Alert archive / Texas / Flash Flood Watches in 2020

Flash Flood Watch 2, NWS Brownsville, TX

July 24, 20208 counties in Texas

NWS Brownsville, TX issued this flash flood watch at Jul 24, 2020, 9:10 AM CDT for 8 counties in Texas. It took effect at Jul 25, 2020, 7:00 AM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued
Jul 24, 2020, 9:10 AM CDT (14:10 UTC)
In effect from
Jul 25, 2020, 7:00 AM CDT
Expired
Jul 29, 2020, 2:24 PM CDT
In force
4 days
Issued by
NWS Brownsville, TX
Flood severity
None

Counties Brooks County, TX, Cameron County, TX, Hidalgo County, TX, Jim Hogg County, TX, Kenedy County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX

The radar

The Brownsville radar (KBRO), 118 km from the middle of the area, began a volume at 14:11 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 12:00Z, 2.2 hours before the alert went out and 120 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 12:00Z on 2020-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2473 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2020-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
2473 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

640 
WGUS64 KBRO 241410
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
910 AM CDT Fri Jul 24 2020

...HEAVY SHOWERS AND THUNDERSTORMS WITH FLOODING THIS WEEKEND...

.Tropical Storm Hanna is expected to make landfall this weekend
along the middle Texas coast. Heavy showers and thunderstorms 
will accompany this tropical system, and flash flooding is likely 
to occur within Deep South Texas and the Rio Grande Valley this 
weekend. 

TXZ248>257-351-353-242300-
/O.NEW.KBRO.FF.A.0002.200725T1200Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
Including the cities of Zapata, Hebbronville, Falfurrias, Sarita,
Rio Grande City, Roma, McAllen, Edinburg, Pharr, Mission, 
Weslaco, Raymondville, Brownsville, Harlingen, Port Mansfield, 
Port Isabel, South Padre Island, Laguna Heights, Laguna Vista, 
and San Manuel
910 AM CDT Fri Jul 24 2020

...FLASH FLOOD WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY EVENING...

The National Weather Service in Brownsville has issued a

* Flash Flood Watch for all of Deep South Texas and the Rio Grande
  Valley, including the following areas, Brooks, Coastal Cameron,
  Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy,
  Inland Willacy, Jim Hogg, Northern Hidalgo, Southern Hidalgo, 
  Starr, and Zapata.
  
* From Saturday morning through Sunday evening

* Heavy showers and thunderstorms associated with Tropical Storm
  Hanna will produce 4 to 8 inches of rainfall, with up to 12
  inches of rain possible. 

* Low-lying and poorly-draining areas as well as urban locations
  will experience flooding. Heavy rainfall in a short period of
  time will cause creeks and arroyos to overflow. Driving will be
  difficult, and motorists are urged to find alternative routes if
  flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

TOMASELLI
18 follow-up statements
008 
WGUS64 KBRO 242019 AAA
FFABRO

Flood Watch...UPDATED
National Weather Service Brownsville TX
319 PM CDT Fri Jul 24 2020

...HEAVY SHOWERS AND THUNDERSTORMS WITH FLOODING THIS WEEKEND...

.Tropical Storm Hanna is expected to make landfall this weekend
along the middle Texas coast. Heavy showers and thunderstorms
will accompany this tropical system, and flash flooding is likely
to occur within Deep South Texas and the Rio Grande Valley this
weekend.

TXZ248>257-351-353-250500-
/O.CON.KBRO.FF.A.0002.200725T1200Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
Including the cities of Zapata, Hebbronville, Falfurrias, Sarita,
Rio Grande City, Roma, McAllen, Edinburg, Pharr, Mission, 
Weslaco, Raymondville, Brownsville, Harlingen, Port Mansfield, 
Port Isabel, South Padre Island, Laguna Heights, Laguna Vista, 
and San Manuel
319 PM CDT Fri Jul 24 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SUNDAY EVENING...

The Flash Flood Watch continues for

* All of Deep South Texas and the Rio Grande Valley, including 
  the following areas, Brooks, Coastal Cameron, Coastal Kenedy, 
  Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr, and Zapata.
  
