Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 255, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 26, 2000, 11:53 PM CDT for Okfuskee County, Oklahoma. It was in force for 52 min. 2 reports 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 26, 2000, 11:53 PM CDT (04:53 UTC)
- Expired
- May 27, 2000, 12:45 AM CDT
- In force
- 52 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Okfuskee County, OK
The radar
The Norman radar (KTLX), 89 km from the middle of the area, began a volume at 04:40 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 27, 12:00 AM CDT | Thunderstorm Wind | Pharoah, OK | Thunderstorm winds blew down large tree limbs. |
| May 27, 12:00 AM CDT | Hail 0.88 | Pharoah, 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 26, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.9 hours before the alert went out and 102 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
- 4172 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 991 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 11.7
The text
As transmitted, in the capitals the NWS used until 2016.
548 WUUS54 KTSA 270454 SVRTUL OKC107-270545- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1153 PM CDT FRI MAY 26 2000 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 1245 AM CDT * AT 1153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHEAST OF BEARDEN...MOVING EAST AT 40 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OKFUSKEE...CASTLE...PHAROAH...CLEARVIEW...BEARDEN...WELEETK AND OKEMAH. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. LAT...LON 3547 9645 3530 9643 3531 9599 3562 9620
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 26, 9:26 PM CDT, 2 hours 27 minutes earlier.
Area forecast discussion, May 26, 9:26 PM CDT, 2 hours 27 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 926 PM CDT FRI MAY 26 2000 BUSY NIGHT AHEAD AS WIDESPREAD CONVECTION EXPECTED TO AFFECT A LARGE PART OF FORECAST AREA OVERNIGHT. ONE CLUSTER OF STORMS WAS CURRENTLY AFFECTING NORTHWEST CORNER OF ARKANSAS...WITH OTHER STORMS TO THE WEST OF FORECAST AREA POISED TO MOVE EAST. EXTREME INSTABILITY (5000 J/KG ON 00Z OUN SOUNDING)...FAVORABLE LOW LEVEL WIND PROFILE...AND MODERATELY STRONG MID LEVEL FLOW WILL LEAD TO NUMEROUS CLUSTERS OF STRONG TO SEVERE STORMS TONIGHT. HAVE ALREADY SENT UPDATED ZONES TO RAISE POPS AND MENTION HEAVY RAINS IN SOME OF THE ZONES. HIGHEST POTENTIAL FOR HEAVY RAINS APPEARS TO BE ACROSS SOUTHERN PART OF FORECAST AREA WHERE DEVELOPING MCC IN CENTRAL OKLAHOMA WILL TRACK LATER TONIGHT. DID NOT MAKE ANY CHANGES TO LATER PERIODS OF FORECAST. FCSTID = 9 .TUL... AR...TORNADO WATCH UNTIL 100 AM CDT SATURDAY FOR ZONES OKZ054>055...OKZ059>060...OKZ064>066...OKZ071...OKZ073. OK...TORNADO WATCH UNTIL 200 AM CDT SATURDAY FOR ZONES OKZ049... OKZ053.
