Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 276, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 12, 2000, 11:26 PM CDT for Creek County, Oklahoma. It was in force for 64 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
- Jul 12, 2000, 11:26 PM CDT (04:26 UTC)
- Expired
- Jul 13, 2000, 12:30 AM CDT
- In force
- 64 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), 92 km from the middle of the area, began a volume at 04:28 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 |
|---|---|---|---|
| Jul 12, 11:40 PM CDT | Thunderstorm Wind | Drumright, OK | Thunderstorm winds blew down several trees and power lines. |
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
Lamont, OK (KLMN), launched 00:00Z, 4.4 hours before the alert went out and 112 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
- 711 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 2570 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
109 WUUS54 KTSA 130426 SVRTUL OKC037-130530- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1126 PM CDT WED JUL 12 2000 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN CREEK COUNTY IN NORTHEAST OKLAHOMA * UNTIL 1230 AM CDT * AT 1126 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 2 MILES NORTH OF DRUMRIGHT...MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OILTON... DRUMRIGHT...SHAMROCK...DEPEW...SLICK AND BRISTOW. 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 3615 9660 3602 9675 3567 9655 3577 9624
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, 11:10 PM CDT, 16 minutes earlier.
Area forecast discussion, Jul 12, 11:10 PM CDT, 16 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1110 PM CDT WED JUL 12 2000 PESKY INSTABILITY/OUTFLOW DRIVEN STORMS HAVE FINALLY WEAKENED OVER THE PAST 30-60 MINUTES. HAD SCATTERED REPORTS OF 60 MPH WINDS AND SMALL HAIL...MAINLY OVER NRN TULSA COUNTY...AS THE ELEVATED CORES DESCENDED. ACTIVITY WILL CONTINUE TO WEAKEN...BUT IT SHOULD PERSIST PAST MIDNIGHT...SO NEED TO ADJUST POPS. TSRA OUTFLOW HAS MADE A MESS OF THE SURFACE WINDS...AND WILL TWEAK WINDS SOME PER CURRENT MESONET OBS. WILL HAVE UPDATE ZONES OUT BY 1120 PM. FCSTID = 18 .TUL... AR...NONE. OK...NONE.
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, 8:39 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 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 |
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.