* From Saturday morning through Sunday evening

* Heavy showers and thunderstorms associated with Tropical Storm
  Hanna will produce 5 to 10 inches of rainfall, with up to 15 
  inches of rain possible. 

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will 
  be difficult, and motorists are urged to find alternative 
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

TOMASELLI
940 
WGUS64 KBRO 250422
FFABRO

Flood Watch
National Weather Service Brownsville TX
1122 PM CDT Fri Jul 24 2020

.Tropical Storm Hanna is expected to make landfall this weekend
along the middle Texas coast. Heavy showers and thunderstorms
will accompany this tropical system, and flash flooding is likely
to occur within Deep South Texas and the Rio Grande Valley this
weekend.

TXZ248>257-351-353-251230-
/O.CON.KBRO.FF.A.0002.200725T1200Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-Inland
Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-Coastal
Kenedy-Northern Hidalgo-
Including the cities of Brownsville, Rio Grande City, Raymondville, 
Weslaco, Sarita, Zapata, Edinburg, Port Mansfield, Pharr, Mission, 
Port Isabel, McAllen, South Padre Island, San Manuel, Laguna 
Heights, Falfurrias, Roma, Harlingen, Hebbronville, and Laguna Vista
1122 PM CDT Fri Jul 24 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT SATURDAY 
THROUGH SUNDAY EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland 
  Cameron, Inland Kenedy, Inland Willacy, Jim Hogg, Northern 
  Hidalgo, Southern Hidalgo, Starr and Zapata.

* From 7 AM CDT Saturday through Sunday evening

* Heavy showers and thunderstorms associated with Tropical Storm 
  Hanna will produce 5 to 10 inches of rainfall, with up to 15 
  inches of rain possible.

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of time 
  will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Farris
747 
WGUS64 KBRO 251211
FFABRO

Flood Watch
National Weather Service Brownsville TX
711 AM CDT Sat Jul 25 2020

.Hurricane Hanna is expected to make landfall later today
along the lower Texas coast. Heavy showers and thunderstorms
will accompany this tropical system, and flash flooding is likely
to occur within Deep South Texas and the Rio Grande Valley this
weekend.

TXZ248>257-351-353-252015-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-Inland
Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-Coastal
Kenedy-Northern Hidalgo-
Including the cities of Brownsville, Rio Grande City, Raymondville, 
Weslaco, Sarita, Zapata, Edinburg, Port Mansfield, Pharr, Mission, 
Port Isabel, McAllen, South Padre Island, San Manuel, Laguna 
Heights, Falfurrias, Roma, Harlingen, Hebbronville, and Laguna Vista
711 AM CDT Sat Jul 25 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland 
  Cameron, Inland Kenedy, Inland Willacy, Jim Hogg, Northern 
  Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through Sunday evening

* Heavy showers and thunderstorms associated with Hurricane Hanna 
  will produce 6 to 12 inches of rainfall, with up to isolated 18 
  inches of rain possible.

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of time 
  will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Farris
259 
WGUS64 KBRO 251950 AAA
FFABRO

Flood Watch...UPDATED
National Weather Service Brownsville TX
250 PM CDT Sat Jul 25 2020

...HEAVY SHOWERS AND ISOLATED THUNDERSTORMS SPREADING INLAND...

.Hurricane Hanna is expected to make landfall along the south
Texas coast today. Heavy showers and isolated thunderstorms are
developing and spreading inland in association with Hanna. Flash
flooding will occur within Deep South Texas and the Rio Grande 
Valley through this weekend.

TXZ248>257-351-353-260500-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
Including the cities of Zapata, Hebbronville, Falfurrias, Sarita,
Rio Grande City, Roma, McAllen, Edinburg, Pharr, Mission, 
Weslaco, Raymondville, Brownsville, Harlingen, Port Mansfield, 
Port Isabel, South Padre Island, Laguna Heights, Laguna Vista, 
and San Manuel
250 PM CDT Sat Jul 25 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY EVENING...

The Flash Flood Watch continues for

* All of Deep South Texas and the Rio Grande Valley, including 
  the following areas, Brooks, Coastal Cameron, Coastal Kenedy, 
  Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr, and Zapata.
  
