Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 273, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 12, 2000, 8:39 PM CDT for Mayes County, Oklahoma. It was in force for 51 min. No storm report in the archive falls 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.
The facts
- Issued
- Jul 12, 2000, 8:39 PM CDT (01:39 UTC)
- Expired
- Jul 12, 2000, 9:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Mayes County, OK
The radar
The Tulsa radar (KINX), 38 km from the middle of the area, began a volume at 01:43 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.7 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
- 3481 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1013 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 130140 SVRTUL OKC097-130230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 839 PM CDT WED JUL 12 2000 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MAYES COUNTY IN NORTHEAST OKLAHOMA * UNTIL 930 PM CDT * AT 839 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF ADAIR...MOVING SOUTH AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ADAIR...SALINA AND PRYOR. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 65 MPH CAN BE EXPECTED IN THE WARNED AREA. CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. LAT...LON 3659 9522 3656 9544 3619 9541 3623 9510
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 Jul 12, 7:05 PM CDT, 1 hour 34 minutes earlier.
Area forecast discussion, Jul 12, 7:05 PM CDT, 1 hour 34 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 705 PM CDT WED JUL 12 2000 NEED TO SEND OUT A QUICK UPDATE TO ADD POPS FARTHER S INTO NE AND FAR NW AR. OUTFLOW FROM SE KS TSRA HAS PUSHED INTO THE FAR NRN AREAS OF OUR KS BORDERING COUNTIES...WITH ISOLD-WDLY SCT NEW CONVECTION FIRING ALONG THIS BOUNDARY. WEAK STEERING FLOW IS N-NW...SO THIS ACTIVITY SHOULD PUSH A BIT FARTHER S AND SE. EX>PECT CONVECTION TO WEAKEN BY 10PM AS INSTABILITY DECREASES WITH LOSS OF HEATING. UPDATED ZONES OUT SHORTLY. FCSTID = 18 .TUL... AR...NONE. OK...NONE.
In the hours before
Special weather statement, Jul 12, 3:00 PM CDT, 5 hours 39 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-141100- EASTERN OKLAHOMA AND NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE JUL 12 2000 ...ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS EVENING ACROSS FAR SOUTHEAST OKLAHOMA... .SYNOPSIS... AN EAST-WEST BOUNDARY ACROSS SOUTHEAST OKLAHOMA INTO SOUTHERN ARKANSAS WILL DRIFT SOUTHWARD THROUGH TONIGHT. .PRIMARY HAZARD... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON ACROSS PARTS OF FAR SOUTHEAST OKLAHOMA. THE PRIMARY THREAT WILL BE DAMAGING WIND GUSTS TO 65 MPH. HOWEVER...THE POSSIBILITY OF HAIL AS LARGE AS A DIME CANNOT BE RULED OUT. .DISCUSSION... STRONG HEATING COMBINED WITH SURFACE DEWPOINTS IN THE MID 70S HAVE PRODUCED STRONG INSTABILITY ACROSS SOUTHEAST OKLAHOMA THIS AFTERNOON. SURFACE BASED CAPES ARE IN THE EXCESS OF 4000 J/KG. STEEP LOW AND MID LEVEL LAPSE RATES WILL ENHANCE THE THREAT FOR DAMAGING WINDS ACROSS FAR SOUTHEAST OKLAHOMA THROUGH 9 PM THIS EVENING. HOWEVER...WINDS ALOFT ARE WEAK AND DO NOT SUPPORT SUSTAINED SEVERE WEATHER. THE WEAK WINDS WILL LIKELY MEAN THAT THE STORMS WHICH DEVELOP ARE LIKELY TO COLLAPSE ONTO THE UPDRAFT. NEVERTHELESS...THE QUICK COLLAPSE OF A STRONG THUNDERSTORM MAY PRODUCE A DAMAGING WIND GUST. .OTHER HAZARDS... HEAT INDICES WILL BE IN THE 105 TO 110 DEGREE RANGE THIS AFTERNOON. PEOPLE SHOULD TAKE PRECAUTIONS TO PROTECT THEMSELVES FROM EXCESSIVE HEAT. .EMERGENCY AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IN PUSHMATAHA AND CHOCTAW COUNTIES MAY BE REQUIRED THIS AFTERNOON OR THIS EVENING. THE ACTIVITY SHOULD DIMINISH RAPIDLY AFTER DARK.
Special weather statement, Jul 12, 3:30 PM CDT, 5 hours 9 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-131100- EASTERN OKLAHOMA AND NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 330 PM CDT TUE JUL 12 2000 ...ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS EVENING ACROSS FAR NORTHEAST OKLAHOMA... .SYNOPSIS... AN EAST-WEST BOUNDARY ACROSS SOUTH CENTRAL AND EAST CENTRAL KANSAS WILL DRIFT SOUTHWARD THROUGH TONIGHT. .PRIMARY HAZARD... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON ACROSS PARTS OF SOUTH CENTRAL AND EAST CENTRAL KANSAS. THE STORMS MAY DRIFT AS FAR SOUTH AS FAR NORTHEAST OKLAHOMA THIS EVENING BEFORE WEAKENING. THE PRIMARY THREAT WILL BE DAMAGING WIND GUSTS TO 60 MPH. .DISCUSSION... STRONG HEATING COMBINED WITH SURFACE DEWPOINTS IN THE LOWER 70S HAVE PRODUCED STRONG INSTABILITY ACROSS ALL OF THE AREA THIS AFTERNOON. SURFACE BASED CAPES ARE IN THE RANGE OF 4000-5000 J/KG. STEEP LOW AND MID LEVEL LAPSE RATES WILL ENHANCE THE THREAT FOR DAMAGING WINDS ACROSS FAR NORTHEAST OKLAHOMA BETWEEN 600 PM AND 9 PM THIS EVENING. HOWEVER...WINDS ALOFT ARE WEAK AND DO NOT SUPPORT SUSTAINED SEVERE WEATHER. MOST OF THE STORMS WILL PULSE DOWN ALMOST AS QUICKLY AS THEY DEVELOP. HOWEVER...THE QUICK COLLAPSE OF THE STORMS MAY PRODUCE A DAMAGING WIND GUST. .OTHER HAZARDS... HEAT INDICES WILL BE IN THE 105 TO 110 DEGREE RANGE THIS AFTERNOON. PLEASE REFER TO THE SHORT TERM FORECAST /OKCNOWTUL/ FOR FURTHER DETAILS ON THIS AFTERNOON/S EXCESSIVE HEAT. .EMERGENCY AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION MAY BE REQUIRED ACROSS FAR NORTHEAST OKLAHOMA GENERALLY IN THE COUNTIES BORDERING KANSAS AFTER 500 PM.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:10 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 50 min |
| Jul 12, 8:09 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 51 min |
| Jul 12, 9:14 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa | 46 min |
| Jul 12, 10:00 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa, Wagoner | 60 min |
| Jul 12, 11:26 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.