Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 404, NWS Tulsa, OK

September 6, 1995Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 6, 1995, 11:34 PM CDT for Osage County, Oklahoma. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Sep 6, 1995, 11:34 PM CDT (04:34 UTC)
Expired
Sep 7, 1995, 12:15 AM CDT
In force
41 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 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.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.6 hours before the alert went out and 181 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 1995-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2000 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, Norman, OK at 00:00Z on 1995-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939Sfc1 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
2000 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1940 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
305 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 070435 RRA
SVRTUL
OKC113-070515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1134 PM CDT WED SEP 6 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST OKLAHOMA
 
   ...NORTHERN OSAGE COUNTY
 
AT 1135 PM...RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHEAST OF
FORAKER MOVING EAST SOUTHEAST AT 15 MPH. BIGHEART IS IN THE PATH OF THIS
STORM.
 
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA.

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 6, 9:12 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Sep 6, 9:12 PM CDT, 2 hours 22 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
909 PM CDT WED SEP 6 1995

SFC ANAL HAS TWO MAIN BNDRYS AT 01Z WHICH WILL AFFECT ERN OK WX
TONITE/THURS. A SFC TROF/WK FRONT SNAKED FROM IA INTO CNTRL KS
AND NW OK. THIS TROF WAS MOVG SLOWLY SE. THE LONG-AWAITED CANADIAN
COLD FRONT WAS  MOVG THRU CNTRL NEBRASKA. XPCT FRONT TO CATCH UP
TO THE TROF IN KS TONITE AND MOVE INTO NE OK THURS MORN. AFTN
PKG HAS GUD HANDLE ON FRONTAL TIMING AND WSHFT.

BIG QUESTION IS WHETHER OR NOT WIDESPRD PCPN WILL ACCOMPANY THIS
SYSM. STG CAP EVIDENT ON OUN SNDG THIS EVE HAS PROHIBITED DVLPMENT
OVR NW OK SO FAR DESPITE PERSISTENT AND STRONG MSTR FLUX CONVERGENCE.
EVE UA DATA SUGGESTS THE CAP WILL NOT BE BROKEN BEFORE COOLER H7
TEMPS ARRIVE SOMETIME TOWARD 12Z THURS. SGF SNDG HAD MUCH WEAKER
CAP BUT LESS LO LVL MSTR. SO PROSPECTS FOR TRW WITH UPDRAFTS ROOTED
IN BLYR LOOK LOW UNTIL LATE TONITE OR EARLY THURS MORN.

DESPITE THE ABOVE NEGATIVE FACTORS FOR PRECIP...HAVE OPTED TO NOT
MAKE ANY BIG CHGS TO 1ST PD POPS. 700 MB UPR AIR MAP AND PROFILER
WINDS INDICATE A MID LVL TROF OVR CNTRL KS AND THE TX PANHANDLE
ASSD WITH THE SFC TROF. PLENTY OF MID LVL CLDINESS HAS DVLPD THIS
EVE ALONG AND AHEAD OF THE TROF OVR ERN KS AND OK. AS THE FRONTAL
SYSM MOVES INTO KS TONITE...EXPCT SCTD ELEVATED CONVECTION TO
DVLP IN THE BAROCLINIC ZN AND SPRD SEWD. SCTD SHOWERS AND TRW
SHUD BECOME MORE NMRS IN NE OK TOWARD MORNING AS FRONTAL SYSM AND
COOLER AIR ALF MOVE SEWD. PSBL BEGINNINGS TO THE MID LVL CONVECTION
HAVE SHOWN UP ON 88D BETWEEN ICT AND CNU AT 0207Z.

NO CHGS TO LATER PDS OF FCST.

                                                /9
.TUL...NONE.

In the hours before

Special weather statement, Sep 6, 11:15 PM CDT, 19 minutes before
ARZ001-002-010-011-019-029-OKZ054>071-070600-

SPECIAL WEATHER STATEMENT...CORRECTED DATE...
NATIONAL WEATHER SERVICE TULSA OK
1115 PM CDT WED SEP 6 1995

...COOLER WEATHER AND A CHANCE OF RAIN COMING...

