Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 349, NWS Tulsa, OK

August 25, 2001Rogers County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 25, 2001, 9:41 PM CDT for Rogers County, Wagoner County, Oklahoma. It was in force for 49 min. 4 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: Aug 25, 2001, 9:41 PM CDT (02:41 UTC)
Expired: Aug 25, 2001, 10:30 PM CDT
In force: 49 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Rogers County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 20 km from the middle of the area, began a volume at 02:44 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
Aug 25, 9:55 PM CDT	Thunderstorm Wind 70 E	Catoosa, OK	Thunderstorms winds estimated at 80 miles an hour severely damaged a few warehouses and blew over four empty train cars.
Aug 25, 10:10 PM CDT	Thunderstorm Wind 52 E	Inola, OK
Aug 25, 10:10 PM CDT	Hail 1	Inola, OK
Aug 25, 10:30 PM CDT	Hail 0.75	Muskogee, 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
Aug 25, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 2.7 hours before the alert went out and 181 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: 1818 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 2127 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 95 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.

431 
WUUS54 KTSA 260242
SVRTUL
OKC101-131-145-260330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
941 PM CDT SAT AUG 25 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA
  SOUTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1030 PM CDT

* AT 941 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 6 MILES NORTHWEST OF CATOOSA TO 8 MILES
  NORTHWEST OF ONETA TO STONEBLUFF TO 11 MILES SOUTHWEST OF
  HASKELL...MOVING EAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...HASKELL...
  TAFT...ONETA...COWETA...STONEBLUFF...OKAY...PORTER...TULLAHASSEE...
  WAGONER...TIAWAH...VERDIGRIS...CATOOSA AND INOLA.

HAIL TO THE SIZE OF NICKLES AND WIND GUSTS TO 65 MPH CAN BE EXPECTED 
IN THE WARNED AREA.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3629 9583 3608 9577 3590 9578 3568 9571
          3563 9543 3585 9530 3604 9541 3626 9545

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 Aug 25, 8:45 PM CDT, 56 minutes earlier.

Area forecast discussion, Aug 25, 8:45 PM CDT, 56 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
845 PM CDT SAT AUG 25 2001

UPDATED ZONES TO WORD PCP AS SCT NEAR FRONT. CONVECTION DECIDED TO
GET GOING ALONG THE BOUNDARY AFTER SUNSET AND EXTENDS FROM SW MO/NW
CORNER OF ARKANSAS TO BIG COMPLEX NEAR OKC. SVR THREAT IS EXPECTED TO
DECREASE DURING THE NEXT FEW HOURS...BUT PCP MAY BECOME MORE
WIDESPREAD. WILL HAVE TO MONITOR AND MAY NEED TO UPDATE LATER TO
RAISE POPS IN THE SOUTH. /13

.TSA...
AR...NONE.
OK...NONE.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 25, 7:49 PM CDT	Severe Thunderstorm Warning	TSA	Creek	41 min
Aug 25, 7:56 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	49 min
Aug 25, 8:06 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	54 min
Aug 25, 8:20 PM CDT	Severe Thunderstorm Warning	TSA	Creek	40 min
Aug 25, 9:03 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	57 min
Aug 25, 9:25 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	50 min
Aug 25, 9:35 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	40 min
Aug 25, 9:41 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	49 min
Aug 25, 9:58 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	62 min
Aug 25, 10:16 PM CDT	Severe Thunderstorm Warning	TSA	Mayes	59 min
Aug 25, 10:30 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee	45 min
Aug 25, 11:27 PM CDT	Severe Thunderstorm Warning	TSA	Adair	48 min
Aug 25, 11:31 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	44 min
Aug 25, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	52 min
Aug 26, 5:14 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	61 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2001 Every severe thunderstorm warning in 2001

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.