* Through Sunday evening

* Heavy showers and thunderstorms associated with Hurricane 
  Hanna will produce 6 to 12 inches of rainfall, with up to 
  isolated 18 inches of rain possible. 

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will 
  be difficult, and motorists are urged to find alternative 
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

TOMASELLI
801 
WGUS64 KBRO 260948
FFABRO

Flood Watch
National Weather Service Brownsville TX
448 AM CDT Sun Jul 26 2020

.Tropical Storm Hanna will continue to slowly move inland today. 
Heavy showers and thunderstorms will accompany this tropical system, 
and flash flooding is likely to occur within Deep South Texas and 
the Rio Grande Valley today.

TXZ248>257-351-353-261800-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-Inland
Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-Coastal
Kenedy-Northern Hidalgo-
Including the cities of Brownsville, Rio Grande City, Raymondville, 
Weslaco, Sarita, Zapata, Edinburg, Port Mansfield, Pharr, Mission, 
Port Isabel, McAllen, South Padre Island, San Manuel, Laguna 
Heights, Falfurrias, Roma, Harlingen, Hebbronville, and Laguna Vista
448 AM CDT Sun Jul 26 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland 
  Cameron, Inland Kenedy, Inland Willacy, Jim Hogg, Northern 
  Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through this evening

* Heavy showers and thunderstorms associated with Tropical Storm 
  Hanna will produce 6 to 12 inches of rainfall, with up to isolated 
  18 inches of rain possible.

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of time 
  will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Farris
977 
WGUS64 KBRO 261707 AAA
FFABRO

Flood Watch...UPDATED
National Weather Service Brownsville TX
1207 PM CDT Sun Jul 26 2020

.Tropical Storm Hanna has moved into northern Mexico. However,
heavy showers and thunderstorms will continue to accompany this
tropical system, and flash flooding is likely to continue in Deep
South Texas and the Rio Grande Valley through the remainder of the
weekend.

TXZ248>257-351-353-270000-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
Including the cities of Zapata, Hebbronville, Falfurrias, Sarita,
Rio Grande City, Roma, McAllen, Edinburg, Pharr, Mission, 
Weslaco, Raymondville, Brownsville, Harlingen, Port Mansfield, 
Port Isabel, South Padre Island, Laguna Heights, Laguna Vista, 
and San Manuel
1207 PM CDT Sun Jul 26 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

The Flash Flood Watch continues for

* All of Deep South Texas and the Rio Grande Valley, including 
  the following areas, Brooks, Coastal Cameron, Coastal Kenedy, 
  Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr, and Zapata.
  
* Until 7 PM CDT this evening

* Heavy showers and thunderstorms associated with Tropical Storm
  Hanna will produce an additional 2 to 5 inches of rainfall.
  Total precipitation amounts for the entire Tropical Storm Hanna
  event will be 6 to 12 inches with isolated pockets of 18 inches
  possible.  

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will 
  be difficult, and motorists are urged to find alternative 
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
165 
WGUS64 KBRO 262220 AAA
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch...UPDATED
National Weather Service Brownsville TX
520 PM CDT Sun Jul 26 2020

.Tropical Depression Hanna has moved into northern Mexico. 
However, heavy showers and thunderstorms will continue to develop
in the proximity of this tropical system. The threat for flash 
flooding is likely to persist for a portion of Deep South Texas 
and the Rio Grande Valley from now through the early morning hours
of Monday. 

TXZ249>251-351-262330-
/O.CAN.KBRO.FF.A.0002.000000T0000Z-200727T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jim Hogg-Brooks-Inland Kenedy-Coastal Kenedy-
Including the cities of Hebbronville, Falfurrias, and Sarita
520 PM CDT Sun Jul 26 2020

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of Deep South Texas has been
cancelled. 

Although the Flash Flood Watch for Jim Hogg, Brooks, and Kenedy
counties is no longer in effect, residents of these counties may
still experience isolated showers and thunderstorms with no flash
flooding expected to occur.

$$

TXZ248-252>257-353-270700-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200727T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Zapata, Rio Grande City, Roma, McAllen, 
Edinburg, Pharr, Mission, Weslaco, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, Laguna Vista, and San Manuel
520 PM CDT Sun Jul 26 2020

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH LATE TONIGHT...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas and the Rio Grande Valley, 
  including the following areas, Coastal Cameron, Coastal Willacy,
  Inland Cameron, Inland Willacy, Northern Hidalgo, Southern 
  Hidalgo, Starr, and Zapata.
  
