Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 112, NWS Tulsa, OK

May 19, 1990Osage County, Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 19, 1990, 5:02 PM CDT for Osage County, Tulsa County, Oklahoma. It was in force for 58 min. 2 reports 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
May 19, 1990, 5:02 PM CDT (22:02 UTC)
Expired
May 19, 1990, 6:00 PM CDT
In force
58 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Osage County, OK, Tulsa County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 19, 5:10 PM CDTHail 0.75Osage, OK
May 19, 5:20 PM CDTHail 0.75Tulsa, 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, 10.0 hours before the alert went out and 170 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 1990-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2806 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 12:00Z on 1990-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 366 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
2806 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
366 m²/s²
0-3 km storm-relative helicity
529 m²/s²
Significant tornado parameter
4.9
Supercell composite
23.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 192203
SVRTUL
OKC113-143-192300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
502 PM CDT SAT MAY 19 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...SOUTHEASTERN OSAGE COUNTY...TULSA COUNTY
 
AT 5 PM CDT RADAR INDICATES SEVERE THUNDERSTORMS EXTENDING FROM SAND
SPRINGS TO SOUTHERN TULSA COUNTY MOVING EAST AT 10 MPH. NUMEROUS
REPORTS OF HAIL UP TO GOLF BALL SIZE HAVE BEEN REPORTED.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TOqRNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 19, 12:47 PM CDT, 4 hours 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA, OK
1244 PM CDT SAT MAY 19 1990

   ...THUNDERSTORMS ARE DEVELOPING RAPIDLY OVER EASTERN OKLAHOMA...

AN AREA OF THUNDERSTORMS IS DEVELOPING OVER EASTERN OKLAHOMA...AND
SOME OF THESE STORMS COULD BECOME SEVERE SHORTLY. THE AREA IS ABOUT
10 MILES WIDE AND EXTENDS ACROSS PORTIONS OF LAKE KEYSTONE NEAR NEW
PRUE NORTHWEST TO SKIATOOK.

THOSE PERSONS OUTDOORS...ESPECIALLY ANY BOATERS ON LAKES KEYSTONE AND
SKIATOOK NEED TO KEEP AN EYE ON THESE STORMS AND SHOULD MOVE TO A SAFE
PLACE IF THREATENING WEATHER APPROACHES.

THESE STORMS WILL BECOME MORE NUMEROUS LATER THIS AFTERNOON...AND WILL
LIKELY BE SEVERE IN SOME AREAS. CIVIL DEFENSE AND SPOTTER GROUPS MAY
WANT TO BEGIN MAKING PREPARATIONS FOR POSSIBLE ACTIVATION THIS AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION
FOR LATER STATEMENTS OR POSSIBLE WARNINGS.

                                                                     ]
Local storm report, May 19, 1:28 PM CDT, 3 hours 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
126 PM CDT SAT MAY 19 1990

...DELAYED REPORTS FROM EARLY THIS MORNING  MAY 19 1990...

TIME/CDT     COUNTY      EVENT

 245 AM      PITTSBURG   DIME SIZE HAIL 5 MILES SOUTHWEST OF
                         SAVANA.
Local storm report, May 19, 3:38 PM CDT, 1 hour 24 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
334 PM CDT SAT MAY 19 1990

TIME/CDT     COUNTY      EVENT

 220 PM      OSAGE       DIME SIZE HAIL 5 MILES NORTHEAST OF NEW PRUE.

 242 PM      OSAGE       QUARTER SIZE HAIL 5 MILES EAST OF NEW PRUE.

 305 PM      OSAGE       NICKEL SIZE HAIL 9 MILES NORTHWEST OF SAND
                         SPRINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 2:32 AM CDTSevere Thunderstorm WarningTSAPittsburg43 min
May 19, 1:26 PM CDTSevere Thunderstorm WarningTSAOsage64 min
May 19, 2:54 PM CDTSevere Thunderstorm WarningTSAOsage66 min
May 19, 3:59 PM CDTSevere Thunderstorm WarningTSAOsage61 min
May 19, 4:12 PM CDTSevere Thunderstorm WarningTSATulsa48 min
May 19, 4:16 PM CDTFlash Flood WarningTSAOsage3 hr
May 19, 4:24 PM CDTSevere Thunderstorm WarningTSADelaware, Mayes51 min
May 19, 4:30 PM CDTSevere Thunderstorm WarningTSACreek, Tulsa45 min
May 19, 5:16 PM CDTSevere Thunderstorm WarningTSAMayes59 min
May 19, 5:26 PM CDTSevere Thunderstorm WarningTSACreek64 min
May 19, 5:38 PM CDTSevere Thunderstorm WarningTSADelaware67 min
May 19, 5:46 PM CDTSevere Thunderstorm WarningTSAWagoner59 min
May 19, 6:28 PM CDTSevere Thunderstorm WarningTSAMuskogee, Okmulgee62 min
May 19, 6:34 PM CDTSevere Thunderstorm WarningTSAMayes56 min
May 19, 6:36 PM CDTSevere Thunderstorm WarningTSACreek54 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning in 1990

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.