Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 526, NWS Norman, OK

September 2, 1992Garvin County, McClain County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Sep 2, 1992, 7:39 PM CDT for Garvin County, McClain County, Oklahoma. It was in force for 66 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: Sep 2, 1992, 7:39 PM CDT (00:39 UTC)
Expired: Sep 2, 1992, 8:45 PM CDT
In force: 66 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Garvin County, OK, McClain County, OK

What was reported inside it

Time	Report	Where	Remark
Sep 2, 7:52 PM CDT	Hail 0.75	Mcclain, OK
Sep 2, 8:19 PM CDT	Hail 0.75	Garvin, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.7 hours before the alert went out and 40 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: 2037 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1242 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.9

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 2, 2:50 PM CDT, 4 hours 49 minutes earlier.

Area forecast discussion, Sep 2, 2:50 PM CDT, 4 hours 49 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
250 PM CDT WED SEP 2 1992

SFC ANALYSIS INDICATES WK MESO LOW HAS FORMED S OF GAG ALG TROF RUNNING
FM P28-LTS. OTHR FTR OF INTEREST IS OUTFLOW BNDRY WHICH XTNDS FM LOW
SEWD. WSR-88D INDICATES FINE LN OUTFLOW BNDRY LIES NR SEILING-BLANCHARD-
SULPHUR LN AND HAS NOW BCM STNRY. AMS HAS STABILIZED N OF BNDRY AND W OF
TROF. BTWN THESE FTRS LIS HAVE FALLEN TO ARND MINUS 10 WTH MCONV
MAXIMIZED E OF MESO LOW AND ALG OUTFLO ACCRDG TO ADAP/MAPS ANALYSES.
STG STMS RMN ALG OUTFLO BNDRY IN SERN OK WHL FURTHER W ALG BNDRY AND
TROF LOW-LVLS RMN CAPPED. ADAP CAP STRNGTH HAS FALLEN BELOW 2 DEG ACRS
SWRN OK/NW TX AND ANTICIPATE STMS TO FIRE AT ANYTIME. LRG CAP AND STG
WND FLDS WL RESULT IN A FEW SVR STMS. PROFILERS 88D VWP SUG SOM POTL FOR
MESOCYCLONE FORMATION AS WELL...ESP VCNTY OUTFLO BNDRY.

XPCT TROF TO GRDLY MOV INTO SC OK BFR STALLING ERLY THU MRNG AS WK S/W
SWEEPS ACRS RGN FM NW. TROF WL BCM MOR DIFFUS ON THU AND S/W WL BE PAST
AREA SO WL CONT LOW POPS ONLY ACRS SERN OK ZNS. AS TROF WASHES OUT LATE
THU INTO FRI LOW LVL MSTR SHUD SPRD BACK WWD ACRS AREA. ATTM WL KEEP
POPS BLO 20 PCT MOST OF 3RD-4TH PDS DUE TO LACK OF BNDRY LYR CONV AND WK
UPR FORCING. ONLY EXCEPTIONS WL IN SE DURG THU EVNG AND IN NW LATE FRI
AFTN WHEN NEXT WV LIFTS OUT OUT OF ROCKIES.

HIEST POPS FCST SE TNGT ALG WTH MENTION OF HVY RAFL IN ZNS. TEMPS WL BE
HIGHLY DEPENDENT UOPN POSN OF TROF/DRY AIR AND GUID VALUES SEEM IN THE
BALLPARK XCPT FOR MAXES WHICH SEEM TO WARM.  ..16..

PRELIM NUMS...
GAG 58/90/63/91 0002  PNC 65/90/69/91 3111  HBR 64/91/67/91 4111
OKC 68/91/69/91 4111  SPS 68/96/69/95 4111  DUA 69/91/69/91 7221

.OK...NONE
.TX...NONE

In the hours before

Special weather statement, Sep 2, 4:54 PM CDT, 2 hours 45 minutes before

OKZ004>021-TXZ076-077-020000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
4 55 PM CDT WED SEP 2 1992

...THUNDERSTORMS CONTINUE TO DEVELOP ACROSS OKLAHOMA CITY METRO
   AREA...

AT 455 PM SCATTERED THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE ACROSS
CENTRAL OKLAHOMA. THE HEAVIEST STORMS WERE JUST WEST OF
NEWCASTLE...5 MILES NORTHEAST OF SHAWNEE...AND ABOUT 2 MILES SOUTHEAST
OF DEL CITY.  OTHER LIGHTER SHOWERS AND STORMS WERE LOCATED 2 MILES
SOUTHEAST OF OKARCHE...IN THE EDMOND/ARCADIA AREA...AND IN MURRAY COUNTY
12 MILES SOUTHWEST OF DAVIS OVER THE ARBUCKLE MOUNTAINS. THE STORMS WERE
MOVING EAST AT 35 TO 40 MPH.

