Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 330, NWS Tulsa, OK

October 9, 1997Adair County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 9, 1997, 2:30 AM CDT for Adair County, Oklahoma. It was in force for 45 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: Oct 9, 1997, 2:30 AM CDT (07:30 UTC)
Expired: Oct 9, 1997, 3:15 AM CDT
In force: 45 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Adair County, OK

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.5 hours before the alert went out and 137 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 090731 RRA
SVRTUL
OKC001-090815-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
230 AM CDT THU OCT 9 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OKLAHOMA
 
   ...ADAIR COUNTY
 
AT 230 AM...RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS FROM JUST WEST
OF PROCTOR TO JUST WEST OF BUNCH. THE STORMS WERE MOVING EAST AT 40 MPH.
STILWELL...LYONS...WESTVILLE...BUNCH AND PROCTOR ARE IN THE PATH OF
THESE STORMS.
 
 
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, 11:35 PM CDT, 2 hours 55 minutes earlier.

Area forecast discussion, Oct 8, 11:35 PM CDT, 2 hours 55 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TULSA OK
1135 PM CDT WED OCT 8 1997

UPDATED ZONES/RDF TO BRING UP POPS FOR AREAS GENLY ALG I44 (TULSA
AREA WWD)...AND TOOK OUT MENTION OF SVR FOR ONE NWRN ZONE GROUP.
STRONG ACTIVITY N OF I44 WL HAVE A HARD TIME MAKING IT AS STRONG
CONVECTION TO THE S WL CUT DEEP STORM INFLOW.  SATELLITE CONTS TO
SHOW COOLING TOPS ACRS CNTRL/SWRN OK.  FOCUS NOW SHIFTING
TO AREAS ALG AND S OF I44.  WL STILL HOLD OFF ON MENTIONING SVR ACRS
WRN AR AS LLVL AMS WL ERODE STG ACTIVITY AS IT PUSHES IN FROM W.
WITH RICH LLVL AMS AND CONT STREAM OF UPR ENERGY IN SWLY FLOW...THINK
CHC POPS STILL WARRANTED FOR AREAS TO S AND E.

UPDATED ZONES/RDF ALREADY OUT.

FCSTID = 14

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

In the hours before

Local storm report, Oct 8, 10:24 PM CDT, 4 hours 6 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, 4 hours 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

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, 11:29 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	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, 2:43 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; the sounding from the Mesonet's radiosonde archive.