Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 310, NWS Tulsa, OK

October 8, 1993Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 8, 1993, 7:07 PM CDT for Okmulgee County, Oklahoma. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Oct 8, 1993, 7:07 PM CDT (00:07 UTC)
Expired
Oct 8, 1993, 8:01 PM CDT
In force
54 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Okmulgee County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.1 hours before the alert went out and 138 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 1993-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 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 1993-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
16 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1485 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 090008
SVRTUL
OKC101-111-090115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
707 PM CDT FRI OCT 8 1993
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONSS...
 
IN EAST CENTRAL OKLAHOMA
 
   ...WESTERN MUSKOGEE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...SOUTHERN OKMULGEE COUNTY
 
AT 707 PM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING
FROM 15 MILES WEST OF MUSKOGEE TO 5 MILES NORTHWEST OF HENRYETTA. LARGE
HAIL AND STRONG WINDS ARE LIKELY WITH THIS LINE OF STORMS. MOVEMENT WAS
TO THE EAST AT 25 MILES AN HOUR.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 7:07 PM CDTSevere Thunderstorm WarningTSAMuskogee68 min
Oct 8, 7:26 PM CDTSevere Thunderstorm WarningTSACherokee, Wagoner49 min
Oct 8, 7:26 PM CDTSevere Thunderstorm WarningTSAAdair49 min
Oct 8, 7:32 PM CDTTornado WarningTSACherokee43 min
Oct 8, 7:36 PM CDTSevere Thunderstorm WarningTSAMcIntosh54 min
Oct 8, 7:50 PM CDTSevere Thunderstorm WarningTSAMuskogee40 min
Oct 8, 8:11 PM CDTSevere Thunderstorm WarningTSAAdair34 min
Oct 8, 8:17 PM CDTSevere Thunderstorm WarningTSASequoyah58 min
Oct 8, 8:26 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee41 min
Oct 8, 8:26 PM CDTSevere Thunderstorm WarningTSAHaskell, Pittsburg49 min
Oct 8, 8:49 PM CDTSevere Thunderstorm WarningTSAAdair41 min
Oct 8, 9:01 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah59 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1993Every severe thunderstorm warning in 1993

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.