Alert archive / Oklahoma / Tornado Warnings in 2001

Tornado Warning 58, NWS Norman, OK

June 4, 2001Roger Mills County, Oklahoma

NWS Norman, OK issued this tornado warning at Jun 4, 2001, 9:06 PM CDT for Roger Mills County, Oklahoma. It was in force for 29 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: Jun 4, 2001, 9:06 PM CDT (02:06 UTC)
Expired: Jun 4, 2001, 9:35 PM CDT
In force: 29 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Roger Mills County, OK

What was reported inside it

Time	Report	Where	Remark
Jun 4, 9:43 PM CDT	Hail 0.75	Cheyenne, 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
Jun 4, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.1 hours before the alert went out and 178 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: 282 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 3850 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOUN 050206
TOROKC
OKC129-050235-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
906 PM CDT MON JUN 4 2001

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN AND CENTRAL ROGER MILLS COUNTY IN WESTERN OKLAHOMA

* UNTIL 935 PM CDT

* AT 906 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO 9 MILES WEST OF CHEYENNE...MOVING
  NORTHEAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE CHEYENNE...ROLL AND STRONG CITY

TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE
TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE
WALLS.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW. IF A BASEMENT IS NOT AVAILABLE...MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. LEAVE MOB(ILE HOMES AND
VEHICLES FOR REINFORCED SHELTER. STAY AWAY FROM WINDOWS.

LAT...LON 3561 9997 3543 9985 3556 9948 3582 9967

WR

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this tornado warning went out at Jun 4, 3:30 PM CDT, 5 hours 36 minutes earlier.

Area forecast discussion, Jun 4, 3:30 PM CDT, 5 hours 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
330 PM CDT MON JUN 4 2001

REMAINS OF SFC FNT WHICH PUSHED INTO NWRN SECS OF THE FA OVERNIGHT
AND ERLY THIS MRNG STILL EVIDENT ON MESONET DATA THIS AFTN.  WARM
FRONT HAS LIFTED NWD INTO SRN KS. DRY LINE ALSO EXTENDS FROM SW TX
INTO FAR SWRN OK. 12Z UA DATA SHOWED AREA STILL WELL CAPPED ALTHOUGH
THERE ARE SIGNS THIS MAY BE CHANGING. S/W MOVING EWD OUT OF CO MAY
GENERATE ENUF LIFT TO HELP WEAKEN THE CAP ALLOWING TSTMS TO DEVELOP
IN THE VCNTY OF THE SFC BNDRYS. WITH AMS ONCE AGAIN XTRMLY
UNSTABLE...ANYTHING THAT GOES WUD LIKELY BECOME SVR. WILL GO AHEAD
AND INCLUDE POPS FOR CNTRL AND WRN SECS FOR TONIGHT. MAIN UPR TROF
GRDLY WORKS ITS WAY EWD N OF THE AREA THROUGH MID WEEK WITH A SERIES
OF WEAK S/W BRUSHING THE AREA. WITH MID LVL TMPS NOT AS WARM AND SFC
BNDRYS EXPECTED TO PUSH INTO THE AREA...WILL CONT WITH CHC CAT POPS
INTO WEDNESDAY. SFC BNDRY SHUD PUSH S OF THE AREA BY THURSDAY MRNG
WITH UPR RDG BEGINNING TO BUILD BACK OVER THE AREA.

FCSTID = 2
OKC   70  87  65  80 /  10  10  40  30
HBR   71  92  67  87 /  10  10  30  30
SPS   71  92  67  87 /  10  10  30  30
GAG   63  85  60  78 /  20  30  40  30
PNC   70  86  64  78 /  30  30  40  30
DUA   73  90  70  87 /  10  10  30  30

.OUN...
OK...NONE.
TX...NONE.

In the hours before

Local storm report, Jun 4, 6:50 PM CDT, 2 hours 16 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
650 PM CDT MON JUN 04 2001

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

0631 PM    ERICK                     OK   .75 INCH HAIL
06/04/01   BECKHAM                        RPTD BY S.O.

0648 PM    3 NW MCKNIGHT             OK   1.00 INCH HAIL
06/04/01   HARMON                         QUARTERS COVERING GROUND.
                                          RPTD BY PUBLIC.

