Tropical Storm Sinlaku Threatens Guam as Category 3-4 Typhoon; FEMA Faces $10B Funding Backlog Ahead of Hurricane Season; CISA Warns of Iran-Linked Attacks on Critical Infrastructure

Tropical Storm Sinlaku intensifies in the western Pacific as Guam declares Condition of Readiness 3 with a potential Category 3-4 typhoon landfall projected by Monday. FEMA faces a $10 billion disaster reimbursement backlog and internal readiness concerns ahead of the 2026 Atlantic hurricane season. CISA and federal partners warn of ongoing Iran-linked cyberattacks targeting programmable logic controllers across government, water, and energy sectors, with a new Ivanti EPMM vulnerability added to the Known Exploited Vulnerabilities catalog. State-level updates include Colorado wildfire evacuations, a Kilauea volcanic eruption watch in Hawaii, Mississippi disaster designations, historic wildfires in Nebraska, and a boil water advisory in South Carolina. Full state-by-state coverage and sourced intelligence for emergency management professionals.

EM Morning Brief is your concise daily update on national and state-by-state emergency management news. Produced by Sitch Radio, an EOC Voices podcast.

Takeaways:

* Tropical Storm Sinlaku is projected to intensify into a Category 3 or 4 typhoon.

* The U.S. Coast Guard is actively coordinating a unified response across the Marianas region.

* FEMA faces significant challenges with disaster reimbursements amid the ongoing storm preparations.

* Communities throughout the nation are awaiting nearly $10 billion in disaster relief funding.

* Severe weather alerts have been issued for various regions, including heavy rainfall and potential flooding.

* Nebraska is experiencing historic wildfires, with the Morrill Fire having burned approximately 642,000 acres.

Sources

Guam / Northern Mariana Islands

• Guam Homeland Security — COR 3 Joint Information Center Release, April 10, 2026

• RNZ News — Tropical Storm Sinlaku strengthens, could hit CNMI as typhoon by Monday

FEMA

• WWNO/NPR — Communities waiting on billions in disaster funding, April 10, 2026

• WBUR Here & Now — FEMA worker says warning signs came early, April 9, 2026

CISA / Cyber

• ABA Banking Journal — CISA, federal agencies issue advisory on Iran-related cyberattacks

• The Hacker News — Iran-linked hackers disrupt U.S. critical infrastructure by targeting PLCs

• Qualys ThreatPROTECT — CISA added Ivanti EPMM CVE-2026-1340 to KEV catalog

• CISA — Known Exploited Vulnerabilities catalog, April 8, 2026 addition

NWS / NOAA

• NOAA Storm Prediction Center — Day 1 Convective Outlook, April 10, 2026

Travel Advisories

• U.S. Embassy to Angola and Sao Tome and Principe — Travel Advisory update, April 8, 2026

Colorado

• CPR News — Mandatory evacuations ordered for wildfire near Carter Lake, April 8, 2026

Hawaii

• USGS Hawaiian Volcano Observatory — Kīlauea Episode 44 precursory activity notice, April 8, 2026

• Spectrum Local News Hawaii — Major disaster declaration request pending, April 3, 2026

Mississippi

• USDA FSA — FEMA designates 3 counties in Mississippi as disaster areas, April 9, 2026

Nebraska

• Governor Pillen — Emergency declaration for wildfires in central/western Nebraska

South Carolina

• Clean Air and Water — Berkeley County boil water advisory, April 9, 2026

U.S. Virgin Islands

• St. Thomas Source — WAPA major units offline, power rotations, April 2–9, 2026

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