Alert archive / Oklahoma / Tornado Warnings in 1997

Tornado Warning 2, NWS Tulsa, OK

March 27, 1997Creek County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Mar 27, 1997, 6:51 PM CST for Creek County, Oklahoma. It was in force for 54 min. 4 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
Mar 27, 1997, 6:51 PM CST (00:51 UTC)
Expired
Mar 27, 1997, 7:45 PM CST
In force
54 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Creek County, OK

The radar

The Tulsa radar (KINX), 79 km from the middle of the area, began a volume at 00:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 27, 7:04 PM CSTThunderstorm Wind 52Bristow, OK
Mar 27, 7:22 PM CSTHail 0.88Kellyville, OK
Mar 27, 7:23 PM CSTHail 1.75Kellyville, OK
Mar 27, 7:44 PM CSTHail 1Sapulpa, OK

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

Norman, OK (KOUN), launched 00:00Z, 0.9 hours before the alert went out and 120 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 1997-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 368 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1997-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 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
368 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1538 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
505 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 280053 RRA
TORTUL
OKC037-280145-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
651 PM CST THU MAR 27 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  745 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST OKLAHOMA
 
   ...CREEK COUNTY
 
AT 650 PM...RADAR INDICATED A POSSIBLE TORNADO 6 MILES SOUTHWEST OF
DEPEW. THIS STORM WAS MOVING NORTHEAST AT 40 MPH...AND WILL BE NEAR
DEPEW BY 7 PM...AND NEAR BRISTOW BY 710 PM. PEOPLE IN DEPEW AND BRISTOW
ARE ADVISED TO TAKE COVER NOW!
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE IN THE
PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE.
OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.
STAY AWAY FROM OUTSIDE WALLS AND AVOID WINDOWS.  ABANDON CARS AND
MOBILE HOMES FOR A REINFORCED BUILDING OR GET IN A GROUND DEPRESSION.
 
KEEP TUNED TO THIS STATION FOR THE LATEdST WEATHER BULLETINS.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 6:16 PM CSTSevere Thunderstorm WarningTSACreek59 min
Mar 27, 7:10 PM CSTSevere Thunderstorm WarningTSATulsa50 min
Mar 27, 7:46 PM CSTSevere Thunderstorm WarningTSARogers, Wagoner44 min
Mar 27, 7:55 PM CSTTornado WarningTSATulsa35 min
Mar 27, 8:26 PM CSTSevere Thunderstorm WarningTSAMayes49 min
Mar 27, 8:29 PM CSTSevere Thunderstorm WarningTSARogers16 min
Mar 27, 9:03 PM CSTSevere Thunderstorm WarningTSADelaware, Mayes42 min
Mar 27, 9:40 PM CSTSevere Thunderstorm WarningTSADelaware35 min

Nearby

Tornado Warnings in Oklahoma, 1997Every tornado warning in 1997Tornadoes 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; radar from the NEXRAD Level II archive.