* Through late tonight

* Heavy showers and thunderstorms associated with Tropical
  Depression Hanna will produce an additional 2 to 5 inches of
  rainfall. Total precipitation amounts for the entire Hanna 
  event will be 6 to 12 inches with isolated pockets of 18 inches 
  possible. 

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will 
  be difficult, and motorists are urged to find alternative 
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

TOMASELLI
765 
WGUS64 KBRO 270342
FFABRO

Flood Watch
National Weather Service Brownsville TX
1042 PM CDT Sun Jul 26 2020

.Tropical Depression Hanna has moved into northern Mexico. However, 
heavy rain showers and thunderstorms will continue to develop in 
association with this tropical system. The threat for flash flooding 
is likely to persist across portions of Deep South Texas through the 
rest of tonight through early Monday morning.

TXZ248-252>257-353-271100-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200727T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
1042 PM CDT Sun Jul 26 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM CDT MONDAY...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Until 6 AM CDT Monday

* Showers and thunderstorms associated with Tropical Depression 
  Hanna will produce an additional 1 to 4 inches of rainfall. Total 
  storm rainfall amounts of 6 to 12 inches with isolated amounts of 
  16 inches are possible after all the rain has fallen.

* Low-lying and poorly-draining areas as well as urban locations 
  will experience flooding. Heavy rainfall in a short period of time 
  will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Castillo
467 
WGUS64 KBRO 270846
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
346 AM CDT Mon Jul 27 2020

.Combination of lingering high moisture levels and weakness in the 
mid-level flow following Tropical Depression Hanna will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or 
thunderstorms could result in the concern for additional isolated 
flash flooding.

TXZ248-252>257-353-271700-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200728T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
346 AM CDT Mon Jul 27 2020

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through this evening

* Any heavier showers and thunderstorms could produce an additional 
  1 to 2 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Brady
430 
WGUS64 KBRO 271651
FFABRO

Flood Watch
National Weather Service Brownsville TX
1151 AM CDT Mon Jul 27 2020

.Combination of lingering high moisture levels and weakness in the 
mid-level flow following Tropical Depression Hanna will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or 
thunderstorms could result in the concern for additional isolated 
flash flooding.

TXZ248-252>257-353-280100-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200728T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
1151 AM CDT Mon Jul 27 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Until 8 PM CDT this evening

* Any heavier showers and thunderstorms could produce an additional 
  1 to 2 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Speece
407 
WGUS64 KBRO 280030
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
730 PM CDT Mon Jul 27 2020

.Combination of lingering high moisture levels and weakness in the 
mid-level flow following Tropical Depression Hanna will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or 
thunderstorms could result in the concern for additional isolated 
flash flooding.

TXZ248-252>257-353-280830-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200728T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
730 PM CDT Mon Jul 27 2020

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 4 AM CDT TUESDAY...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Until 4 AM CDT Tuesday

* Any heavier showers and thunderstorms could produce an additional 
  1 to 2 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Tomaselli
149 
WGUS64 KBRO 280845
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
345 AM CDT Tue Jul 28 2020

.The combination of antecedent wet conditions, lingering high 
moisture levels and weakness in the mid-level flow will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or
thunderstorms could result in the concern for additional isolated
flash flooding.

TXZ248-252>257-353-281700-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200729T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Zapata, Rio Grande City, Roma, McAllen, 
Edinburg, Pharr, Mission, Weslaco, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, Laguna Vista, and San Manuel
345 AM CDT Tue Jul 28 2020

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland 
  Willacy, Northern Hidalgo, Southern Hidalgo, Starr, and 
  Zapata. 

* Through this evening

* Rainfall amounts of up to 1 inch with isolated amounts of 1 to 3
  inches.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will 
  be difficult, and motorists are urged to find alternative 
  routes if flooded roadways are encountered. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

&&

$$

Brady
053 
WGUS64 KBRO 281606
FFABRO

Flood Watch
National Weather Service Brownsville TX
1106 AM CDT Tue Jul 28 2020

.Combination of lingering high moisture levels and weakness in the 
mid-level flow following Tropical Depression Hanna will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or 
thunderstorms could result in the concern for additional isolated 
flash flooding.

