Coast Guard Sector Houston-Galveston Marine Safety Information Bulletin 14-24 – Invest 91L Potential Impacts and Precautions

The Captain of the Port (COTP) is monitoring the progression of a tropical low-pressure system in the Gulf of Mexico. COTP Houston-Galveston strongly encourages all port partners and the maritime community to take prudent measures to ensure a high state of readiness, as track projections show potential impact to Southeast Texas and surrounding areas. National Weather Service is reporting potential of high winds of 25 to 35 knots with gusts up to 40 knots and wave heights gradually building to the 4 to 5 foot range in the waters near the entrance to Galveston Bay. In addition to the wind and storm surge threat, anticipated rainfall across the Houston-Galveston area is expected to range from 4 to 8 inches from Monday, June 17th through Thursday, June 20th.

All vessels and facilities are encouraged to begin planning to take preventive measures in advance of the storm. Such measures may include the following:

•Safety measures should be taken to secure missile hazards, nonessential equipment, andloose gear.
•Container stacking protocols should be reviewed and implemented accordingly to predictedsustained winds by the National Weather Service.
•Oil transfer terminals should be prepared to drain all loading arms and hoses of product.Blank off hoses, and empty/clean small discharge containment prior to storm arrival.
•Ensure vessel moorings are adequate for the predicted wind and surge. Mooring lines readyto be doubled up with due consideration given effects of predicted storm surge. Considerleaving port if moorings are not adequate.
•Sufficient number of officers and crew onboard to tend mooring lines or get underway.
•Vessel ballasted to ensure maximum safety.
•All side ports, hatches, portholes, and other openings are closed and secured.
•A continuous radio watch maintained on VHF-FM Channel 16 and designated VesselTraffic Service frequencies.
•Ensure that anchor and anchoring equipment is in good working condition.
•Spare mooring lines/and or wires should be inspected and made ready.

Additional guidance regarding the tropical weather may be issued in the form of further Marine Safety Information Bulletins, Broadcast Notice to Mariners, or other forms as necessary. Please contact the Sector Houston-Galveston Command Duty Officer at (866) 539-8114 if you have any questions or comments.