Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 39, NWS Tulsa, OK

March 22, 1991Latimer County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 22, 1991, 7:35 AM CST for Latimer County, Oklahoma. It was in force for 40 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
Mar 22, 1991, 7:35 AM CST (13:35 UTC)
Expired
Mar 22, 1991, 8:15 AM CST
In force
40 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Latimer County, OK

What was reported inside it

TimeReportWhereRemark
Mar 22, 7:45 AM CSTHail 0.88Latimer, 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 12:00Z, 1.6 hours before the alert went out and 199 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 12:00Z on 1991-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1991-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -255 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2453 m above ground
0-6 km bulk shear
112 kt
0-1 km storm-relative helicity
-255 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 221333
SVRTUL
OKC077-221415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
735 AM CST FRI MAR 22 1991
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN SOUTHEAST OKLAHOMA
 
   ...LATIMER COUNTY
 
AT 730 AM RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES SOUTH
SOUTHWEST OF WILBURTON...APPROACHING THE LATIMER COUNTY LINE. THIS
STORM HAS PRODUCED WIND DAMAGE IN PUSHMATAHA COUNTY...AND WILL LIKELY
BE ACCOMPANIED BY LARGE HAIL AND INTENSE LIGHTNING.
 
THE STORM IS MOVING NORTHEAST AT 55 MILES AN HOUR AND WILL MOVE
THROUGH THE TOWN OF RED OAK BYH 8 AM.
 
IF YOU ARE IN LATIMER COUNTY...TAKE COVER NOW NEAR THE CENTER OF A
STRONG BUILDING AND STAY THERE UNTIL THE STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 6:57 PM CSTSevere Thunderstorm WarningTSAHaskell, Muskogee48 min
Mar 21, 7:07 PM CSTTornado WarningTSALeFlore68 min
Mar 21, 7:09 PM CSTTornado WarningTSAHaskell36 min
Mar 21, 7:33 PM CSTSevere Thunderstorm WarningTSALeFlore, Sequoyah57 min
Mar 21, 7:44 PM CSTSevere Thunderstorm WarningTSALeFlore61 min
Mar 21, 8:45 PM CSTSevere Thunderstorm WarningTSALeFlore60 min
Mar 21, 11:36 PM CSTSevere Thunderstorm WarningTSAPittsburg54 min
Mar 22, 12:20 AM CSTSevere Thunderstorm WarningTSASequoyah55 min
Mar 22, 1:12 AM CSTSevere Thunderstorm WarningTSALeFlore63 min
Mar 22, 1:28 AM CSTSevere Thunderstorm WarningTSASequoyah32 min
Mar 22, 3:23 AM CSTSevere Thunderstorm WarningTSAPittsburg52 min
Mar 22, 7:57 AM CSTSevere Thunderstorm WarningTSAHaskell48 min
Mar 22, 8:12 AM CSTSevere Thunderstorm WarningTSALeFlore56 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1991Every severe thunderstorm warning in 1991

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.