Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 83, NWS Tulsa, OK

April 29, 1995Osage County, Washington County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 29, 1995, 1:54 AM CDT for Osage County, Washington County, Oklahoma. It was in force for 66 min.

The area

The counties it named.

The facts

Issued: Apr 29, 1995, 1:54 AM CDT (06:54 UTC)
Expired: Apr 29, 1995, 3:00 AM CDT
In force: 66 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Osage County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 76 km from the middle of the area, began a volume at 06:54 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 00:00Z, 6.9 hours before the alert went out and 197 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: 174 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 886 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 199 m²/s²
0-3 km storm-relative helicity: 409 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 290655
SVRTUL
OKC105-113-147-290800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
154 AM CDT SAT APR 29 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST OKLAHOMA
 
   ...NOWATA COUNTY...CENTRAL OSAGE COUNTY...WASHINGTON COUNTY
 
AT 151 AM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS EXTENDING FROM 5 MILES SOUTHWEST OF BURBANK TO NEAR
BARTLESVILLE. MOVEMENT WAS EAST AT 20 MPH. THE CITIES OF
BARTLESVILLE...NOWATA AND PAWHUSKA ARE IN THE PATH OF THESE STORMS.
LOCALLY HEAVY RAINFALL IS EXPECTED AS WELL.
 
 
HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA.
 
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 28, 9:19 PM CDT, 4 hours 35 minutes earlier.

Area forecast discussion, Apr 28, 9:19 PM CDT, 4 hours 35 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
915 PM CDT FRI APR 28 1995

WL MAKE NO SIG CHGS THIS UPDAT. OUN SNDG SHOWED GUD LO LVL MSTR
BLO STG CAP...WITH VRY STEEP LAPSE RATES ABOVE THE CAP. AREA SNDS
AND EVE PROFILER DATA INDICATE IMPRESSIVE LO LVL WND SHEAR
ASSOCIATED WITH WAA. STILL EXPECT SHOWERS AND STORMS TO DVLP AND
BECOME MORE NUMEROUS TONITE AS LOW LVL WAA ENHANCES LIFT AHD OF
WK UPR SYSM. STRONGEST STORMS LIKELY TO OCCUR NR THE SFC WARMFRONT
WHICH EXTDD FROM N OF GAG TO EAST OF SPS AT 02Z.

IF WIDESPREAD CONVECTION DOES NOT OCCUR TONITE OR EARLY SAT...THEN
STAGE COULD BE SET FOR ROUND OF SEVERE STORMS IN FA SAT AFTN AS
COLD FRONT NOW HIN WRN KS MOVES SE.
                                                     /9
.TUL...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 1:05 AM CDT	Severe Thunderstorm Warning	TSA	Osage	55 min
Apr 29, 1:54 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	66 min
Apr 29, 2:50 AM CDT	Flash Flood Warning	TSA	Nowata, Osage, Washington	3 hr
Apr 29, 2:54 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Tulsa	51 min
Apr 29, 3:03 AM CDT	Severe Thunderstorm Warning	TSA	Rogers, Washington	42 min
Apr 29, 3:41 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	49 min
Apr 29, 3:56 AM CDT	Flash Flood Warning	TSA	Pawnee, Rogers, Tulsa	3 hr
Apr 29, 4:38 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes	52 min
Apr 29, 5:09 AM CDT	Flash Flood Warning	TSA	Creek	3 hr
Apr 29, 5:09 AM CDT	Flash Flood Warning	TSA	Wagoner	3 hr
Apr 29, 5:57 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	48 min
Apr 29, 6:10 AM CDT	Flash Flood Warning	TSA	Muskogee	3 hr
Apr 29, 7:26 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	49 min
Apr 29, 7:36 AM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee	3 hr
Apr 29, 9:43 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	47 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.