Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 392, NWS Tulsa, OK

September 7, 2001Latimer County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 7, 2001, 11:31 PM CDT for Latimer County, Pushmataha County, Oklahoma. It was in force for 59 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
Sep 7, 2001, 11:31 PM CDT (04:31 UTC)
Expired
Sep 8, 2001, 12:30 AM CDT
In force
59 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Latimer County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 128 km from the middle of the area, began a volume at 04:17 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

TimeReportWhereRemark
Sep 7, 11:37 PM CDTThunderstorm Wind 52 EWilburton, OKThunderstorm winds estimated at 60 miles an hour blew down large tree limbs.
Sep 8, 12:38 AM CDTThunderstorm Wind 61 EFinley, OKThunderstorm winds estimated at 70 miles an hour destroyed a garage.

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.

IssuedProductOfficeLasted
Sep 7, 10:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.5 hours before the alert went out and 194 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2001-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3154 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2001-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3154 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1262 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
2.3
Supercell composite
17.3

Open this sounding in Storm Lab

The text

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

135 
WUUS54 KTSA 080432
SVRTUL
OKC077-127-080530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1131 PM CDT FRI SEP 7 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LATIMER COUNTY IN SOUTHEAST OKLAHOMA
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1230 AM CDT

* AT 1131 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 10 MILES WEST OF MOYERS TO 7 MILES NORTHWEST
  OF STANLEY TO 15 MILES NORTHWEST OF WILBURTON...MOVING EAST AT 50
  MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...DUNBAR...
  KELLOND...OLETA...ALBION...KIAMICHI...TUSKAHOMA...STANLEY...
  NASHOBA...SNOW...KOSOMA...MOYERS...CLOUDY...CLAYTON...ANTLERS...RED
  OAK...DAMON...BENGAL...HIGGINS...YANUSH...WILBURTON AND VETERANS
  COLONY.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 70 MPH CAN BE EXPECTED 
IN THE WARNED AREA.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

THIS IS A DANGEROUS STORM. IF YOU ARE NEAR ITS PATH YOU SHOULD 
PREPARE STRONG DAMAGING STRAIGHT LINE WINDS. SEEK SHELTER IN A 
STURDY BUILDING AND STAY AWAY FROM WINDOWS

LAT...LON 3420 9590 3461 9555 3505 9551 3508 9498
          3454 9502 3419 9518

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 Sep 7, 7:07 PM CDT, 4 hours 24 minutes earlier.

Area forecast discussion, Sep 7, 7:07 PM CDT, 4 hours 24 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
707 PM CDT FRI SEP 7 2001

WILL UPDATE FOR NEW TORNADO WATCH NUMBER 720 IN EFFECT UNTIL
MIDNIGHT.

MESONET WINDS AND 3 HOURLY PRESSURE FALLS SUGGEST THAT TORNADO
THREAT SHUD REMAIN N OF I-40.  PRIMARY SEVERE WEATHER
THREAT...HOWEVER...WILL BE LARGE HAIL AND DAMAGING WINDS.

ALSO PUSHED OFF POPS FOR FAR SE OK AND NW AR UNTIL AFTER MIDNIGHT.

UPDATE OUT AROUND 715 PM.

FCSTID = 18

.TSA...
AR...NONE.
OK...TORNADO WATCH UNTIL MIDNIGHT CDT SATURDAY FOR ZONES
OKZ054>068...OKZ070>071...OKZ073.

In the hours before

Local storm report, Sep 7, 9:12 PM CDT, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
912 PM CDT FRI SEP 07 2001

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

0810 PM    SHAMROCK                  OK    70 MPH TSTM GUST
09/07/01   CREEK                           SPOTTER REPORT.

0810 PM    SHAMROCK                  OK    .75 INCH HAIL
09/07/01   CREEK                           SPOTTER REPORT.
Special weather statement, Sep 7, 9:13 PM CDT, 2 hours 18 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-081200-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
913 PM CDT FRI SEP 7 2001

...UPDATE FOR TORNADO WATCH NUMBER 720...

.DISCUSSION...
AT 9PM THE LOW-LEVEL INSTABILITY AXIS EXTENDED FROM NEAR JOPLIN TO
MCALESTER.  THE LINE OF THUNDERSTORMS WILL CONTINUE SEVERE AS IT
CROSSES THIS AXIS...BUT SHOULD BEGIN TO WEAKEN AS IT MOVES PAST
THE THE GREATEST INSTABILITY AND AS THE ASSOCIATED UPPER-LEVEL
SYSTEM WEAKENS AND ACCELERATES NORTHEAST AWAY FROM THE REGION.

