Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 227, NWS Tulsa, OK

May 30, 2001McIntosh County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 30, 2001, 4:18 AM CDT for McIntosh County, Okmulgee County, Oklahoma. It was in force for 42 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 30, 2001, 4:18 AM CDT (09:18 UTC)
Expired: May 30, 2001, 5:00 AM CDT
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties McIntosh County, OK, Okmulgee County, OK

What was reported inside it

Time	Report	Where
May 30, 4:30 AM CDT	Thunderstorm Wind 52 E	Hanna, OK
May 30, 4:30 AM CDT	Thunderstorm Wind 52 E	Henryetta, OK
May 30, 4:30 AM CDT	Hail 0.75	Henryetta, 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

Norman, OK (KOUN), launched 00:00Z, 9.3 hours before the alert went out and 147 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: 1017 J/kg
Mixed-layer CIN: -336 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 424 m²/s²
0-3 km storm-relative helicity: 670 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

265 
WUUS54 KTSA 300919
SVRTUL
OKC091-111-301000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
418 AM CDT WED MAY 30 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA
  MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 500 AM CDT

* AT 418 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4
  MILES WEST OF HENRYETTA...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  RENTIESVILLE...STIDHAM...VIVIAN...RAIFORD...CHECOTAH...EUFAULA...
  SCHULTER...GRAYSON...HOFFMAN...DEWAR AND HENRYETTA.

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

$$

LAT...LON 3557 9612 3529 9608 3522 9584 3532 9535
          3556 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 May 29, 11:10 PM CDT, 5 hours 8 minutes earlier.

Area forecast discussion, May 29, 11:10 PM CDT, 5 hours 8 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1110 PM CDT TUE MAY 29 2001

SENT A QUICK UPDATE OUT FOR ADDITION OF TORNADO WATCH UNTIL 400 AM.
ALSO ADDED oHEAVY RAIN WORDING TO FLASH FLOOD WATCH ZONES.

HOWIESON
FCSTID = 44

.TSA...
AR...NONE.
OK...FLASH FLOOD WATCH FOR THIS EVENING THROUGH WEDNESDAY MORNING FOR
ZONES OKZ054>068...OKZ070>071.

In the hours before

Local storm report, May 30, 1:43 AM CDT, 2 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
143 AM CDT WED MAY 30 2001

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

0145 AM    OWASSO                    OK    WIND DAMAGE
05/30/01   TULSA                           POWER LINES BLOWN DOWN
                                           NEAR OWASSO. SPOTTER
                                           REPORT.

Local storm report, May 30, 1:50 AM CDT, 2 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
150 AM CDT WED MAY 30 2001

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

0144 AM    TULSA                     OK    FLOOD
05/30/01   TULSA                           SPOTTER REPORT OF
                                           HARVARD ALMOST
                                           IMPASSABLE AT 71ST ST
                                           AND 81ST ST.

Local storm report, May 30, 2:38 AM CDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
238 AM CDT WED MAY 30 2001

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

0231 AM    KIEFER                    OK    FLOOD
05/30/01   CREEK                           EMERGENCY MANAGEMENT
                                           REPORT OF WATER A FOOT
                                           DEEP OVER HIGHWAY 75.

Local storm report, May 30, 3:08 AM CDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
308 AM CDT WED MAY 30 2001

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

0255 AM    BEGGS                     OK    FLOOD
05/30/01   OKMULGEE                        HIGHWAY 16 AND BUSINESS
                                           HIGHWAY 75 UNDERPASSES
                                           CLOSED DUE TO HIGH
                                           WATER.  EMERGENCY
                                           MANAGEMENT REPORT.

0300 AM    COWETA                    OK    FLOOD
05/30/01   WAGONER                         SEVERAL ROADS
                                           IMPASSABLE.  POLICE
                                           DEPARTMENT REPORT.

Special weather statement, May 30, 3:10 AM CDT, 1 hour 8 minutes before

ARZ001-002-010-011-OKZ054>070-301000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
310 AM CDT WED MAY 30 2001

THE TORNADO AND SEVERE THUNDERSTORM WATCHES WHICH HAVE BEEN IN
EFFEC&T FOR MUCH OF NORTHEAST OKLAHOMA AND THE NORTHWEST CORNER OF
ARKANSAS HAVE BEEN CANCELLED. SHOWERS AND THUNDERSTORMS WILL
CONTINUE ACROSS THE AREA EARLY THIS MORNING BUT THE THREAT OF SEVERE
WEATHER HAS DIMINISHED.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	60 min
May 29, 11:57 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	63 min
May 30, 12:47 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	58 min
May 30, 1:12 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	48 min
May 30, 1:26 AM CDT	Flash Flood Warning	TSA	Creek, Tulsa	3 hr
May 30, 2:07 AM CDT	Flash Flood Warning	TSA	Okmulgee, Wagoner	3 hr
May 30, 2:30 AM CDT	Flash Flood Warning	TSA	Muskogee	3 hr
May 30, 3:15 AM CDT	Flash Flood Warning	TSA	Cherokee	3 hr
May 30, 3:59 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	46 min
May 30, 5:47 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	43 min
May 30, 6:29 AM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee	3 hr
May 30, 6:29 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee	46 min
May 30, 6:36 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	24 min
May 30, 6:49 AM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	56 min
May 30, 7:04 AM CDT	Severe Thunderstorm Warning	TSA	Latimer	56 min
May 30, 8:58 AM CDT	Flash Flood Warning	TSA	Cherokee, McIntosh, Muskogee, Okfuskee, Okmulgee, Sequoyah	2 hr
May 30, 4:02 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	43 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.