Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 3, NWS Brownsville, TX

August 22, 1999Kenedy County, Willacy County, Texas

NWS Brownsville, TX issued this flash flood warning at Aug 22, 1999, 7:20 PM CDT for Kenedy County, Willacy 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 22, 1999, 7:20 PM CDT (00:20 UTC)
Expired
Aug 22, 1999, 10:15 PM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Kenedy County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 98 km from the middle of the area, began a volume at 00:24 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, 0.3 hours before the alert went out and 100 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, Brownsville Intl, TX at 00:00Z on 1999-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 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, Brownsville Intl, TX at 00:00Z on 1999-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
113 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBRO 230031
FFWBRO
TXC261-489-230315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
720 PM CDT SUN AUG 22 1999

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  KENEDY COUNTY IN TEXAS
  THIS INCLUDES THE CITY OF SARITA

  NORTHERN WILLACY COUNTY IN TEXAS
  THIS INCLUDES THE CITIES OF...RAYMONDVILLE...PORT MANSFIELD

* UNTIL 1015 PM CDT

* AT 720 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN SPREADING OVER KENEDY AND NORTHERN WILLACY COUNTY  
  IN ASSOCIATION WITH A LANDFALLING HURRICANE BRET.  BRET WAS MAKING 
  LANDFALL ON PADRE ISLAND NATIONAL SEASHORE IN THE MIDDLE OF        
  KENEDY COUNTY.  RAINFALL TOTALS FROM BRET HAVE ALREADY REACHED     
  FROM 3 TO 4 INCHES OVER EASTERN KENEDY AND NORTHEASTERN WILLACY    
  COUNTIES.  AREAS IN THE PATH OF THE CENTER OF BRET WILL SEE HIGHER 
  AMOUNTS FROM 4 TO 8 INCHES BY 10 PM.   

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BROWNSVILLE.

LAT...LON 2643 9785 2643 9739 2725 9747 2726 9799
          2665 9795

What forecasters said that day

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

NWS Brownsville, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 22, 1:15 PM CDT, 6 hours 5 minutes earlier.

Area forecast discussion, Aug 22, 1:15 PM CDT, 6 hours 5 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
115 PM CDT SUN AUG 22 1999

BRET WILL BE APPROACHING LANDFALL BETWEEN PORT MANSFIELD AND BAFFIN
BAY LATE THIS AFTERNOON. 5 TO 10 INCNES AN HOUR IS FALLING NEAR THE
EYEWALL..SO  LOCALLY HEAVY RAIN WILL OCCUR IN BRETS PATH. HAVE GIVEN
SERIOUS CONSIDERATION TO A MORE WIDESPREAD HEAVY RAIN AS WE. WILL
TRY TO INDICATE FAVORED AREAS IN ZONES..HOPE I AM LUCKY. PHENOMENAL
RAIN FELL WHERE BEULAH MADE A RADICAL TURN DECADES AGO. BRET COULD
BE SIMILAR.

IS LIKELY TO CAUSE SUBSTANTIAL DISRUPTION FOR AWHILE IF HIGHWAYS
FLOOD. FLOW OF FOOD..GAS AND OTHER STUFF INTO THE AREA COULD BE
DISRUPTED IF THAT HAPPENS. STREET FLOODING WILL CAUSE LOCAL
DISRUPTION.

BRO RR 074/085 074/089 074 62888
MFE RR 074/085 074/090 075 62888
RGC RR 074/087 074/092 075 62888
SPI RR 074/084 074/086 077 62888

.BRO...
HURRICANE WARNING TXZ251-254-255-GMZ130-150-155-170-175.
HIGH WIND WARNING TXZ248>250-252-253
FLASH FLOOD WARNING TXZ249-250
FLASH FLOOD WATCH TXZ248-252-253

62

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 10:15 PM CDTFlash Flood WarningBROBrooks, Kenedy6 hr
Aug 23, 4:18 AM CDTFlash Flood WarningBROBrooks, Kenedy8 hr
Aug 23, 4:18 AM CDTFlash Flood WarningBROWillacy8 hr
Aug 23, 11:59 AM CDTFlash Flood WarningBROCameron4 hr
Aug 23, 2:59 PM CDTTornado WarningBROKenedy, Willacy31 min
Aug 23, 3:18 PM CDTTornado WarningBROCameron, Hidalgo27 min
Aug 23, 3:34 PM CDTTornado WarningBROKenedy41 min
Aug 23, 3:44 PM CDTTornado WarningBROCameron, Hidalgo, Willacy61 min
Aug 23, 4:27 PM CDTTornado WarningBROWillacy63 min
Aug 23, 6:55 PM CDTFlash Flood WarningBROHidalgo3 hr

Nearby

Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999

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.