Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 283, NWS Tulsa, OK

June 29, 2001Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 29, 2001, 3:22 AM CDT for Wagoner County, Oklahoma. It was in force for 53 min. 2 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: Jun 29, 2001, 3:22 AM CDT (08:22 UTC)
Expired: Jun 29, 2001, 4:15 AM CDT
In force: 53 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wagoner County, OK

The radar

The Tulsa radar (KINX), 17 km from the middle of the area, began a volume at 08:22 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
Jun 29, 4:06 AM CDT	Hail 1	Coweta, OK
Jun 29, 4:17 AM CDT	Hail 1	Coweta, 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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.4 hours before the alert went out and 183 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: 453 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1304 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -70 m²/s²
0-3 km storm-relative helicity: -13 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 290823
SVRTUL

OKC145-290915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
322 AM CDT FRI JUN 29 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 415 AM CDT

* AT 322 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8
  MILES EAST OF ONETA...MOVING SOUTHEAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ONETA...
  TULLAHASSEE AND WAGONER.

HAIL TO THE SIZE OF NICKELS CAN BE EXPECTED IN THE WARNED AREA.

LAT...LON 3614 9561 3602 9573 3580 9544 3603 9527

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 Jun 28, 9:30 PM CDT, 5 hours 52 minutes earlier.

Area forecast discussion, Jun 28, 9:30 PM CDT, 5 hours 52 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
930 PM CDT THU JUN 28 2001

CONVECTION OVER SE OK THIS EVENING APPEARS TO BE DIURNALLY BASED AND
HAS BEEN GRADUALLY WEAKENING OVER THE PAST HOUR.
HOWEVER...LOW-LEVEL JET IS STARTING TO KICK IN OVER WRN/CNTRL OK
(AREA PROFILERS SHOWING 20-25KT SWLY 850-875 MB WINDS)...AND HAVE
NOTED AN INCREASE IS ELEVATED CONVECTION OVER CNTRL OK.  00Z MESOETA
SHOWS SOME IMPRESSIVE UPGLIDE ALONG 305K SURFACE OVER ERN OK AFTER
MIDNIGHT...AND SUGGESTS THAT CONVECTION WILL DEVELOP FARTHER E INTO
ENTRL/SE OK LATER TONIGHT.  A GENERAL SWD MOVEMENT IS
EXPECTED...WHICH WILL RESULT IN SOME TRAINING AND LOCALLY HEAVY
RAINFALL.  WILL INCLUDE MENTION OF POSSIBLE HEAVY RAIN FOR SE OK.

WILL LEAVE HIGHEST POPS ACROSS SE OK...AND PLAN ON TRIMMING BACK POPS
ACROSS FAR NE OK AND NW AR.

UPDATE WILL BE OUT AROUND 945 PM.

FCSTID = 18

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

In the hours before

Local storm report, Jun 28, 11:15 PM CDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1115 PM CDT THU JUN 28 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

11304 PM    TULSA                     OK    .75 INCH HAIL
06/28/01   TULSA                           REPORTED BY OFF DUTY
                                           NWS EMPLOYEE

Local storm report, Jun 29, 12:48 AM CDT, 2 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1248 AM CDT FRI JUN 29 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1158 PM    TULSA                     OK    1 INCH HAIL
06/28/01   TULSA                           81ST AND HARVARD. PRTD
                                           BY HAM RADIO SPOTTER.

1200 AM    TULSA                     OK    1.25 INCH HAIL
06/29/01   TULSA                           RPTD AT 71ST AND
                                           HARVARD BY HAM RADIO
                                           SPOTTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 10:54 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	51 min
Jun 28, 11:15 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	45 min
Jun 28, 11:47 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	43 min
Jun 29, 12:49 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	41 min
Jun 29, 1:27 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes	63 min
Jun 29, 1:58 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	62 min
Jun 29, 3:00 AM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	45 min
Jun 29, 3:47 AM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	58 min
Jun 29, 4:15 AM CDT	Flash Flood Warning	TSA	Pushmataha	3 hr
Jun 29, 4:15 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Wagoner	60 min
Jun 29, 4:30 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	45 min
Jun 29, 4:44 AM CDT	Flash Flood Warning	TSA	Rogers, Wagoner	3 hr
Jun 29, 6:12 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	48 min
Jun 29, 7:38 AM CDT	Flash Flood Warning	TSA	Rogers, Wagoner	112 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.