Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 10, NWS Brownsville, TX

May 20, 2016Hidalgo County, Texas

NWS Brownsville, TX issued this flash flood warning at May 20, 2016, 10:46 PM CDT for Hidalgo County, Texas. It was in force for 89 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 20, 2016, 10:46 PM CDT (03:46 UTC)
Expired: May 21, 2016, 12:15 AM CDT
In force: 89 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Flood severity: None

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 91 km from the middle of the area, began a volume at 03:48 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

Brownsville Intl, TX (KBRO), launched 00:00Z, 3.8 hours before the alert went out and 94 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: 3488 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 704 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.2

Open this sounding in Storm Lab

The text

As transmitted.

102 
WGUS54 KBRO 210346
FFWBRO
TXC215-210515-
/O.NEW.KBRO.FF.W.0010.160521T0346Z-160521T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1046 PM CDT FRI MAY 20 2016

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL HIDALGO COUNTY IN DEEP SOUTH TEXAS...

* UNTIL 1215 AM CDT

* AT 1045 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 4 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HIDALGO...SOUTH MCALLEN...CHATEAU HEIGHTS...MISSION FIRE STATION
  NUMBER 5...FAIRWAY GRANDE...GARCIA ELEMENTARY SCHOOL...LOS ENCINOS
  COMMUNITY PARK...GRANJERO...MADERO AND B.L. GRAY JUNIOR HIGH
  SCHOOL.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 2610 9829 2611 9827 2612 9827 2612 9830
      2610 9830 2613 9833 2614 9833 2616 9836
      2616 9835 2615 9833 2616 9833 2617 9834
      2619 9827 2616 9816 2608 9826

$$

CASTILLO

1 follow-up statement

460 
WGUS74 KBRO 210501
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1201 AM CDT SAT MAY 21 2016

TXC215-210509-
/O.CAN.KBRO.FF.W.0010.000000T0000Z-160521T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HIDALGO TX-
1201 AM CDT SAT MAY 21 2016

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL HIDALGO COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 2610 9829 2611 9827 2612 9827 2612 9830
      2610 9830 2613 9833 2614 9833 2616 9836
      2616 9835 2615 9833 2616 9833 2617 9834
      2619 9827 2616 9816 2608 9826

$$

CACERES

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 9:17 PM CDT	Special Weather Statement	BRO	Hidalgo	43 min
May 20, 9:28 PM CDT	Areal Flood Advisory	BRO	Hidalgo	92 min
May 20, 9:57 PM CDT	Special Weather Statement	BRO	Hidalgo	48 min
May 20, 10:39 PM CDT	Special Weather Statement	BRO	Hidalgo	51 min
May 20, 10:59 PM CDT	Special Weather Statement	BRO	Hidalgo	46 min
May 20, 11:10 PM CDT	Areal Flood Advisory	BRO	Hidalgo	95 min

Nearby

Flash Flood Warnings in Texas, 2016 Every flash flood warning in 2016

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.