Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 65, NWS Tulsa, OK

May 11, 1992Adair County, Delaware County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 11, 1992, 3:48 AM CDT for Adair County, Delaware County, Oklahoma. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
May 11, 1992, 3:48 AM CDT (08:48 UTC)
Expired
May 11, 1992, 4:15 AM CDT
In force
27 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Adair County, OK, Delaware County, OK

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 8.8 hours before the alert went out and 118 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, Springfield, MO at 00:00Z on 1992-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 287 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, Springfield, MO at 00:00Z on 1992-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 square meters per square second.193958Sfc1 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
287 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 110848
SVRTUL
OKC001-041-110915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
348 AM CDT MON MAY 11 1992
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN EAST CENTRAL OKLAHOMA
 
   ...ADAIR COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...DELAWARE COUNTY
 
AT 345 AM RADAR INDICATED SEVERE THUNDERSTORMS MOVING INTO WESTERN
ADAIR AND SOUTHWESTERN DELAWARE COUNTIES. THESE STORMS HAVE A HISTORY
OF PRODUCING WIND DAMAGE. THE STORMS ARE MOVING EAST NORTHEAST AT 50
MILES AN HOUR AND WILL BE AFFECTING THE TOWNS OF STILWELL...WESTVILLE
...KANSAS AND COLCORD BEFORE 415 AM.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.
 
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.

In the hours before

Special weather statement, May 10, 11:37 PM CDT, 4 hours 11 minutes before
OKZ026>031-033-110535-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1135 PM CDT SUN MAY 10 1992

...THUNDERSTORMS HAVE MOVED INTO THE TULSA AREA...

SHOWERS AND EMBEDDED THUNDERSTORMS HAVE MOVED INTO THE TULSA AREA.
AT 1130 PM SEVERAL STRONG THUNDERSTORMS WERE OVER TULSA...CREEK AND
OKFUSKEE COUNTIES.  THESE STORMS WILL PRODUCE DANGEROUS LIGHTNING AND
PERIODS OF VERY HEAVY RAIN AS THEY MOVE NORTHEAST AT 30 MILES AN HOUR.
STAY INDO)ORS IF THUNDERSTORMS ARE OCCURRING IN YOUR AREA.  STAY TUNED
TO THIS STATION FOR THE LATEST INFORMATION.
Special weather statement, May 11, 1:48 AM CDT, 2 hours before
OKZ026>031-110900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
150 AM CDT MON MAY 11 1992

...THUNDERSTORMS PRODUCING HEAVY RAIN IN EASTERN OKLAHOMA...

AT 145 AM NATIONAL WEATHER SERVICE RADAR IN TULSA SHOWED A 70 MILE WIDE
BAND OF THUNDERSTORMS EXTENDING FROM NORTHEAST TO CENTRAL OKLAHOMA. THE
THUNDERSTORMS WERE CENTERED ALONG A LINE FROM MIAMI TO TULSA TO STROUD.
THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR AND THUS
WERE MOVING ACROSS THE SAME AREAS. THIS WAS CAUSING HEAVY RAINFALL TO
PERSIST IN THE SAME AREAS FOR EXTENDED PERIODS OF TIME. AS OF 140 AM
ABOUT 1 INCH OF RAIN HAS FALLEN AT THE TULSA INTERNATIONAL AIRPORT.
THE STRONGEST THUNDERSTORMS ARE CURRENTLY IN OKFUSKEE AND SOUTHERN
CREEK COUNTIES AND THESE STORMS WILL TRACK NORTHEAST TOWARD TULSA AND
ROGERS COUNTIES BETWEEN NOW AND 4 AM. PERSISTENT HEAVY RAINFALL COULD
CAUSE SOME FLOODING OF LOW LYING AREAS IN THESE AREAS.

STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION FROM THE
NATIONAL WEATHER SERVICE.
Local storm report, May 11, 2:52 AM CDT, 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
251 AM CDT MON MAY 11 1992

TIME(CDT)    COUNTY         REPORT

245 AM       MCINTOSH       70 MILE AN HOUR WINDS AT EUFAULA

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 2:42 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee48 min
May 11, 3:30 AM CDTTornado WarningTSACherokee30 min
May 11, 3:16 PM CDTTornado WarningTSAPittsburg44 min
May 11, 3:22 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg38 min
May 11, 3:30 PM CDTSevere Thunderstorm WarningTSAPittsburg45 min
May 11, 4:23 PM CDTTornado WarningTSAPittsburg67 min
May 11, 5:31 PM CDTFlash Flood WarningTSAMcIntosh, Pittsburg4 hr
May 11, 5:31 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah59 min
May 11, 5:48 PM CDTTornado WarningTSALatimer42 min
May 11, 5:57 PM CDTSevere Thunderstorm WarningTSAOsage63 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; the sounding from the Mesonet's radiosonde archive.