SCATTERED SHOWERS AND THUNDERSTORMS WERE DEVELOPING IN SOUTHEAST
KANSAS AND PARTS OF NORTHEAST OKLAHOMA TONIGHT.  AT 1115 PM...THE
SHOWERS AND STORMS WERE CONFINED TO THE EXTREME NORTHERN PARTS OF
OSAGE AND WASHINGTON COUNTIES. AREAS NORTH OF BARTLESVILLE AND
PAWHUSKA WERE RECEIVING RAIN.

SOME OF THE THUNDERSTORMS MAY PRODUCE BRIEF GUSTY WINDS...AS WELL AS
FREQUENT LIGHTNING AND HEAVY RAIN. THE SHOWERS AND THUNDERSTORMS IN
EXTREME NORTHERN OKLAHOMA WERE MOVING TO THE SOUTHEAST AT 15 MPH.

THE SHOWER AND THUNDERSTORM ACTIVITY WAS DEVELOPING AHEAD OF A STRONG
FRONTAL SYSTEM. AT 11 PM...THE COLD FRONT WAS MOVING INTO EXTREME
NORTHERN KANSAS. TEMPERATURES BEHIND THE FRONT WERE FALLING INTO THE
50S AND 60S.

SCATTERED SHOWERS AND THUNDERSTORMS WILL GRADUALLY SPREAD SOUTHWARD
ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. SCATTERED
SHOWERS WILL MOVE INTO THE TULSA AREA AROUND 300 AM...AND INTO THE
FAYETTEVILLE ARKANSAS AREA AFTER 500 AM.

THE COLD FRONT WILL BRING NORTH WINDS AND COOLER AIR TO EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS ON THURSDAY. THE FRONT WILL MOVE INTO
NORTHEAST OKLAHOMA THURSDAY MORNING...AND THROUGH MOST OF SOUTHEAST
OKLAHOMA AND NORTHWEST ARKANSAS THURSDAY AFTERNOON.

IF IT RAINS IN TULSA TONIGHT OR THURSDAY...IT WILL BE THE FIRST DAY
SINCE AUGUST 6 THAT MEASURABLE RAIN HAS FALLEN.
Special weather statement, Sep 6, 11:17 PM CDT, 17 minutes before
ARZ001-002-010-011-019-029-OKZ054>071-070600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1115 PM CDT WED SEP 6 1993

...COOLER WEATHER AND A CHANCE OF RAIN COMING...

SCATTERED SHOWERS AND THUNDERSTORMS WERE DEVELOPING IN SOUTHEAST
KANSAS AND PARTS OF NORTHEAST OKLAHOMA TONIGHT.  AT 1115 PM...THE
SHOWERS AND STORMS WERE CONFINED TO THE EXTREME NORTHERN PARTS OF
OSAGE AND WASHINGTON COUNTIES. AREAS NORTH OF BARTLESVILLE AND
PAWHUSKA WERE RECEIVING RAIN.

SOME OF THE THUNDERSTORMS MAY PRODUCE BRIEF GUSTY WINDS...AS WELL AS
FREQUENT LIGHTNING AND HEAVY RAIN. THE SHOWERS AND THUNDERSTORMS IN
EXTREME NORTHERN OKLAHOMA WERE MOVING TO THE SOUTHEAST AT 15 MPH.

THE SHOWER AND THUNDERSTORM ACTIVITY WAS DEVELOPING AHEAD OF A STRONG
FRONTAL SYSTEM. AT 11 PM...THE COLD FRONT WAS MOVING INTO EXTREME
NORTHERN KANSAS. TEMPERATURES BEHIND THE FRONT WERE FALLING INTO THE
50S AND 60S.

SCATTERED SHOWERS AND THUNDERSTORMS WILL GRADUALLY SPREAD SOUTHWARD
ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. SCATTERED
SHOWERS WILL MOVE INTO THE TULSA AREA AROUND 300 AM...AND INTO THE
FAYETTEVILLE ARKANSAS AREA AFTER 500 AM.

