Thunderstorm WarningTSAPawnee40 min
Mar 24, 11:05 PM CSTSevere Thunderstorm WarningTSAWashington40 min
Mar 24, 11:18 PM CSTSevere Thunderstorm WarningTSATulsa42 min
Mar 24, 11:24 PM CSTSevere Thunderstorm WarningTSANowata, Rogers66 min
Mar 24, 11:40 PM CSTSevere Thunderstorm WarningTSACraig, Mayes50 min
Mar 24, 11:49 PM CSTSevere Thunderstorm WarningTSACreek, Osage, Pawnee41 min
Mar 24, 11:58 PM CSTSevere Thunderstorm WarningTSATulsa47 min
Mar 25, 12:02 AM CSTSevere Thunderstorm WarningTSAOkfuskee58 min
Mar 25, 12:05 AM CSTSevere Thunderstorm WarningTSADelaware, Ottawa55 min
Mar 25, 12:25 AM CSTSevere Thunderstorm WarningTSAMayes35 min
Mar 25, 12:28 AM CSTSevere Thunderstorm WarningTSACreek32 min
Mar 25, 12:39 AM CSTSevere Thunderstorm WarningTSAOkmulgee, Tulsa36 min
Mar 25, 12:45 AM CSTSevere Thunderstorm WarningTSAMuskogee, Wagoner60 min
Mar 25, 12:50 AM CSTSevere Thunderstorm WarningTSADelaware, Mayes40 min
Mar 25, 1:19 AM CSTSevere Thunderstorm WarningTSACreek, Okfuskee56 min
Mar 25, 1:52 AM CSTSevere Thunderstorm WarningTSAOkmulgee68 min

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.