(TLP:CLEAR) Supplemental General Security & Resilience Highlights – March 19, 2026

The following posts are useful for general awareness of current physical security threats, natural disaster resilience, preparedness resources, mitigation guidance, and other security-related news or updates. These resources have been curated by the WaterISAC analyst team as items of broad relevance and benefit that do not need supplemental analysis at this time.

Natural Hazards/Climate Change

• Pineapple Express to bring flooding in Washington, British Columbia into Friday – AccuWeather
• Winds, blizzards and triple-digit heat put over half of the US in the path of extreme weather – AP
• Half a million lose power as storms batter US Midwest, Mid-Atlantic and South – Reuters
• 2026 fire season off to ominous start after relatively mild 2025 – Utility Dive
• Cyclone Narelle: ‘compact’, dangerous and unusually predictable – Conversation
• Measles Cases and Outbreaks – CDC

Operational Resilience

• Keeping Water Safe In A Connected World – Water Online
• Washington Flood Response 2025: From Training to Activation  – Domestic Preparedness
• Two officers, PG&E worker shot in Northern California after crew sent to replace pole – New York Post
• U.S. Bureau of Reclamation launches “Crack the Case” challenge to improve embankment dam safety – Smart Water Magazine
• NERC overstates reliability risks in long-term assessment: Grid Strategies – Utility Dive
• Serial arsonist connected to five “significant” Los Angeles area fires arrested, firefighters say – CBS News
• Sound Transit ramps up efforts to prevent copper wire theft – Kiro 7 News

Extremism/Terrorism

• New terror group with reported Iran ties claims 4 attacks across Europe – Fox News
• Antifa Cell Members Convicted in Prairieland ICE Detention Center Shooting – DOJ
• Pct. 4 deputies arrest bomb threat suspect in Cypress, recover assault rifle, bomb-making components – ABC 13 (Houston, TX)
• France opens investigation into two brothers arrested over jihadist plot – RFI
• Extremist Content Online: Pro-ISIS Online Communities Continue to Promote Use of Explosives; ISIS Celebrates American-Israeli War Against Iran and Killing of Ayatollah Ali Khamenei – Counter Extremism Project
• The Designation of 764 Network: Why Does it Matter? – Global Network on Extremism and Technology