TXZ248-252>257-353-290015-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200729T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
1106 AM CDT Tue Jul 28 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM CDT THIS 
EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Until 10 PM CDT this evening

* Any heavier showers and thunderstorms could produce an additional 
  1 to 2 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Hallman
571 
WGUS64 KBRO 282117
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
417 PM CDT Tue Jul 28 2020

.Combination of lingering high moisture levels and weakness in the 
mid-level flow following Tropical Depression Hanna will lead to 
scattered showers and thunderstorms today. With waterlogged soils 
from the very recent rainfall and flooding, any heavier showers or 
thunderstorms could result in the concern for additional isolated 
flash flooding.

TXZ249-290530-
/O.EXB.KBRO.FF.A.0002.000000T0000Z-200729T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jim Hogg-
Including the cities of Hebbronville
417 PM CDT Tue Jul 28 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL 4 AM CDT WEDNESDAY...

The National Weather Service in Brownsville has expanded the

* Flash Flood Watch to include a portion of Deep South Texas, 
  including the following area, Jim Hogg.

* Until 4 AM CDT Wednesday

* Any heavier showers and thunderstorms could produce an additional 
  1 to 3 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

TXZ248-252>257-353-290530-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200729T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-Coastal
Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, Laguna Heights, San Manuel, Roma, 
Harlingen, Brownsville, and Laguna Vista
417 PM CDT Tue Jul 28 2020

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 4 AM CDT WEDNESDAY...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Until 4 AM CDT Wednesday

* Any heavier showers and thunderstorms could produce an additional 
  1 to 3 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Speece
392 
WGUS64 KBRO 290507
FFABRO

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Brownsville TX
1207 AM CDT Wed Jul 29 2020

.Abundant moisture to combine with a mid-level upper trough to 
produce another round of showers and thunderstorms, some which will 
be potentially heavy, across portions of the Deep South Texas and 
the Rio Grande Wednesday. Any additional rainfall that falls over 
antecedent saturated soil and areas that remain flooded will only 
cause additional flooding or worsen on-going flooding conditions. 
The flash flood watch will be extended through early Wednesday 
evening for the continued flooding threat. 
.

TXZ248-249-252>257-353-291315-
/O.EXT.KBRO.FF.A.0002.000000T0000Z-200730T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, San Manuel, Laguna Heights, 
Brownsville, Roma, Harlingen, Hebbronville, and Laguna Vista
1207 AM CDT Wed Jul 29 2020

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH WEDNESDAY EVENING...

The Flash Flood Watch is now in effect for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through this evening

* Any heavier showers and thunderstorms could produce an additional 
  1 to 3 inches of rainfall.

* Low-lying and poorly-draining areas as well as urban locations 
  could experience flooding. Heavy rainfall in a short period of 
  time will cause creeks and arroyos to overflow. Driving will be 
  difficult, and motorists are urged to find alternative routes if 
  flooded roadways are encountered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Bogorad
657 
WGUS64 KBRO 291158
FFABRO

Flood Watch
National Weather Service Brownsville TX
658 AM CDT Wed Jul 29 2020

TXZ248-249-252>257-353-300100-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200730T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, San Manuel, Laguna Heights, 
Brownsville, Roma, Harlingen, Hebbronville, and Laguna Vista
658 AM CDT Wed Jul 29 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through this evening

* On Tuesday Emergency Management and local law enforcement continued
  to report areas of flooding and road closures due to excessive 
  standing water from heavy rainfall that fell during Hurricane Hanna. 
  Flooding is already occurring. Between 10 and 15 inches of rain have 
  fallen. Showers and thunderstorms developing this morning south of 
  the Rio Grande River are expected to spread north this morning and 
  through the afternoon. Any additional potentially heavy rainfall 
  that falls over the flooded areas will exacerbate the on-going 
  flooding.


