Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 263, NWS Tulsa, OK

May 27, 2000Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 27, 2000, 1:19 AM CDT for Sequoyah County, Oklahoma. It was in force for 41 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: May 27, 2000, 1:19 AM CDT (06:19 UTC)
Expired: May 27, 2000, 2:00 AM CDT
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sequoyah County, OK

What was reported inside it

Time	Report	Where	Remark
May 27, 1:30 AM CDT	Hail 1	Short, 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
May 26, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.3 hours before the alert went out and 166 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: 1527 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1270 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 10.2

Open this sounding in Storm Lab

The text

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

757 
WUUS54 KTSA 270621
SVRTUL
OKC135-270700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
119 AM CDT SAT MAY 27 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 200 AM CDT

* AT 119 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER BRUSHY...MOVING EAST AT 35 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MOFFETT...
SHORT...BRUSHY AND ROLAND

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

LAT...LON 3566 9475 3548 9479 3537 9440 3563 9440

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 May 26, 9:26 PM CDT, 3 hours 53 minutes earlier.

Area forecast discussion, May 26, 9:26 PM CDT, 3 hours 53 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
926 PM CDT FRI MAY 26 2000

BUSY NIGHT AHEAD AS WIDESPREAD CONVECTION EXPECTED TO AFFECT A LARGE
PART OF FORECAST AREA OVERNIGHT. ONE CLUSTER OF STORMS WAS CURRENTLY
AFFECTING NORTHWEST CORNER OF ARKANSAS...WITH OTHER STORMS TO THE WEST
OF FORECAST AREA POISED TO MOVE EAST.

EXTREME INSTABILITY (5000 J/KG ON 00Z OUN SOUNDING)...FAVORABLE LOW
LEVEL WIND PROFILE...AND MODERATELY STRONG MID LEVEL FLOW WILL LEAD TO
NUMEROUS CLUSTERS OF STRONG TO SEVERE STORMS TONIGHT.

HAVE ALREADY SENT UPDATED ZONES TO RAISE POPS AND MENTION HEAVY RAINS
IN SOME OF THE ZONES. HIGHEST POTENTIAL FOR HEAVY RAINS APPEARS TO BE
ACROSS SOUTHERN PART OF FORECAST AREA WHERE DEVELOPING MCC IN CENTRAL
OKLAHOMA WILL TRACK LATER TONIGHT.

DID NOT MAKE ANY CHANGES TO LATER PERIODS OF FORECAST.

FCSTID = 9

.TUL...
AR...TORNADO WATCH UNTIL 100 AM CDT SATURDAY FOR ZONES
OKZ054>055...OKZ059>060...OKZ064>066...OKZ071...OKZ073.

OK...TORNADO WATCH UNTIL 200 AM CDT SATURDAY FOR ZONES OKZ049...
OKZ053.

In the hours before

Local storm report, May 26, 11:29 PM CDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1129 PM CDT FRI MAY 26 2000

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

1048 PM    10 W EUFAULA              OK    .75 INCH HAIL
05/26/00   MCINTOSH                        SPOTTER REPORT

1050 PM    HITCHITA                  OK    1 INCH HAIL
05/26/00   MCINTOSH                        PUBLIC REPORT

Local storm report, May 27, 12:28 AM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1228 AM CDT SAT MAY 27 2000

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

1200 AM    VIAN                      OK    .88 INCH HAIL
05/27/00   SEQUOYAH                        PUBLIC REPORT

1155 PM    5 E BEGGS                 OK    80 MPH TSTM GUST
05/26/00   OKMULGEE                        SPOTTER REPORT

Local storm report, May 27, 12:36 AM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1236 AM CDT SAT MAY 27 2000

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

1234 AM    TAFT                      OK    60 MPH TSTM GUST
05/27/00   MUSKOGEE                        EMERGENCY MANAGEMENT
                                           REPORT

Local storm report, May 27, 12:42 AM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1242 AM CDT SAT MAY 27 2000

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

1235 AM    3 S MUSKOGEE              OK    60 MPH TSTM GUST
05/27/00   MUSKOGEE                        HIGHWAY PATROL REPORT

Local storm report, May 27, 12:55 AM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1255 AM CDT SAT MAY 27 2000

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

1048 PM    7 W EUFAULA               OK    .75 INCH HAIL
05/26/00   MCINTOSH                        EOC REPORT OF DIME
                                           SIZED HAIL.

1053 PM    EUFAULA                   OK    .75 INCH HAIL
05/26/00   MCINTOSH                        HAM RADIO REPORT OF
                                           DIME SIZED HAIL.

Local storm report, May 27, 1:15 AM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
115 AM CDT SAT MAY 27 2000

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

1130 PM    FERN                      AR    1 INCH HAIL
05/26/00   FRANKLIN                        EMERGENCY MANAGEMENT
                                           REPORT OF QUARTER SIZED
                                           HAIL

1150 PM    CASS                      AR    WIND DAMAGE
05/26/00   FRANKLIN                        TREES DOWNED IN CASS.
                                           EMERGENCY MANAGEMENT
                                           REPORT.

1230 AM    7 W PEIERCE                OK    .75 INCH HAIL
05/27/00   MCINTOSH                        PUBLIC REPORT OF DIME
                                           SIZED HAIL.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 7:07 PM CDT	Severe Thunderstorm Warning	TSA	Adair	53 min
May 26, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	47 min
May 26, 10:16 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	44 min
May 26, 10:53 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	52 min
May 26, 11:04 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee	41 min
May 26, 11:05 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	40 min
May 26, 11:09 PM CDT	Severe Thunderstorm Warning	TSA	Adair	51 min
May 26, 11:18 PM CDT	Severe Thunderstorm Warning	TSA	Creek	42 min
May 26, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	49 min
May 26, 11:44 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	46 min
May 26, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	52 min
May 27, 12:01 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee	59 min
May 27, 12:12 AM CDT	Flash Flood Warning	TSA	Adair, Sequoyah	4 hr
May 27, 12:13 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh	62 min
May 27, 12:19 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	41 min
May 27, 12:33 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee	42 min
May 27, 12:35 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw	55 min
May 27, 12:36 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee	39 min
May 27, 1:03 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	42 min
May 27, 6:16 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	29 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.