Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 112, NWS Tulsa, OK

May 7, 1995Cherokee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 7, 1995, 9:22 PM CDT for Cherokee County, Oklahoma. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
May 7, 1995, 9:22 PM CDT (02:22 UTC)
Expired
May 7, 1995, 10:30 PM CDT
In force
68 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Cherokee County, OK

The radar

The Tulsa radar (KINX), 59 km from the middle of the area, began a volume at 02:26 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

Springfield, MO (KUMN), launched 00:00Z, 2.4 hours before the alert went out and 154 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 1995-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 464 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 1995-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 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
464 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 080222
SVRTUL
OKC021-035-097-080330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
922 PM CDT SUN MAY 7 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...CHEROKEE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...CRAIG COUNTY...MAYES COUNTY
 
AT 920 PM A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM NEAR SOUTH
COFFEYVILLE TO CLAREMORE TO 15 MILES NORTHWEST OF EUFAULA. THE
LINE OF STORMS WAS MOVING EAST AT 45 MPH.  DAMAGE HAS BEEN REPORTED IN
TULSA FROM THESE STORMS.
 
HAIL TO THE SIZE OF DIMES IN THE WARNED AREA.
 
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.
 
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 May 7, 9:01 PM CDT, 21 minutes earlier.

Area forecast discussion, May 7, 9:01 PM CDT, 21 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
845 PM CDT SUN MAY 7 1995

LN OF SVR STORMS JUST ENTERING WESTERN PART OF FA...EXTENDS
WELL SOUTH INTO TX. OUN SOUNDING CONTAINED OVER 2500 J/KG
CAPE AND CLOSE TO 200 M/S/S...AND MESONET OBS SHOW SFC
DEWPT IN LOWER 70S AHEAD OF STORMS IN E OK. WINDS VEER TO
JUST TO THE WEST BEHIND SQUALL LINE WITH DWPTS DROPING INTO UPPER
50S...BUT WINDS OVER WESTERN OK HAVE BACKED TO SOUTH AHEAD OF
REAL DRYLINE STILL OVER EASTERN PART OF TX PH.

EXPECT SQUALL LN TO CONT TO DVLP EASTWARD INTO FA DURING THE
REST OF THE NIGHT AS MID LVL CAA MOVES OVR HIGHER DWPTS.
MOST OF NE OK HAS ALREADY RECEIVED FROM 1 TO 4 INCHES OF
RAIN AND ADDITIONAL RAINS CUD CAUSE MAJOR FLOODING PROBLEMS.
MANY RIVERS IN NE OK NEAR OR OVR BANKFULL SO BACKWATER WILL ADD
TO FLASH FLOOD POTENTIAL.
FLASH FLOOD GUIDENCE ALSO LOW OVR REST OF FA...AND FROM 2 TO 4
INCHES OF RAIN MAY FALL ELSEWHERE THROUGH EARLY MONDAY MORNING.
WILL KEEP FFA GOING AS IN PREV FCST.

NO NEW MODEL DATA TO LUK AT...BUT APPEARS LLVL MOIST SHUD SHALLOW OUT
QUICKLY MONDAY MORNING FROM WEST TO EAST. BEST CHC FOR LINGERING
MORNING TRW IN SE OK AND W ARK.

WILL UP POPS TO CLOSE TO 100% OVR ALL OF FA REST OF TONIGHT. PCP SHUD
TAPER AFTER MIDNIGHT FROM W TO E...BUT WILL LEAVE SLGT CHC IN WRN ZNS
FOR MORNING RW AND 40-50% POPS IN EASTERN ZNS ON MONDAY.
/13

.TUL...FFA OKZ054>077-ARZ001-002-010-011-019-0029 TONIGHT.

In the hours before

Special weather statement, May 7, 7:14 PM CDT, 2 hours 8 minutes before
OKZ054-059-060-064-080100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
715 PM CDT SUN MAY 7 1995

...STRONG TO SEVERE THUNDERSTORMS WILL MOVE BACK INTO PARTS OF
OSAGE...PAWNEE AND CREEK COUNTIES BY 8PM...

AT 710PM...RADAR SHOWED A LINE OF STRONG TO SEVERE THUNDERSTORMS MOVING
EAST THROUGH KAY...NOBLE AND PAYNE COUNTIES. THE STORMS WERE MOVING
NORTHEAST AT 35 TO 40 MPH AND MAY CONTAIN LARGE HAIL AND STRONG WINDS.
THEY MAY MOVE ~INTO THE BURBANK...FAIRFAX...PAWNEE AND DRUMRIGHT AREAS.
PEOPLE IN THOSE AREAS SHOULD LISTEN FOR FURTHER UPDATES AND POSSIBLE
WARNINGS BETWEEN 730PM AND 8PM.

A TORNADO WATCH IS ALSO IN EFFECT FOR THIS AREA UNTIL MIDNIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 9:22 PM CDTSevere Thunderstorm WarningTSACraig, Mayes68 min
May 7, 10:45 PM CDTFlash Flood WarningTSACreek, Tulsa2 hr
May 7, 10:57 PM CDTSevere Thunderstorm WarningTSAAdair48 min
May 7, 11:05 PM CDTSevere Thunderstorm WarningTSAPittsburg40 min
May 7, 11:24 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer51 min
May 8, 12:11 AM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah64 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.