Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 57, NWS Amarillo, TX

May 20, 2000Lipscomb County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 20, 2000, 8:32 PM CDT for Lipscomb County, Texas. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 20, 2000, 8:32 PM CDT (01:32 UTC)
Expired
May 20, 2000, 9:15 PM CDT
In force
43 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Lipscomb County, TX

The radar

The Dodge City radar (KDDC), 167 km from the middle of the area, began a volume at 01:36 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, 1.5 hours before the alert went out and 169 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, Dodge City, at 00:00Z on 2000-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 390 joules per kilogram.LCLEL10008507005003002001001 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, Dodge City, at 00:00Z on 2000-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.193958Sfc1 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
390 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
2575 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-5 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.

529 
WUUS54 KAMA 210135
SVRAMA
TXC295-210215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
832 PM CDT SAT MAY 20 2000

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LIPSCOMB COUNTY IN THE TEXAS PANHANDLE

* UNTIL 915 PM CDT

* AT 832 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A   SEVERE THUNDERSTORM 3 MILES NORTHWEST OF BOOKER...MOVING       
  SOUTHEAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  LIPSCOMB...BOOKER AND DARROUZETT

LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH
THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER.

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 20, 2:10 PM CDT, 6 hours 22 minutes earlier.

Area forecast discussion, May 20, 2:10 PM CDT, 6 hours 22 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
210 PM CDT SAT MAY 20 2000

WIND SHIFT/COOL FRONT IS A AHEAD OF SCHEDULE...WITH NONE OF THE
MODELS HAVING A GOOD HANDLE ON ITS POSITION OR SPEED. JUDGING FROM
SATELLITE IT SHOULD MOVE INTO THE NORTHWESTERN ZONES LATE
AFTERNOON/EARLY THIS EVENING AND ACROSS THE ENTIRE CWA OVERNIGHT.
BEST LLM AND INSTABILITY WILL STILL BE IN THE EASTERN ZONES SO WILL
KEEP SEVERE STORMS MENTION THERE. HOWEVER WITH FRONT HAVING ALREADY
BECOME ACTIVE ACROSS WRN KS/SE CO AND WITH THE EARLIER TIMING...THEIR
WILL BE INCREASED INSTABILITY SO WILL INCREASE POPS ACROSS FA
TONIGHT.

THE AIR MASS BEHIND THE FRONT IS QUITE MODIFIED AND TEMPS TOMORROW
WILL NOT BE MUCH COOLER. THIS ALONG WITH A LLJ FORECASTED OVER THE
PANHANDLES COULD SUPPORT ADDITIONAL TSTMS LATE SUNDAY
AFTERNOON/EVENING MAINLY EASTERN ZONES. BY MONDAY A STRENGTHENING CAP
SHOULD KEEP MOST CONVECTION CHANCES SUPPRESSED.

IN THE EXTENDED...TUESDAY AND WEDNESDAY HIGH PRESSURE WILL BE IN
PLACE FOR WARM AND DRY CONDITIONS. THURSDAY THE MODELS ARE NOT IN
AGREEMENT AND THE MRF IS INDICATING A SYSTEM DEVELOPING AND MOVING
INTO THE WESTERN U.S. WITH A SHORT WAVE MOVING OVER THE REGION FOR
SLIGHTLY COOLER TEMPS. ATTM NOT IMPRESSED WITH MOISTURE OR DYNAMICS
SO WILL LEAVE POPS OUT.

SOME PRELIMINARY NUMBERS:
AMA 52/82 55/92 58 520
DHT 51/82 52/91 53 500

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

ND

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 20, 9:21 PM CDTSevere Thunderstorm WarningAMAPotter54 min
May 20, 9:36 PM CDTSevere Thunderstorm WarningAMARandall54 min
May 20, 9:49 PM CDTSevere Thunderstorm WarningAMAArmstrong, Carson56 min
May 20, 10:40 PM CDTSevere Thunderstorm WarningAMAArmstrong50 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000

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.