Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 2, NWS Lubbock, TX

April 28, 1999Castro County, Texas

NWS Lubbock, TX issued this flash flood warning at Apr 28, 1999, 11:46 PM CDT for Castro 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 counties it named.

The facts

Issued
Apr 28, 1999, 11:46 PM CDT (04:46 UTC)
Expired
Apr 29, 1999, 3:00 AM CDT
In force
3 hr
Issued by
NWS Lubbock, TX
Area
Whole counties

County Castro County, TX

The radar

The Amarillo radar (KAMA), 93 km from the middle of the area, began a volume at 04:50 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 00:00Z, 4.8 hours before the alert went out and 93 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 1999-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 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 1999-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
941 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1298 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBB 290446
FFWLBB

TXC069-290800-

BULLETIN...EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
1146 PM CDT WED APR 28 1999

THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A

* FLOOD WARNING FOR...
  CASTRO COUNTY IN THE TEXAS PANHANDLE

* UNTIL 300 AM CDT

* AT 1140 PM CDT... SPOTTERS INDICATED A THUNDERSTORM WITH VERY HEAVY
  RAIN NEAR DIMMITT AND NAZARETH... MOVING SLOWLY NORTH.

* DEVELOPING THUNDERSTORMS WERE PRODUCING HEAVY RAIN OVER AREAS THAT
  RECEIVED 2-3 INCHES OF RAIN WEDNESDAY EVENING.
  UP TO A FOOT OF WATER WAS REPORTED OVER THE ROAD BETWEEN
  NAZARETH AND HART.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

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.

In the hours before

Special weather statement, Apr 28, 9:55 PM CDT, 1 hour 51 minutes before
TXZ021>044-290315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
955 PM CDT WED APR 28 1999

CANCEL SEVERE THUNDERSTORM WATCH FOR THE FOLLOWING WEST TEXAS
COUNTIES...

PARMER...CASTRO...BAILEY...LAMB...COCHRAN...HOCKLEY

THE THREAT OF SEVERE WEATHER HAS MOVED TO THE EAST.

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE REMAINDER OF
THE SOUTH PLAINS...EXTREME SOUTHEAST TEXAS PANHANDLE AND THE LOW
ROLLING PLAINS UNTIL 11 PM.

JV
Special weather statement, Apr 28, 9:55 PM CDT, 1 hour 51 minutes before
TXZ021>044-290315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
955 PM CDT WED APR 28 1999

CANCEL SEVERE THUNDERSTORM WATCH FOR THE FOLLOWING WEST TEXAS
COUNTIES...

PARMER...CASTRO...BAILEY...LAMB...COCHRAN...HOCKLEY

THE THREAT OF SEVERE WEATHER HAS MOVED TO THE EAST.

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE REMAINDER OF
THE SOUTH PLAINS...EXTREME SOUTHEAST TEXAS PANHANDLE AND THE LOW
ROLLING PLAINS UNTIL 11 PM.

JV

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 7:22 PM CDTFlash Flood WarningLUBCastro2 hr
Apr 28, 7:29 PM CDTSevere Thunderstorm WarningLUBDickens51 min
Apr 28, 8:20 PM CDTSevere Thunderstorm WarningLUBDickens45 min
Apr 28, 8:20 PM CDTSevere Thunderstorm WarningLUBFloyd, Hale40 min
Apr 28, 9:04 PM CDTSevere Thunderstorm WarningLUBMotley46 min
Apr 28, 9:26 PM CDTTornado WarningLUBFloyd, Motley34 min
Apr 28, 10:00 PM CDTSevere Thunderstorm WarningLUBBriscoe, Hall, Motley50 min
Apr 28, 10:34 PM CDTSevere Thunderstorm WarningLUBDickens46 min
Apr 29, 12:04 AM CDTFlash Flood WarningLUBDickens, Motley4 hr
Apr 29, 3:21 AM CDTFlash Flood WarningLUBHale, Lubbock3 hr
Apr 29, 4:40 AM CDTSevere Thunderstorm WarningLUBCrosby35 min
Apr 29, 5:16 AM CDTSevere Thunderstorm WarningLUBHale49 min
Apr 29, 5:21 AM CDTSevere Thunderstorm WarningLUBDickens, Kent49 min

Nearby

Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999

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.