Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 39, NWS Lubbock, TX

June 21, 1999Hockley County, Lubbock County, Texas

NWS Lubbock, TX issued this flash flood warning at Jun 21, 1999, 11:43 PM CDT for Hockley County, Lubbock 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
Jun 21, 1999, 11:43 PM CDT (04:43 UTC)
Expired
Jun 22, 1999, 3:00 AM CDT
In force
3 hr
Issued by
NWS Lubbock, TX
Area
Whole counties

Counties Hockley County, TX, Lubbock County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 4.7 hours before the alert went out and 184 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 1999-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 90 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 1999-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
90 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
998 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:01 PM CDTFlash Flood WarningLUBBailey3 hr
Jun 21, 8:01 PM CDTSevere Thunderstorm WarningLUBHockley, Lamb34 min
Jun 21, 9:20 PM CDTFlash Flood WarningLUBBailey, Cochran, Hockley, Lamb3 hr
Jun 21, 11:43 PM CDTFlash Flood WarningLUBCochran, Yoakum3 hr
Jun 22, 2:42 AM CDTFlash Flood WarningLUBCochran, Hockley, Lubbock, Lynn, Terry, Yoakum3 hr

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.