THE THREAT FOR SEVERE WEATHER IN WESTERN ARKANSAS AND FAR SOUTHEAST
OKLAHOMA WILL BE LIMITED IF THE STORMS WEAKEN AS EXPECTED.

SEE SHORT TERM FORECASTS FOR THE LATEST PROJECTIONS ON THIS LINE
OF SEVERE STORMS.
Local storm report, Sep 7, 9:37 PM CDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
937 PM CDT FRI SEP 07 2001

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

0935 PM    MAZIE                     OK    65 MPH TSTM GUST
09/07/01   MAYES                           SPOTTER REPORT.
Special weather statement, Sep 7, 10:06 PM CDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1006 PM CDT FRI SEP 7 2001

OKZ057-058-062-063-065>068-070-071-073-080400-
CHEROKEE-CRAIG-DELAWARE-MAYES-MCINTOSH-MUSKOGEE-OKFUSKEE-OKMULGEE-
OTTAWA-PITTSBURG-WAGONER-
1006 PM CDT FRI SEP 7 2001

TORNADO WATCH NUMBER 720 REMAINS IN EFFECT UNTIL MIDNIGHT FOR THE
FOLLOWING OKLAHOMA COUNTIES...

CHEROKEE...CRAIG...DELAWARE...MAYES...MCINTOSH...MUSKOGEE...
OKFUSKEE...OKMULGEE...OTTAWA...PITTSBURG AND WAGONER COUNTIES.

THE LINE OF THUNDERSTORMS WILL CONTINUE SEVERE FOR THE NEXT COUPLE
OF HOURS AS IT MOVES ACROSS PARTS OF EASTERN OKLAHOMA.

OKZ056-060-061-064-080400-
CREEK-NOWATA-ROGERS-TULSA-
1006 PM CDT FRI SEP 7 2001

TORNADO WATCH NUMBER 720 HAS BEEN CANCELED IN CREEK...NOWATA...
ROGERS AND TULSA COUNTIES.  THE LINE OF SEVERE STORMS HAS MOVED
OUT OF THESE COUNTIES AND THE THREAT FOR SEVERE WEATHER HAS ENDED.
Special weather statement, Sep 7, 10:13 PM CDT, 1 hour 18 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-080515-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1013 PM CDT FRI SEP 7 2001

...UPDATE FOR TORNADO WATCH NUMBER 720...

TORNADO WATCH NUMBER 720 FOR PARTS OF EASTERN OKLAHOMA WILL BE
REPLACED BY A SEVERE THUNDERSTORM WATCH THAT WILL COVER PARTS OF
EASTERN OKLAHOMA AND MUCH NORTHWEST ARKANSAS.

.DISCUSSION...
THE LINE OF THUNDERSTORMS MOVING ACROSS EASTERN OKLAHOMA WILL
CONTINUE SEVERE THROUGH MIDNIGHT WITH SOME WEAKENING LIKELY
THEREAFTER.  HOWEVER THE POTENTIAL FOR STRONG WINDS MAY CONTINUE INTO
THE OVERNIGHT HOURS AND A SEVERE THUNDERSTORM WATCH WILL BE ISSUED
SOON FOR MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
Special weather statement, Sep 7, 11:03 PM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1103 PM CDT FRI SEP 7 2001

OKZ057-058-062-065>067-080900-
CRAIG-MAYES-OKFUSKEE-OKMULGEE-OTTAWA-WAGONER-
1103 PM CDT FRI SEP 7 2001

...TORNADO WATCH NUMBER 720 HAS BEEN CANCELLED...

TORNADO WATCH NUMBER 720 HAS BEEN CANCELLED FOR CRAIG...MAYES...
OKFUSKEE...OKMULGEE...OTTAWA AND WAGONER COUNTIES.

ARZ001-002-010-011-019-020-029-OKZ049-053-063-068>076-080900-
ADAIR-BENTON-CARROLL-CHEROKEE-CHOCTAW-CRAWFORD-DELAWARE-FRANKLIN-
HASKELL-LATIMER-LE FLORE-MADISON-MCINTOSH-MUSKOGEE-PITTSBURG-
PUSHMATAHA-SEBASTIAN-SEQUOYAH-WASHINGTON AR-
1103 PM CDT FRI SEP 7 2001

...SEVERE THUNDERSTORM WATCH NUMBER 724 REMAINS IN EFFECT THROUGH
   400 AM...