* Avoid any flooded roadways, do not cross barriers or road closure 
  signs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Bogorad
321 
WGUS64 KBRO 291203
FFABRO

Flood Watch
National Weather Service Brownsville TX
703 AM CDT Wed Jul 29 2020

TXZ248-249-252>257-353-300100-
/O.CON.KBRO.FF.A.0002.000000T0000Z-200730T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, San Manuel, Laguna Heights, 
Brownsville, Roma, Harlingen, Hebbronville, and Laguna Vista
703 AM CDT Wed Jul 29 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* A portion of Deep South Texas, including the following areas, 
  Coastal Cameron, Coastal Willacy, Inland Cameron, Inland Willacy, 
  Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr and Zapata.

* Through this evening

* Abundant moisture to combine with a mid-level upper trough to 
  produce another round of showers and thunderstorms, some which will 
  be potentially heavy, across portions of the Deep South Texas and 
  the Rio Grande Wednesday. Any additional rainfall that falls over 
  antecedent saturated soil and areas that remain flooded will only 
  cause additional flooding or worsen on-going flooding conditions. 
  The flash flood watch will be extended through early Wednesday 
  evening for the continued flooding threat. 

* Avoid any flooded roadways, do not cross barriers or road closure 
  signs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

Do not enter or cross flowing water or water of unknown depth.

Stay away or be swept away. River banks and culverts can become 
unstable and unsafe.

&&

$$

Bogorad
384 
WGUS64 KBRO 291924
FFABRO

Flood Watch
National Weather Service Brownsville TX
224 PM CDT Wed Jul 29 2020

TXZ248-249-252>257-353-292030-
/O.CAN.KBRO.FF.A.0002.000000T0000Z-200730T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Zapata-Jim Hogg-Starr-Southern Hidalgo-Inland Willacy-Inland Cameron-
Coastal Willacy-Coastal Cameron-Northern Hidalgo-
Including the cities of Rio Grande City, Raymondville, Weslaco, 
Zapata, Edinburg, Port Mansfield, Pharr, Mission, Port Isabel, 
McAllen, South Padre Island, San Manuel, Laguna Heights, 
Brownsville, Roma, Harlingen, Hebbronville, and Laguna Vista
224 PM CDT Wed Jul 29 2020

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of Deep South Texas, including 
the following areas: Coastal Cameron, Coastal Willacy, Inland 
Cameron, Inland Willacy, Jim Hogg, Northern Hidalgo, Southern 
Hidalgo, Starr and Zapata has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. Please continue to heed remaining road closures.

$$

53-Schroeder

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 Brownsville, TX wrote its last area forecast discussion before this flash flood watch went out at Jul 24, 6:39 AM CDT, 2 hours 31 minutes earlier.

Area forecast discussion, Jul 24, 6:39 AM CDT, 2 hours 31 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
639 AM CDT Fri Jul 24 2020

.DISCUSSION...Updated for latest aviation discussion below.

&&

.AVIATION...Satellite imagery shows mostly high clouds passing
over the Rio Grande Valley early this morning. VFR conditions are
expected to continue until about midday today when showers and
thunderstorms form along the sea breeze and bring intermittent
MVFR conditions this afternoon. Rain chances will increase through
the period as Tropical Storm Hanna nears the lower Texas coast.
Winds will start off from the north and gradually shift easterly
and then southerly tonight, but will generally remain light
through the period, except for any locally moderate gusts in
shower or thunderstorm activity.

&&

.PREV DISCUSSION... /issued 504 AM CDT Fri Jul 24 2020/

..TROPICAL STORM HANNA MOVING WEST TOWARD SATURDAY LANDFALL NEAR
BAFFIN BAY...
..TROPICAL STORM WARNINGS IN EFFECT...

