Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 231, NWS Tulsa, OK

May 25, 2000Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 25, 2000, 12:16 AM CDT for Okmulgee County, Oklahoma. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
May 25, 2000, 12:16 AM CDT (05:16 UTC)
Expired
May 25, 2000, 1:00 AM CDT
In force
44 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Okmulgee County, OK

The radar

The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 05:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 25, 12:25 AM CDTHail 1Okmulgee, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 25, 12:00 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.3 hours before the alert went out and 142 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 2000-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4553 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2000-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
4553 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1645 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
1.2
Supercell composite
20.3

Open this sounding in Storm Lab

The text

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

280 
WUUS54 KTSA 250517
SVRTUL
OKC111-250600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1216 AM CDT THU MAY 25 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OKMULGEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 100 AM CDT

* AT 1216 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER OKMULGEE...MOVING EAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BALD HILL...
MORRIS AND OKMULGEE

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.

CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 3571 9603 3554 9602 3556 9575 3574 9579

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.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 24, 10:35 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 24, 10:35 PM CDT, 1 hour 41 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1035 PM CDT WED MAY 24 2000

NOT MUCH TIME FOR DISCUSSION...WITH TORNADO/SEVERE WATCHES OVER
NEARLY ALL OF FORECAST AREA THIS EVENING. FIRST CLUSTER OF SEVERE
STORMS WHICH MOVED ACROSS NORTHEAST CORNER OF OKLAHOMA AND INTO
NORTHWEST ARKANSAS HAS JUST ABOUT EXITED AREA...WHILE A SECOND CLUSTER
OF SEVERE STORMS WAS BEGINNING TO MOVE IN FROM THE WEST.

HAVE ALREADY SENT UPDATED ZONES TO INCREASE POPS AND WORD POSSIBLE
HEAVY RAIN IN MORE ZONES. BIGGEST THREAT OF HEAVY RAIN APPEARS TO BE
SETTING UP IN A 50 MILE WIDE ZONE EXTENDING FROM TULSA TO SILOAM
SPRINGS ARKANSAS...WHICH WAS NORTH OF PRIMARY SURFACE BOUNDARY.

THERE IS STILL SOME QUESTION AS TO HOW FAR SOUTH CONVECTION CAN DEVELOP
GIVEN STRONG CAPPING STILL PRESENT IN SOUTHEAST OKLAHOMA AND WEST
CENTRAL ARKANSAS. WILL KEEP POPS IN CHANCE CATEGORY IN THOSE ZONES.

NO CHANGES WERE MADE TO LATER PERIODS OF FORECAST.

FCSTID = 9

.TUL...
AR...NONE.
OK...NONE.

In the hours before

Special weather statement, May 24, 6:25 PM CDT, 5 hours 51 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-251200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
625 PM CDT WED MAY 24 2000

...A FEW SEVERE THUNDERSTORMS EXPECTED MAINLY NORTH OF AN EUFAULA TO
OZARK LINE LATER THIS EVENING AND TONIGHT...

.SYNOPSIS...
SURFACE LOW PRESSURE WAS LOCATED IN THE TEXAS PANHANDLE THIS
EVENING SOUTHEAST OF AMARILLO. A FRONTAL BOUNDARY EXTENDED
NORTHEAST FROM THE SURFACE LOW INTO NORTHWEST AND NORTH-CENTRAL
OKLAHOMA. THE FRONT WILL DRIFT SLOWLY SOUTHEAST TONIGHT AND BE THE
FOCUSING MECHANISM FOR SEVERE THUNDERSTORMS LATER EVENING THROUGH
THE OVERNIGHT HOURS ACROSS NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS.

.PRIMARY HAZARD...
A FEW SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP BETWEEN 700 AND
1000 PM OVER NORTHEAST OKLAHOMA. THE MAIN THREAT WITH THESE STORMS
WILL BE LARGE HAIL AND DAMAGING DOWNBURST WINDS. ISOLATED TORNADOES
WILL ALSO BE POSSIBLE. THE MAIN THREAT AREA WILL BE OVER
NORTHEASTERN OKLAHOMA...ALONG THE OKLAHOMA...KANSAS BORDER. FLASH
FLOODING MAY ALSO BECOME POSSIBLE ACROSS THIS AREA LATER TONIGHT.

