Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 3, NWS Midland/Odessa, TX

August 24, 2007Reeves County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Aug 24, 2007, 8:59 PM CDT for Reeves 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 outline as issued.

The facts

Issued: Aug 24, 2007, 8:59 PM CDT (01:59 UTC)
Expired: Aug 25, 2007, 1:00 AM CDT
In force: 4 hr
Issued by: NWS Midland/Odessa, TX
Area: Counties, with a storm outline in the text
Flood severity: None

County Reeves County, TX

The radar

The Midland/Odessa radar (KMAF), 170 km from the middle of the area, began a volume at 02:00 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, 2.0 hours before the alert went out and 169 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: 1475 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 2291 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMAF 250203
FFWMAF
TXC389-250600-
/X.NEW.KMAF.FF.W.0003.070825T0159Z-070825T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
859 PM CDT FRI AUG 24 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN REEVES COUNTY IN SOUTHWEST TEXAS...

* UNTIL 100 AM CDT

* AT 855 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  SLOW MOVING SHOWERS AND THUNDERSTORMS CAPABLE OF PRODUCING VERY
  HEAVY RAINFALL OVER WESTERN REEVES COUNTY. HEAVY RAINS HAVE MOVED
  OVER PORTIONS OF WESTERN REEVES CONTINUOUSLY SINCE ABOUT 600 PM 
  CDT. OVER 4 INCHES OF RAIN HAS LIKELY FALLEN ACROSS PORTIONS OF
  WESTERN REEVES COUNTY...GENERALLY ACROSS RURAL LOCATIONS ALONG
  AND SOUTH OF FARM TO MARKET ROAD 2119. HEAVY RAINS ALONG LOCAL
  DRAWS AND CREEKS MAY CAUSE FLASH FLOODING ALONG FARM TO MARKET
  ROAD 2119...AND LOCAL COUNTY ROADS OF WESTERN REEVES COUNTY. 

* THE POTENTIAL FOR FLASH FLOODING WILL AFFECT THE FOLLOWING
  LOCATIONS...
  FARM TO MARKET ROAD 2119...
  RURAL COUNTY ROADS IN WESTERN REEVES COUNTY...

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. MOTORISTS SHOULD NEVER ATTEMPT TO CROSS A FLOODED OR
POLICE BARRICADED ROADWAY. THE SAFEST COURSE OF ACTION...TURN 
AROUND...DONT DROWN.

LAT...LON 3174 10370 3136 10370 3109 10409 3140 10408
      3144 10406 3180 10403
TIME...MOT...LOC 0159Z 240DEG 3KT 3149 10399

$$

1 follow-up statement

000 
WGUS74 KMAF 250331
FFSMAF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1020 PM CDT FRI AUG 24 2007

TXC389-250600-
/X.CON.KMAF.FF.W.0003.000000T0000Z-070825T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
REEVES-
1020 PM CDT FRI AUG 24 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR
NORTHWESTERN REEVES COUNTY...

AT 1016 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT SLOW MOVING SHOWERS AND THUNDERSTORMS CAPABLE OF PRODUCING 
VERY HEAVY RAINFALL OVER WESTERN REEVES COUNTY. RAINFALL ESTIMATES 
OVER 4 INCHES OF RAIN HAS LIKELY FALLEN ACROSS PORTIONS OF WESTERN 
REEVES COUNTY...GENERALLY SOUTH OF FARM TO MARKET ROAD 2119 AND 
NORTH OF INTERSTATE 20. ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 
INCHES WILL REMAIN POSSIBLE. HEAVY RAINS ALONG LOCAL DRAWS AND 
CREEKS MAY CAUSE FLASH FLOODING ALONG FARM TO MARKET ROAD 2119...AND 
LOCAL COUNTY ROADS OF WESTERN REEVES COUNTY. 

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 3174 10370 3136 10370 3109 10409 3140 10408
      3144 10406 3180 10403
TIME...MOT...LOC 0320Z 240DEG 3KT 3152 10392

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 7:32 PM CDT	Severe Thunderstorm Warning	MAF	Andrews	58 min
Aug 25, 1:04 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	41 min
Aug 25, 1:42 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	63 min
Aug 25, 2:08 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	67 min
Aug 25, 2:40 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	65 min
Aug 25, 3:15 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	45 min

Nearby

Flash Flood Warnings in Texas, 2007 Every 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.