Areal Flood Warning 3, NWS Brownsville, TX

072 
WGUS44 KBRO 070019
FLWBRO

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Brownsville TX
719 PM CDT Tue Jul 6 2021

TXC061-215-070500-
/O.EXT.KBRO.FA.W.0003.000000T0000Z-210707T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-Hidalgo TX-
719 PM CDT Tue Jul 6 2021

The National Weather Service in Brownsville has extended the

* Flood Warning for...
  West Central Cameron County in deep south Texas...
  Southeastern Hidalgo County in deep south Texas...

* Until midnight CDT.

* At 719 PM CDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Flooding is already occurring in the warned area. 
  Between 4 and 6 inches of rain have fallen earlier today.

* Frontage roads will be especially susceptible to additional 
  flooding.

* Some locations that will experience flooding include...
  Harlingen, Weslaco, Mercedes, Elsa, Progreso, Edcouch, Santa Rosa, 
  La Villa, Santa Maria, Indian Hills, Taylor Elementary School, 
  South Texas High School For Health Professions, Mercedes Police 
  Department, Mercedes Memorial Library, Ruben Hinojosa Elementary 
  School, Mercedes Junior High School, Mila Doce, Mercedes High 
  School, Weslaco Mid Valley Airport and Llano Grande Country Club.

Doppler radar is indicating showers and thunderstorms are 
redeveloping. Additional rainfall amounts of 1 to 2 inches are 
possible in the warned area.

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 2606 9802 2633 9800 2631 9781 2605 9784
      2605 9786 2607 9786 2606 9787 2607 9788
      2606 9789 2606 9793 2606 9794 2606 9795
      2605 9797 2606 9797 2607 9798 2606 9799
      2606 9800 2606 9801 2607 9801

$$

Mejia

272 
WGUS84 KBRO 070439
FLSBRO

Flood Statement
National Weather Service Brownsville TX
1139 PM CDT Tue Jul 6 2021

TXC061-215-070449-
/O.CAN.KBRO.FA.W.0003.000000T0000Z-210707T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-Hidalgo TX-
1139 PM CDT Tue Jul 6 2021

...FLOOD WARNING IS CANCELLED FOR WEST CENTRAL CAMERON AND 
SOUTHEASTERN HIDALGO COUNTIES...

Flood waters have receded. The Mercedes Police Department reported 
via telephone that widespread flooding in the city of Mercedes has 
ended. Therefore, flooding is no longer expected to pose a threat. 
However, some isolated areas of flooding are possible, so please 
continue to heed remaining road closures.

LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
      2605 9786 2607 9786 2606 9787 2607 9788
      2606 9789 2606 9793 2606 9794 2606 9795
      2605 9797 2606 9797 2607 9798 2606 9799
      2606 9800 2606 9801 2607 9801

$$

Tomaselli

Area Forecast Discussion
National Weather Service Brownsville TX
405 PM CDT Tue Jul 6 2021

.SHORT TERM (Now through Wednesday Night): The MCV that has been
spinning across portions of Deep South Texas since late last night
has slowly worked toward the lower Texas coast after drenching most
locations today. The 500mb low, robust moisture, and light to nearly
stationary flow will remain the main contributors to a persistent
heavy rainfall threat through Wednesday night.

A Flash Flood Watch was issued this morning and currently in effect
through Wednesday morning, but will likely need to be extended into
Thursday. WPC ERO guidance has the CWA in a slight risk today and
western counties tomorrow, with a moderate risk across the eastern
half of Deep South Texas tomorrow. PWAT values still expected to
jump to 2.25 and above, with a couple of models showing 2.5 and 2.75
inches at times. The average PWAT for early July across Deep South
Texas is near 1.75 inches. Expect the bulk of the rainfall to pivot
towards the coast into Wednesday night.

Temperatures will stay near normal overnight with muggy conditions
and potentially some patchy fog. Daytime highs reach into the mid to
upper 80s at best due to the thick cloud cover and rain.

.LONG TERM (Thursday through Tuesday):Upper trough remains in
place over south Texas through Friday. Latest model trends show a
slow retrograding of the upper low into north central Mexico through
the weekend as mid-level high pressure builds north into the
Southern Plains and the Bermuda ridge builds into the eastern Gulf
of Mexico. Best rain chances along with heavy rainfall continue
into Friday with rain chances lowering into the scattered range
for the weekend as some limited mid-level drier air moves into
the region and influence of the upper trough weakens. By early
next week model consensus drops rain chances to isolated at best.
Temperatures to remain below normal through Friday with recovery
back towards normal this weekend.