.DISCUSSION...
THE COLD FRONT HAS BECOME QUASI-STATIONARY THIS EVENING ACROSS
NORTHWEST AND NORTH-CENTRAL OKLAHOMA.  MOISTURE CONVERGENCE
CONTINUES ALONG THE BOUNDARY WITH DEWPOINTS IN THE MID TO UPPER 70S.
THIS IN COMBINATION WITH DAYTIME HEATING HAS CREATED A VERY UNSTABLE
ATMOSPHERE WITH CAPE VALUES APPROACHING 5000 J/KG.  UPPER LEVEL
SPEED MAX IS FORECAST TO MOVE INTO NORTHWEST OKLAHOMA LATER THIS
EVENING WITH STRONG UPPER LEVEL DIVERGENCE FORECAST OVER NORTHEAST
OKLAHOMA BY MIDNIGHT. SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP
OVER NORTHEAST OKLAHOMA LATER THIS EVENING.

ALTHOUGH 0-6 KM SPEED SHEAR WILL BE MARGINAL...WITH THE HIGH
INSTABILITIES IN PLACE...ISOLATED SUPERCELLS WILL BE POSSIBLE ALONG
THE SOUTHERN EDGE OF THE THUNDERSTORM ACTIVITY...MAINLY BEFORE
MIDNIGHT.  FLOODING MAY ALSO BECOME A PROBLEM ALONG THE KANSAS...
OKLAHOMA BORDER LATER TONIGHT DUE TO THE SLOW PROGRESSION OF THE
OVERALL SYSTEM. THE THUNDERSTORM ACTIVITY IS FORECAST TO MOVE INTO
NORTHWEST ARKANSAS AFTER MIDNIGHT.

.EMERGENCY AGENCY AND SPOTTER ACTIVATION...
SPOTTER ACTIVATION WILL BE NECESSARY THIS EVENING.
Local storm report, May 24, 7:12 PM CDT, 5 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
712 PM CDT WED MAY 24 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

070k0 PM    14 W WELCH                OK    1 INCH HAIL
05/24/00   CRAIG                           PUBLIC REPORTED QUARTER
                                           SIZED HAIL IN HOLLOW.
Local storm report, May 24, 10:27 PM CDT, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1027 PM CDT WED MAY 24 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0730 PM    WANN                      OK    WIND DAMAGE
05/24/00   NOWATA                          NUMEROUS TREES BLOWN
                                           DOWN

0750 PM    4 ENE CHILDERS            OK    WIND DAMAGE
05/24/00   NOWATA                          TELEPHONE POLES DOWN
                                           AND LARGE TREE LIMBS DOWN

0800 PM    1 N BERNICE               OK    60 MPH TSTM GUST
05/24/00   DELAWARE                        SPOTTER RPT

0842 PM    8 W JAY                   OK    .75 INCH HAIL
05/24/00   DELAWARE                        DELAWARE CO SPOTTER RPT

0845 PM    MAYSVILLE                 AR    70 MPH TSTM GUST
05/24/00   BENTON                          NUMEROUS TREES
                                           DOWN...SPOTTER RPT

0850 PM    SILOAM SPGS               AR    WIND DAMAGE
05/24/00   BENTON                          NUMEROUS LARGE TREE
                                           LIMBS BLOWN
                                           DOWN...PUBLIC RPT

0858 PM    4 N GENTRY                AR    WIND DAMAGE
05/24/00   BENTON                          NUMEROUS TREES AND
                                           LARGE LIMBS BLOWN
                                           DOWN...SPRINGDALE PD

0905 PM    3 S SILOAM SPGS           AR    WIND DAMAGE
05/24/00   BENTON                          SEVERAL TREES BLOWN
                                           DOWN...PUBLIC RPT

0915 PM    COLCORD                   OK    WIND DAMAGE
05/24/00   DELAWARE                        NUMEROUS 5-6 INCH TREES
                                           BLOWN DOWN...WINDS
                                           GUSTS TO 65
                                           MPH...SPOTTER RPT

0919 PM    8 S ROGERS                AR    60 MPH TSTM GUST
05/24/00   BENTON                          PUBLIC REPORT AT BETHEL
                                           HTS

0920 PM    MOODYS                    OK    WIND DAMAGE
05/24/00   CHEROKEE                        NUMEROUS TREES BLOWN
                                           DOWN...CHEROKEE EOC RPT

