Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 4, NWS Midland/Odessa, TX

May 12, 2003Brewster County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at May 12, 2003, 8:11 PM CDT for Brewster County, Texas. It was in force for 2 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
May 12, 2003, 8:11 PM CDT (01:11 UTC)
Expired
May 12, 2003, 10:15 PM CDT
In force
2 hr
Issued by
NWS Midland/Odessa, TX
Area
Counties, with a storm outline in the text

County Brewster County, TX

The radar

The Midland/Odessa radar (KMAF), 231 km from the middle of the area, began a volume at 01:15 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

Midland Regional, TX (KMAF), launched 00:00Z, 1.2 hours before the alert went out and 231 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, Midland Regional, TX at 00:00Z on 2003-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 451 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, Midland Regional, TX at 00:00Z on 2003-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
451 J/kg
Mixed-layer CIN
-240 J/kg
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMAF 130114
FFWMAF
TXC043-130315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
811 PM CDT MON MAY 12 2003

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

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

* UNTIL 1015 PM CDT

* AT 811 PM CDT...WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
  PRODUCING VERY HEAVY RAINFALL 5 MILES SOUTH OF MARATHON...MOVING   
  SOUTHEAST AT 20 MPH.  OTHER THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN WERE LOCATED ALONG U.S. HIGHWAY 90 20 MILES EAST OF
  MARATHON...AND 20 MILES SOUTH OF ALPINE...WEST OF STATE HIGHWAY
  118.

JUST AFTER 800 PM...STORM SPOTTERS AND TEXAS DPS REPORTED A FOOT 
OF WATER RUNNING OVER U.S. HIGHWAY 80 25 MILES EAST OF ALPINE...OR 
ABOUT 10 MILES WEST OF MARATHON.  
  
DO NOT DRIVE ACROSS FLOODED ROADWAYS. MOST FLASH FLOOD DEATHS OCCUR
IN AUTOMOBILES.  BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS DIFFICULT 
TO RECOGNIZE FLOOD DANGERS. DO NOT DRIVE INTO FLOODED AREAS.

LAT...LON 3017 10379 2988 10357 2979 10318 3013 10271
          3043 10313 3038 10352

$$

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 7:14 PM CDTSevere Thunderstorm WarningMAFBrewster61 min
May 12, 8:15 PM CDTSevere Thunderstorm WarningMAFBrewster60 min
May 12, 9:15 PM CDTSevere Thunderstorm WarningMAFBrewster60 min
May 12, 10:18 PM CDTSevere Thunderstorm WarningMAFBrewster42 min

Nearby

Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003

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.