Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 326, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Nov 1, 2000, 12:41 PM CST for Creek County, Oklahoma. It was in force for 49 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
- Nov 1, 2000, 12:41 PM CST (18:41 UTC)
- Expired
- Nov 1, 2000, 1:30 PM CST
- In force
- 49 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Creek County, OK
The radar
The Tulsa radar (KINX), 78 km from the middle of the area, began a volume at 18:44 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 |
|---|---|---|---|
| Nov 1, 12:45 PM CST | Thunderstorm Wind | Bristow, OK | Thunderstorm winds blew a barn down. |
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 nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 6.7 hours before the alert went out and 120 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
- 396 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 700 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 335 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 011843 SVRTUL OKC037-011930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1241 PM CST WED NOV 1 2000 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CREEK COUNTY IN NORTHEAST OKLAHOMA * UNTIL 130 PM CST * AT 1241 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF BRISTOW...MOVING NORTHEAST AT 35 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...SAPULPA... KELLYVILLE...KIEFER...DEPEW...SLICK AND BRISTOW. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. LAT...LON 3579 9657 3566 9641 3596 9598 3614 9619
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 Nov 1, 10:50 AM CST, 1 hour 51 minutes earlier.
Area forecast discussion, Nov 1, 10:50 AM CST, 1 hour 51 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1050 AM CST WED NOV 1 2000 PAC FRONT MOVING INTO CENTRAL SECTIONS OF OKLAHOMA AS OF LATE THIS MORNING WITH SHOWERS AND THUNDERSTORMS OUT AHEAD OF THE BOUNDARY. AREAL MOVEMENT CONTINUES TO BE WEST TO EAST...WHILE INDIVIDUAL CELLS MOVE NORTHEAST. ELEMENTS OF CURRENT FORECAST ARE IN LINE WITH CURRENT TRENDS...SO NO UPDATE IS PLANNED FOR NOW. ONE CONCERN FOR SECOND PERIOD IS RAIN CHANCES IN THE WEST. LOWER DEWPOINT AIR ALREADY ENTERING CENTRAL SECTION OS OK MAY INFILTRATE WRN ZONES BY TONIGHT...SO LIKELY POPS MAY NEED TO BE SCALED BACK. HAVE NOT HAD A CHANCE TO LOOKS AT NEW MODEL GUIDANCE SO WILL LEAVE LATER PERIODS AS THE ARE FOR NOW. FCSTID = 23 .TUL... AR...NONE. OK...NONE.
In the hours before
Special weather statement, Nov 1, 12:05 PM CST, 36 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-021100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TULSA OK 105 PM CST WED NOV 1 2000 ...ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EASTERN OKLAHOMA THROUGH EARLY EVENING... .SYNOPSIS... A STRONG UPPER LEVEL TROUGH OF LOW PRESSURE IN THE LEE OF THE ROCKIES EARLY THIS AFTERNOON WILL MOVE INTO THE UPPER MISSISSIPPI VALLEY OVERNIGHT. A WEAK PACIFIC COLD FRONT ACROSS CENTRAL OKLAHOMA WILL MOVE INTO WESTERN ARKANSAS BY THURSDAY MORNING. .PRIMARY HAZARD... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS MOST OF EASTERN OKLAHOMA THROUGH THROUGH EARLY EVENING. THE PRIMARY THREAT FROM THE THUNDERSTORMS WILL BE DAMAGING WINDS...AND POSSIBLY LARGE HAIL. .DISCUSSION... A BAND OF THUNDERSTORMS HAS FORMED EARLY THIS AFTERNOON OVER CENTRAL OKLAHOMA...ALONG AND JUST AHEAD OF A WEAK COLD FRONT. THE AIRMASS AHEAD OF THE COLD FRONT WILL BECOME INCREASINGLY UNSTABLE THIS AFTERNOON WITH CAPE VALUES BETWEEN 1000 AND 1500 J/KG. GIVEN THE VERY FAST NORTHEAST MOVEMENT OF INDIVIDUAL THUNDERSTORMS AND SUFFICIENT DIRECTIONAL WIND SHEAR...THE PRIMARY SEVERE WEATHER THREAT WILL BE LOCALLY DAMAGING WINDS AND LARGE HAIL. THIS ACTIVITY IS EXPECTED TO WEAKEN AS IT APPROACHES NORTHWEST ARKANSAS TOWARD SUNSET. .SPOTTER ACTIVATION... SPOTTER ACTIVATION MAY BE REQUIRED ACROSS EASTERN OKLAHOMA THIS AFTERNOON. EMERGENCY MANAGEMENT OFFICIALS SHOULD MONITOR THE LASTEST WEATHER CONDITIONS FOR THE LATEST INFORMATION.
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.