Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 20, NWS Fort Worth, TX

July 5, 2021Bell County, Coryell County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jul 5, 2021, 8:52 PM CDT for Bell County, Coryell 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: Jul 5, 2021, 8:52 PM CDT (01:52 UTC)
Expired: Jul 6, 2021, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Flood severity: None

Counties Bell County, TX, Coryell County, TX

The radar

The Ft Hood radar (KGRK), 52 km from the middle of the area, began a volume at 01:53 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

Fort Worth, TX (KFWD), launched 00:00Z, 1.9 hours before the alert went out and 189 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: 371 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1431 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

259 
WGUS54 KFWD 060152
FFWFWD
TXC027-099-060500-
/O.NEW.KFWD.FF.W.0020.210706T0152Z-210706T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Fort Worth TX
852 PM CDT Mon Jul 5 2021

The National Weather Service in Fort Worth has issued a

* Flash Flood Warning for...
  Central Bell County in central Texas...
  Southeastern Coryell County in central Texas...

* Until midnight CDT.

* At 852 PM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain in northern portions of Bell 
  County. Between 2 and 4 inches of rain have fallen. Additional 
  rainfall amounts of 1 to 2 inches are possible. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets, and underpasses as well as other
           poor drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Killeen, Temple, Copperas Cove, Harker Heights, Belton, McGregor, 
  Fort Hood, Nolanville, Morgan's Point Resort, Salado, Troy and 
  Mother Neff State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3107 9791 3118 9799 3142 9749 3132 9742
      3124 9734 3128 9728 3108 9714 3100 9745
      3097 9773 3103 9791

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

Godwin

Nearby

Flash Flood Warnings in Texas, 2021 Every flash flood warning in 2021

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.