In the hours before
Special weather statement, May 26, 7:30 PM CDT, 4 hours 23 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-271200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 730 PM CDT FRI MAY 26 2000 ...NUMEROUS SEVERE THUNDERSTORMS ARE EXPECTED ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS EVENING AND TONIGHT... ...TORNADO WATCH IN EFFECT UNTIL 100 AM FOR PORTIONS OF EASTERN OKLAHOMA... .SYNOPSIS... A BROAD AREA OF SURFACE LOW PRESSURE WAS LOCATED IN THE TEXAS PANHANDLE AND FAR WESTERN KANSAS THIS EVENING WITH SOUTHERLY WINDS OUT AHEAD OF THE LOW ACROSS OKLAHOMA AND ARKANSAS. A FRONTAL BOUNDARY WAS ALSO LOCATED OVER SOUTHWEST OKLAHOMA...EXTENDING NORTHEAST THROUGH PONCA CITY. THE FRONT WILL SERVE AS A FOCUSING MECHANISM FOR SEVERE THUNDERSTORM DEVELOPMENT THIS EVENING AND TONIGHT AS AN UPPER LEVEL DISTURBANCE MOVES INTO CENTRAL OKLAHOMA. .PRIMARY HAZARD... SEVERE THUNDERSTORMS HAVE ALREADY DEVELOPED OVER EAST-CENTRAL OKLAHOMA AND NORTHWEST ARKANSAS. THIS ACTIVITY WILL CONTINUE THROUGH THE EARLY EVENING HOURS. SEVERE CONVECTION IN NORTH TEXAS AND SOUTHWEST OKLAHOMA HAS ALSO DEVELOPED. THUNDERSTORMS ARE FORECAST TO MOVE INTO EASTERN OKLAHOMA BY LATE EVENING...SPREADING INTO NORTHWEST ARKANSAS AROUND MIDNIGHT. GIVEN THE AMOUNT OF INSTABILITY AND FAVORABLE WIND PROFILES...LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN THREAT. HOWEVER...AN ISOLATED TORNADO WILL ALSO BE POSSIBLE. .DISCUSSION... ATMOSPHERE REMAINS MODERATELY UNSTABLE THIS EVENING ACROSS THE REGION WITH CAPE VALUES AROUND 3500 J/KG. AREA SOUNDINGS INDICATE VERY LITTLE CAP TO INHIBIT ADDITIONAL THUNDERSTORM DEVELOPMENT. SHEAR PROFILES REMAIN FAVORABLE FOR SUPERCELL STORMS THROUGH THE EVENING HOURS. CONVECTION WILL LIKELY BECOME MORE LINEAR IN NATURE AS IT MOVES INTO FAR SECTIONS OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS LATER TONIGHT. .SPOTTER ACTIVATION... SPOTTER ACTIVATION WILL BE REQUIRED ACROSS PORTIONS OF EASTERN OKLAHOMA THIS EVENING AND WILL LIKELY BE REQUIRED OVER NORTHWEST ARKANSAS LATER TONIGHT.
Local storm report, May 26, 7:36 PM CDT, 4 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
651 PM CDT FRI MAY 26 2000
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
71 0 PM 6 SE STILWELL OK .75 INCH HAIL
05/26/00 ADAIR FIRE DEPARTMENT REPORT
MANNINGLocal storm report, May 26, 7:41 PM CDT, 4 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TULSA OK
741 PM CDT FRI MAY 26 2000
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCAlTION....
710 PM 6 SE STILWELL OK .75 INCH HAIL
05/26/00 ADAIR FIRE DEPARTMENT REPORT
MANNINGLocal storm report, May 26, 11:29 PM CDT, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1129 PM CDT FRI MAY 26 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1048 PM 10 W EUFAULA OK .75 INCH HAIL
05/26/00 MCINTOSH SPOTTER REPORT
1050 PM HITCHITA OK 1 INCH HAIL
05/26/00 MCINTOSH PUBLIC REPORTThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 7:07 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 53 min |
| May 26, 10:13 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 47 min |
| May 26, 10:16 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 44 min |
| May 26, 10:53 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 52 min |
| May 26, 11:04 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 41 min |
| May 26, 11:05 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee | 40 min |
| May 26, 11:09 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 51 min |
| May 26, 11:18 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 42 min |
| May 26, 11:41 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 49 min |
| May 26, 11:44 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 46 min |
| May 27, 12:01 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 59 min |
| May 27, 12:12 AM CDT | Flash Flood Warning | TSA | Adair, Sequoyah | 4 hr |
| May 27, 12:13 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 62 min |
| May 27, 12:19 AM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 41 min |
| May 27, 12:33 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 42 min |
| May 27, 12:35 AM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 55 min |
| May 27, 12:36 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 39 min |
| May 27, 1:03 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 42 min |
| May 27, 1:19 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 41 min |
| May 27, 6:16 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 29 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.