TL

Local storm report, Jun 4, 7:28 PM CDT, 1 hour 38 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
728 PM CDT MON JUN 04 2001

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

0715 PM    10 W CHEYENNE             OK   .75 INCH HAIL
06/04/01   ROGER MILLS                    RPTD BY S.O.

0713 PM    DACOMA                    OK   .75 INCH HAIL
06/04/01   WOODS                          RPTD BY F.D.

0716 PM    CHEROKEE                  OK   .88 INCH HAIL
06/04/01 I  ALFALFA                        RPTD BY S.O.

TL

Local storm report, Jun 4, 7:59 PM CDT, 1 hour 7 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
759 PM CDT MON JUN 04 2001

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

0758 PM    VICI                      OK   .75 INCH HAIL
06/04/01   DEWEY                          RPTD BY NWS COOP OBSVR.

TL

Local storm report, Jun 4, 8:47 PM CDT, 19 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
847 PM CDT MON JUN 04 2001

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

0830 PM    1 S REYDON                OK   .88 INCH HAIL
06/04/01   ROGER MILLS                    REPORTED BY PUBLIC

0840 PM    1 S REYDON                OK   .88 INCH HAIL
06/04/01   ROGER MILLS                    PUBLIC RPT. PREVIOUS EVENT
                                          15 MIN DURATION.

0843 PM    18 NE CHESTER             OK   1.25 INCH HAIL
06/04/01   MAJOR                          HALF DOLLAR SIZE HAIL
                                          REPORTED BY PUBLIC.

0850 PM    14 SE WAYNOKA             OK   1.75 INCH HAIL
06/04/01   WOODS                          @GOLF BALL SIZE HAIL
                                          REPORTED BY PUBLIC.

Local storm report, Jun 4, 8:57 PM CDT, 9 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
857 PM CDT MON JUN 04 2001

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

0810 PM    5 E MUTUAL                OK   2.00 INCH HAIL
06/04/01   WOODWARD                       REPORTED BY PUBLIC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 7:39 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	36 min
Jun 4, 8:00 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	35 min
Jun 4, 8:05 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woodward	35 min
Jun 4, 8:33 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	42 min
Jun 4, 8:41 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods	39 min
Jun 4, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	40 min
Jun 4, 9:01 PM CDT	Severe Thunderstorm Warning	OUN	Woods	39 min
Jun 4, 9:36 PM CDT	Tornado Warning	OUN	Roger Mills	39 min
Jun 4, 9:40 PM CDT	Flash Flood Warning	OUN	Roger Mills	3 hr
Jun 4, 10:14 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	61 min
Jun 4, 10:24 PM CDT	Severe Thunderstorm Warning	OUN	Custer	51 min
Jun 4, 10:28 PM CDT	Tornado Warning	OUN	Roger Mills	47 min
Jun 4, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis	49 min
Jun 4, 11:08 PM CDT	Tornado Warning	OUN	Roger Mills	52 min
Jun 4, 11:12 PM CDT	Severe Thunderstorm Warning	OUN	Custer	63 min
Jun 4, 11:24 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	51 min
Jun 4, 11:29 PM CDT	Severe Thunderstorm Warning	OUN	Harper	46 min
Jun 4, 11:54 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	51 min
Jun 5, 12:13 AM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major, Woodward	47 min
Jun 5, 12:17 AM CDT	Severe Thunderstorm Warning	OUN	Harper	43 min
Jun 5, 1:07 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	23 min
Jun 5, 1:10 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	40 min
Jun 5, 1:30 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	30 min
Jun 5, 1:35 AM CDT	Severe Thunderstorm Warning	OUN	Garfield	40 min
Jun 5, 2:19 AM CDT	Severe Thunderstorm Warning	OUN	Blaine	26 min
Jun 5, 4:59 AM CDT	Severe Thunderstorm Warning	OUN	Garfield	31 min
Jun 5, 4:31 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	44 min
Jun 5, 5:37 PM CDT	Severe Thunderstorm Warning	OUN	Woods	38 min
Jun 5, 6:26 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	49 min
Jun 5, 6:42 PM CDT	Severe Thunderstorm Warning	OUN	Woods	48 min
Jun 5, 6:56 PM CDT	Tornado Warning	OUN	Woodward	34 min
Jun 5, 6:57 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	63 min

Nearby

Tornado Warnings in Oklahoma, 2001 Every tornado warning in 2001 Tornadoes 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.