Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 275, NWS Tulsa, OK

July 12, 2000Rogers County, Tulsa County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 12, 2000, 10:00 PM CDT for Rogers County, Tulsa County, Wagoner County, Oklahoma. It was in force for 60 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, 10:00 PM CDT (03:00 UTC)
Expired: Jul 12, 2000, 11:00 PM CDT
In force: 60 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Rogers County, OK, Tulsa County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 21 km from the middle of the area, began a volume at 03:03 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

Lamont, OK (KLMN), launched 00:00Z, 3.0 hours before the alert went out and 161 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KTSA 130301
SVRTUL
OKC131-143-145-130400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1000 PM CDT WED JUL 12 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  TULSA COUNTY IN NORTHEAST OKLAHOMA
  WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1100 PM CDT

* AT 1000 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST
  OF TULSA TO 2 MILES SOUTH OF CATOOSA TO 2 MILES SOUTH OF TIAWAH...
  MOVING SOUTH AT 15 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...ONETA...
  COWETA...BROKEN ARROW...GLENPOOL...JENKS...BIXBY...TULSA...
  TIAWAH...VERDIGRIS...CATOOSA AND INOLA.

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 3627 9602 3623 9578 3629 9553 3596 9543
          3591 9573 3591 9603

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, 2 hours 55 minutes earlier.

Area forecast discussion, Jul 12, 7:05 PM CDT, 2 hours 55 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.

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, 11:26 PM CDT	Severe Thunderstorm Warning	TSA	Creek	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000 Every 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.