Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 151, NWS Tulsa, OK

June 10, 1989Washington County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 10, 1989, 8:03 PM CDT for Washington County, Oklahoma. It was in force for 57 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
Jun 10, 1989, 8:03 PM CDT (01:03 UTC)
Expired
Jun 10, 1989, 9:00 PM CDT
In force
57 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Washington 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
Jun 10, 8:15 PM CDTHail 1.75Washington, OK
Jun 10, 8:29 PM CDTTornado F1Washington, 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

Springfield, MO (KUMN), launched 00:00Z, 1.1 hours before the alert went out and 188 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 1989-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 349 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 1989-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
349 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
918 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 110108 COR
SVRTUL
OKC147-110200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED     ...CORRECTION...
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
803 PM CDT  JUN 10 1989

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...

IN NORTHEAST OKLAHOMA
          ...NORTHERN WASHINGTON

AT 8 03 PM THE TULSA WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 10
MILES NNW OF COPAN MOVING TO THE EAST SOUTHEAST AT 10 MPH. PERSONS
IN THE TOWN OF COPAN SHOULD SEEK SHELTER IMMEDIATELY.


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, Jun 10, 2:51 PM CDT, 5 hours 12 minutes before
UPDATED OKLAHOMA THUNDERSTORM OUTLOOK FOR NORTHEAST OKLAHOMA
NATIONAL WEATHER SERVICE TULSA, OK
249 PM CDT SAT JUN 10 1989

THIS IS AN UPDATED OKLAHOMA THUNDERSTORM OUTLOOK FOR NORTHEAST OKLAHOMA.
THIS OUTLOOK IS VALID FOR THAT PART OF OKLAHOMA EAST AND NORTH OF A LINE
FROM PONCA CITY TO THE SOUTHWEST CORNER OF PITTSBURG COUNTY TO THE
ARKANSAS STATE LINE EAST OF PAGE. FOR OTHER AREAS IN OKLAHOMA...REFER
TO THE OKLAHOMA THUNDERSTORM OUTLOOK ISSUED AT NOON.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS EASTERN OKLAHOMA
THIS AFTERNOON AND EARLY THIS EVENING.

AT MID AFTERNOON SURFACE HEATING CONTINUES TO DESTABILIZE THE ATMOSPHERE
ACROSS EASTERN OKLAHOMA. SEVERAL OUTFLOW BOUNDARIES WERE EVIDENT ACROSS
NORTHEASTERN OKLAHOMA AND THUNDERSTORMS CONTINUE TO DEVELOPE NEAR THESE
BOUNDARIES. A FEW THUNDERSTORMS HAVE ALREADY REACHED SEVERE LIMITS ACROSS
CENTRAL SECTIONS OF THE STATE.

THE LATEST MOISTURE CONVERGENCE ANALYSIS INDICATES THE BEST AREA FOR
THUNDERSTORM DEVELOPMENT IS BETWEEN OKLAHOMA CITY AND PONCA CITY. AS
THESE THUNDERSTORMS MOVE INTO EASTERN OKLAHOMA A FEW COULD BECOME
SEVERE. THE POTENTIAL TYPE SEVERE WEATHER WOULD BE LARGE HAIL AND
VERY HEAVY RAIN.

THUNDERSTORMS WILL BECOME MORE ACTIVE  DURING THE NEXT TWO HOURS.
SPOTTER GROUPS SHOULD BE PREPARED FOR ACTIVATION..ESPECIALLY ACROSS
NORTHEASTERN OKLAHOMA.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 7:49 PM CDTSevere Thunderstorm WarningTSAOsage56 min
Jun 10, 8:24 PM CDTSevere Thunderstorm WarningTSAWashington51 min
Jun 10, 9:42 PM CDTFlash Flood WarningTSAWashington63 min
Jun 10, 10:21 PM CDTSevere Thunderstorm WarningTSANowata54 min
Jun 10, 10:24 PM CDTFlash Flood WarningTSANowata66 min
Jun 10, 10:35 PM CDTSevere Thunderstorm WarningTSACraig55 min
Jun 10, 10:44 PM CDTFlash Flood WarningTSAWashington4 hr
Jun 10, 11:11 PM CDTFlash Flood WarningTSANowata4 hr
Jun 11, 2:46 AM CDTFlash Flood WarningTSANowata, Washington4 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1989Every severe thunderstorm warning in 1989

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.