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Subject:Fw: Tropical Storm Nicholas 4 PM Update | September 13, 2021
Date:Monday, September 13, 2021

PCCA Customers and Stakeholders:

See below NWS Briefing in attached slides.

Key Take-Aways

  *   Tropical Storm Nicholas is located about 51 miles east-southeast of Port Aransas and is forecast to make landfall sometime this evening near Matagorda Bay; still the potential for Nicholas to become a hurricane before landfall
  *   Nicholas’s track has shifted farther east than previous forecast; rain amounts have trended downwards
  *   Storm surge producing coastal flooding and winds 50-60 MPH with stronger gusts near 70 MPH expected to continue for coastal areas from Port Aransas towards Matagorda Bay…40-50 MPH with gusts near 60 MPH for coastal areas south of Port Aransas
  *   Wave heights 12-16 ft nearshore, 15-20 ft offshore will continue through tonight; this will damage coastal infrastructure (piers, jetties, marinas) and increase water levels along the coast
  *   Main window for hazards in South Texas is now through Tuesday morning, but elevated seas continue through mid-week
     *   Heavy Rain: Now through 7 AM Tuesday
     *   Tropical Storm Force Winds: Now through 12 AM Tuesday for areas south of Port Aransas, now through 8 AM for areas north of Port Aransas
     *   Storm Surge: Highest water levels 7 PM today to 7 AM Tuesday
     *   Waves > 6 ft: Now through Wednesday

For More Information:
Emergency Operations Center (EOC)
Port of Corpus Christi Authority
222 Power Street
Corpus Christi TX 78401
361.882.1182 (24 hour - report an emergency)<><>

From:<> <<>> On Behalf Of NWS Corpus Christi
Sent: Monday, September 13, 2021 4:24 PM
To: Tyler Castillo - NOAA Federal <<>>
Subject: Tropical Storm Nicholas 4 PM Update | September 13, 2021


Good Afternoon South Texas partners,

Here is the latest information as of 4 PM CDT concerning Tropical Storm Nicholas
...Hurricane Watch remains in effect for coastal counties from Port Aransas northward...
...Tropical Storm Warning remains in effect over much of the Coastal Plains...
...Storm Surge Warning remains in effect from Port Aransas northward...
...Flash Flood Watch remains in effect for the Victoria Crossroads and Northern Coastal Bend...
...Coastal Flood Advisory now in effect from Port Aransas southward

What's New:

  *   The Storm Surge Watch south of Port Aransas has been replaced with a Coastal Flood Advisory
  *   The Flash Flood Watch has been cancelled for the southern Coastal Bend
  *   Additional rainfall amounts of 2-3" possible across the Northern Coastal Bend

Summary of 4 PM Information

Location: 51 miles east of Port Aransas
Maximum Sustained Winds: 65 MPH
Present Movement: North-northeast at 12 MPH
Minimum Central Pressure: 1000 mb


Tropical Storm Nicholas continues to move to the north just offshore the Middle Texas coast. Rain bands associated with this system will spread inland across the region this evening and overnight with tropical storm force winds possible. A general north-northeast motion is forecast this evening with the system expected to make landfall this evening along the mid to upper Texas coast tonight. Recent aircraft data indicates strengthening within Tropical Storm Nicholas this afternoon with sustained winds now up tp 65 MPH. Some additional strengthening is possible this afternoon and evening, and Nicholas could be near hurricane strength as it makes landfall.

Heavy rain with occasional flooding appears to be the primary impact through Tuesday morning, mainly across the Northern Coastal Bend and the Victoria Crossroads. Additional rainfall totals will generally range from 2 to 3 inches across the Northern Coastal Bend with isolated higher amounts. As a result, flash flooding remains possible. As bands of showers and storms move inland this evening, a few tornadoes will be possible. Tropical storm strength winds of 55-65 mph, with gusts near 75 mph are expected over the northern Coastal Bend; tropical storm force winds of 40-50 mph, gusting around 60 mph for the rest of the warned area. Should the system strengthen into a hurricane, stronger winds would be expected in the current hurricane watch area. Coastal flooding will continue overnight with inundation of 2-4 feet expected north of Port Aransas and around 1 foot of inundation expected south of Port Aransas. In addition, there is a high risk of rip currents today and tomorrow.

South Texas Impacts:

          - Northern Coastal Bend: Tropical storm force winds from 55-65 MPH with gusts to 75 MPH (hurricane strength)
          - Rest of warned area: Tropical storm force winds from 40-50 MPH with gusts to 60 MPH.

Rainfall: Additional rainfall of 2-3" is possible in the northern coastal bend and Victoria Crossroads.

Storm Tides: Up to 2-4 feet of inundation north of Port Aransas. Around 1 foot south of Port Aransas.

Tornadoes:  A few tornadoes will be possible across the Northern Coastal Bend

         - Nearshore:12-16 feet this afternoon and evening. Subsiding tomorrow.
         - Offshore: 15-20 feet this afternoon and evening. Subsiding tomorrow.

Rip Current Risk: There is a high risk of rip currents today and Tuesday

Next Update:

Around 11 PM CDT this evening.


Additional Information Resources:

NWS Corpus Christi Contact Numbers:  888-579-9731<tel:888-579-9731> or 361-289-0725<tel:361-289-0725>
National Hurricane Center:<>
NWS Corpus Christi:<>
Local Tropical Webpage:<>

Tyler Castillo & Jake Eldred
NWS Corpus Christi, TX
> to become a Weather-Ready Nation Ambassador Today!



Matthew Peterson, Manager
Moran Gulf Shipping Agencies, Inc
226 S. Enterprize Parkway, Suite 124
Corpus Christi, Texas 78405
Tel: (361) 884-0903 Fax: (361) 887-6132

Please reply to our Group Email Address ( on ALL messages to this office.

Please visit  for complete contact details
Notice posted on Monday, September 13, 2021

For quality assurance purposes please note well that while the above information is regularly vetted for accuracy it is not intended to replace the local knowledge or expertise pertaining to port conditions of our marine operations personnel. Port précis should always be verified by contacting the corresponding marine department of a particular location for the most up-to-date information.