Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 274, NWS Norman, OK

May 27, 2001Beckham County, Roger Mills County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 27, 2001, 9:25 PM CDT for Beckham County, Roger Mills County, Oklahoma. It was in force for 65 min. 1 report 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 27, 2001, 9:25 PM CDT (02:25 UTC)
Expired
May 27, 2001, 10:30 PM CDT
In force
65 min
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Beckham County, OK, Roger Mills County, OK

What was reported inside it

TimeReportWhereRemark
May 27, 9:50 PM CDTHail 1.75Sweetwater, 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.

IssuedProductOfficeLasted
May 27, 7:00 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.4 hours before the alert went out and 184 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, Amarillo Airport, TX at 00:00Z on 2001-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2008 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, Amarillo Airport, TX at 00:00Z on 2001-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939587897117Sfc1 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
2008 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
2400 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 27, 8:41 PM CDT, 44 minutes earlier.

Area forecast discussion, May 27, 8:41 PM CDT, 44 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
841 PM CDT SUN MAY 27 2001

DESPITE WIDESPREAD SEVERE T-STORMS ACROSS N OK... WHICH WILL SWEEP
SE ACROSS MOST IF NOT ALL OF THE REST OF THE CWA OVERNIGHT...
PREVIOUS FORECAST PACKAGE COVERED THINGS SO WELL THAT ONLY MINOR
ADJUSTMENTS ARE NEEDED AT THIS TIME. WILL DROP THE PROBABILITY
WORDING ACROSS N AND CENTRAL OK, AND UP POPS TO LIKELY/CATEGORICAL
IN THE S, AS SOLID LINE OF CONVECTION ALONG LEADING EDGE OF MCS
ENSURES THAT NEARLY ALL AREAS WILL GET A PIECE OF THE ACTION.
STORMS AND ASSOCIATED SEVERE POTENTIAL WILL DECREASE BY OR JUST
AFTER MIDNIGHT IN THE N AS THE COMPLEX MOVES S OF THESE AREAS. MAIN
SEVERE THREAT EXPECTED TO BE DAMAGING WINDS AS THE ASSOCIATED COLD
POOL ACCELERATES SE-WARD, BUT LARGE HAIL ALSO WILL REMAIN A THREAT
WITH SOME OF THE CORES. FLASH FLOOD THREAT APPEARS TO BE LESSENING
AS THE PRIMARY CONVECTIVE LINE IS PERPENDICULAR TO THE MOTION
VECTOR, REDUCING THE THREAT OF TRAIN ECHOES. STILL NEED TO KEEP A
MENTION OF HEAVY RAINFALL, THO.

ZONE UPDATE OUT BY 9 PM. ANOTHER UPDATE WILL BE NEEDED AROUND
MIDNIGHT TO ADDRESS TEMPORAL WORDING AND UPDATE THE PROGRESS OF THE
MCS.

24

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

In the hours before

Local storm report, May 27, 6:51 PM CDT, 2 hours 34 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
651 PM CDT SUN MAY 27 2001

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

0615 PM    WOODS                     OK   1.00 INCH HAIL
05/27/01   WOODS                          CAPRON FD

0644 PM    BURLINGTON                OK   .75 =INCH HAIL
05/27/01   ALFALFA                        SPOTTER REPORT

FM
Local storm report, May 27, 9:19 PM CDT, 6 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
919 PM CDT SUN MAY 27 2001

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

0825 PM    8 S FARGO                 OK   1.00 INCH HAIL
05/27/01   ELLIS                          REPORTED BY EOC

0821 PM    4 N ENID                  OK   60 MPH WIND GUST
05/27/01   GARFIELD                       ESTIMATED BY SPOTTER

0821 PM    4 N ENID                  OK   .75 INCH HAIL
05/27/01   GARFIELD                       REPORTED BY SPOTTER

0802 PM    15 N GAGE                 OK   60 MPH WIND GUST
05/27/01   ELLIS                          ESTIMATED BY SPOTTER

0802 PM    15 N GAGE                 OK   1.00 INCH HAIL
05/27/01   ELLIS                          REPORTED BY SPOTTER

0805 PM    5 SW TANGIER              OK   60 MPH WIND GUST
05/27/01   WOODWARD                       ESTIMATED BY SPOTTER

0805 PM    1 NE FARGO                OK   60 MPH WIND GUST
05/27/01   ELLIS                          ESTIMATED BY SPOTTER

0800 PM    SHATTUCK                  OK   70 MPH WIND GUST
05/27/01   ELLIS                          ESTIMATED BY SPOTTER

0800 PM    21 NNE MOORELAND          OK   64 MPH WIND GUST
05/27/01   WOODWARD                       MEASURED BY OKLAHOMA
                                          MESONET

0755 PM    21 NNE MOORELAND          OK   65 MPH WIND GUST
05/27/01   WOODWARD                       MEASURED BY OKLAHOMA
                                          MESONET

0750 PM    21 NNE MOORELAND          OK   66 MPH WIND GUST
05/27/01   WOODWARD                       MEASURED BY OKLAHOMA
                                          MESONET

0725 PM    1 SW BUFFALO              OK   60 MPH WIND GUST
05/27/01   HARPER                         MEASURED BY OKLAHOMA
                                          MESONET

0705 PM    1 SSW CHEROKEE            OK   60 MPH WIND GUST
05/27/01   ALFALFA                        MEASURED BY OKLAHOMA
                                          MESONET

0758 PM    6 N MOORELAND             OK   60 MPH WIND GUST
05/27/01   WOODWARD                       ESTIMATED BY SPOTTER

0740 PM    21 NE MOORELAND           OK   60 MPH WIND GUST
05/27/01   WOODWARD                       MEASURED BY OKLAHOMA
                                          MESONET

