Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 38, NWS Midland/Odessa, TX

May 11, 2004Pecos County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at May 11, 2004, 3:05 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 11, 2004, 3:05 PM CDT (20:05 UTC)
Expired: May 11, 2004, 6:00 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), 145 km from the middle of the area, began a volume at 20:06 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 12:00Z, 8.1 hours before the alert went out and 146 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 364 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1047 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMAF 112007
FFWMAF
TXC371-112300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
305 PM CDT TUE MAY 11 2004

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN PECOS COUNTY IN SOUTHWEST TEXAS

* UNTIL 600 PM CDT

* AT 258 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  FLASH FLOODING FROM A THUNDERSTORM 39 MILES WEST OF SHEFFIELD... 
  OR ABOUT 18 MILES SOUTHWEST OF BAKERSFIELD...MOVING EAST AT 10 
  MPH. ANOTHER SLOW MOVING THUNDERSTORM WAS LOCATED 30 MILES SOUTH
  OF FORT STOCKTON AND MOVING ALONG THE SAME PATH RESULTING IN
  THE THREAT OF FLASH FLOODING... PARTICULARLY ALONG FM 2023.

* LOCATIONS IMPACTED INCLUDE...
  CENTRAL AND EAST CENTRAL PECOS COUNTY.

TO REPORT FLOODING... CALL THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN MIDLAND AT 1 800 597 3220.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3060 10311 3078 10252 3097 10199 3066 10179
          3067 10215 3061 10215 3061 10238 3056 10245
          3050 10291

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 2:33 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	57 min
May 11, 4:16 PM CDT	Severe Thunderstorm Warning	MAF	Terrell	59 min
May 11, 4:42 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock	48 min
May 11, 5:14 PM CDT	Severe Thunderstorm Warning	MAF	Terrell	61 min
May 11, 5:29 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock	46 min
May 11, 6:01 PM CDT	Severe Thunderstorm Warning	MAF	Scurry	44 min
May 11, 6:19 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell	41 min

Nearby

Flash Flood Warnings in Texas, 2004 Every 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.