Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 9, NWS Midland/Odessa, TX

September 7, 2007Gaines County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Sep 7, 2007, 9:06 PM CDT for Gaines 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
Sep 7, 2007, 9:06 PM CDT (02:06 UTC)
Expired
Sep 8, 2007, 12:00 AM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Counties, with a storm outline in the text
Flood severity
None

County Gaines County, TX

The radar

The Midland/Odessa radar (KMAF), 108 km from the middle of the area, began a volume at 02:06 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, 2.1 hours before the alert went out and 107 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 2007-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 855 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 2007-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 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
855 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
2302 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
41 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 080224
FFWMAF
TXC165-080500-
/X.NEW.KMAF.FF.W.0009.070908T0206Z-070908T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
921 PM CDT FRI SEP 7 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

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

* UNTIL MIDNIGHT CDT

* AT 921 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  A THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING FROM SEMINOLE
  TO SEAGRAVES...MOVING NORTHEAST AT 10 MPH. RADAR ESTIMATES OF UP 
  TO 1.5 INCHES OF RAINFALL PER HOUR OVER WESTERN GAINES COUNTY CAN 
  BE SEEN. MOTORISTS TRAVELING ON U.S. HIGHWAY 62/180...TEXAS STATE
  HIGHWAY 181...TEXAS STATE HIGHWAY 214...OR U.S. 385 SHOULD BE 
  PREPARED TO ENCOUNTER HEAVY RAIN AND MINOR FLOODING.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL AFFECT THE FOLLOWING
LOCATIONS...
  SEMINOLE...
  SEAGRAVES...
  LOOP...

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE
ACROSS FLOODED ROADS.

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.

LAT...LON 3294 10304 3295 10236 3253 10238 3253 10304
TIME...MOT...LOC 0206Z 225DEG 9KT 3275 10276

$$
2 follow-up statements
000 
WGUS74 KMAF 080310
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1008 PM CDT FRI SEP 7 2007

TXC165-080500-
/X.CON.KMAF.FF.W.0009.000000T0000Z-070908T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GAINES-
1008 PM CDT FRI SEP 7 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
GAINES COUNTY...

AT 1005 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LARGE THUNDERSTORM ACROSS ALL OF EASTERN GAINES COUNTY.
THIS STORM IS BELIEVED TO BE PRODUCING FLASH FLOODING.  THE CENTER OF 
THIS STORM WAS LOCATED 6 MILES NORTHEAST OF FAIRVIEW...OR 11 MILES EAST
OF SEMINOLE...MOVING EAST AT 10 MPH.  RADAR ESTIMATES THAT BETWEEN TWO 
AND THREE INCHES OF RAIN HAS FALLEN OVER PORTIONS OF NORTHEAST GAINES
COUNTY DURING THE PAST HOUR.

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.

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE
ACROSS FLOODED ROADS.

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.

LAT...LON 3294 10304 3295 10236 3253 10238 3253 10304
TIME...MOT...LOC 0308Z 252DEG 12KT 3276 10245

$$
000 
WGUS74 KMAF 080447
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1140 PM CDT FRI SEP 7 2007

TXC165-080500-
/X.CON.KMAF.FF.W.0009.000000T0000Z-070908T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GAINES-
1140 PM CDT FRI SEP 7 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
GAINES COUNTY...

AT 1135 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING. THIS STORM WAS
LOCATED 10 MILES NORTHWEST OF SEMINOLE...MOVING EAST AT 10 MPH. RADAR
ESTIMATES OF 3 INCHES OVER THE EASTERN PORTION OF THE COUNTY HAS BEEN
SEEN. NEW DEVELOPMENT OVER WESTERN GAINES COUNTY COULD LEAD TO ADDITIONAL
RAINFALL AMOUNTS OF 1 INCH. FLASH FLOODING IN THE CITY OF SEMINOLE AND OTHER
SMALL TOWNS WILL BE POSSIBLE.

FLASH FLOODING OF CREEKS AND STREAMS... STREETS AND UNDERPASSES...LOW
WATER CROSSINGS... AND LOW LYING FARMLAND IS LIKELY. DO NOT DRIVE
ACROSS FLOODED ROADS.

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.

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.

LAT...LON 3294 10304 3295 10236 3253 10238 3253 10304
TIME...MOT...LOC 0440Z 252DEG 12KT 3285 10210

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 10:07 PM CDTFlash Flood WarningMAFDawson3 hr
Sep 7, 10:37 PM CDTFlash Flood WarningMAFAndrews3 hr
Sep 7, 11:58 PM CDTFlash Flood WarningMAFGaines3 hr
Sep 8, 1:19 AM CDTFlash Flood WarningMAFDawson4 hr
Sep 8, 4:00 PM CDTSevere Thunderstorm WarningMAFBrewster45 min
Sep 8, 4:07 PM CDTSevere Thunderstorm WarningMAFCulberson53 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.