Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 327, NWS Tulsa, OK

October 8, 1997Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 8, 1997, 11:29 PM CDT for Wagoner County, Oklahoma. It was in force for 61 min. 2 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: Oct 8, 1997, 11:29 PM CDT (04:29 UTC)
Expired: Oct 9, 1997, 12:30 AM CDT
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Wagoner County, OK

The radar

The Tulsa radar (KINX), 24 km from the middle of the area, began a volume at 04:33 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

Time	Report	Where	Remark
Oct 8, 11:50 PM CDT	Thunderstorm Wind	Coweta, OK
Oct 9, 12:30 AM CDT	Thunderstorm Wind	Wagoner, OK	Severe thunderstorms developed in eastern Oklahoma during the evening of October 8th. Strong thunderstorm winds caused roof damage in Wagoner, and several large tree limbs were blown down 10 miles west of Burbank and in Coweta. Thunderstorm winds gusted to 60

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, 4.5 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 390 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 090430
SVRTUL
OKC145-090530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1129 PM CDT WED OCT 8 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST OKLAHOMA
 
   ...WAGONER COUNTY
 
AT 1128 PM...RADAR SHOWED A SEVERE THUNDERSTORM NEAR BIXBY. IT WAS
MOVING EAST AT 25 MPH. THE STORM MAY MOVE INTO THE COWETA AND ONETA
AREAS BY MIDNIGHT.
 
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA.
 
DURING THE STORM MOVE INDOORS AND STAY AWAY FROM WINDOWS.
TO PROTECT YOURSELF FROM LIGHTNING DO NOT USE THE TELEPHONE
OR HAND HELD ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY.
MOTORISTS SHOULD BE ALERT FOR WATER ON ROADWAYS AND NEVER
DRIVE ONTO A FLOODED ROAD.
 
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 Oct 8, 9:42 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Oct 8, 9:42 PM CDT, 1 hour 47 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
940 PM CDT WED OCT 8 1997

SO FAR JUST A GLANCING BLOW OF STRONG TSTMS ACRS THE NWRN FCST AREA.
STRONGER STORMS JUST NOW WORKING THEIR WAY INTO NWRN COUNTIES.  JUST
ENOUGH UPR DYNAMICS STILL IN PLACE TO SUGGEST THAT MORE WL COME IN FM
THE WSW LATER THIS EVENING.  A LOOK AT THE 00Z RAOB DATA SHOWS
DIFFLUENT UPR FLOW ACRS REGION THIS EVENING WITH MDT LLVL INFLOW OF
MSTR.  MAIN UPR ENERGY WL LIFT OUT TO THE NE LATE TONIGHT AS BEST
WINDS ALFT NOW IN ERN QUAD OF UPR LONGWAVE TROF.  WITH THIS IN
MIND... EXPECT SCT STRONG TSTMS ACRS WRN FCST AREA THRU MIDNIGHT...
WITH ACTIVITY WINDING DOWN STRENGTHWISE BY EARLY MORNING AS MAIN
ENERGY LIFTS OUT.  AS FAR AS SPECIFIC POPS GO...WONT ADJUST ANY POPS
DOWNWARD ATTM.  WITH UPR SWLY FLOW ALFT JUST ABT ANYTHING COULD GEN
UP IN LLVL MSTR TO THE SW. SFC BNDRY WL MAKE SLOW PROGRESS (IF AT
ALL) INTO WRN FCST AREA BY DAYBREAK BEFORE STALLING OUT.

PICTURE STILL A LITTLE MUDDLED AS TO WHAT WL HAPPEN BEYOND PD 1 AND
WOULD LIKE TO LOOK AT LATER MODEL DATA BEFORE SUGESTING ANY CHANGES
THERE (MAINLY IN REGARDS TO POSN OF LLVL BNDRY).  WL HOLD OFF ON
UPDATING ZONES ATTM...ALTHO WE ARE LOOKING INTO POSSIBLY UPDATING
POPS ACRS NWRN ZONE GROUPINGS TO EXTEND MENTION OF POPS OVERNIGHT.

FCSTID = 14

.TUL...
OK...NONE.
AR...NONE.

In the hours before

Local storm report, Oct 8, 10:24 PM CDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1024 PM CDT WED OCT 08 1997

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

0934 PM    5 NW DEPEW                OK   .88 INCH HAIL
10/08/97   CREEK

0936 PM    5 NW DEPEW                OK   60 MPH TSTM GUST
10/08/97   CREEK

1020 PM    3 S DEPEW                 OK   .88 INCH HAIL
10/08/97   CREEK

Local storm report, Oct 8, 10:25 PM CDT, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1024 PM CDT WED OCT 08 1997

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

0934 PM    5 NW DEPEW                OK   .88 INCH HAIL
10/08/97   CREEK

0936 PM    5 NW DEPEW                OK   60 MPH TSTM GUST
10/08/97   CREEK

1020 PM    3 S DEPEW                 OK   .88 INCH HAIL
10/08/97   CREEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 8, 7:46 PM CDT	Tornado Warning	TSA	Osage	44 min
Oct 8, 8:26 PM CDT	Tornado Warning	TSA	Osage	49 min
Oct 8, 8:31 PM CDT	Severe Thunderstorm Warning	TSA	Creek	59 min
Oct 8, 9:34 PM CDT	Severe Thunderstorm Warning	TSA	Creek	41 min
Oct 8, 10:08 PM CDT	Severe Thunderstorm Warning	TSA	Creek	52 min
Oct 8, 10:44 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	61 min
Oct 8, 11:49 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	56 min
Oct 9, 1:29 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee	46 min
Oct 9, 2:17 AM CDT	Flash Flood Warning	TSA	Muskogee	3 hr
Oct 9, 2:30 AM CDT	Severe Thunderstorm Warning	TSA	Adair	45 min
Oct 9, 2:43 AM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	32 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1997 Every 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; radar from the NEXRAD Level II archive.