0740 PM    16 NNE FREEDOM            OK   66 MPH WIND GUST
05/27/01   WOODS                          MEASURED BY OKLAHOMA
                                          MESONET

0745 PM    16 NNE FREEDOM            OK   62 MPH WIND GUST
05/27/01   WOODS                          MEASURED BY OKLAHOMA
                                          MESONET

0720 PM    BUFFALO                   OK   .75 INCH HAIL
05/27/01   HARPER                         REPORTED BY EOC

0710 PM    5 N SELMAN                OK   WIND DAMAGE
05/27/01   HARPER                         CARPORT DESTROYED AND STORM
                                          DOOR BLOWN AWAY
                                          PUBLIC REPORT

0745 PM    6 N MAY                   OK   WIND DAMAGE
05/27/01   HARPER                         POWER POLES SNAPPED AND
                                          TRACTOR TRAILER OVERTURNED
                                          REPORTED BY SPOTTER

0725 PM    2 S BUFFALO               OK   60 MPH WIND GUST
05/27/01   HARPER                         ESTIMATED BY SPOTTER

0730 PM    1 SW BUFFALO              OK   68 MPH WIND GUST
05/27/01   HARPER                         MEASURED BY OKLAHOMA
                                          MESONET

0700 PM    CHEROKEE                  OK   .88 INCH HAIL
05/27/01   ALFALFA                        REPORTED BY EOC

0721 PM    CHEROKEE                  OK   60 MPH WIND GUST
05/27/01   ALFALFA                        ESTIMATED BY EOC

0710 PM    1 SSW CHEROKEE            OK   62 MPH WIND GUST
05/27/01   ALFALFA                        MEASURED BY OKLAHOMA
                                          MESONET

LANE

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:08 PM CDTTornado WarningOUNHarper52 min
May 27, 7:26 PM CDTTornado WarningOUNAlfalfa34 min
May 27, 7:33 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward42 min
May 27, 7:50 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant55 min
May 27, 8:01 PM CDTSevere Thunderstorm WarningOUNMajor44 min
May 27, 8:15 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward30 min
May 27, 8:23 PM CDTSevere Thunderstorm WarningOUNWoods37 min
May 27, 8:28 PM CDTSevere Thunderstorm WarningOUNDewey, Roger Mills47 min
May 27, 8:40 PM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher50 min
May 27, 8:41 PM CDTSevere Thunderstorm WarningOUNBlaine, Major34 min
May 27, 8:50 PM CDTSevere Thunderstorm WarningOUNLogan40 min
May 27, 8:56 PM CDTSevere Thunderstorm WarningOUNCuster34 min
May 27, 9:00 PM CDTSevere Thunderstorm WarningOUNNoble, Payne30 min
May 27, 9:25 PM CDTSevere Thunderstorm WarningOUNWashita65 min
May 27, 9:26 PM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher, Logan, Oklahoma64 min
May 27, 9:26 PM CDTSevere Thunderstorm WarningOUNLincoln, Payne64 min
May 27, 9:56 PM CDTSevere Thunderstorm WarningOUNCaddo, Kiowa64 min
May 27, 9:59 PM CDTSevere Thunderstorm WarningOUNCleveland, Grady, McClain61 min
May 27, 10:22 PM CDTSevere Thunderstorm WarningOUNPottawatomie38 min
May 27, 10:22 PM CDTSevere Thunderstorm WarningOUNComanche53 min
May 27, 10:30 PM CDTSevere Thunderstorm WarningOUNLincoln, Oklahoma30 min
May 27, 10:32 PM CDTSevere Thunderstorm WarningOUNBeckham, Greer58 min
May 27, 10:43 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman62 min
May 27, 10:48 PM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Murray42 min
May 27, 10:48 PM CDTSevere Thunderstorm WarningOUNCleveland, Grady, McClain42 min
May 27, 10:48 PM CDTSevere Thunderstorm WarningOUNStephens42 min
May 27, 10:57 PM CDTSevere Thunderstorm WarningOUNCotton63 min
May 27, 11:01 PM CDTSevere Thunderstorm WarningOUNKiowa29 min
May 27, 11:10 PM CDTTornado WarningOUNCarter35 min
May 27, 11:13 PM CDTSevere Thunderstorm WarningOUNJefferson47 min
May 27, 11:29 PM CDTSevere Thunderstorm WarningOUNCarter, Love, Marshall61 min
May 27, 11:29 PM CDTSevere Thunderstorm WarningOUNGarvin, Stephens61 min
May 27, 11:29 PM CDTSevere Thunderstorm WarningOUNJohnston, Murray61 min
May 27, 11:46 PM CDTSevere Thunderstorm WarningOUNTillman29 min
May 27, 11:53 PM CDTSevere Thunderstorm WarningOUNBryan37 min
May 28, 12:00 AM CDTSevere Thunderstorm WarningOUNJefferson30 min
May 28, 12:21 AM CDTSevere Thunderstorm WarningOUNBryan, Johnston, Marshall54 min
May 28, 12:21 AM CDTSevere Thunderstorm WarningOUNAtoka54 min
May 28, 1:50 AM CDTSevere Thunderstorm WarningOUNCuster, Roger Mills40 min
May 28, 2:17 AM CDTSevere Thunderstorm WarningOUNWashita43 min
May 27, 11:23 PM CDTSevere Thunderstorm WarningOUNWichita, Wilbarger67 min
May 28, 12:01 AM CDTSevere Thunderstorm WarningOUNArcher, Baylor59 min
May 28, 12:01 AM CDTSevere Thunderstorm WarningOUNClay59 min
May 28, 12:29 AM CDTSevere Thunderstorm WarningOUNWichita46 min
May 28, 12:59 AM CDTSevere Thunderstorm WarningOUNArcher, Clay46 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.