Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 192, NWS Tulsa, OK

May 6, 1996Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 1996, 4:19 AM CDT for Okfuskee County, Okmulgee County, Oklahoma. It was in force for 56 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 6, 1996, 4:19 AM CDT (09:19 UTC)
Expired: May 6, 1996, 5:15 AM CDT
In force: 56 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 09:22 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.

What was reported inside it

Time	Report	Where
May 6, 4:20 AM CDT	Hail 0.88	Pharoah, OK
May 6, 4:25 AM CDT	Hail 0.75	Henryetta, OK
May 6, 4:25 AM CDT	Hail 0.75	Henryetta, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.3 hours before the alert went out and 120 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: 2468 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1298 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 060921
SVRTUL
OKC107-111-061015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
419 AM CDT MON MAY 6 1996
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...SOUTHEASTERN OKFUSKEE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...SOUTHERN OKMULGEE COUNTY
 
AT 417 AM...RADAR SHOWED A SEVERE THUNDERSTORM NEAR PHARAOH IN SOUTHEAST
OKFUSKEE COUNTY. THE STORM WAS MOVING NORTHEAST AT 15 MPH. BRYANT AND
HENRYETTA ARE 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.
 
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 5, 9:18 PM CDT, 7 hours 1 minute earlier.

Area forecast discussion, May 5, 9:18 PM CDT, 7 hours 1 minute before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT SUN MAY 5 1996

LAST NITE ABT THIS TIME...FIRST ECHOS OF STILL ONGOING MCS
NOW REACHING E COAST WERE DVLPNG IN NW KS. SFC FNT NOW
ORIENTATED DIFFERENTLY SW/NE ACRS OK BUT IS STNRY WITH
SFC LOW IN SW OK. FNT EXTNDS BACK INTO NE CORNER OF NM
AND LATEST SAT PICS SHOW SOME ENHANCED CLD TOPS NEAR
CO/NM BORDER AHEAD OF UPPER DISTURBANCE MOVING INTO
NW NM. COULD THIS BE THE BEGINNING OF ANOTHER MCS THAT
CUD TRAK THRU NW/NC OK AND INTO E OK BY ERLY MON MORN.
THIS EVES UA ANAL SHOWS BEST H85 TADV IN TX/OK PAN HANDLES SO THIS
SEEMS LIKE A GUD BET. QUESTION IS TIMING OF PCP...FOR TONIGHT PERIOD
OR MONDAY MORNING PERIOD.

ALSO STILL HAVE A FEW RW ALNG RED RIVER ASSOC WITH SUB-TROP DISTURB
MOVING THRU TX. THESE MAY AFFECT ZN 77 LATER ON SO WILL ADD SOME CHC
POPS THERE TONIGHT.
AIRMASS HAS GOTTEN PLENTY JUICY WITH MESONET SHOWING LOWER 70S
DWPTS ACROSS SE/EC OK...BUT CAP HELD OUT FOR THE MOST PART
ONLY ALLOWING A FEW ISO RW LATE THIS PM.

WILL WAIT TO SEE NEW ETA BEFORE MAKING FINAL UPDATE DECISION ON POPS
BUT WILL MOST LIKELY KEEP CHC POPS GOING TONIGHT AND UP POPS FOR
EXPECTED MCS MONDAY MORNING. WILL ALSO HAVE TO TINKER WITH WINDS
WITH FNT HALF WAY THRU NE OK.  /13

.TUL...
OK...NONE.
AR...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 11:43 PM CDT	Severe Thunderstorm Warning	TSA	Creek	47 min
May 6, 12:27 AM CDT	Severe Thunderstorm Warning	TSA	Creek	48 min
May 6, 2:09 AM CDT	Severe Thunderstorm Warning	TSA	Okmulgee, Tulsa, Wagoner	51 min
May 6, 7:24 AM CDT	Severe Thunderstorm Warning	TSA	Osage	51 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.