Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 256, NWS Tulsa, OK

June 1, 1996Okmulgee County, Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 1, 1996, 2:30 AM CDT for Okmulgee County, Tulsa County, Oklahoma. It was in force for 45 min. 2 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: Jun 1, 1996, 2:30 AM CDT (07:30 UTC)
Expired: Jun 1, 1996, 3:15 AM CDT
In force: 45 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Okmulgee County, OK, Tulsa County, OK

The radar

The Tulsa radar (KINX), 48 km from the middle of the area, began a volume at 07:33 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	Remark
Jun 1, 2:30 AM CDT	Thunderstorm Wind	Owasso, OK
Jun 1, 2:50 AM CDT	Thunderstorm Wind 52	Leonard, 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, 7.5 hours before the alert went out and 150 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: 1608 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1191 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 11.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 31, 9:00 PM CDT, 5 hours 30 minutes earlier.

Area forecast discussion, May 31, 9:00 PM CDT, 5 hours 30 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT FRI MAY 31 1996

MOST PRECIP HAS DIMINISHED/MVD OUT OF FA THIS EVE. ONLY XCPN IS IN
NW AR ZNS NR THE MO BRDR. HV SEEN SOME REDVLPMNT IN THAT AREA IN
THE PAST HR OR SO. OTRW MOST TRW ACTVTY ATTM IS WELL N AND W OF FA.
FNTL BNDRY APRS TO STILL BE POSITIONED NW-SE ACRS OK W/LOWER CLDS
DIMINISHING IN MOST AREAS. NOT MUCH TO ADD TO PREV FCST. STILL NOT
CERTAIN WHETHER TRW COMPLEX WL MV ACRS ZNS TNGT SO WL CONT W/CHC
POPS. BUT IF IT OCCURS IT SHLD BE LATE SO WL INSERT THAT WORDING
INTO ZFP XCPT FOR THOSE FEW ZNS WHERE TRW ARE CRNTLY PERSISTING.
MAY BE A LTL MORE OPTIMISTIC IN SE ZNS AND CHG SKY COND` TO PTLY
CLDY AND LOWER POPS JUST A BIT FM CRNT FCST. OTRW MILD LOW TEMPS
AND SE WNDS IN ZFP SEEMS FINE.

07

.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
Jun 1, 12:34 AM CDT	Severe Thunderstorm Warning	TSA	Osage	41 min
Jun 1, 1:12 AM CDT	Severe Thunderstorm Warning	TSA	Osage	63 min
Jun 1, 1:25 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	65 min
Jun 1, 2:01 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Rogers	59 min
Jun 1, 2:30 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	45 min
Jun 1, 2:42 AM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	48 min
Jun 1, 3:07 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	53 min
Jun 1, 4:46 AM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	29 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.