Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 52, NWS Midland/Odessa, TX

March 29, 2007Dawson County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Mar 29, 2007, 1:04 AM CDT for Dawson County, Texas. It was in force for 4 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
Mar 29, 2007, 1:04 AM CDT (06:04 UTC)
Expired
Mar 29, 2007, 5:00 AM CDT
In force
4 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Dawson County, TX

The radar

The Midland/Odessa radar (KMAF), 92 km from the middle of the area, began a volume at 06:06 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 00:00Z, 6.1 hours before the alert went out and 91 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 2007-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2254 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 2007-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939587897Sfc1 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
2254 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
1208 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMAF 290608
FFWMAF
TXC115-291000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
104 AM CDT THU MAR 29 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAWSON COUNTY IN WEST TEXAS...

* UNTIL 500 AM CDT

* AT 1258 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
  THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL ACROSS THE COUNTY.
  AT 1255 PM CDT...DOPPLER RADAR HAD ESTIMATED RAINFALL RATES
  OF OVER 2 INCHES PER HOUR ALONG HIGHWAY 87 IN LAMESA AND NORTH
  OF LAMESA...AND ALONG HIGHWAY 180. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WELCH...
  PRIDE...GRANDVIEW...LAMESA...KEY..WELCH

ADDITIONAL RAINFALL IS EXPECTED WHICH COULD INCREASE THE POTENTIAL
FOR FLOODING IN THE WARNED AREA.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO
HIGHER GROUND.

MOST FLOODING DEATHS ARE PREVENTABLE... AND MANY OCCUR WHEN MOTORISTS
DRIVE ACROSS FLOODED ROADWAYS. IT IS NEVER SAFE TO DRIVE ON FLOODED
ROADS. IT ONLY TAKES A FEW INCHES OF RAPIDLY FLOWING WATER TO QUICKLY
CARRY AWAY YOUR VEHICLE. TURN AROUND... DONT DROWN.

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

LAT...LON 3254 10219 3254 10172 3293 10170 3293 10218

$$
1 follow-up statement
000 
WGUS74 KMAF 290640
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
135 AM CDT THU MAR 29 2007

TXC115-291000-
DAWSON-
135 AM CDT THU MAR 29 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
DAWSON COUNTY...

AT 125 AM CDT...A TRAINED WEATHER SPOTTER REPORTED WATER UP
TO 6 INCHES OVER THE ROAD ON HIGHWAY 87 ON THE NORTH PORTION
OF THE TOWN OF LAMESA NEAR THE WAL MART. IN ADDITION LAW ENFORCEMENT
REPORTED WATER OVER THE ROADWAY ON BRYANT STREET NEAR THE PARK 
ON THE SOUTH SIDE OF LAMESA. 

AT 115 AM CDT DOPPLER RADAR HAD ESTIMATED RAINFALL RATES OF OVER
AN INCH PER HOUR SINCE 1015 PM CDT LAST EVENING ALONG HIGHWAY 180
THROUGH THE COUNTY AND ALONG HIGHWAY 87 NORTH OF LAMESA TO THE 
COUNTY LINE.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WELCH...
PUNKIN CENTER...SAND...HANCOCK...LAMESA...KEY...GRANDVIEW AND ARVANA

MOST FLOODING DEATHS ARE PREVENTABLE... AND MANY OCCUR WHEN MOTORISTS
DRIVE ACROSS FLOODED ROADWAYS. IT IS NEVER SAFE TO DRIVE ON FLOODED
ROADS. IT TAKES ONLY A FEW INCHES OF RAPIDLY FLOWING WATER TO QUICKLY
CARRY AWAY YOUR VEHICLE. TURN AROUND... DONT DROWN.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLOODING IS OBSERVED. MOVE TO
HIGHER GROUND.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT THURSDAY MORNING
FOR SOUTHEAST NEW MEXICO.

LAT...LON 3254 10219 3254 10172 3293 10170 3293 10218

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 9:13 PM CDTSevere Thunderstorm WarningMAFGaines62 min
Mar 28, 10:39 PM CDTSevere Thunderstorm WarningMAFAndrews51 min
Mar 28, 10:54 PM CDTSevere Thunderstorm WarningMAFGaines44 min
Mar 28, 10:55 PM CDTSevere Thunderstorm WarningMAFGaines50 min
Mar 28, 11:03 PM CDTTornado WarningMAFAndrews42 min
Mar 28, 11:17 PM CDTSevere Thunderstorm WarningMAFCrane, Ector58 min
Mar 28, 11:41 PM CDTSevere Thunderstorm WarningMAFAndrews, Dawson, Gaines, Martin64 min
Mar 28, 11:48 PM CDTSevere Thunderstorm WarningMAFCrane, Pecos57 min
Mar 28, 11:50 PM CDTSevere Thunderstorm WarningMAFMartin, Midland55 min
Mar 29, 12:20 AM CDTSevere Thunderstorm WarningMAFUpton55 min
Mar 29, 12:42 AM CDTSevere Thunderstorm WarningMAFMidland63 min
Mar 29, 12:44 AM CDTSevere Thunderstorm WarningMAFDawson45 min
Mar 29, 12:44 AM CDTSevere Thunderstorm WarningMAFCrane61 min
Mar 29, 12:48 AM CDTSevere Thunderstorm WarningMAFBorden57 min
Mar 29, 1:09 AM CDTSevere Thunderstorm WarningMAFGlasscock66 min
Mar 29, 1:14 AM CDTSevere Thunderstorm WarningMAFUpton61 min
Mar 29, 1:24 AM CDTTornado WarningMAFGlasscock34 min
Mar 29, 1:25 AM CDTTornado WarningMAFUpton53 min
Mar 29, 1:58 AM CDTSevere Thunderstorm WarningMAFReagan62 min

Nearby

Flash Flood Warnings in Texas, 2007Every flash flood warning in 2007

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.