Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 164, NWS Tulsa, OK

June 13, 1997Okfuskee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 13, 1997, 1:58 AM CDT for Okfuskee County, Oklahoma. It was in force for 62 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: Jun 13, 1997, 1:58 AM CDT (06:58 UTC)
Expired: Jun 13, 1997, 3:00 AM CDT
In force: 62 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Okfuskee County, OK

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 13, 1:15 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.0 hours before the alert went out and 101 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: 2646 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1420 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

344 
WUUS1 KTUL 130700 RRA
SVRTUL
OKC107-143-147-130800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
158 AM CDT FRI JUN 13 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...OKFUSKEE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...TULSA COUNTY...WASHINGTON COUNTY
 
AT 156 AM...RADAR INDICATED A LINE OF STRONG TO SEVERE STORMS
EXTENDING FROM 10 MILES WEST OF COPAN TO BARNSDALL TO MANNFORD TO
DEPEW TO 10 MILES WEST OF BOLEY. THESE STORMS WERE MOVING EAST 45
MPH. COPAN...BARTLESVILLE...SKIATOOK...SAND SPRINGS...TULSA...BOLEY
AND OKEMAH ARE IN THE PATH OF THESE STORMS.
 
 
DAMAGING WINDS WITH GUSTS UP TO 70 MPH WILL OCCUR WITH THIS LINE OF
THUNDERSTORMS.  IF YOU ARE IN THE PATH OF THESE STORMS SEEK SHELTER
IMMEDIATELY IN THE LOWEST FLOOR OF YOUR BUILDING OR HOME.  STAY
AWAY FROM OUTSIDE WALLS AND WINDOWS.  IF YOU ARE IN A MOBILE HOME
YOU SHOULD MOVE TO A MORE SUBSTANTIAL STRUCTURE IF ONE IS NEARBY.

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 Jun 12, 9:12 PM CDT, 4 hours 46 minutes earlier.

Area forecast discussion, Jun 12, 9:12 PM CDT, 4 hours 46 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
910 PM CDT THU JUN 12 1997

LATEST SFC ANALYSIS SHOWS A FNT XTNDG FM A SFC LO IN NW MO TO
ANOTHER LO IN THE ERN TX PNHDL WITH A DRYLINE XTNDG SWD FM THERE.
AN ISOLD STRM FORMED ALNG THIS BNDRY IN SCNTRL KS AND SPLIT W/RIGHT
MOVER HEADED ALMST DUE E. MORE NUMEROUS TSRA HV FORMED FURTHER W
FROM THE ERN TX PNHDL NWD INTO WRN KS AS UPR LVL SPEED MAX MVS INTO
SRN PLAINS AS SHOWN BY WATER VAPOR IMAGERY AND PROFILERS. AN ISOLD
SHRA FORMED EARLIER IN NOWATA CNTY ALNG A WK SFC BNDRY BUT THIS
DISSIPATED AS IT MVD NEWD.

CANNOT RULE OUT ADNTL DVLP IN ZNS NR THE KS BRDR BUT LOOKS LIKE
TSRA OUT W SHLD BE MAIN SHOW FOR TNGT AS THEY HEAD ESE TWDS FA.
ONCE AGAIN 15Z MESOETA SEEMS TO BE ON THE RIGHT TRACK
W/ORGANIZATION OF TSRA. THIS SUGGESTS THAT STRMS SHLD MV INTO ERN
OK AFT MIDNGT W/MOST SIG CNVCTN IN SRN SCTNS. APRS THAT STRMS SHLD
BE APRCHG OK/AR BRDR zBY 12Z. PREV FCST LOOKS TO HV A GOOD HANDLE ON
SITN. MAY BUMP POPS UP SOME FOR TNGT. ALSO W/COPIOUS AMNT OF
MOISTURE AVBL MAY OPT TO INCLUDE MENTION OF LCL HVY RAINFALL IN
PARTS OF ERN OK TNGT.

07

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 12:44 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	61 min
Jun 13, 1:36 AM CDT	Severe Thunderstorm Warning	TSA	Creek	54 min
Jun 13, 1:44 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	46 min
Jun 13, 1:58 AM CDT	Severe Thunderstorm Warning	TSA	Tulsa, Washington	62 min
Jun 13, 2:38 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	37 min
Jun 13, 3:21 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	39 min
Jun 13, 6:27 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	48 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.