Widespread heavy rainfall remains in the forecast for Thursday
with WPC maintaining much of Deep South Texas in a slight chance
for rainfall exceeding flash flood guidance (excessive rainfall).
Rainfall rates from the strongest thunderstorms likely to exceed
2 inches per hour with pwats between 2-2.5 inches producing very
efficient rain producers. Another 2-3 inches of widespread
rainfall is not out of the question Thursday into Thursday night
possibly aggravating any potential on-going flooding in poor
drainage and low-lying areas. Flash Flood watches may need to be
extended.

&&

.MARINE:(Now through Wednesday Night): Light to moderate
southeasterly winds and moderate seas are expected to continue
through Wednesday night. Showers and thunderstorms will continue as
well, with higher winds and seas near any thunderstorms, as well as
occasional to frequent lightning and heavy rainfall.

Thursday through Sunday...A modest pressure gradient sets up and
persist along the Lower Texas coast and the Western Gulf of
Mexico through next weekend. High pressure to extend east to west
over the Gulf and Lower pressure will reside over west Texas and
NE Mexico. Some occasional periods of exercise caution conditions
are expected on both the Laguna Madre and the Gulf waters.
Scattered to numerous showers and thunderstorms are anticipated
through Friday with isolated to scattered activity for the
weekend. Heavy rain, gusty winds and locally higher winds and
lightning will continue to accompany the thunderstorms.

&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  76  85  77  85 /  80  90  80  80
BROWNSVILLE          77  86  77  86 /  80  90  80  80
HARLINGEN            75  85  75  84 /  80  90  80  80
MCALLEN              75  84  76  84 /  70  90  80  80
RIO GRANDE CITY      74  84  74  85 /  70  80  80  80
SOUTH PADRE ISLAND   78  83  78  83 /  80  90  80  80

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...Flash Flood Watch through Wednesday afternoon for TXZ248>257-351-
     353.

GM...None.
&&

This product is also available on the web at:
https://weather.gov/rgv

56-Hallman/Short-term
59-GB/Long-term
Schroeder-radar/meso

Hazardous Weather Outlook
National Weather Service Brownsville TX
404 PM CDT Tue Jul 6 2021

TXZ248>257-351-353-072115-
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
404 PM CDT Tue Jul 6 2021

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

.DAY ONE...Tonight

Locally heavy rainfall will be possible into tonight. Nuisance
flooding will be likely and isolated flash flooding will be
possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Heavy rainfall will be possible Wednesday through Friday.

Elevated rip current risk will be possible Wednesday through
Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

GMZ130-132-135-150-155-170-175-072115-
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-
404 PM CDT Tue Jul 6 2021

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

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Small craft advisory conditions due to increased swell will be
possible on the Gulf Thursday through Saturday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
145 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0141 PM     FLASH FLOOD      MERCEDES                26.15N 97.92W
07/06/2021                   HIDALGO            TX   BROADCAST MEDIA

            EASTBOUND I-2/US 83 NEAR MERCEDES - WATER
            COMPLETELY COVERING THE RIGHT TWO LANES AND
            SHOULDER. POLICE HAVE CLOSED THOSE LANES AS
            A RESULT.

&&

DR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
208 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0145 PM     FLASH FLOOD      2 ENE MERCEDES          26.16N 97.89W
07/06/2021                   HIDALGO            TX   NWS EMPLOYEE

            NWS EMPLOYEE REPORTED WATER UP TO THE TOPS
            OF WHEELS, SO TWO FEET DEEP, AND SEVERAL
            STALLED VEHICLES ALONG WB FRONTAGE ROAD NEAR
            RGV PREMIUM OUTLETS.

&&

DR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
216 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0205 PM     FLASH FLOOD      1 NNE MERCEDES          26.16N 97.91W
07/06/2021                   HIDALGO            TX   EMERGENCY MNGR

            MERCEDES EM REPORTED ONGOING WATER RESCUES
            FROM VEHICLES ALONG THE I-2 FRONTAGE ROAD
            AND HIGHWAY 491.

&&

DR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
241 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0127 PM     FLASH FLOOD      2 S COMBES              26.21N 97.72W
07/06/2021                   CAMERON            TX   EMERGENCY MNGR

            STANDING WATER ON WILSON AND FRONTAGE ROAD.

&&

DR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
249 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     FLASH FLOOD      PORT MANSFIELD          26.55N 97.43W
07/06/2021                   WILLACY            TX   CO-OP OBSERVER

            A CO-OP OBSERVER REPORTED 5.8 INCHES BETWEEN
            10:30 AM AND 2 PM ALONG WITH MINOR FLOODING
            IN THE PORT MANSFIELD AREA. ALSO REPORTED
            ONE HOUSE FLOODED.

&&

DR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
254 PM CDT TUE JUL 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0239 PM     FLASH FLOOD      1 NE MERCEDES           26.16N 97.91W
07/06/2021                   HIDALGO            TX   PUBLIC

            SOCIAL MEDIA VIDEO SHOWS WATER COMING UP TO
            HOMES IN THE MERCEDES AREA.

&&

DR