Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Mar 29, 2012, 9:12 PM CDT for Hidalgo County, Zapata County, Texas. It was in force for 17 days. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 29, 2012, 9:12 PM CDT (02:12 UTC)
- Expired
- Apr 15, 2012, 11:30 PM CDT
- In force
- 17 days
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hidalgo County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 197 km from the middle of the area, began a volume at 02:12 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, 2.2 hours before the alert went out and 200 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.
- Mixed-layer CAPE
- 1987 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 741 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
575
WGUS54 KBRO 300212
FFWBRO
TXC215-300400-
/O.NEW.KBRO.FF.W.0001.120330T0212Z-120330T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
912 PM CDT THU MAR 29 2012
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL HIDALGO COUNTY IN DEEP SOUTH TEXAS...
THIS INCLUDES THE CITIES OF...SAN JUAN...PHARR...MISSION...
MCALLEN...HIDALGO...EDINBURG...DONNA...ALAMO.
* UNTIL 1100 PM CDT
* AT 912 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS INDICATED
TORRENTIAL RAIN OF INCHES PER HOUR FROM SLOW MOVING THUNDERSTORMS
WITH VERY HEAVY RAINFALL. THESE STORMS WERE OVER EDINBURG...AND ARE
EXPECTED TO MOVE ACROSS THE ENTIRE MIDDLE VALLEY SHORTLY.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ABRAM-PEREZVILLE...ALTON...CESAR CHAVEZ...CITRUS CITY...DOFFING...
DOOLITTLE...FAYSVILLE...GRANJERO...LA BLANCA...LA HOMA...
LOPEZVILLE...MADERO...MCALLEN MILLER AIRPORT...MUNIZ...NORTH
ALAMO...NURILLO...PALMHURST...PALMVIEW...SAN CARLOS...SCISSORS...
SOUTH ALAMO AND WEST SHARYLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DON'T BECOME A STATISTIC. TURN AROUND...DON'T DROWN!
&&
LAT...LON 2607 9825 2610 9829 2612 9829 2610 9830
2615 9835 2615 9838 2618 9842 2621 9844
2645 9846 2643 9804 2609 9803 2606 9819
$$
JGG4 follow-up statements
845
WGUS74 KBRO 300249
FFSBRO
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
949 PM CDT THU MAR 29 2012
TXC215-300400-
/O.CON.KBRO.FF.W.0001.000000T0000Z-120330T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HIDALGO TX-
949 PM CDT THU MAR 29 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN HIDALGO COUNTY
UNTIL 1100 PM CDT...
* AT 947 PM...RADAR ESTIMATED FOUR TO FIVE INCHES OF RAIN HAS
FALLEN SINCE 845 PM IN PORTIONS OF THE MIDDLE VALLEY...MAINLY NEAR
EDINBURG AND MCALLEN. RADAR INDICATES SOME THUNDERSTORMS ARE
REFORMING OVER THE SAME AREA. SOME STREET FLOODING HAS ALREADY BEEN
REPORTED AND CONDITIONS WILL LIKELY WORSEN IN EDINBURG AND MCALLEN
VERY SHORTLY.
THIS IS A POTENTIALLY DANGEROUS SITUATION. AVOID TRAVEL IN THE
WARNED AREA IF POSSIBLE.
LOCATIONS AFFECTED INCLUDE...
SAN JUAN.
PHARR.
MISSION.
MCALLEN.
HIDALGO.
EDINBURG.
DONNA.
ALAMO.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ABRAM-PEREZVILLE...ALTON...CESAR CHAVEZ...CITRUS CITY...DOFFING...
DOOLITTLE...FAYSVILLE...GRANJERO...LA BLANCA...LA HOMA...
LOPEZVILLE...MADERO...MCALLEN MILLER AIRPORT...MUNIZ...NORTH ALAMO...
NURILLO...PALMHURST...PALMVIEW...SAN CARLOS...SCISSORS...SOUTH ALAMO
AND WEST SHARYLAND.
LAT...LON 2607 9825 2610 9829 2612 9829 2610 9830
2615 9835 2615 9838 2618 9842 2621 9844
2645 9846 2643 9804 2609 9803 2606 9819
$$
JGG997
WGUS74 KBRO 300302
FFSBRO
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1002 PM CDT THU MAR 29 2012
TXC215-300400-
/O.CON.KBRO.FF.W.0001.000000T0000Z-120330T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HIDALGO TX-
1002 PM CDT THU MAR 29 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN HIDALGO COUNTY
UNTIL 1100 PM CDT...
AT 1001 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS INDICATED
TORRENTIAL RAIN OF FOUR TO FIVE INCHES HAD FALLEN SINCE 830 PM FROM
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER THE MIDDLE
VALLEY. THE WORST WAS NEAR MCALLEN AND EDINBURG. EXTENSIVE AND
DANGEROUS URBAN FLOODING IS POSSIBLE IN THIS AREA!
LOCATIONS AFFECTED INCLUDE...
SAN JUAN.
PHARR.
MISSION.
MCALLEN.
HIDALGO.
EDINBURG.
DONNA.
ALAMO.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ABRAM-PEREZVILLE...ALTON...CESAR CHAVEZ...CITRUS CITY...DOFFING...
