Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 131, NWS Tulsa, OK

May 15, 1995Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 15, 1995, 5:13 AM CDT for Sequoyah County, Oklahoma. It was in force for 47 min.

The area

The counties it named.

The facts

Issued: May 15, 1995, 5:13 AM CDT (10:13 UTC)
Expired: May 15, 1995, 6:00 AM CDT
In force: 47 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Sequoyah County, OK

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 10.2 hours before the alert went out and 178 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: 489 J/kg
Mixed-layer CIN: -197 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 151013
SVRTUL
OKC135-151100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
513 AM CDT MON MAY 15 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OKLAHOMA
 
   ...EASTERN SEQUOYAH COUNTY
 
AT 512 AM THERE WAS 2 SEVERE THUNDERSTORMS...THE FIRST WAS LOCATED
3 MILES SOUTH OF GANS...THE SECOND WAS 5 MILES NORTHEAST OF SALISAW.
THE STORMS WERE MOVING NORTHEAST AT 30 MPH.  GANS AND MULDROW ARE NEAR
THE PATH OF THE STORMS.
 
HAIL TO THE SIZE OF NICKLES AND WIND GUSTS TO 60 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.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

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 15, 4:08 AM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, May 15, 4:08 AM CDT, 1 hour 5 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
405 AM CDT MON MAY 15 1995

SMALL CLUSTER OF RW/TRW HV BEEN MVG ENE ACRS SRN OK ERLY THIS
MRNG. SUPRISED THEY ARE THAT FAR N CONSIDERING ADAP ANALYSIS AND
MDLS FCST OF MOIST FLUX DIV. STRMS HV BEEN DVLPG E OF THE PRECIP
AREA W/WRN CELLS THEN WEAKENING. OTRW FNT APRS TO BE IN XTRM SE
OK THIS MRNG W/WK HI PRES ACRS KS/NE.

HI PRES TO MV OFF TO THE E TDY ALLOWING WNDS TO BCM SLY AGAIN.
APRS THAT CAP SHLD WEAKEN SOME TDY. BEST CONV AND INSTABILITY ARE
FCST ACRS SRN SCTNS SO HV PUT SLGTLY HIER POPS THERE THAN IN THE
N. INIT NMBRS ARE BASED ON THIS THINKING. WL MAKE LAST MINUTE
ADJS TO ZNS BASED ON LATEST RADAR TRENDS. PRETTY GOOD CI SHIELD
HAS SPREAD ACRS FA THIS MRNG BUT XPCT THIS TO THIN AND CONT MVG
OFF TO THE E. SO WL WORD ZNS BCMG PTLY CLDY. FWC TEMPS LOOKS
FAIRLY GOOD.

THERE MAY BE SOME TRW LINGERING INTO THE EVE HRS BUT OTRW APRS
THAT TNGT COULD BE PRECIP FREE. LOOKS LIKE GOOD LO LVL FORCING
SHLD BE FOCUSED TO THE N AND E OF FA OVRNGT WHERE MDLS ARE
INDICATING AN MCS MIGHT DVLP. BELIEVE THAT ACTVTY SHLD NOT AFFECT
FAR NRN ZNS. SO WL NOT MENTION PRECIP IN TNGT PD FOR NOW. LO
TEMPS SHLD BE MILD W/PLENTY OF MOISTURE MVG BACK OVR FA TDY AND
ONCE AGAIN HV NOT STRAYED TOO FAR FM MOS.

APRS THAT CAP WL TRY TO STRENGTHEN SOME AGAIN ON TUE. BUT A WK
S/W IS FCST TO MV ACRS THE AREA. SO WL CONT W/SLGT CHC POPS IN
MOST AREAS. WL GO A LITTLE HIER IN XTRM NW ZNS WHERE POTENTIAL
TRW DVLPMNT MAY BE AIDED BY SOME LO LVL CONV FM A NEARBY SFC
TROF. ALSO DECIDED TO KEEP ZN77 DRY. BOTH ETA AND NGM SUGGEST
INCRSG HI CLDS ACRS FA. NEVER SURE HOW BEST TO HANDLE THAT.
THOUGHT THAT CLDS MIGHT BE A LITTLE THICKER IN WRN SCTNS SO WENT
MSTLY CLDY THERE AND KEPT IT PTLY CLDY ELSEWHERE. CONTD TO LEAN
TWD THE WARMER FWC NMBRS FOR TUE. IF CLDS ARE THICKER THAN XPCTD
THESE TEMPS WL BE TOO WM.

HV BEEN KEEPING AN EYE ON THE RADAR SO HV NOT HAD MUCH OF A CHC
TO LOOK AT THE XTNDED. BUT IT APRS THAT WED NGT INTO THU COULD BE
ACTIVE W/WEST COAST SYSTEM MVG INTO THE PLAINS.

PRELIM NMBRS
TUL 82/68/86 212    FSM 85/65/88 312
MLC 85/67/89 312    BVO 82/67/87 213
FYV 83/64/87 212    IDB 89/64/90 311
BYV 80/62/85 212

07

.TUL...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 4:13 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	47 min
May 15, 4:32 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Sequoyah	43 min
May 15, 5:16 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	44 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1995 Every 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.