THE POSSIBILITY EXISTS FOR A FEW STORMS TO BECOME SEVERE...ALTHOUGH NO
WARNINGS ARE IN EFFECT FOR CENTRAL OKLAHOMA. HOWEVER THE STORMS MAY
PRODUCE PEA SIZE HAIL...BRIEF HEAVY RAIN...AND GUSTY WINDS. ALSO
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED.

BE ALERT TO THE DANGERS OF LIGHTNING...LIGHTNING CAN STRIKE MILES AWAY
FROM THE MAIN CORE OF THE STORM. ONE INJURY HAS ALREADY BEEN REPORTED
DUE TO A LIGHTNING STRIKE FROM THESE STORMS.

PURPURA

Local storm report, Sep 2, 5:43 PM CDT, 1 hour 56 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
5 44 PM CDT WED SEP 02 1992

TIME(CDT)/DATE               COUNTY            REPORT

5 38    /2ND                 MC CLAIN     j     1.75 TO 2 INCH HAIL
                                               2 E COLE

PURPURA

Special weather statement, Sep 2, 5:59 PM CDT, 1 hour 40 minutes before

TXZ076-077-022400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
600 PM CDT WED SEP 2 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1000 PM TONIGHT FOR
THE NORTH CENTRAL TEXAS COUNTIES OF ARCHER...BAYLOR...WILBARGER...
JACK...CLAY...MONTAGUE...WICHITA. THE WATCH INCLUDES COTTON COUNTY OF
SOUTHCENTRAL OKLAHOMA...

AT 555 PM THE WICHITA FALLS RADAR SHOWED SCATTERED STRONG THUNDERSTORMS...
SOME SEVERE...IN CENTRAL OKLAHOMA TO THE SOUTHEAST OF OKLAHOMA CITY.
OTHER VERY LIGHT SHOWERS HAVE DEVELOPED TO THE WEST OF ALTUS.
MOVEMENT OF SHOWERS AND THUNDERSTORMS WAS EAST AT 30 MPH.

NO PRECIPITATION WAS INDICATED OVER NORTH CENTRAL TEXAS AT 555 PM...HOWEVER
THUNDERSTORMS...SOME SEVERE...ARE EXPECTED TO DEVELOP WITH THE APPROACH
OF AN UPPER LEVEL DISTURBANCE FROM THE NORTHWEST.

Special weather statement, Sep 2, 6:58 PM CDT, 41 minutes before

TXZ076-077-030055-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
655 PM CDT WED SEP 2 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1000 PM TONIGHT FOR
THE NORTH CENTRAL TEXAS COUNTIES OF ARCHER...BAYLOR...WILBARGER...
JACK...CLAY...MONTAGUE...WICHITA. THE WATCH INCLUDES COTTON COUNTY OF
SOUTHCENTRAL OKLAHOMA...

AT 650 PM THE WICHITA FALLS RADAR SHOWED SCATTERED STRONG THUNDERSTORMS...
SOME SEVERE...IN CENTRAL OKLAHOMA BETWEEN OKLAHOMA CITY AND ARDMORE.
OTHER VERY LIGHT SHOWERS WERE TO THE WEST OF ALTUS. THE ONLY ACTIVITY IN
NORTH TEXAS WAS A FEW VERY LIGHT SHOWERS ON THE WILBARGER...FOARD...AND
HARDEMAN COUNTY LINES TO THE WEST OF VERNON.

MOVEMENT OF ALLj SHOWERS AND THUNDERSTORMS WAS EAST...SOUTHEAST AT 25 MPH.

Local storm report, Sep 2, 7:09 PM CDT, 30 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
710 PM CDT WED SEP 02 1992

TIME(CDT)/DATE               COUNTY            REPORT

703 PM                      MC CLAIN          4 INCH DIA HAIL IN
                                              ROSEDALE.
530 PM                      MC CLAIN          QUARTER SIZE HAIL 2 EAST
                                              OF COLE.

620 PM                      E MCCLAIN         TENNIS BALL SIZE HAIL 1
                                              MILE SOUTH OF PURCELL.

622 PM                      S CLEVELAND       BASEBALL SIZE HAIL AT
                                              LEXINGTON

330 PM          p            CHOCTAW           DIME SIZED HAIL 10 MILES
                                              SOUTH OF ANTLERS.

Local storm report, Sep 2, 7:34 PM CDT, 5 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
7 35 PM CDT WED SEP 02 1992

TIME(CDT)/DATE               COUNTY            REPORT

7 35 PM   /2ND               GARVIN            1 S STRATFORD
                                               NICKEL SIZE HAIL

PURPURA

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 7:28 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Pontotoc	77 min
Sep 2, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson	64 min
Sep 2, 7:59 PM CDT	Tornado Warning	OUN	Garvin	46 min
Sep 2, 8:10 PM CDT	Tornado Warning	OUN	Carter, Jefferson	50 min
Sep 2, 8:21 PM CDT	Severe Thunderstorm Warning	OUN	Murray	54 min
Sep 2, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	64 min
Sep 2, 9:29 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Love, Marshall	61 min
Sep 2, 9:29 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	61 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1992 Every severe thunderstorm warning in 1992

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.