Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 286, NWS Tulsa, OK

June 29, 2001Rogers County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 29, 2001, 4:30 AM CDT for Rogers County, Oklahoma. It was in force for 45 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: Jun 29, 2001, 4:30 AM CDT (09:30 UTC)
Expired: Jun 29, 2001, 5:15 AM CDT
In force: 45 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Rogers County, OK

The radar

The Tulsa radar (KINX), 3 km from the middle of the area, began a volume at 09:32 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, 9.5 hours before the alert went out and 174 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 290930
SVRTUL
OKC131-291015-

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 515 AM CDT

* AT 430 AM CDT...DOPPLER RADAR INDICATED A CLUSTER OF SEVERE 
THUNDERSTORMS OVER INOLA...DRIFTING SLOWLY SOUTH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...INOLA.

HAIL TO THE SIZE OF NICKELS...WIND GUSTS TO 60 MPH AND TORRENTIAL RAINFALL 
CAN BE EXPECTED IN THE WARNED AREA.

LAT...LON 3622 9544 3621 9562 3614 9560 3609 9556
          3608 9544

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 29, 3:35 AM CDT, 55 minutes earlier.

Area forecast discussion, Jun 29, 3:35 AM CDT, 55 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
335 AM CDT FRI JUN 29 2001

FORECAST HINGES ON WHAT BECOMES OF UPPER LOW SEEN SPINNING OVER
SOUTHERN MISSOURI IN WATOR VAPOR IMAGERY.  CONCENSUS OF ETA AND AVN
IS THAT IT WILL STAY OVER SOUTHERN MISSOURI THROUGH THIS EVENING.
THEN IT WILL ELONGATE AND PIVOT AND RUN FROM SOUTHEAST OKLAHOMA INTO
SOUTHEAST MISSOURI BY SATURDAY EVENING.  FROM THERE THE ETA AND AVN
DIVERGE WITH THE ETA TAKING IT SLIGHTLY EAST AND SHEARING IT OUT
WHILE THE AVN KEEPS IT OVER THE AREA AND THEN SHOVES IT WEST SUNDAY
NIGHT.  ALL IN ALL EXPECT A DECENT CHANCE OF SHOWERS AND
THUNDERSTORMS OVER THE AREA UNTIL SUNDAY AND THEN THINK WILL HAVE A
BREAK IN THE RAIN CHANCES MONDAY AND TUESDAY.

AT THIS TIME HAVE SCATTERED TSRA WITH ONE OCCASIONALLY BECOMING
SEVERE.  I GOT HAILED ON ON THE WAY TO WORK AND WOULD NOT BE
SURPRISED IF IT HAPPENS AGAIN TONIGHT.  BULK OF ACTIVITY YESTERDAY
AND THIS MORNING HAS BEEN TO THE SOUTHWEST OF THE UPPER LOW.  EXPECT
THAT AGAIN TONIGHT BUT WHEN THE UPPER LOW STARTS TO SHEAR SATURDAY
AND SUNDAY EXPECT ACTIVITY TO BE MOST WIDESPREAD TO ITS SOUTHEAST.
THUS...POPS IN THE SOUTHEAST HALF OF THE FORECAST AREA ARE HIGHER
THAN THOSE IN THE NORTHWEST HALF OF THE AREA AS TIME GOES ON.

TEMPS WILL DEPEND ON CLOUD COVER AND COVERAGE OF RAIN.  YESTERDAYS
HIGHS REMAINED QUITE COOL FOR THIS TIME OF YEAR DUE TO THE CLOUD
COVER AND RAIN.  NOT SURE WILL SEE A REPEAT PERFORMANCE. AM GOING TO
FORECAST HIGHS IN THE LOW TO MID 80S TODAY BASED ON THE FACT WE
COULD SEE SOME SUN.  DAY SHIFT CAN THEN TWEAK TEMPS DOWN OR UP A
CATEGORY ACCORDING TO WHAT DEVELOPS IN THE NEXT SEVERAL HOURS.

SIMILAR PROBLEM FOR SATURDAY AND SUNDAY...BUT SHOULD SEE A WARM UP
FOR MONDAY AND TUESDAY AS UPPER RIDGE TAKES HOLD AND SHOULD SEE
PLENTY OF SUN BY THEN.

FCSTID = 17
TUL   85  68  85  68 /  50  50  30  30
FSM   84  65  84  66 /  50  50  50  50
MLC   85  68  85  68 /  50  50  50  50
BVO   84  66  84  66 /  40  40  20  20
FYV   82  63  82  63 /  50  50  50  50
BYV   82  63  82  63 /  50  50  50  50
MIO   82  63  82  63 /  50  50  30  30e
MKO   85  68  85  68 /  50  50  30  30
F10   85  68  85  68 /  50  50  30  30
HHW   84  67  84  68 /  50  50  50  50

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

ABBAS

In the hours before

Local storm report, Jun 28, 11:15 PM CDT, 5 hours 15 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, 3 hours 42 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, 3:22 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	53 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, 4:44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.