Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 231, NWS Tulsa, OK
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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 12:25 AM CDT | Hail 1 | Okmulgee, 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 25, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 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.
- 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
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
DRMSpecial 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 CREEKThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:15 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 60 min |
| May 24, 7:40 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Ottawa | 65 min |
| May 24, 7:51 PM CDT | Tornado Warning | TSA | Craig, Delaware | 64 min |
| May 24, 8:38 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 37 min |
| May 24, 8:40 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 35 min |
| May 24, 8:52 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Delaware | 53 min |
| May 24, 9:04 PM CDT | Tornado Warning | TSA | Mayes | 26 min |
| May 24, 9:44 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 46 min |
| May 24, 9:49 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 56 min |
| May 24, 10:36 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 54 min |
| May 24, 10:41 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 49 min |
| May 24, 10:51 PM CDT | Tornado Warning | TSA | Creek | 24 min |
| May 24, 10:53 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 52 min |
| May 24, 11:00 PM CDT | Tornado Warning | TSA | Okfuskee | 45 min |
| May 24, 11:01 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 59 min |
| May 24, 11:14 PM CDT | Tornado Warning | TSA | Creek | 31 min |
| May 24, 11:29 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 46 min |
| May 24, 11:33 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Washington | 42 min |
| May 24, 11:33 PM CDT | Tornado Warning | TSA | Okfuskee | 42 min |
| May 25, 12:48 AM CDT | Flash Flood Warning | TSA | Creek, Okfuskee, Okmulgee | 2 hr |
| May 25, 1:53 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 52 min |
| May 25, 2:08 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Sequoyah | 52 min |
| May 25, 2:31 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 59 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.