0930 PM    3 ESE BEAVER              AR    60 MPH TSTM GUST
05/24/00   CARROLL                         PUBLIC RPT AT HOLIDAY
                                           ISLAND

0942 PM    FAYETTEVILLE              AR    WIND DAMAGE
05/24/00   WASHINGTON                      NUMEROUS 3-4 INCH TREE
                                           TREE LIMBS BROKEN

DRM
Special weather statement, May 24, 11:16 PM CDT, 1 hour before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-250701-

EASTERN OKLAHOMA AND NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1116 PM CDT WED MAY 24 2000

...UPDATE FOR SHORT TERM TRENDS...

AT 11PM AN OUTFLOW BOUNDARY EXTENDED FROM NEAR CHARLESTON AR TO
FORT SMITH TO SOUTHERN CREEK COUNTY.  THIS BOUNDARY WILL DRIFT
SLOWLY SOUTH DURING THE NEXT FEW HOURS AND BE THE FOCUS FOR
CONTINUED THUNDERSTORM DEVELOPMENT.  THE ATMOSPHERE SOUTH OF THE
BOUNDARY REMAINS CAPPED...HOWEVER ENOUGH LIFT WILL OCCUR ALONG AND
NORTH OF THE BOUNDARY TO PRODUCE A FEW SEVERE THUNDERSTORMS FOR
NEXT SEVERAL HOURS IN EASTERN OKLAHOMA.  THE ACTIVITY IS EXPECTED TO
DEVELOP INTO NORTHWEST ARKANSAS AFTER 2AM AND MAY STILL HAVE THE
POTENTIAL TO BE SEVERE.

WIND FIELDS WILL SUPPORT SUPERCELL STORMS NEAR THE BOUNDARY FOR THE
NEXT SEVERAL HOURS AND THERE IS THE POSSIBILTY OF AN ISOLATED
TORNADO.

SHORT TERM FORECASTS WILL DETAIL THE PROGRESS OF THE STORMS.
Local storm report, May 24, 11:24 PM CDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1124 PM CDT WED MAY 24 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1046 PM    MILFAY                    OK    1 INCH HAIL
05/24/00   CREEK

1115 PM    IRON POST                 OK    1.75 INCH HAIL
05/24/00   CREEK

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 7:15 PM CDTSevere Thunderstorm WarningTSANowata, Washington60 min
May 24, 7:40 PM CDTSevere Thunderstorm WarningTSACraig, Ottawa65 min
May 24, 7:51 PM CDTTornado WarningTSACraig, Delaware64 min
May 24, 8:38 PM CDTSevere Thunderstorm WarningTSACraig37 min
May 24, 8:40 PM CDTSevere Thunderstorm WarningTSAMayes35 min
May 24, 8:52 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware53 min
May 24, 9:04 PM CDTTornado WarningTSAMayes26 min
May 24, 9:44 PM CDTSevere Thunderstorm WarningTSAAdair46 min
May 24, 9:49 PM CDTSevere Thunderstorm WarningTSACreek56 min
May 24, 10:36 PM CDTSevere Thunderstorm WarningTSAOkmulgee54 min
May 24, 10:41 PM CDTSevere Thunderstorm WarningTSACreek49 min
May 24, 10:51 PM CDTTornado WarningTSACreek24 min
May 24, 10:53 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee52 min
May 24, 11:00 PM CDTTornado WarningTSAOkfuskee45 min
May 24, 11:01 PM CDTSevere Thunderstorm WarningTSAMuskogee59 min
May 24, 11:14 PM CDTTornado WarningTSACreek31 min
May 24, 11:29 PM CDTSevere Thunderstorm WarningTSAOkmulgee46 min
May 24, 11:33 PM CDTSevere Thunderstorm WarningTSARogers, Washington42 min
May 24, 11:33 PM CDTTornado WarningTSAOkfuskee42 min
May 25, 12:48 AM CDTFlash Flood WarningTSACreek, Okfuskee, Okmulgee2 hr
May 25, 1:53 AM CDTSevere Thunderstorm WarningTSASequoyah52 min
May 25, 2:08 AM CDTSevere Thunderstorm WarningTSAAdair, Sequoyah52 min
May 25, 2:31 AM CDTSevere Thunderstorm WarningTSALeFlore59 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.