Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 134, NWS Tulsa, OK

May 17, 1995Okfuskee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 17, 1995, 11:33 AM CDT for Okfuskee County, Oklahoma. It was in force for 34 min.

The area

The counties it named.

The facts

Issued: May 17, 1995, 11:33 AM CDT (16:33 UTC)
Expired: May 17, 1995, 12:07 PM CDT
In force: 34 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Okfuskee County, OK

The radar

The Norman radar (KTLX), 88 km from the middle of the area, began a volume at 16:35 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 12:00Z, 4.6 hours before the alert went out and 101 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: 436 J/kg
Mixed-layer CIN: -399 J/kg
Mixed-layer LCL: 918 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 406 m²/s²
0-3 km storm-relative helicity: 401 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 171634
SVRTUL
OKC107-111-171715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1133 AM CDT WED MAY 17 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...NORTHERN OKFUSKEE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...NORTHERN OKMULGEE COUNTY
 
AT 1133 AM...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHEAST OF
BOLEY MOVING NORTHEAST AT 55 MPH. MASON AND BEGGS ARE IN THE PATH OF
THIS STORM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRHODUCE 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 May 17, 9:53 AM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, May 17, 9:53 AM CDT, 1 hour 40 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
945 AM CDT WED MAY 17 1995

12Z H8 ANALYS CONFIRMS PROGS OF STG LO LVL JET TRANSLATING EWD INTO
EOK TDA WITH FWD INDCTG WNDS OF 65 KTS.  H7 ANALYS INDCTS CAPPED MID
LVLS ABT TO BRK WITH COLD AIR ADVCTN.  H5 ANALYS INDCTS STG UPR SYS
WITH 95 KT WNDS ROTATING ARND BASE OF TROF.  SFC ANALYS INDCTS BNDRY
NORTH OF FA.  SELS HAS SVR WX THREAT HNDLD WELL WITH CURRENT WTCHS.
CONSIDERED FFA BUT BLV HVYST RAINFALL WL CONCNTRT NORTH OF SFC BNDRY
WITH EOK/NWAR UNDER MORE OF A SVR WX THREAT THIS AFTN.  MAY HV TO
CONSIDER FFA FOR NERN OK/NWRN AR TNGT BUT WL WAIT TIL AFTN PCKG.

..11..

.TUL...

In the hours before

Special weather statement, May 17, 6:09 AM CDT, 5 hours 24 minutes before

ARZ001-002-010-011-019-029-OKZ054>077-181200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
600 AM CDT WED MAY 17 1995

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT
ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.

EARLY THIS MORNING A COLD FRONT ACROSS CENTRAL AND SOUTHERN KANSAS
WAS MOVING SOUTHWARD. THE FRONT EXTENDED BACK INTO A LOW PRESSURE
SYSTEM IN THE NORTHEAST PART OF THE TEXAS PANHANDLE. A DRYLINE
EXTENDED SOUTH FROM THIS LOW ACROSS WEST TEXAS.

THE COLD FRONT IS EXPECTED TO BECOME STATIONARY NEAR THE OKLAHOMA
KANSAS BORDER LATER THIS MORNING. AS A VIGOROUS UPPER LEVEL
DISTURBANCE MOVES INTO THE PLAINS TODAY...THE SURFACE LOW WILL MOVE
EASTWARD ALONG THE FRONT BRINGING THE DRYLINE WITH IT. THE DRYLINE
IS EXPECTED TO BE IN CENTRAL OKLAHOMA BY THIS EVENING AND THEN MOVE
ACROSS THE AREA TONIGHT.

ABUNDANT MOISTURE AND INSTABILITY REMAIN IN PLACE ACROSS THE AREA.
AS THE UPPER LEVEL SYSTEM MOVES TOWARD THE AREA...THE CAP THAT HAS
LIMITED THUNDERSTORM DEVELOPMENT FOR THE LAST SEVERAL DAYS WILL
WEAKEN THUS ALLOWING THUNDERSTORMS TO DEVELOP AND MOVE INTO THE
AREA.

EARLY THIS MORNING AN AREA OF STRONG TO SEVERE THUNDERSTORMS HAD
ALREADY DEVELOPED IN WEST TEXAS AND WESTERN OKLAHOMA WHERE THE CAP
HAD ALREADY WEAKENED. THE STORMS WERE MOVING RAPIDLY NORTHEAST AND
COULD AFFECT PARTS OF NORTHEAST OKLAHOMA THIS MORNING. ADDITIONAL
THUNDERSTORM DEVELOPMENT IS EXPECTED THROUGHOUT THE DAY AND INTO
THE NIGHT. AFTER THE MORNING THUNDERSTORMS MOVE BY...STRONG TO
SEVERE THUNDERSTORMS ARE EXPECTED ACROSS EASTERN OKLAHOMA BY
AFTERNOON AND INTO NORTHWEST ARKANSAS BY LATE AFTERNOON OR EARLY
EVENING.

A VERY STRONG JET STREAM WILL MOVE ACROSS THE AREA TODAY AND
TONIGHT PROVIDING A FAVORABLE WIND PROFILE FOR SEVERE
THUNDERSTORMS. DAMAGING WINDS AND LARGE HAIL ARE THE MAIN SEVERE
WEATHER THREATS. HOWEVER SOME TORNADOES WILL ALSO BE POSSIBLE...
MAINLY IN SOUTHEAST OKLAHOMA. IN ADDITION TO THE POTENTIAL FOR
SEVERE WEATHER...THERE IS ALSO THE POSSIBILITY OF VERY HEAVY
RAINFALL WITH THESE STORMS.

EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS SHOULD BE
PREPARED FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK. ACTIVATION MAY
BE REQUIRED IN NORTHEAST OKLAHOMA THIS MORNING AND ACROSS THE
REMAINDER OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS BY THIS
AFTERNOON.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 11:33 AM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	42 min
May 17, 12:12 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Wagoner	48 min
May 17, 1:20 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	28 min
May 17, 4:20 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	55 min
May 17, 4:40 PM CDT	Tornado Warning	TSA	Pawnee	35 min
May 17, 4:53 PM CDT	Tornado Warning	TSA	Osage	52 min
May 17, 5:38 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	52 min
May 17, 5:49 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa, Wagoner	41 min
May 17, 5:52 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	53 min
May 17, 6:27 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	33 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; radar from the NEXRAD Level II archive.