Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 30, NWS Tulsa, OK

April 11, 1992Creek County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 11, 1992, 7:44 PM CDT for Creek County, Oklahoma. It was in force for 61 min. 1 report 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
Apr 11, 1992, 7:44 PM CDT (00:44 UTC)
Expired
Apr 11, 1992, 8:45 PM CDT
In force
61 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Creek County, OK

What was reported inside it

TimeReportWhereRemark
Apr 11, 8:00 PM CDTHail 1.75Creek, 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 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 1992-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2045 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1992-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2045 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

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.

In the hours before

Special weather statement, Apr 11, 4:55 PM CDT, 2 hours 49 minutes before
OKZ026>029-112300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
455 PM CDT SAT APR 11 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM FOR MUCH OF
NORTHEAST OKLAHOMA...

AT 450 PM NATIONAL WEATHER SERVICE RADAR AT TULSA SHOWED A VERY STRONG
THUNDERSTORM DEVELOPING RAPIDLY IN NORTHERN OSAGE COUNTY OVER THE HULAH
RESERVOIR. THIS THUNDERSTORM WAS SHOWING VERY LITTLE MOVEMENT AT THE
PRESENT TIME. SMALL HAIL AND GUSTY WINDS ARE POSSIBLE WITH THIS STORM
ALONG WITH VERY HEAVY RAINFALL.

OTHER STRONG TO SEVERE THUNDERSTORMS WERE OVER SOUTHEAST KANSAS. THE
INDIVIDUAL THUNDERSTORMS WERE SHOWING LITTLE MOVEMENT BUT AS EACH
INDIVIDUAL STORM BEGINS TO WEAKEN...NEW STORMS DEVELOP FURTHER SOUTH SO
THE NET MOVEMENT OF THE KANSAS THUNDERSTORMS WERE TO THE SOUTH AT
AROUND 25 MILES AN HOUR. THESE THUNDERSTORMS SHOULD DEVELOP SOUTH INTO
NORTHEAST OKLAHOMA BEFORE 6 PM THIS EVENING.

ALL PERSONS IN NORTHEAST OKLAHOMA SHOULD KEEP ABREAST OF THE LATEST
WEATHER DEVELOPMENTS THIS EVENING AND BE PREPARED TO SEEK SAFE INDOOR
SHELTER IF THREATENING WEATHER APPROACHES.

STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION FROM THE
NATIONAL WEATHER SERVICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 7:04 PM CDTSevere Thunderstorm WarningTSACreek, Osage41 min
Apr 11, 7:20 PM CDTSevere Thunderstorm WarningTSATulsa55 min
Apr 11, 7:29 PM CDTSevere Thunderstorm WarningTSADelaware46 min
Apr 11, 8:08 PM CDTSevere Thunderstorm WarningTSAMayes67 min
Apr 11, 8:12 PM CDTSevere Thunderstorm WarningTSATulsa, Wagoner48 min
Apr 11, 8:30 PM CDTSevere Thunderstorm WarningTSAAdair60 min
Apr 11, 8:41 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee64 min
Apr 11, 8:51 PM CDTSevere Thunderstorm WarningTSAMuskogee54 min
Apr 11, 9:01 PM CDTSevere Thunderstorm WarningTSAWagoner44 min
Apr 11, 9:18 PM CDTSevere Thunderstorm WarningTSAOkmulgee57 min
Apr 11, 9:26 PM CDTSevere Thunderstorm WarningTSARogers49 min
Apr 11, 10:15 PM CDTSevere Thunderstorm WarningTSARogers45 min
Apr 12, 12:30 AM CDTSevere Thunderstorm WarningTSAPawnee60 min
Apr 12, 1:32 AM CDTSevere Thunderstorm WarningTSARogers43 min
Apr 12, 2:00 AM CDTSevere Thunderstorm WarningTSAMayes60 min
Apr 12, 3:02 AM CDTSevere Thunderstorm WarningTSARogers43 min
Apr 12, 3:35 AM CDTFlash Flood WarningTSARogers3 hr
Apr 11, 8:47 PM CDTSevere Thunderstorm WarningTSABenton58 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1992Every 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.