The multi-day heavy rain event across the Coastal Bend continued on the 8th as the low pressure system remained nearly stationary. Bands of showers and thunderstorms produced heavy rainfall that caused flash flooding over much of San Patricio and Nueces mainly during the morning.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CRP wrote it up.
The multi-day heavy rain event across the Coastal Bend continued on the 8th as the low pressure system remained nearly stationary. Bands of showers and thunderstorms produced heavy rainfall that caused flash flooding over much of San Patricio and Nueces mainly during the morning. Four day total rainfall amounts ranged from 10 to 15 inches from Nueces County northward to Victoria with a maximum amount of 18 inches near Rockport.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before the first event at Jul 8, 3:52 AM CST, 8 minutes earlier.
Area Forecast Discussion
National Weather Service Corpus Christi TX
452 AM CDT Thu Jul 8 2021
.SHORT TERM (Today through Friday)...
The mid level low has drifted a little south of where it was
yesterday appearing to be between HBV and BKS. The surface low
is also more to the south and has placed the stronger low level
convergence over the southern Coastal Bend where the bands of
showers have focused the locally heavy rain threat at this time.
The mid level low is expected to be nearly stationary during
the day and then drift to the west to near the Rio Grande north
of Laredo early Friday morning.
Very deep moisture will remain over the coastal plains today
and tonight. Models depict the low level flow will strengthen
over the Gulf waters due to the low pressure area over south
Texas that will maintain a strong low level convergence axis
along the coast. Southeasterly flow from 925-850H will be from
30-35 knots. Only limiting factor during the period is the lack of
instability. But with deep warm layer with freezing levels above
16 kft, efficient warm rain processes will lead to locally heavy
rainfall again across areas that are saturated from the previous
rains. WPC maintained a Moderate risk of excessive rainfall for
the Coastal Bend and Victoria Crossroads through tonight.
The mid level low is expected to move into northern Mexico on
Friday. But low level convergence will stay over the coastal
plains in the morning and maintain flooding rain threat as any
additional rain amounts will cause problems. Rain chances may
finally begin to decrease by the afternoon over the coastal plains
as drier air moves in from the east with locally heavy rain
more likely over the Brush Country Friday afternoon. Extended the
Flash Flood Watch until 7 PM Friday for the Coastal Bend and
Victoria Crossroads.
The stronger onshore flow has increased the tide levels over
the southern Coastal Bend. Expect tides to reach advisory
criteria this morning. A Coastal Flood Advisory is in effect until
16Z this morning. A moderate risk of rip currents will continue
for the Gulf facing beaches today through Friday.
&&
.LONG TERM (Friday Night through Wednesday)...
Showers and thunderstorms will become isolated to scattered in
coverage Friday night into the weekend as ridging in the mid-levels
begins to set in and PWATs decrease to around 1.5-2.0" in response.
Isolated to scattered showers and thunderstorms will be possible
each day through the long-term period. With high pressure in place,
expect these to be primarily driven by daytime heating.
Minor coastal flooding and an elevated risk for rip currents are
possible through the weekend as wave periods remain on the higher
side and P-ETSS guidance continues to suggest tide levels at or just
above 1.5 feet.
&&
.MARINE...
Numerous showers and a few thunderstorms will continue today
through Friday as an upper low remains nearly stationary over
South Texas today and then drifts west into northern Mexico. Some
of this activity could produce brief waterspouts and locally
higher winds and seas. Moderate to strong onshore flow will occur
over the Gulf waters from early this morning through early Friday
morning with a Small Craft Advisory in effect with SCEC conditions
over the bays.
Moderate onshore flow will continue Friday night through the
weekend. Weak to moderate flow returns Monday but could become
moderate at times through the end of the period. Increased wave
heights from swells related to Tropical Storm Elsa continue through
the weekend and are expected to come down Sunday. Small Craft
Exercise Caution conditions are likely throughout this time-frame.
Isolated to scattered showers and thunderstorms will be possible
daily from Saturday through the end of the period.
&&
.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi 83 75 85 77 88 / 90 80 70 40 30
Victoria 80 75 83 76 89 / 90 80 80 40 40
Laredo 84 75 88 76 93 / 60 60 70 40 30
Alice 83 75 86 76 90 / 80 70 70 30 30
Rockport 83 76 85 79 89 / 100 80 70 40 30
Cotulla 83 74 86 76 93 / 60 60 70 50 40
Kingsville 84 75 86 76 88 / 80 80 70 30 30
Navy Corpus 84 78 85 81 88 / 90 80 70 40 30
&&
.CRP WATCHES/WARNINGS/ADVISORIES...
TX...Flash Flood Watch through Friday evening For the following
zones: Aransas Islands...Bee...Calhoun Islands...Coastal
Aransas...Coastal Calhoun...Coastal Kleberg...Coastal
Nueces...Coastal Refugio...Coastal San Patricio...Goliad...
Inland Calhoun...Inland Kleberg...Inland Nueces...Inland
Refugio...Inland San Patricio...Jim Wells...Kleberg
Islands...Live Oak...Nueces Islands...Victoria.
Coastal Flood Advisory until 11 AM CDT this morning For the
following zones: Kleberg Islands...Nueces Islands.
GM...Small Craft Advisory until 7 AM CDT Friday For the following
zones: Coastal waters from Baffin Bay to Port Aransas out
20 NM...Coastal waters from Port Aransas to Matagorda Ship
Channel out 20 NM...Waters from Baffin Bay to Port Aransas
from 20 to 60 NM...Waters from Port Aransas to Matagorda
Ship Channel from 20 to 60 NM.
&&
TMT/89...SHORT TERM
HAA/72...LONG TERMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
456 AM CDT THU JUL 8 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0436 AM FLOOD 5 NW FLOUR BLUFF 27.70N 97.38W
07/08/2021 NUECES TX EMERGENCY MNGR
HIGH WATER COVERING ROADS ON HOLLY AND
STAPLES.
&&
EMFThe Corpus Christi radar (KCRP), 22 km away, was scanning. The volume nearest the first event began at 09:57 UTC.
11 flash flood. Local standard time, as filed.
FM 70 between Chapman Ranch and Bishop was closed due to flooding along with Weber Road to the southwest of Corpus Christi.
Multiple streets and intersections were under high water across the southern portions of Corpus Christi. Several cars became stranded in the high water.
Highway closures occurred due to high water along Highway 77 from Robstown to Calallen and along Interstate 37 from Calallen to Annaville.
High water occurred at multiple intersections along Crosstown Expressway, along Highway 44 between Robstown and Corpus Christi. Leopard Street and North Padre Island Drive was closed. Several cars became stranded in the water.
Interstate 37 closed due to flooding between Mathis and Edroy. Several roads closed in the communities of Mathis, Odem, and Sinton. SH 359 underpass in Mathis closed due to flooding.
State Highway 35 was closed due to flooding.
State Highway 361 on Mustang Island had water covering the road.
FM 774 east of Refugio was closed due to flooding.
Multiple roads were closed due to flooding around Ingleside.
FM 1069 and Highway 35 near Aransas Pass was closed due to flooding.
Multiple roads around San Diego had water covering the roadways.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2021Every state in 2021This day in weather historyWarnings in Texas, July 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 977074, 977073, 977076, 977075, 977083, 977087, 977086, 977081, 977085, 977084, 977088.