Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 377, NWS Tulsa, OK

September 26, 1996Nowata County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 26, 1996, 12:20 AM CDT for Nowata County, Oklahoma. It was in force for 55 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
Sep 26, 1996, 12:20 AM CDT (05:20 UTC)
Expired
Sep 26, 1996, 1:15 AM CDT
In force
55 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Nowata County, OK

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.3 hours before the alert went out and 162 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, Springfield, MO at 00:00Z on 1996-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Springfield, MO at 00:00Z on 1996-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.19395878Sfc1 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
13 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 260521
SVRTUL
OKC105-260615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1220 AM CDT THU SEP 26 1996
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST OKLAHOMA
 
   ...NOWATA COUNTY
 
AT 1220 AM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING
FROM 5 MILES NORTHWEST OF WANN TO BARTLESVILLE...MOVING EAST SOUTHEAST
AT ABOUT 25 MPH. WANN AND LENEPAH ARE IN THE PATH OF THIS LINE OF
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.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS.

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 Sep 25, 9:14 PM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Sep 25, 9:14 PM CDT, 3 hours 6 minutes before
EASTERN OKLAHOMA/NORHTWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
910 PM CDT WED SEP 25 1996

WET FCST LOOKS GOOD.  A WK WRMFNT FROM SWRN AR ACRS OSAGE CO AND
INTO KS IS APRNTLY FOCUS FOR DVLPMT OF OVRRNG PCPN FOR MUCH OF NERN
OK AND NWRN AR.  THIS ACTVTY BEGAN ARND 8 PM AND CONTS TO DVLP AND
DRIFT ENEWD.  XPC THAT TO CONT AND WILL KEEP HIGH POPS THAT AREA.
OTHER TSTMS DVLPD OVER SWRN KS AND NWRN OK ARE XPCD TO DRIFT ESEWD
DURG THE NIGHT.  H8 FLOW WILL CONT TO FEED MDT MSTR INTO THE
STORMS...ALTO OUN RAOB WAS NOT ESP UNSTABLE.  SVR WRNGS OUT ATTM
FOR SRN KS AND N/CNTRL OK...AND WILL KEEP WORDING FOR PSBL SVR THRU
THE NIGHT.  NO OTHER CHANGES.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 11:20 PM CDTSevere Thunderstorm WarningTSAOsage55 min
Sep 26, 12:04 AM CDTSevere Thunderstorm WarningTSAWashington41 min
Sep 26, 12:14 AM CDTSevere Thunderstorm WarningTSAOsage46 min
Sep 26, 12:45 AM CDTSevere Thunderstorm WarningTSACraig60 min
Sep 26, 1:34 AM CDTSevere Thunderstorm WarningTSAOttawa41 min
Sep 26, 1:36 AM CDTSevere Thunderstorm WarningTSAPawnee39 min
Sep 26, 2:10 AM CDTSevere Thunderstorm WarningTSAPawnee50 min
Sep 26, 4:27 AM CDTFlash Flood WarningTSAOsage, Rogers, Tulsa3 hr
Sep 26, 4:27 AM CDTFlash Flood WarningTSADelaware, Mayes3 hr
Sep 26, 6:26 AM CDTFlash Flood WarningTSAAdair3 hr
Sep 26, 6:26 AM CDTFlash Flood WarningTSACherokee, Wagoner3 hr
Sep 26, 6:26 AM CDTFlash Flood WarningTSATulsa3 hr
Sep 26, 8:46 AM CDTFlash Flood WarningTSAAdair3 hr
Sep 26, 8:46 AM CDTFlash Flood WarningTSACherokee, Muskogee3 hr
Sep 26, 9:15 AM CDTFlash Flood WarningTSAMcIntosh, Okmulgee3 hr
Sep 26, 9:32 AM CDTFlash Flood WarningTSAAdair3 hr
Sep 26, 9:32 AM CDTFlash Flood WarningTSACherokee3 hr
Sep 26, 10:48 AM CDTFlash Flood WarningTSAHaskell, Latimer, Pittsburg, Sequoyah3 hr
Sep 26, 11:29 AM CDTFlash Flood WarningTSAAdair3 hr
Sep 26, 12:22 PM CDTFlash Flood WarningTSALeFlore3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1996Every severe thunderstorm warning in 1996

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.