Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 182, NWS Midland/Odessa, TX

August 17, 2007Mitchell County, Scurry County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Aug 17, 2007, 10:51 PM CDT for Mitchell County, Scurry County, Texas. It was in force for 6 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
Aug 17, 2007, 10:51 PM CDT (03:51 UTC)
Expired
Aug 18, 2007, 4:45 AM CDT
In force
6 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

Counties Mitchell County, TX, Scurry County, TX

The radar

The San Angelo radar (KSJT), 135 km from the middle of the area, began a volume at 03:51 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, 3.9 hours before the alert went out and 136 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 2007-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 83 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 2007-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -64 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
83 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
602 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-64 m²/s²
0-3 km storm-relative helicity
-16 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 180354
FFWMAF
TXC335-415-180945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1051 PM CDT FRI AUG 17 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SCURRY COUNTY IN WEST TEXAS...
  MITCHELL COUNTY IN WEST TEXAS...

* UNTIL 445 AM CDT

* AT 1042 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  BANDS OF VERY HEAVY RAINFALL CONTINUING TO MOVE NORTH AT 15 TO 20
  MPH ACROSS MUCH OF MITCHELL AND SCURRY COUNTIES. RADAR ESTIMATES
  THAT 1.50 TO 2 INCHES OF RAIN HAS FALLEN ACROSS MOST OF BOTH 
  COUNTIES THIS EVENING...WITH ISOLATED AMOUNTS BETWEEN 3 AND 4 
  INCHES. ADDITIONAL HEAVY RAINS ARE LIKELY AS ADDITIONAL BANDS
  OF HEAVY RAIN MOVE NORTH OVERNIGHT. 

* THE THUNDERSTORM PRODUCING VERY HEAVY RAIN WILL AFFECT THE
  FOLLOWING LOCATIONS...
  SNYDER...
  COLORADO CITY...
  HERMLEIGH...
  FLUVANNA...
  WESTBROOK...
  LORAINE...

EXCESSIVE RUNOFF FROM THE HEAVY RAINS WILL LIKELY CONTINUE TO CAUSE 
FLASH FLOODING OF CREEKS...STREAMS...BAR DITCHES...CULVERTS...CITY 
STREETS...AND OTHER LOW LYING AREAS THIS EVENING. 

MOST FLOODING DEATHS ARE PREVENTABLE...AND MANY OCCUR WHEN MOTORISTS 
DRIVE ACROSS FLOODED ROADWAYS. 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.

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 3208 10067 3209 10117 3292 10119 3295 10117
      3297 10065
TIME...MOT...LOC 0351Z 161DEG 17KT 3239 10104

$$
1 follow-up statement
000 
WGUS74 KMAF 180645
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
141 AM CDT SAT AUG 18 2007

TXC335-415-180945-
SCURRY-MITCHELL-
141 AM CDT SAT AUG 18 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
MITCHELL AND SCURRY COUNTIES...

AT 136 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT HEAVY RAIN ACROSS MUCH OF SCURRY COUNTY.  MOST OF THE HEAVY RAIN 
HAS MOVED OUT OF MITCHELL COUNTY... BUT LIGHT RAIN CONTINUES TO COVER
THE ENTIRE COUNTY.  THE HEAVIEST RAINFALL WAS DETECT 5 MILES NORTH OF 
SNYDER...MOVING NORTH AT 15 MPH.  FLOODING OF COUNTY ROADS CAN BE 
EXPECTED OVERNIGHT.

THE THUNDERSTORM PRODUCING VERY HEAVY RAIN WILL AFFECT THE FOLLOWING
LOCATIONS... SNYDER... DERMOTT AND FLUVANNA.

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.

LAT...LON 3208 10067 3209 10117 3292 10119 3295 10117
      3297 10065
TIME...MOT...LOC 0641Z 160DEG 27KT 3293 10101

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 7:40 PM CDTFlash Flood WarningMAFGlasscock, Howard4 hr
Aug 17, 7:56 PM CDTFlash Flood WarningMAFMitchell, Scurry3 hr
Aug 17, 11:42 PM CDTFlash Flood WarningMAFBorden6 hr
Aug 17, 11:52 PM CDTFlash Flood WarningMAFHoward3 hr

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.