THE COLD FRONT WILL BRING NORTH WINDS AND COOLER AIR TO EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS ON THURSDAY. THE FRONT WILL MOVE INTO
NORTHEAST OKLAHOMA THURSDAY MORNING...AND THROUGH MOST OF SOUTHEAST
OKLAHOMA AND NORTHWEST ARKANSAS THURSDAY AFTERNOON.

IF IT RAINS IN TULSA TONIGHT OR TrHURSDAY...IT WILL BE THE FIRST DAY
SINCE AUGUST 6 THAT MEASURABLE RAIN HAS FALLEN.
Special weather statement, Sep 6, 11:19 PM CDT, 15 minutes before
ARZ001-002-010-011-019-029-OKZ054>071-070600-

SPECIAL WEATHER STATEMENT...CORRECTED DATE...
NATIONAL WEATHER SERVICE TULSA OK
1115 PM CDT WED SEP 6 1995

...COOLER WEATHER AND A CHANCE OF RAIN COMING...

SCATTERED SHOWERS AND THUNDERSTORMS WERE DEVELOPING IN SOUTHEAST
KANSAS AND PARTS OF NORTHEAST OKLAHOMA TONIGHT.  AT 1115 PM...THE
SHOWERS AND STORMS WERE CONFINED TO THE EXTREME NORTHERN PARTS OF
OSAGE AND WASHINGTON COUNTIES. AREAS NORTH OF BARTLESVILLE AND
PAWHUSKA WERE RECEIVING RAIN.

SOME OF THE THUNDERSTORMS MAY PRODUCE BRIEF GUSTY WINDS...AS WELL AS
FREQUENT LIGHTNING AND HEAVY RAIN. THE SHOWERS AND THUNDERSTORMS IN
EXTREME NORTHERN OKLAHOMA WERE MOVING TO THE SOUTHEAST AT 15 MPH.

THE SHOWER AND THUNDERSTORM ACTIVITY WAS DEVELOPING AHEAD OF A STRONG
FRONTAL SYSTEM. AT 11 PM...THE COLD FRONT WAS MOVING INTO EXTREME
NORTHERN KANSAS. TEMPERATURES BEHIND THE FRONT WERE FALLING INTO THE
50S AND 60S.

SCATTERED SHOWERS AND THUNDERSTORMS WILL GRADUALLY SPREAD SOUTHWARD
ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. SCATTERED
SHOWERS WILL MOVE INTO THE TULSA AREA AROUND 300 AM...AND INTO THE
FAYETTEVILLE ARKANSAS AREA AFTER 500 AM.

THE COLD FRONT WILL BRING NORTH WINDS AND COOLER AIR TO EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS ON THURSDAY. THE FRONT WILL MOVE INTO
NORTHEAST OKLAHOMA THURSDAY MORNING...AND THROUGH MOST OF SOUTHEAST
OKLAHOMA AND NORTHWEST ARKANSAS THURSDAY AFTERNOON.

IF IT RAINvS IN TULSA TONIGHT OR THURSDAY...IT WILL BE THE FIRST DAY
SINCE AUGUST 6 THAT MEASURABLE RAIN HAS FALLEN.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 12:05 AM CDTSevere Thunderstorm WarningTSAOsage40 min
Sep 7, 12:39 AM CDTSevere Thunderstorm WarningTSAOsage51 min
Sep 7, 1:26 AM CDTSevere Thunderstorm WarningTSAOsage49 min
Sep 7, 2:04 AM CDTFlash Flood WarningTSAOsage3 hr
Sep 7, 3:16 AM CDTSevere Thunderstorm WarningTSACreek, Pawnee44 min
Sep 7, 3:41 AM CDTSevere Thunderstorm WarningTSATulsa49 min
Sep 7, 3:59 AM CDTSevere Thunderstorm WarningTSACreek31 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.