SHORT TERM (Now through Saturday): The main concern for the
short term period continues to be the potential impacts from
Tropical Storm Hanna (upgraded overnight from Tropical Depression
8). As of 10 PM CDT on Thursday, TS Hanna was located in the
northwestern Gulf near latitude 26.2 North, longitude 91.4 West
and is expected to move toward the west-northwest and make
landfall somewhere along the South Texas coast midday Saturday
with a maximum intensity around 55 knots or just over 60 mph. The
forecasted track of Hanna has trended southward over the last
couple of NHC advisory packages, matching the recent model trends,
and effectively increasing the potential impacts across Deep
South Texas. The main impact continues to be heavy rain and flash
flooding as this slow moving system brings ample tropical moisture
to our area. Precipitable water values near 2.7 inches on
Saturday, putting expected peak rainfall amounts around 4 to 8
inches, with isolated amounts up to 12 inches possible. With the
expected rainfall, the Weather Prediction Center has included the
coastal areas in a marginal risk for excessive rainfall today,
and a slight and moderate risk for excessive rainfall on Saturday
when we're expecting Hanna to move inland. Tropical-Storm-force
winds are also expected to impact most of Deep South Texas where
Tropical Storm Warnings are in effect as the system moves inland
on Saturday. Follow the latest updates from the National Hurricane
Center as adjustments to the track are made.

Have held off on issuing a Flash Flood Watch in this forecast
package after collaborating with our neighboring NWS office, but
one will likely be issued during the next package as confidence
increases.

Swell across the coastal waters from Tropical Storm Hanna may
produce minor coastal flooding beginning late this afternoon,
with water rising up to or near the dunes, especially on narrow
beaches. Current water levels at SPI Brazos Santiago continue to
show levels about a foot above predicted tides. Thus, a Coastal
Flood Advisory may be needed later today.

Otherwise, temperatures are expected to be near seasonal normal
today with light northerly winds shifting northeasterly this
afternoon. Rain chances will increase across the Gulf waters and
our eastern counties today as distant bands from TS Hanna along
with any sea breeze initiation move westward across our area. As
can be expected, temperatures will be significantly cooler on
Saturday with the widespread shower and thunderstorm activity.

LONG TERM (Saturday Night through Thursday): With Hanna making
landfall along the northern portion of the lower Texas Coast on
Saturday, concerns have increased for areas of heavy rainfall and
flash flooding. These concerns will heighten on Saturday, but
will also continue into Saturday night. Two to four inches of
rain will be possible Saturday night, adding on to any rain
received earlier. No flash flood watches have yet been posted, as
comparisons with flash flood guidance continue, but the potential
remains. In addition, in the area where Hanna makes landfall,
strong winds of 35 to 45 mph with gusts to 55 mph will be
possible.

After making landfall, Hanna will turn west southwest and curve
across the northern tier of deep South Texas before crossing the
Rio Grande into Northeast Mexico. Hanna will weaken quickly after
she makes landfall, however, with Saturday night being the worst
period of the long term, and with improving conditions on Sunday.
Elevated shower and thunderstorm chances will remain in the area
through the weekend and into early next week, however the heavy
rainfall threat should taper off after Sunday for eastern
sections, though lingering for western sections into Monday.
Conditions will remain unsettled for much of the remainder of the
long term in the aftermath of Hanna. A weakness will remain in
the mid levels with ample tropical moisture persisting into the
middle of the week. High temperatures will be held down to around
90 to 95 for most areas, but ample moisture will help maintain
elevated heat index values to 100 degrees or higher. Temperatures
and heat index values will trend slowly higher during the week.

MARINE:

Now through Saturday: With a weak pressure gradient in place,
winds will remain light through this evening, but seas will
increase overnight as swell from Tropical Storm Hanna reaches the
lower Texas coastal waters. A Tropical Storm Warning is currently
in effect over all of the lower Texas coastal waters, with winds
and seas expected to rapidly deteriorate late tonight into
Saturday. In addition, showers and thunderstorms will increase
through the period, which will add to the hazardous conditions.
Follow the latest updates on Tropical Storm Hanna from the
National Hurricane Center.

Saturday Night through Tuesday...Tropical storm conditions may
still be ongoing Saturday night. High seas will be developed
across the northern marine areas. However, as Hanna continues
farther west and moves inland, conditions will rapidly improve.
Small craft should exercise conditions will be possible on Sunday,
with light to moderate southeast winds and low to moderate seas
on Monday and Tuesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  91  77  88  79 /  60  70  80  60
BROWNSVILLE          93  78  88  79 /  50  70  80  60
HARLINGEN            94  78  88  78 /  50  70  90  60
MCALLEN              98  79  90  79 /  40  70  90  60
RIO GRANDE CITY     100  80  92  78 /  30  60  80  60
SOUTH PADRE ISLAND   87  78  86  81 /  50  70  80  60

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...Tropical Storm Warning for TXZ249>251-254-256-257-351-353.

