Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 89, NWS Midland/Odessa, TX

July 22, 1999Brewster County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jul 22, 1999, 6:00 PM CDT for Brewster 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
Jul 22, 1999, 6:00 PM CDT (23:00 UTC)
Expired
Jul 22, 1999, 9:00 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Brewster County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.0 hours before the alert went out and 238 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, Del Rio, TX at 12:00Z on 1999-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1297 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, Del Rio, TX at 12:00Z on 1999-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939Sfc1 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
1297 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
552 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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The text

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

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 Midland/Odessa, TX wrote its last area forecast discussion before this flash flood warning went out at Jul 22, 3:05 PM CDT, 2 hours 55 minutes earlier.

Area forecast discussion, Jul 22, 3:05 PM CDT, 2 hours 55 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
305 PM CDT THU JUL 22 1999

CONVECTION UNDERWAY IN OROGRAPHICALLY FAVORED AREAS WHILE CU ACROSS
THE PLAINS LOOKING SOFT ATTM.  MODIFIED SOUNDINGS SUGGEST WEAK
CAP MAY HOLD WITH SLIGHTLY HIGHER LFCS VERSUS 24 HRS AGO. MEANWHILE
AUGUST LIKE PATTERN HAS BEEN SHOWING LITTLE CHANGE FROM DAY TO DAY
WITH...PRECIPITABLE WATER OVER 1/AN ABSENCE OF BOUNDARIES/ ELY MID
LEVEL FLOW. OTHER THAN SLIGHTLY WARMER TEMPS AS 1000-500MB THICKNESS
INCREASES NO SIGNIFICANT CHANGES MADE TO FCST. LATER SHIFTS WILL NEED
TO WATCH FOR A POTENTIAL CHANGE HOWEVER. AVN/MRF ARE RATHER
AGGRESSIVE BRINGING SURFACE TROF INTO W TX PLAINS THIS WEEKEND AS
PROGRESSIVE NRN STREAM SHRTWV TROF (CURRENTLY OFF W COAST)
DEEPENS SURFACE LOW IN NORTHERN PLAINS. FOR NOW WILL CONTINUE
EXTENDED FCST AS IS WITH SLIGHT CHANCE POPS ONLY.

THE PRELIMINARY GUIDANCE BELOW IS FOR COORDINATION PURPOSES ONLY.
OFFICIAL FORECASTS ARE CONTAINED WITHIN THE WEST TEXAS/SOUTHEASTERN
NEW MEXICO ZONE FORECAST.

MAF 69/94/69/94     20/20/20/20
LSA 67/94/69/94     20/20/20/20
E41 69/95/71/95     20/20/20/20
6R6 72/94/73/94     20/20/20/20
MRF 59/84/60/85     30/20/30/20
CNM 70/96/71/96     20/20/20/20

.MAF...
TX...NONE.
NM...NONE.

GPM

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.