Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 42, NWS Midland/Odessa, TX

May 20, 2004Pecos County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at May 20, 2004, 7:08 PM CDT for Pecos 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
May 20, 2004, 7:08 PM CDT (00:08 UTC)
Expired
May 20, 2004, 10:15 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Counties, with a storm outline in the text

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 161 km from the middle of the area, began a volume at 00:08 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, 0.1 hours before the alert went out and 161 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 2004-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1343 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2004-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1343 J/kg
Mixed-layer CIN
-192 J/kg
Mixed-layer LCL
1437 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
59 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 210012
FFWMAF
TXC371-210315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
708 PM CDT THU MAY 20 2004

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS

* UNTIL 1015 PM CDT

* AT 703 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED    
  A THUNDERSTORM WITH VERY HEAVY RAIN CAPABLE OF PRODUCING FLASH     
  FLOODING 20 MILES SOUTHWEST OF BELDING...OR ABOUT 29 MILES         
  NORTHEAST OF ALPINE. THIS STORM WAS NEARLY STATIONARY.

FLASH FLOODING OF CREEKS AND STREAMS...LOW WATER CROSSINGS... 
NORMALLY DRY WASHES AND ARROYOS IS LIKELY. DO NOT DRIVE ACROSS 
FLOODED ROADS. FLASH FLOODING ALONG COYANOSA DRAW MAY OCCUR. DO NOT 
ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. 

LAT...LON 3078 10353 3054 10322 3086 10296 3101 10309
          3103 10332

$$
1 follow-up statement
000 
WGUS74 KMAF 210149
FFSMAF
TXC371-210315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
848 PM CDT THU MAY 20 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 1015 PM CDT FOR WEST CENTRAL
PECOS COUNTY...

AT 838 PM CDT...THUNDERSTORMS REMAIN IN THE WARNED AREA ALTHOUGH THE 
COVERAGE HAS DECREASED. VERY HEAVY RAINS BETWEEN 600 AND 730 PM THIS 
EVENING WEST OF HIGHWAY 67 HAVE LIKELY RESULTED IN FLOODING AND 
FLASH FLOODING IN RURAL AREAS OF WEST CENTRAL PECOS COUNTY SOUTHWEST 
OF FORT STOCKTON. COYANOSA DRAW IS EXPECTED TO RUNNING WITH WATER AND  
LOW WATER CROSSINGS MAY BE FLOODED. ADDITIONAL STORMS MAY MOVE INTO 
THE WARNED AREA FROM THE SOUTH BRINGING ADDITIONAL HEAVY RAIN.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLASH FLOODING. DO NOT DRIVE INTO AREAS WHERE WATER 
COVERS THE ROADWAY. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO 
HIGHER GROUND.

LAT...LON 3078 10353 3054 10322 3086 10296 3101 10309
          3103 10332

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 7:36 PM CDTSevere Thunderstorm WarningMAFBrewster54 min
May 20, 10:23 PM CDTFlash Flood WarningMAFPecos5 hr

Nearby

Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004

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.