Alert archive / Oklahoma / Tornado Warnings in 2001

Tornado Warning 60, NWS Norman, OK

June 4, 2001Roger Mills County, Oklahoma

NWS Norman, OK issued this tornado warning at Jun 4, 2001, 10:28 PM CDT for Roger Mills County, Oklahoma. It was in force for 47 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 4, 2001, 10:28 PM CDT (03:28 UTC)
Expired: Jun 4, 2001, 11:15 PM CDT
In force: 47 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Roger Mills County, OK

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, 3.5 hours before the alert went out and 196 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 050329
TOROKC

OKC129-050415-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
1028 PM CDT MON JUN 4 2001

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  ROGER MILLS COUNTY IN WESTERN OKLAHOMA

* UNTIL 1115 PM CDT

* AT 1028 PM CDT...FIREFIGHTERS REPORTED A TORNADO 8 MILES SOUTHWEST OF
  LEEDEY. THE LARGE STORM WAS MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IN THE WARNING INCLUDE ANGORA...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 MOBILE HOMES AND
VEHICLES FOR REINFORCED SHELTER. STAY AWAY FROM WINDOWS.

LAT...LON 3580 9984 3557 9974 3565 9941 3600 9941
          3582 9963

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, 10:00 PM CDT, 28 minutes earlier.

Area forecast discussion, Jun 4, 10:00 PM CDT, 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1000 PM CDT MON JUN 4 2001

LOSS OF DAYTIME HEATING SHOULD HELP TO GRADUALLY WEAKEN THE CURRENT
CROP OF STRONG AND SEVERE THUNDERSTORMS.  HOWEVER... A CHANCE OF
STORMS WILL PERSIST OVERNIGHT... ESPECIALLY IN THE NORTH WHERE THE
COMBINED EFFECTS OF THE LOW-LEVEL JET AND SURFACE TROUGH WILL FAVOR
CONTINUING STORM DEVELOPMENT... ALTHOUGH PROBABLY NOT AS STRONG AS
THOSE OF THIS EVENING.

WE WILL ALSO HAVE TO MONITOR THE PROGRESS OF THE STORM SYSTEM JUST
TO OUR SOUTHWEST.  IR IMAGERY SHOWS COOLING TOPS... SO IF THIS TREND
CONTINUES WE WILL ALSO NEED TO MAINTAIN SIGNIFICANT POPS IN THE
SOUTHWEST ZONE GROUPS.

WINDS MAY NEED TO BE NUDGED UP A BIT IN THE WESTERN ZONES
OVERNIGHT.  ONCE WE GET A CHANCE TO PERUSE THE NEW MODEL GUIDANCE WE
CAN MAKE THE FINAL DECISION ON THAT.

THESE ITEMS WILL PROBABLY BE UPDATED BETWEEN 11 PM AND MIDNIGHT.

FCSTID = 2?3 = CMS

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

In the hours before

Local storm report, Jun 4, 8:47 PM CDT, 1 hour 41 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, 1 hour 31 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

Local storm report, Jun 4, 9:28 PM CDT, 1 hour before

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

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

0925 PM    8 RNW ALVA                 OK   .75 INCH HAIL
06/04/01   WOODS                          REPORTED BY PUBLIC

Local storm report, Jun 4, 9:40 PM CDT, 48 minutes before

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

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

0910 PM    4 N SWEETWATER            OK   1.75 INCH HAIL
06/04/01   ROGER MILLS                    GOLF BALL SIZE HAIL
                                          REPORTED BY EM.

0937 PM    12 N ALVA                 OK   .88 INCH HAIL
06/04/01   WOODS                          REPORTED BY PUBLIC

Local storm report, Jun 4, 9:59 PM CDT, 29 minutes before

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

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

0943 PM    CHEYENNE                  OK   .75 INCH HAIL
06/04/01   ROGER MILLS                    REPORTED BY SHERIFFS OFFICE

Local storm report, Jun 4, 10:22 PM CDT, 6 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1022 PM CDT MON JUN 04 2001

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

1017 PM    7$ NW REYDON               OK   1.75 INCH HAIL
06/04/01   ROGER MILLS                    RPTD BY REYDON EOC TO BE ON
                                          TX/OK STATE LINE.

TL

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, 9:06 PM CDT	Tornado Warning	OUN	Roger Mills	29 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, 10:41 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; the sounding from the Mesonet's radiosonde archive.