Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 32, NWS Midland/Odessa, TX

July 18, 2002Brewster County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jul 18, 2002, 5:36 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 outline as issued.

The facts

Issued
Jul 18, 2002, 5:36 PM CDT (22:36 UTC)
Expired
Jul 18, 2002, 8:30 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Counties, with a storm outline in the text

County Brewster County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 10.6 hours before the alert went out and 228 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 2002-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1552 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 2002-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
1552 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
56 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 
WGUS54 KMAF 182236
FFWMAF
TXC043-190130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
534 PM CDT THU JUL 18 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BREWSTER COUNTY IN SOUTHWEST TEXAS

* UNTIL 830 PM CDT

* AT 532 PM CDT...WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
  PRODUCING VERY HEAVY RAINFALL 12 MILES NORTHEAST OF PERSIMMON
  GAP...NEAR PANTHER JUNCTION...AND JUST NORTH OF CASTOLON.  LITTLE
  MOVEMENT IS INDICATED.

BIG BEND NATIONAL PARK AND U.S. 385 BETWEEN PERSIMMON GAP AND
MARATHON WILL EXPERIENCE RAINFALL RATES OF 1 TO 3 INCHES PER HOUR.
WATER WILL RAPIDLY FILL NORMALLY DRY ARROYOS AND DRAWS.  CAMPERS AND
HIKERS SHOULD MOVE TO HIGHER GROUND NOW

LAT...LON 3011 10378 2926 10377 2898 10334 2900 10315
          2924 10288 2969 10271 2979 10236 3014 10286
1 follow-up statement
000 
WGUS74 KMAF 190013
FFSMAF
TXC043-190130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
713 PM CDT THU JUL 18 2002

...A FLASH FLOOD WARNING CONTINUES FOR BREWSTER COUNTY UNTIL 830 PM
CDT...

AT 711 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE VERY HEAVY RAINFALL 29 MILES SOUTHEAST OF MARATHON. THE 
STORM PRODUCING HEAVY RAINFALL WAS MOVING SLOWLY TO THE NORTHEAST.

AREAS SOUTH OF US 90 IN BREWSTER COUNTY WILL RECEIVE THE HEAVIEST 
RAINFALL WITH RATES OF 1 TO 3 INCHES PER HOUR IN SOME LOCATIONS.
DO NOT DRIVE ACROSS FLOODED ROADWAYS.  MOST FLASH FLOOD DEATHS OCCUR 
IN AUTOMOBILES.  WATER WILL CONTINUE TO FILL NORMALLY DRY ARROYOS 
AND DRAWS.  CAMPERS AND HIKERS SHOULD MOVE TO HIGHER GROUND NOW

LAT...LON 2986 10376 2930 10372 2906 10332 2916 10307
          2949 10291 2997 10250 3050 10325

Nearby

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

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.