Update on Hurricane Hilary: Latest News and Flood Mitigation Strategies

(Article Posted 8/19/2023, 3:20 PM, Pacific Time)

Hurricane Hilary has weakened from a Category 3 to a Category 2 storm, but it still poses a significant threat to the Southwest United States, including Las Vegas
The storm is expected to bring catastrophic flooding and dangerous rain to the region, prompting authorities to issue warnings and recommend flood mitigation strategies.

Current Situation and Forecast

As of August 19th, 2023, Hurricane Hilary has been downgraded to a Category 2 hurricane with maximum sustained winds of 110 mph. The storm is expected to arrive in the Southwest on Saturday, with stronger winds and rainfall anticipated on Sunday. Hilary is forecasted to weaken as it approaches land due to colder waters.

Impact on Las Vegas Valley

Hurricane Hilary has already impacted the Las Vegas Valley with intermittent showers and traffic disruptions. The National Weather Service has recorded rainfall measurements and predicts more rain in the coming days.

Flood Mitigation Strategies for Local Businesses

With Hurricane Hilary’s remnants expected to bring intense rainfall and potential flash flooding to Las Vegas within the next 48 hours, businesses must act quickly to protect their facilities. The City’s flood control system may be overwhelmed by the projected rainfall totals, putting properties at risk. To mitigate potential flood damage, the Federal Emergency Management Agency (FEMA) advises clearing debris from drainage systems to facilitate flow. Sandbags and temporary barriers can also help divert water away from entrances.

NOAA estimates at least a 40% chance of flash flooding in the Las Vegas valley.

This graphic is created by the NWS/NCEP Weather Prediction Center (WPC). For more detailed information, please visit the WPC Excessive Rainfall Forecast page. Source: https://www.nhc.noaa.gov/refresh/graphics_ep4+shtml/204813.shtml?ero

This graphic was created by the NWS/NCEP Weather Prediction Center (WPC). For more detailed information, please visit the WPC Excessive Rainfall Forecast page. Source: NATIONAL HURRICANE CENTER and CENTRAL PACIFIC HURRICANE CENTER

In addition to general flood safety tips from FEMA, Las Vegas businesses should take these steps:

Inspect facilities to identify vulnerable areas like basements, parking lots, and ground-level equipment. Protect these sites with sandbags or flood gates. Ensure drains and storm sewers are clear.
Move vital records, electronics, inventory and other valuable assets to higher elevations or waterproof containers if possible.
Inform staff about flood risks and prepare emergency action plans. Designate responsibilities and provide contact information for emergencies during off-hours.
Closely monitor local weather forecasts and alerts. Have procedures to receive emergency notifications at all times.
Contact local emergency management offices for assistance and advice. Their expertise can help maximize flood protections.
Prepare business continuity plans for extended flooding that disrupts operations. Options could include remote work arrangements or temporary relocation.
Prioritize employee and public safety in all actions. Flood waters can be unexpectedly dangerous.
Consult flood mitigation professionals for property-specific recommendations if feasible.

Tailor strategies to your needs, but act quickly before the storm arrives. Advanced precautions can greatly reduce flood damage and allow faster recovery. Stay alert to all warnings, and cooperate fully with emergency officials.

Safety Tips and Precautions

Las Vegas residents should take the following safety precautions during Hurricane Hilary:

Avoid floodwaters and evacuate when necessary
Slow down and turn on headlights when driving
Stay away from storm drains and bypass flooded intersections
Refrain from driving until the storm has passed

Community Resources and Preparation

Nevada has taken several measures to prepare for Hurricane Hilary, including sandbag distribution and the closure of recreational spots due to potential flooding. Residents should stay informed on the latest updates and follow guidance from local authorities.

As Hurricane Hilary approaches the Southwest United States, Las Vegas residents must stay informed and prepared for its impact. By following safety tips and flood mitigation strategies, residents can minimize the damage caused by the storm and protect themselves and their property.

Update

(Update Posted 8/19/2023, 5:29 PM, Pacific Time)

NOAA’s office in Las Vegas predicts catastrophic flooding in the Death Valley National Park region, and further warns that infrastructure to the national park will be affected.

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