Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 82, NWS Tulsa, OK

May 14, 1992Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1992, 7:22 AM CDT for Sequoyah County, Oklahoma. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
May 14, 1992, 7:22 AM CDT (12:22 UTC)
Expired
May 14, 1992, 8:30 AM CDT
In force
68 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Sequoyah County, OK

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 0.4 hours before the alert went out and 178 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 12:00Z on 1992-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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 12:00Z on 1992-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 355 square meters per square second.19395878Sfc1 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
22 J/kg
Mixed-layer CIN
-327 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
355 m²/s²
0-3 km storm-relative helicity
403 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 141223
SVRFSM
OKC135-141330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
722 AM CDT THU MAY 14 1992
 
THE NATIONAL WEATHER SERVICE IN FORT SMITH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST OKLAHOMA
 
   ...SEQUOYAH COUNTY
 
A SEVERE THUNDERSTORM WAS INDICATED BY RADAR NEAR VIAN OKLAHOMA
IN WESTERN SEQUOYAH COUNTY. MOVEMENT WAS EAST AT 40 MILES AN HOUR.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 14, 4:31 AM CDT, 2 hours 51 minutes before
OKZ026>030-141030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
430 AM CDT THU MAY 14 1992

...LINE OF STRONG THUNDERSTORMS MOVING THROUGH NORTHEAST OKLAHOMA...

AT 430 AM A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM THE
KANSAS BORDER NORTH OF BARTLESVILLE SOUTHWESTWARD TO NEAR OILTON.  THE
LINE WAS MOVING EAST AT 20 MILES AN HOUR AND WILL PRODUCE SOME HAIL AND
STRONG GUSTY WINDS.  PEOPLE IN BARTLESVILLE...TULSA AND ADJACENT AREAS
SHOULD REMAIN INDOORS UNTIL THESE STORMS HAVE PASSED.

STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION AND POSSIBLE
WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 3:07 AM CDTSevere Thunderstorm WarningTSAOsage53 min
May 14, 3:59 AM CDTSevere Thunderstorm WarningTSAOsage61 min
May 14, 4:45 AM CDTSevere Thunderstorm WarningTSANowata, Washington45 min
May 14, 5:25 AM CDTSevere Thunderstorm WarningTSARogers50 min
May 14, 5:33 AM CDTSevere Thunderstorm WarningTSAWagoner57 min
May 14, 5:44 AM CDTSevere Thunderstorm WarningTSAMayes46 min
May 14, 6:23 AM CDTSevere Thunderstorm WarningTSACherokee, Muskogee52 min
May 14, 7:26 AM CDTSevere Thunderstorm WarningTSAHaskell34 min
May 14, 8:00 AM CDTSevere Thunderstorm WarningTSAHaskell30 min
May 14, 5:22 PM CDTSevere Thunderstorm WarningTSAOkfuskee68 min
May 14, 5:47 PM CDTSevere Thunderstorm WarningTSAMcIntosh58 min
May 14, 6:44 PM CDTSevere Thunderstorm WarningTSAMcIntosh61 min
May 14, 6:53 PM CDTSevere Thunderstorm WarningTSAMuskogee67 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.