GM...Tropical Storm Warning for GMZ130-132-135-150-155-170-175.

&&

This product is also available on the web at:
HTTP://WEATHER.GOV/RGV

69-Farris/99
Hazardous weather outlook, Jul 24, 4:26 AM CDT, 4 hours 44 minutes before
Hazardous Weather Outlook
National Weather Service Brownsville TX
426 AM CDT Fri Jul 24 2020

TXZ249>251-254-256-257-351-353-250930-
Jim Hogg-Brooks-Inland Kenedy-Inland Willacy-Coastal Willacy-
Coastal Cameron-Coastal Kenedy-Northern Hidalgo-
426 AM CDT Fri Jul 24 2020

This Hazardous Weather Outlook is for portions of Deep South
Texas.

...Tropical Storm Warning in Effect for the Lower Texas Coast and
Northern Ranchlands...

.DAY ONE...Today and Tonight

A Tropical Storm Warning is in effect as Tropical Storm Hanna
approaches the lower to mid Texas coast. Refer to the Hurricane
Local Statements issued by the local forecast office to obtain
detailed information concerning potential hazards such as flooding
rain, winds, and storm surge.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A Tropical Storm Warning is in effect as Tropical Storm Hanna
approaches the lower to mid Texas coast. Refer to the Hurricane
Local Statements issued by the local forecast office to obtain
detailed information concerning potential hazards such as flooding
rain, winds, and storm surge.

An elevated risk of rip currents will be possible this weekend
into early next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS Brownsville Office while
following all local, state, and CDC guidelines.

GMZ130-132-135-150-155-170-175-250930-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
Coastal waters from Port Mansfield to the Rio Grande out 20 nm-
Coastal waters from Baffin Bay to Port Mansfield out 20 nm-
Waters from Port Mansfield to the Rio Grande extending from 20 to
60 nm-
Waters from Baffin Bay to Port Mansfield extending from 20 to
60 nm-
426 AM CDT Fri Jul 24 2020

This Hazardous Weather Outlook is for portions of The Gulf of
Mexico and The Laguna Madre.

...Tropical Storm Warning in Effect for the Laguna Madre and the
Offshore Waters...

.DAY ONE...Today and Tonight

A Tropical Storm Warning is in effect as Tropical Storm Hanna
approaches the lower to mid Texas coast. Refer to the Hurricane
Local Statements issued by the local forecast office to obtain
detailed information concerning potential hazards such as flooding
rain, winds, and storm surge.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A Tropical Storm Warning is in effect as Tropical Storm Hanna
approaches the lower to mid Texas coast. Refer to the Hurricane
Local Statements issued by the local forecast office to obtain
detailed information concerning potential hazards such as flooding
rain, winds, and storm surge.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS Brownsville Office while
following all local, state, and CDC guidelines.

TXZ248-252-253-255-250930-
Zapata-Starr-Southern Hidalgo-Inland Cameron-
426 AM CDT Fri Jul 24 2020

This Hazardous Weather Outlook is for portions of Deep South
Texas.

.DAY ONE...Today and Tonight

Heavy rainfall and isolated to scattered flash flooding may be
possible along the coastal areas as bands of rainfall from
Tropical Storm Hanna begin move across the lower Texas coast
tonight. Refer to the Hurricane Local Statements issued by the
local forecast office to obtain detailed information concerning
potential hazards such as flooding rain, winds, and storm surge.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Heavy rainfall and isolated to scattered flash flooding may be
possible this weekend into early next week, along with gusts up to
tropical storm force. Refer to the Hurricane Local Statements
issued by the local forecast office to obtain detailed information
concerning potential hazards such as flooding rain, winds, and
storm surge.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS Brownsville Office while
following all local, state, and CDC guidelines.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 10:40 AM CDTCoastal Flood AdvisoryBROKenedy56 hr

Nearby

Flash Flood Watches in Texas, 2020Every flash flood watch in 2020

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.