DOOLITTLE...FAYSVILLE...GRANJERO...LA BLANCA...LA HOMA...
LOPEZVILLE...MADERO...MCALLEN MILLER AIRPORT...MUNIZ...NORTH ALAMO...
NURILLO...PALMHURST...PALMVIEW...SAN CARLOS...SCISSORS...SOUTH ALAMO
AND WEST SHARYLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WIDESPREAD FLOODING IS OCCURRING OR WILL OCCUR SOON. NUMEROUS ROADS
WILL BE CLOSED...AND HOMES ESPECIALLY IN LOW LYING AREAS...WILL
BECOME INUNDATED. MOVE TO HIGHER GROUND IMMEDIATELY!
&&
LAT...LON 2607 9825 2610 9829 2612 9829 2610 9830
2615 9835 2615 9838 2618 9842 2621 9844
2645 9846 2643 9804 2609 9803 2606 9819
$$
JGG584
WGUS74 KBRO 300331
FFSBRO
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1031 PM CDT THU MAR 29 2012
TXC215-300400-
/O.CON.KBRO.FF.W.0001.000000T0000Z-120330T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HIDALGO TX-
1031 PM CDT THU MAR 29 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL HIDALGO
COUNTY UNTIL 1100 PM CDT...
LOCATIONS AFFECTED INCLUDE...
SAN JUAN.
PHARR.
MISSION.
MCALLEN.
HIDALGO.
EDINBURG.
DONNA.
ALAMO.
AT 1030 PM CDT...THE PUBLIC REPORTED FOUR FEET OF WATER COVERING
STREETS IN MCALLEN. RADAR INDICATES ADDITIONAL VERY HEAVY RAINFALL
WILL CONTINUE. A DANGEROUS AND POTENTIALLY LIFE THREATENING FLASH
FLOODING SITUATION IS DEVELOPING...ESPECIALLY NEAR MCALLEN AND
EDINBURG. MOTORISTS ARE URGED TO AVOID TRAVEL IF POSSIBLE IN THE
MIDDLE VALLEY!
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ALTON...CESAR
CHAVEZ...GRANJERO...LOPEZVILLE...MADERO...MCALLEN MILLER AIRPORT...
MUNIZ...NORTH ALAMO...NURILLO...PALMHURST...SAN CARLOS...SCISSORS AND
SOUTH ALAMO.
LAT...LON 2607 9825 2610 9829 2612 9829 2610 9830
2615 9835 2615 9838 2618 9842 2620 9840
2632 9828 2631 9805 2609 9803 2606 9819
$$
JGG441
WGUS54 KBRO 160223
FFWBRO
TXC505-160430-
/O.NEW.KBRO.FF.W.0001.120416T0223Z-120416T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
923 PM CDT SUN APR 15 2012
THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN ZAPATA COUNTY IN SOUTH CENTRAL TEXAS...
* UNTIL 1130 PM CDT
* AT 922 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS
INDICATED TORRENTIAL RAIN OF 3 INCHES PER HOUR FROM SLOW MOVING
THUNDERSTORMS WITH VERY HEAVY RAINFALL.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR.
OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ALEJANDRENAS AND LOPENO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. 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 TO RISE.
LOW WATER CROSSINGS ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT
ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT
ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES
AWAY.
DON'T BECOME A STATISTIC. TURN AROUND...DON'T DROWN!
&&
LAT...LON 2693 9902 2679 9895 2671 9899 2664 9920
2667 9921 2672 9921 2675 9925 2679 9925
2682 9927 2685 9928
$$
64The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:25 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo, Jim Hogg, Starr | 65 min |
| Mar 29, 7:41 PM CDT | Areal Flood Advisory | BRO | Hidalgo, Starr | 64 min |
| Mar 29, 8:29 PM CDT | Areal Flood Advisory | BRO | Brooks, Jim Hogg | 2 hr |
| Mar 29, 8:37 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 53 min |
| Mar 29, 8:40 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 95 min |
| Mar 29, 9:09 PM CDT | Tornado Warning | BRO | Hidalgo | 36 min |
| Mar 29, 9:20 PM CDT | Severe Thunderstorm Warning | BRO | Starr | 33 min |
| Mar 29, 9:31 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 29 min |
| Mar 29, 9:46 PM CDT | Tornado Warning | BRO | Hidalgo | 29 min |
| Mar 29, 10:18 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 42 min |
| Mar 29, 10:47 PM CDT | Flash Flood Warning | BRO | Hidalgo | 3 hr |
| Mar 29, 11:19 PM CDT | Areal Flood Advisory | BRO | Cameron, Hidalgo | 14 min |
| Mar 29, 11:31 PM CDT | Flash Flood Warning | BRO | Cameron, Hidalgo | 2 hr |
| Mar 29, 11:54 PM CDT | Special Marine Warning | BRO | 76 min | |
| Mar 30, 12:31 AM CDT | Areal Flood Advisory | BRO | Cameron | 76 min |
| Mar 30, 2:08 AM CDT | Areal Flood Warning | BRO | Cameron, Hidalgo | 2 hr |
| Mar 30, 2:53 AM CDT | Special Marine Warning | BRO | 70 min | |
| Mar 30, 3:32 AM CDT | Small Craft Advisory for Hazardous Seas | BRO | 2 hr |
Nearby
Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012
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.