Alert archive / Texas / Flash Flood Watches in 2019

Flash Flood Watch 2, NWS Fort Worth, TX

April 24, 20197 counties in Texas

NWS Fort Worth, TX issued this flash flood watch at Apr 24, 2019, 8:05 PM CDT for 7 counties in Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 24, 2019, 8:05 PM CDT (01:05 UTC)
Expired
Apr 25, 2019, 12:00 AM CDT
In force
4 hr
Issued by
NWS Fort Worth, TX

Counties Anderson County, TX, Freestone County, TX, Henderson County, TX, Leon County, TX, Milam County, TX, Robertson County, TX, Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 152 km from the middle of the area, began a volume at 01:08 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

Shreveport, LA (KBAD), launched 00:00Z, 1.1 hours before the alert went out and 244 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, Shreveport, LA at 00:00Z on 2019-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 94 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2019-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
94 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Fort Worth, TX wrote its last area forecast discussion before this flash flood watch went out at Apr 24, 7:06 PM CDT, 59 minutes earlier.

Area forecast discussion, Apr 24, 7:06 PM CDT, 59 minutes before
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Hazardous weather outlook, Apr 24, 3:43 PM CDT, 4 hours 22 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Fort Worth TX
343 PM CDT Wed Apr 24 2019

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-251100-
Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin-
Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas-
Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell-
Johnson-Ellis-Henderson-Comanche-Mills-Hamilton-Bosque-Hill-Navarro-
Freestone-Anderson-Lampasas-Coryell-Bell-McLennan-Falls-Limestone-
Leon-Milam-Robertson-
343 PM CDT Wed Apr 24 2019

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Today and Tonight.
Numerous thunderstorms are expected across the entire region through
tonight. Locally heavy rainfall may result in some flash flooding,
mainly along and south of the I-20 corridor. Some severe storms will
also be possible with the best chances across Central Texas. Large
hail and damaging winds will be the main hazards, but an isolated
tornado can't be ruled out, mainly this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Some thunderstorms will linger east of the I-35 corridor on Thursday.
Lightning and residual localized flooding will be the primary
hazards.

Low thunderstorm chances will return to the region on Tuesday.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible today and this evening south of the
I-20 corridor.

In the hours before

Special weather statement, Apr 24, 3:58 PM CDT, 4 hours 7 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
358 PM CDT Wed Apr 24 2019

TXZ174-242145-
Milam TX-
358 PM CDT Wed Apr 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR MILAM COUNTY UNTIL 445 PM CDT...

At 357 PM CDT, Doppler radar was tracking a strong thunderstorm near
Granger Dam, or 11 miles east of Granger, moving northeast at 45 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Rockdale, Cameron, Thorndale, Buckholts and Milano.

LAT...LON 3073 9727 3075 9731 3089 9726 3111 9683
      3108 9681 3106 9682 3105 9677 3103 9678
      3100 9677 3100 9675 3097 9677 3093 9676
      3090 9672 3091 9669 3087 9670 3081 9664
      3078 9665 3076 9661 3073 9662 3046 9715
TIME...MOT...LOC 2057Z 238DEG 40KT 3071 9725

30
Special weather statement, Apr 24, 5:33 PM CDT, 2 hours 32 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
533 PM CDT Wed Apr 24 2019

TXZ160>162-175-242300-
Robertson TX-Falls TX-Limestone TX-Leon TX-
533 PM CDT Wed Apr 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ROBERTSON...WEST CENTRAL
LEON...SOUTHEASTERN LIMESTONE AND EAST CENTRAL FALLS COUNTIES UNTIL
600 PM CDT...

At 533 PM CDT, Doppler radar was tracking a strong thunderstorm near
Bremond, or 17 miles southeast of Marlin, moving northeast at 35 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Bremond, Kosse and Marquez.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
central Texas.

LAT...LON 3108 9664 3124 9676 3149 9637 3126 9620
TIME...MOT...LOC 2233Z 238DEG 29KT 3121 9662

30
Local storm report, Apr 24, 5:56 PM CDT, 2 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
556 PM CDT WED APR 24 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0537 AM     FLASH FLOOD      3 S DUBLIN              32.04N  98.33W
04/24/2019                   ERATH              TX   LAW ENFORCEMENT

            *** 3 FATAL, 1 INJ *** VEHICLE CROSSED INTO HIGH WATER
            ON FM 1702 3 MILES SOUTH OF DUBLIN AND WAS SWEPT AWAY.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 8:17 PM CDTRiver Flood WarningFWDAnderson, Freestone, Leon38 days
Apr 24, 8:22 PM CDTRiver Flood WarningFWDDelta, Hopkins47 hr
Apr 24, 8:25 PM CDTAreal Flood AdvisoryFWDLeon, Robertson3 hr
Apr 24, 8:27 PM CDTRiver Flood WarningFWDMilam55 hr
Apr 24, 8:27 PM CDTRiver Flood WarningFWDLimestone58 hr
Apr 24, 8:27 PM CDTRiver Flood WarningFWDLeon, Robertson5 days
Apr 24, 8:51 PM CDTFlash Flood WarningFWDHenderson3 hr
Apr 24, 8:55 PM CDTAreal Flood AdvisoryFWDAnderson3 hr
Apr 24, 11:40 PM CDTAreal Flood WarningFWDHenderson3 hr

Nearby

Flash Flood Watches in Texas, 2019Every flash flood watch 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.