Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 18, NWS Lubbock, TX

October 25, 2000Garza County, Texas

NWS Lubbock, TX issued this flash flood warning at Oct 25, 2000, 7:48 AM CDT for Garza County, Texas. It was in force for 3 hr. 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: Oct 25, 2000, 7:48 AM CDT (12:48 UTC)
Expired: Oct 25, 2000, 10:45 AM CDT
In force: 3 hr
Issued by: NWS Lubbock, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Garza County, TX

The radar

The Lubbock radar (KLBB), 73 km from the middle of the area, began a volume at 12:50 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 0.8 hours before the alert went out and 235 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: 679 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLUB 251251
FFWLUB
TXC169-251545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
748 AM CDT WED OCT 25 2000

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GARZA COUNTY IN NORTHWEST TEXAS

* UNTIL 1045 AM CDT

* AT 745 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN 5 MILES WEST OF JUSTICEBURG...OR ABOUT 12 MILES SOUTHEAST
  OF POST...MOVING NORTHEAST AT 20 MPH. MORE THUNDERSTORMS WITH VERY
  HEAVY RAIN OVER NORTHERN DAWSON AND BORDEN COUNTIES WILL MOVE INTO
  GARZA COUNTY BY 9 AM.

* HEAVY RAINS HAVE ALREADY OCCURRED OVER SOUTHERN PORTIONS OF
  GARZA COUNTY WITH ESTIMATES OF OVER 3 INCHES BETWEEN POST AND
  THE BORDEN COUNTY LINE. MORE RAIN WILL FALL OVER THIS SAME
  AREA WHICH WILL BECOME RUNOFF DUE TO THE SATURATED GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
LUBBOCK.

LAT...LON 3298 10156 3296 10106 3338 10104 3338 10148

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lubbock, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 25, 3:15 AM CDT, 4 hours 33 minutes earlier.

Area forecast discussion, Oct 25, 3:15 AM CDT, 4 hours 33 minutes before

SOUTH PLAINS AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LUBBOCK TX
315 AM CDT WED OCT 25 2000

MORE RAINFALL LIKELY ACROSS THE CENTRAL SOUTH PLAINS AND LOW ROLLING
PLAINS. A SHORTWAVE LOCATED NEAR THE FOUR CORNERS IS PROGGED TO
TRANSLATE ACROSS NEW MEXICO THROUGH THIS MORNING AND INTERACT WITH
THE SURFACE TROUGH/FRONT AND LOW LEVEL MOISTURE. DYNAMICS LOOK
FAVORABLE FOR MORE THUNDERSTORMS TO DEVELOP...POSSIBLY SEVERE. SEE
SWODY1 FOR MORE DETAILS. LOCALLY HEAVY RAIN WILL AGAIN BE POSSIBLE
TODAY...ESPECIALLY EAST OF THE CAPROCK. TONIGHT...WILL BEGIN TO
TAPER OFF PRECIP CHANCES ACROSS THE WEST AND CENTRAL PARTS OF THE
FA. HOWEVER...WILL CONTINUE WITH HIGHER CHANCES EASTERN SECTIONS
WHERE DYNAMICS AND DEEPER MOISTURE REMAIN MORE FAVORABLE.

THURSDAY...AS THE UPPER LOW OFF THE WEST COAST DIVES SOUTH...A SORT
OF BREAK IN THE ACTION EXPECTED AS SHORTWAVE RIDGE INFLUENCES THE
LOWEST POPS IN THE SHORT TERM FORECAST. BY THURSDAY NIGHT...UPPER FLOW
BECOMES DIFFLUENT ONCE AGAIN WITH DISTURBANCES ROUNDING THE BASE OF
THE UPPER LOW AND THE SFC TROUGH CLOSE TO THE FA. THIS WILL BRING IN
HIGHER CHANCES FOR RAIN STARTING THURSDAY EVENING.

IN THE EXTENDED...ONLY CHANGE WILL BE MADE TO INCREASE FRIDAY/S POPS
TO CHANCE OF STORMS. TEMPS LOOK ON TRACK.

***PRELIMINARY***

FRIONA     68/51/70/49 4-25
TULIA      67/53/70/52 5125
CHILDRESS  70/57/74/55 8524
BROWNFIELD 68/55/70/55 5124x
LUBBOCK    67/56/70/55 5125
ASPERMONT  73/59/75/57 9834

.LUB...FLASH FLOOD WATCH TXZ025-026-031-032-037-038-043-044 UNTIL
700 AM CDT.
AC

In the hours before

Special weather statement, Oct 25, 6:00 AM CDT, 1 hour 48 minutes before

TXZ021>044-251630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
600 AM CDT WED OCT 25 2000

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR THE SOUTH
PLAINS AND THE LOW ROLLING PLAINS. THE SLIGHT RISK AREA IS
GENERALLY ALONG AND EAST OF A LINE FROM PAMPA TO LOCKNEY TO LUBBOCK
TO ODESSA. THIS INCLUDES THE LUBBOCK METRO AREA.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT
ACROSS THE SOUTH PLAINS AND THE LOW ROLLING PLAINS. A FEW
THUNDERSTORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS
BEING THE PRIMARY THREATS.

SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON OR EVENING.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 10:44 AM CDT	Flash Flood Warning	LUB	Garza	106 min
Oct 25, 12:54 PM CDT	Flash Flood Warning	LUB	Kent	3 hr
Oct 25, 4:05 PM CDT	Flash Flood Warning	LUB	Garza, Kent	3 hr

Nearby

Flash Flood Warnings in Texas, 2000 Every flash flood 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.