Alert archive / Texas / Flash Flood Warnings in 2019

Flash Flood Warning 21, NWS San Angelo, TX

June 24, 2019Tom Green County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 24, 2019, 6:53 PM CDT for Tom Green 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
Jun 24, 2019, 6:53 PM CDT (23:53 UTC)
Expired
Jun 24, 2019, 9:45 PM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Flood severity
None

County Tom Green County, TX

The radar

The San Angelo radar (KSJT), 16 km from the middle of the area, began a volume at 23:52 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, 11.9 hours before the alert went out and 178 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 12:00Z on 2019-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 966 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 12:00Z on 2019-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 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
966 J/kg
Mixed-layer CIN
-206 J/kg
Mixed-layer LCL
1929 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

596 
WGUS54 KSJT 242353
FFWSJT
TXC451-250245-
/O.NEW.KSJT.FF.W.0021.190624T2353Z-190625T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Angelo TX
653 PM CDT Mon Jun 24 2019

The National Weather Service in San Angelo has issued a

* Flash Flood Warning for...
  Tom Green County in west central Texas...

* Until 945 PM CDT.

* At 651 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across Tom Green County, especially southern parts of 
  the county where radar estimates 1 to 2 inches of rain has fallen 
  in the past hour. Storms and potentially flash flood producing 
  heavy rain is likely to develop over the city of San Angelo as 
  well. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  San Angelo, Christoval, Wall, Orient, San Angelo State Park, Twin
  Buttes Reservoir, Grape Creek, Goodfellow Air Force Base, Mereta,
  Carlsbad, Veribest, Knickerbocker, O.c. Fisher Reservoir, Vancourt,
  Lake Nasworthy, Tankersley, Harriet and Us-67 Near The Irion-
  Tom Green County Line.

This includes the following low water crossings ...
    Howard and Webster...
    Jackson From Knickerbocker to South Bryant...
    Southwest Blvd and Loop 306...
    College Hills and Millbrook...
    FM 1692 crossing Sales Branch...
    FM 2334 crossing Dry Lipan Creek...
    FM 1692 crossing The Draw...
    1500 Block of Spaulding...
    300 block of North Archer and
    Parkwood and Lindenwood.
Do not drive through these low water crossings or any other
low water crossing with water flowing across the roadway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3170 10069 3169 10024 3158 10023 3158 10011
      3109 10012 3109 10069

$$

SJH
1 follow-up statement
275 
WGUS74 KSJT 250058
FFSSJT

Flash Flood Statement
National Weather Service San Angelo TX
758 PM CDT Mon Jun 24 2019

TXC451-250245-
/O.CON.KSJT.FF.W.0021.000000T0000Z-190625T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tom Green TX-
758 PM CDT Mon Jun 24 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN TOM GREEN COUNTY...

At 756 PM CDT, Doppler radar indicates that heavy rain over the 
central and northern parts of the county, including San Angelo, has 
ended, and so those areas have been removed from the warning. In 
southern Tom Green County, thunderstorms producing heavy rain 
continue and radar estimates around 3 inches or more of rain in the 
past 3 hours. Flash flooding is expected to begin shortly.

Some locations that will experience flooding include...
San Angelo, Christoval, Knickerbocker, Vancourt, Twin Buttes
Reservoir, Tankersley and Us-67 Near The Irion-
Tom Green County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3137 10069 3137 10028 3136 10024 3136 10011
      3109 10012 3109 10069

$$

SJH

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 7:42 PM CDTSpecial Weather StatementSJTCallahan63 min
Jun 23, 7:44 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman46 min
Jun 23, 8:03 PM CDTSpecial Weather StatementSJTCallahan42 min
Jun 23, 8:09 PM CDTAreal Flood AdvisorySJTCallahan51 min
Jun 23, 8:29 PM CDTSevere Thunderstorm WarningSJTCallahan61 min
Jun 23, 8:49 PM CDTSevere Thunderstorm WarningSJTBrown41 min
Jun 23, 9:21 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman54 min
Jun 23, 9:46 PM CDTSpecial Weather StatementSJTColeman59 min
Jun 23, 10:09 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman66 min
Jun 23, 10:29 PM CDTFlash Flood WarningSJTCallahan2 hr
Jun 23, 11:11 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman64 min
Jun 24, 3:08 PM CDTSpecial Weather StatementSJTRunnels37 min
Jun 24, 3:39 PM CDTSevere Thunderstorm WarningSJTConcho, Runnels, Tom Green51 min
Jun 24, 4:12 PM CDTAreal Flood AdvisorySJTConcho, Runnels, Tom Green3 hr
Jun 24, 4:22 PM CDTSevere Thunderstorm WarningSJTConcho, Runnels, Tom Green38 min
Jun 24, 4:23 PM CDTSevere Thunderstorm WarningSJTSterling38 min
Jun 24, 4:25 PM CDTSevere Thunderstorm WarningSJTRunnels39 min
Jun 24, 4:59 PM CDTSevere Thunderstorm WarningSJTConcho, Tom Green46 min
Jun 24, 5:03 PM CDTAreal Flood AdvisorySJTSterling3 hr
Jun 24, 5:06 PM CDTSevere Thunderstorm WarningSJTSterling39 min
Jun 24, 5:09 PM CDTSpecial Weather StatementSJTRunnels51 min
Jun 24, 5:10 PM CDTSpecial Weather StatementSJTSterling50 min
Jun 24, 5:13 PM CDTSevere Thunderstorm WarningSJTCoke, Sterling47 min
Jun 24, 5:26 PM CDTAreal Flood AdvisorySJTConcho, Tom Green3 hr
Jun 24, 5:42 PM CDTSevere Thunderstorm WarningSJTConcho, Tom Green48 min
Jun 24, 5:51 PM CDTTornado WarningSJTConcho, Schleicher, Tom Green39 min
Jun 24, 5:52 PM CDTSevere Thunderstorm WarningSJTCoke, Sterling, Tom Green38 min
Jun 24, 6:13 PM CDTAreal Flood AdvisorySJTTom Green3 hr
Jun 24, 6:17 PM CDTAreal Flood AdvisorySJTCoke, Sterling2 hr
Jun 24, 6:24 PM CDTSevere Thunderstorm WarningSJTCoke, Tom Green51 min
Jun 24, 6:29 PM CDTSevere Thunderstorm WarningSJTConcho, Menard, Schleicher, Tom Green46 min
Jun 24, 6:35 PM CDTSevere Thunderstorm WarningSJTSchleicher, Tom Green40 min
Jun 24, 6:45 PM CDTTornado WarningSJTMenard, Schleicher45 min

Nearby

Flash Flood Warnings in Texas, 2019Every flash flood warning in 2019

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.