Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 414, NWS Tulsa, OK

September 30, 1995McIntosh County, Muskogee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 30, 1995, 6:38 PM CDT for McIntosh County, Muskogee County, Oklahoma. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Sep 30, 1995, 6:38 PM CDT (23:38 UTC)
Expired
Sep 30, 1995, 7:30 PM CDT
In force
52 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties McIntosh County, OK, Muskogee County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.6 hours before the alert went out and 173 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 12:00Z on 1995-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 977 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 12:00Z on 1995-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 367 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
977 J/kg
Mixed-layer CIN
-219 J/kg
Mixed-layer LCL
899 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
367 m²/s²
0-3 km storm-relative helicity
361 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 302340 RRA
SVRTUL
OKC091-101-010030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
638 PM CDT SAT SEP 30 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...NORTHERN MCINTOSH COUNTY...SOUTHERN MUSKOGEE COUNTY
 
AT 640 PM WEATHER SERVICE RADAR SHOWED A SMALL LINE OF SEVERE
THUNDERSTORMS OVER SOUTHWESTERN MUSKOGEE COUNTY AND NORTHWESTERN
MCINTOSH COUNTY...MOVING EAST AT 25 MPH.  OKTAHA AND CHECOTAH ARE
IN THE PATH OF THESE STORMS.
 
HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 65 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.

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 30, 3:55 PM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Sep 30, 3:55 PM CDT, 2 hours 43 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
345 AM CDT SAT SEP 30 1995

THE COLD FRONT MOVING INTO ERN OK NOW WILL MAKE IT THRU NW AR AND
MOST OF ERN OK DURING THE EVENING AND NIGHT...AND TO MCCURTAIN
COUNTY BY MORNING.  WINDS ARE SHIFTING TO SW AHEAD OF THE FRONT AND
WEAKENING ANY CONVERGENCE.  STILL...A LINE OF SHOWERS/TSHWRS HAS
DEVELOPED FROM CREEK TO NOWATA COUNTY.  XPC THIS LINE TO BE ALL THE
PCPN ASSOCD WITH THE FRONT.  WILL TRY TO TIME THE LINE TO MAKE THE
ZONE FORECASTS FOR TONIGHT.  GOOD MOISTURE IS STREAMING NEWD AHEAD
OF THE FRONT...AND IS SHOWN IN MSTR CONVERGENCE.  SO...MOS POPS
WILL BE TOO LOW AND WILL ADJUST UP...EXPECTING A BROKEN LINE RW/TRW
POSSIBLY DMSHG AFT SUNSET.

MOS TEMPS LOOK REASONABLE AND WILL STAY CLOSE TO THEM WITH VERY
LITTLE ADJUSTMENT.

PRELIM NMBRS
TUL UB 058/079 053/080 058 021000
FSM UB 062/083 055/081 060 025-00
MLC UB 060/080 056/082 060 024-0-*
BVO UB 054/079 051/079 XXX 02-000
IDB BB 064/084 061/081 XXX 02420-
FYV UB 058/078 050/077 XXX 025000
BYV UB 058/078 048/077 XXX 025000

/02

.TUL...NONE.

In the hours before

Special weather statement, Sep 30, 2:05 PM CDT, 4 hours 33 minutes before
OKKZ054>077-ARZ001-002-010-011-019-029-011200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
205 PM CDT SAT SEP 30 1995

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS LATE THIS AFTERNOON AND
THIS EVENING.

THE TAIL OF AN UPPER ATMOSPHERIC DISTURABANCE MOVING ACROSS THE
NORTHERN PLAINS WILL BRUSH EASTERN OKLAHOMA AND NORTHWEST ARKANAS
LATE THIS AFTERNOON AND EVENING.  THIS DISTURBANCE WILL COMBINE
WITH A COLD FRONT THAT WILL MOVE SOUTHEAST ACROSS THE AREA AND A
MODERATELY UNSTABLE ATMOSPHERE TO PRODUCE A SLIGHT RISK OF SEVERE
THUNDERSTORMS.

THE MAIN THREAT FROM THE THUNDERSTORMS WILL BE LARGE HAIL AND
DAMAGING WINDS.  AT THIS TIME...IT APPEARS THE WIND PROFILE ALOFT
DOES NOT SUPPORT A THREAT FOR TORNADOES.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT AGENCIES SHOULD BE ALERT TO
THE POSSIBILITY OF SEVERE STORMS IN THE AREA LATE THIS AF6TERNOON
AND EVENING AND BE PREPARED FOR ACTIVATION.
Special weather statement, Sep 30, 6:36 PM CDT, 2 minutes before
OKZ068-010015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
636 PM CDT SAT SEP 30 1995

...STRONG THUNDERSTORMS MOVING ACROSS CHEROKEE COUNTY...

AT 635 PM WEATHER SERVICE RADAR SHOWED A SMALL LINE OF STRONG
THUNDERSTORMS OVER FAR WESTERN CHEROKEE COUNTY...WEST OF HULBERT...
MOVING EAST AT 20 MPH.  THE LINE OF THUNDERSTORMS WILL TRACK ACROSS
CHEROKEE COUNTY...INCLUDING THE TAHLEQUAH AREA...THROUGH 730 PM.

RADAR INDICATES THAT HEAVY RAIN AND 30 TO 50 MPH WINDS ARE LIKELY
WITH THIS LINE OF THUNDERSTORMS.  PERSONS IN THE PATH OF THESE
STORMS SHOULD SEEK SHELTER UNTIL THE STORMS HAVE PASSED.  IF
FURTHER INTENSIFICATION OCCURS...A WARNING MAY BE NEEDED.
Special weather statement, Sep 30, 6:37 PM CDT, 1 minute before
OKZ068-010015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
636 PM CDT SAT SEP 30 1995

...STRONG THUNDERSTORMS MOVING ACROSS CHEROKEE COUNTY...

AT 635 PM WEATHER SERVICE RADAR SHOWED A SMALL LINE OF STRONG
THUNDERSTORMS OVER FAR WESTERN CHEROKEE COUNTY...WEST OF HULBERT...
MOVING EAST AT 20 MPH.  THE LINE OF THUNDERSTORMS WILL TRACK ACROSS
CHEROKEE COUNTY...INCLUDING THE TAHLEQUAH AREA...THROUGH 730 PM.

RADAR INDICATES THAT HEAVY RAIN AND 30 TO 50 MPH WINDS ARE LIKELY
WITH THIS LINE OF THUNDERSTORMS.  PERSONS IN THE PATH OF THESE
STORMS SHOULD SEEK SHELTER UNTIL THE STORMS HAVE PASSED.  IF
FURTHER INTENSIFICATION OCCURS...A WARNING MAY BE NEEDED.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 5:03 PM CDTSevere Thunderstorm WarningTSAWagoner42 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.