SEVERE THUNDERSTORM WATCH NUMBER 724 REPLACES PARTS OF TORNADO WATCH
720 IN PORTIONS OF EASTERN OKLAHOMA AND INCLUDES ALL OF SOUTHEAST
OKLAHOMA AND NORTHWEST ARKANSAS.

IN EASTERN OKLAHOMA THE WATCH INCLUDES: ADAIR...CHEROKEE...
CHOCTAW...DELAWARE...HASKELL...LATIMER...LE FLORE...MCINTOSH...
MUSKOGEE...PITTSBURG...PUSHMATAHA AND SEQUOYAH COUNTIES.

IN NORTHWEST ARKANSAS THE WATCH INCLUDES: BENTON...CARROLL...
MADISON...CRAWFORD...FRANKLIN...SEBASTIAN AND WASHINGTON COUNTIES.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 7:27 PM CDTSevere Thunderstorm WarningTSACreek63 min
Sep 7, 7:38 PM CDTSevere Thunderstorm WarningTSAOsage, Washington52 min
Sep 7, 7:38 PM CDTSevere Thunderstorm WarningTSAPawnee52 min
Sep 7, 7:59 PM CDTSevere Thunderstorm WarningTSANowata61 min
Sep 7, 8:03 PM CDTSevere Thunderstorm WarningTSACreek, Tulsa57 min
Sep 7, 8:03 PM CDTSevere Thunderstorm WarningTSARogers57 min
Sep 7, 8:10 PM CDTSevere Thunderstorm WarningTSAOkfuskee50 min
Sep 7, 8:22 PM CDTSevere Thunderstorm WarningTSACraig38 min
Sep 7, 8:39 PM CDTSevere Thunderstorm WarningTSAOkmulgee, Wagoner51 min
Sep 7, 8:55 PM CDTSevere Thunderstorm WarningTSATulsa35 min
Sep 7, 8:57 PM CDTSevere Thunderstorm WarningTSACraig, Mayes, Rogers63 min
Sep 7, 8:57 PM CDTSevere Thunderstorm WarningTSAOttawa63 min
Sep 7, 8:57 PM CDTSevere Thunderstorm WarningTSAOkfuskee33 min
Sep 7, 9:13 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee62 min
Sep 7, 9:13 PM CDTSevere Thunderstorm WarningTSAWagoner62 min
Sep 7, 9:39 PM CDTSevere Thunderstorm WarningTSAOkfuskee66 min
Sep 7, 9:40 PM CDTSevere Thunderstorm WarningTSADelaware65 min
Sep 7, 9:41 PM CDTSevere Thunderstorm WarningTSACherokee64 min
Sep 7, 10:11 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee64 min
Sep 7, 10:14 PM CDTSevere Thunderstorm WarningTSAAdair61 min
Sep 7, 10:30 PM CDTSevere Thunderstorm WarningTSAPittsburg60 min
Sep 7, 10:39 PM CDTSevere Thunderstorm WarningTSAHaskell66 min
Sep 7, 10:54 PM CDTSevere Thunderstorm WarningTSACherokee, Sequoyah, Wagoner66 min
Sep 7, 10:59 PM CDTSevere Thunderstorm WarningTSAPittsburg46 min
Sep 7, 11:13 PM CDTSevere Thunderstorm WarningTSAMcIntosh47 min
Sep 7, 11:24 PM CDTSevere Thunderstorm WarningTSAAdair51 min
Sep 7, 11:42 PM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore, Sequoyah63 min
Sep 8, 12:19 AM CDTSevere Thunderstorm WarningTSAChoctaw, Pushmataha56 min
Sep 8, 1:15 AM CDTSevere Thunderstorm WarningTSALeFlore60 min
Sep 8, 3:41 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer64 min
Sep 8, 3:50 PM CDTSevere Thunderstorm WarningTSAPittsburg55 min
Sep 8, 4:45 PM CDTSevere Thunderstorm WarningTSALatimer60 min
Sep 8, 5:18 PM CDTSevere Thunderstorm WarningTSAPushmataha57 min
Sep 8, 5:30 PM CDTSevere Thunderstorm WarningTSALeFlore60 min
Sep 8, 6:09 PM CDTSevere Thunderstorm WarningTSALatimer66 min
Sep 8, 6:14 PM CDTFlash Flood WarningTSALatimer3 hr
Sep 8, 6:30 PM CDTSevere Thunderstorm WarningTSALeFlore60 min
Sep 8, 6:43 PM CDTSevere Thunderstorm WarningTSAPushmataha62 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2001Every 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.