Alert archive / Texas / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 21, NWS Lubbock, TX

April 18, 2005Briscoe County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 18, 2005, 6:25 PM CDT for Briscoe County, Texas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 18, 2005, 6:25 PM CDT (23:25 UTC)
Expired
Apr 18, 2005, 7:30 PM CDT
In force
65 min
Issued by
NWS Lubbock, TX
Area
Counties, with a storm outline in the text

County Briscoe County, TX

The radar

The Amarillo radar (KAMA), 86 km from the middle of the area, began a volume at 23:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 18, 3:10 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 85 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 12:00Z on 2005-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 59 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2005-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 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
59 J/kg
Mixed-layer CIN
-319 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
237 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 KLUB 182330
SVRLUB
TXC045-190030-
/O.NEW.KLUB.SV.W.0021.050418T2325Z-050419T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
625 PM CDT MON APR 18 2005

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BRISCOE COUNTY IN THE PANHANDLE OF TEXAS

* UNTIL 730 PM CDT

* AT 624 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  A LINE OF SEVERE THUNDERSTORMS LOCATED FROM 12 MILES NORTHEAST   OF   
  SILVERTON TO 8 MILES SOUTH OF MACKENZIE RESERVOIR. HAIL UP TO THE SIZE 
  OF QUARTERS WILL BE POSSIBLE. THESE STORMS WERE MOVING TO THE EAST 
  NORTHEAST AT 10 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE VALLEY             
  SCHOOLS...CAPROCK CANYON STATE PARK...SILVERTON AND QUITAQUE.

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

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 7 4 5 1 2 9 0.

LAT...LON 3471 10145 3432 10145 3433 10096 3473 10096

$$
1 follow-up statement
000 
WWUS54 KLUB 182351
SVSLUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
649 PM CDT MON APR 18 2005

TXC045-190030-
/O.CON.KLUB.SV.W.0021.000000T0000Z-050419T0030Z/
BRISCOE TX-
649 PM CDT MON APR 18 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 730 PM CDT FOR
BRISCOE COUNTY...

AT 647 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING
HAIL UP TO GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 8 MILES 
NORTHWEST OF CAPROCK CANYON STATE PARK...OR 5 MILES NORTHEAST OF 
SILVERTON...MOVING EAST AT 20 MPH.

LOCATIONS NEAR THE PATH OF THIS STORM ARE RURAL AREAS NORTHEAST OF 
SILVERTON ALONG HIGHWAY 256. THIS STORM MAY ALSO MOVE NEAR CAPROCK 
CANYON STATE PARK.


DESTRUCTIVE HAIL CAN BE EXPECTED WITH THIS STORM...TAKE COVER NOW. GO
TO THE LOWEST FLOOR OF A STURDY BUILDING AND AVOID WINDOWS

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 7 4 5 1 2 9 0.

LAT...LON 3471 10145 3432 10145 3433 10096 3473 10096

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 7:39 PM CDTSevere Thunderstorm WarningLUBParmer66 min
Apr 18, 3:18 PM CDTSevere Thunderstorm WarningLUBBailey, Parmer57 min
Apr 18, 4:15 PM CDTSevere Thunderstorm WarningLUBParmer45 min
Apr 18, 4:37 PM CDTSevere Thunderstorm WarningLUBCastro68 min
Apr 18, 6:13 PM CDTSevere Thunderstorm WarningLUBHale47 min
Apr 18, 6:16 PM CDTSevere Thunderstorm WarningLUBSwisher59 min

Nearby

Severe Thunderstorm Warnings in Texas, 2005Every severe thunderstorm warning in 2005

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.