Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 56, NWS Amarillo, TX

May 10, 2001Beaver County, Texas County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at May 10, 2001, 8:37 PM CDT for Beaver County, Texas County, Oklahoma. It was in force for 38 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: May 10, 2001, 8:37 PM CDT (01:37 UTC)
Expired: May 10, 2001, 9:15 PM CDT
In force: 38 min
Issued by: NWS Amarillo, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Beaver County, OK, Texas County, OK

The radar

The Dodge City radar (KDDC), 147 km from the middle of the area, began a volume at 01:41 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.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 1.6 hours before the alert went out and 152 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: 1454 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 2134 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KAMA 110139
SVRAMA
OKC007-139-110215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
837 PM CDT THU MAY 10 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN TEXAS COUNTY IN THE OKLAHOMA PANHANDLE
  WESTERN BEAVER COUNTY IN THE OKLAHOMA PANHANDLE

* UNTIL 915 PM CDT

* AT 836 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  CLUSTER OF SEVERE THUNDERSTORMS NEAR THE COMMUNITY OF ADAMS OR
  ABOUT 19 MILES EAST OF GUYMON...MOVING EAST AT 15 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  ADAMS...BAKER...BOYD...BRYANS CORNER...HARDESTY...HOOKER AND TURPIN

DAMAGING WINDS IN EXCESS OF 55 MPH...HAIL UP THREE-QUARTERS OF AN
INCH...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE
COVER IN A SUBSTANTIAL SHELTER.

LAT...LON 3691 10127 3660 10129 3656 10077 3690 10078

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 10, 6:51 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, May 10, 6:51 PM CDT, 1 hour 46 minutes before

TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
651 PM CDT THU MAY 10 2001

UPDATED ZNS TO GO WITH CATEGORICAL POPS IN NRN ZNS. FAIR AMOUNT OF
COVERAGE ATTM ACROSS NW ZNS...DEPICTED WELL BY 18Z MESOETA WHICH
TRANSLATES THIS ACTIVITY MORE EWD THIS EVE. STORMS LOOK TO BE A BIT
LESS ORGANIZED THIS EVE THAN LAST...POSSIBLY DUE TO DRY MID LEVEL
AIR APPARENT ON 12Z AMA/18Z DDC SOUNDINGS. GOOD DIRECTIONAL
SHEAR EVIDENT HOWEVER WINDS ALOFT ONLY RUNNING AROUND 20KT.
STRONG HEATING THIS AFTN HAS RESULTED IN LARGE SFC DPT DEPRESSIONS SO
DOWNBURST POTENTIAL WILL CONTINUE THROUGH EVE WITH ANY STORMS.
MOISTURE/WIND PROFILES EXPECTED TO CHANGE LATER TONIGHT AS CDFNT
MOVES S INTO AREA. GDA PROFILER SHOWING NE WINDS TO AROUND 3KM
ALREADY WITH STRONGER TEMP GRADIENT FURTHER N ACROSS E CNTRL CO.
INITIAL WINDSHIFT/OUTFLOW FM SE CO/SW KS ALSO EXPECTED TO HELP DRIVE
ADDITIONAL CONVECTION LATE THIS EVE AS IT ENCOUNTERS MORE MOIST AIR
ACROSS ERN ZNS AND DEVELOPING LLJ.

.AMA...
TX...NONE.
OK...NONE.

COBB

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.