Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 52, NWS Tulsa, OK

April 17, 1995Nowata County, Rogers County, Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 17, 1995, 10:32 PM CDT for Nowata County, Rogers County, Tulsa County, Oklahoma. It was in force for 43 min.

The area

The counties it named.

The facts

Issued: Apr 17, 1995, 10:32 PM CDT (03:32 UTC)
Expired: Apr 17, 1995, 11:15 PM CDT
In force: 43 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Nowata County, OK, Rogers County, OK, Tulsa County, OK

The radar

The Tulsa radar (KINX), 32 km from the middle of the area, began a volume at 03:33 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.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 3.5 hours before the alert went out and 179 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: 164 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 425 m²/s²
0-3 km storm-relative helicity: 569 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 180336 COR
SVRTUL
OKC105-111-113-131-143-180415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE TULSA OK
1032 PM CDT MON APR 17 1995

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHEAST OKLAHOMA

   ...SOUTHERN NOWATA COUNTY...OKMULGEE COUNTY
   ...SOUTHEASTERN OSAGE COUNTY...ROGERS COUNTY...TULSA COUNTY

AT 1031 PM WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM SOUTH OF BARTLESVILLE TO WEST OF TULSA TO WEST OF
OKMULGEE. THESE STORMS WERE MOVING TO THE NORTHEAST AT 40 MPH.
STRONG WINDS IN EXCESS OF 60 MPH ARE THE PRIMARY THREAT WITH THESE
STORMS.  DIME SIZE HAIL IS ALSO POSSIBLE.

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.

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 Apr 17, 9:04 PM CDT, 1 hour 28 minutes earlier.

Area forecast discussion, Apr 17, 9:04 PM CDT, 1 hour 28 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT MON APR 17 1995

00Z RAOBS CONT TO INDCT A VERY UNSTABLE AMS OVR EOK/NWAR THIS EVE
JUST WAITING FOR THE LFTG MECH TO ARRIVE.  ACTVTY STARTING TO BCM
MORE ORGANIZED WEST OF EOK AND XPCT A SQLN TO DVLP AND SWEEP THRU
AREA OVRNGT.  TIMING HAS BEEN A BIT SLOER THAN XPCTD...SO WL NOT
TRY TO BE AS FINE ON TSTMS ENDING BY A CERTAIN TIME.  STILL XCPT
SQLN T:O BE OUT OF FA BFR DABRK THO.  AM A BIT WORRIED ABT PSBL FL
FLDG AS FF GUIDNC RATHER LO.  HWVR..BLV SQLN WL MOV FAST ENUF TO
AVOID A PROLONGED PD OF HVY RAINFALL.

..11..

.TUL...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:05 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	40 min
Apr 17, 9:30 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	45 min
Apr 17, 9:39 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	51 min
Apr 17, 9:47 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Tulsa	43 min
Apr 17, 9:51 PM CDT	Tornado Warning	TSA	Okfuskee, Okmulgee	39 min
Apr 17, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	39 min
Apr 17, 10:09 PM CDT	Tornado Warning	TSA	McIntosh	36 min
Apr 17, 10:15 PM CDT	Severe Thunderstorm Warning	TSA	Washington	30 min
Apr 17, 10:24 PM CDT	Tornado Warning	TSA	Muskogee	36 min
Apr 17, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	43 min
Apr 17, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Osage	43 min
Apr 17, 10:48 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	57 min
Apr 17, 10:51 PM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee	3 hr
Apr 17, 10:56 PM CDT	Tornado Warning	TSA	Muskogee, Wagoner	49 min
Apr 17, 11:04 PM CDT	Flash Flood Warning	TSA	Muskogee, Okmulgee	3 hr
Apr 17, 11:14 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	46 min
Apr 17, 11:20 PM CDT	Tornado Warning	TSA	Cherokee	40 min
Apr 17, 11:25 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes	50 min
Apr 17, 11:25 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	50 min
Apr 17, 11:30 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	45 min
Apr 17, 11:30 PM CDT	Severe Thunderstorm Warning	TSA	Adair	45 min
Apr 17, 11:53 PM CDT	Tornado Warning	TSA	Cherokee, Delaware	37 min
Apr 18, 12:00 AM CDT	Tornado Warning	TSA	Adair	30 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.