Cedric breaks down the May 11 EM Morning Brief: Michigan Governor Gretchen Whitmer’s state of emergency for Oakland County after a 42-inch Great Lakes Water Authority transmission main ruptured in Auburn Hills, a multi-day Brawley earthquake swarm that has logged more than 350 events, the opening forecast window for Kīlauea Episode 47, an active wildfire picture in Florida, Georgia, Arizona, and New Mexico, FAA ground stops at DFW and Love Field during a North Texas severe weather episode, and the expiration of DOE’s Section 202(c) emergency orders for the Puerto Rico Electric Power Authority ahead of hurricane season. 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.

Key Takeaways

• Michigan water emergency — A 42-inch GLWA transmission main rupture in Auburn Hills triggers a state of emergency, a six-community boil water advisory, and a minimum 14-day restoration timeline.

• Brawley swarm — More than 350 quakes in the Brawley Seismic Zone since Friday, peaking at M4.7 Sunday at 12:10 a.m. PT. No major damage reported.

• Kīlauea Episode 47 watch — USGS forecast window for Episode 47 opens today, May 11, and runs through May 14. Highway 11 open with caution for residual tephra.

• Puerto Rico grid — DOE Section 202(c) emergency orders for PREPA are scheduled to expire today, May 11. Renewal action expected ahead of hurricane season.

• Wildfire posture — NIFC Southern Area at PL 4. 20 uncontained large fires nationally. Lochloosa West (FL), Cow Creek (FL), Pineland Road (GA), Hazen (AZ), and Hummingbird (NM) remain priority incidents.

• CDC HAN — Andes hantavirus cluster linked to a Cape Verde-Canary Islands cruise ship. CDC repatriating U.S. passengers to a Nebraska facility. Clinicians should consider imported cases.

• Texas severe weather and aviation — FAA ground stops at DFW and Love Field as a North Texas storm complex produced large hail, damaging wind, and isolated tornadoes.

• Mississippi recovery — MEMA continues damage assessments from the May 6 to 7 tornado outbreak. 26 injuries and roughly 500 homes damaged.

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Sources

CDC

• CDC HAN — 2026 Multi-country Hantavirus Cluster Linked to Cruise Ship — Health Advisory on Andes hantavirus cluster

DOE

• DOE — Energy Secretary Continues to Strengthen Puerto Rico’s Energy Grid with Renewed Orders — Section 202(c) renewals through May 11

• American Public Power Association — DOE Renews Orders to Strengthen Puerto Rico’s Grid — Industry summary of 202(c) extensions

FAA / Transportation

• FAA NAS Status — National Airspace System status board

• Travel and Tour World — FAA orders ground stop at DFW and Love Field — DFW and DAL ground stops, May 11

NIFC

• NIFC — Incident Management Situation Report (May 10, 2026) — Daily IMSR PDF

• NIFC — National Fire News — Top-line wildland fire activity summary

USGS — Volcanoes

• USGS — Kīlauea Volcano Updates — Hawaiian Volcano Observatory updates

• USGS Volcano Notice — May 10, 2026 (HVO) — Most recent Kīlauea status notice

USGS — Earthquakes

• USGS — Latest Earthquakes Map — Real-time global seismic activity

Arizona

• FOX10 Phoenix — Hazen Fire latest updates — Buckeye-area Hazen Fire status

California

• The Spokesman-Review — Earthquake swarm shakes Imperial County with 4.7 magnitude quake — Brawley swarm peak at M4.7

• CBS Los Angeles — Swarm of more than 100 earthquakes rattles Imperial County — Swarm context and city response

Florida

• WCJB — Lochloosa West wildfire nears 1,000 acres in Alachua County — Lochloosa West size and notifications

• 352today — Cow Creek Wildfire Grows to 1,400 Acres in Levy County, Road Closures and Evacuations in Effect — Cow Creek evacuations and shelter

Georgia

• Georgia Forestry Commission — Southern Georgia Burning Restrictions Eased — Burn ban roster

• WTOC — South Georgia burn ban reduced to 17 counties — Updated 17-county ban list

Hawaii

• USGS — Kīlauea Volcano Updates — Episode 47 forecast window

• NPS — Hawaiʻi Volcanoes Alerts and Conditions — Park closures and Highway 11 status

Michigan

• FOX 2 Detroit — Whitmer declares state of emergency after water main break in Oakland County — Governor’s emergency declaration

• City of Auburn Hills — State of Emergency, Water Main Break and Boil Water Advisory — Local emergency declaration and boil-water guidance

• ClickOnDetroit — What we know so far: Oakland County water main break, boil-water advisories and closures — Affected communities and impacts

Mississippi

• WTOK — MEMA provides update on injuries, recovery efforts from Wednesday’s storms — MEMA tornado outbreak recovery update

New Mexico

• NM Fire Info — Statewide wildfire information portal

Oklahoma

• Federal Register — Administrative Declaration of a Disaster for the State of Oklahoma — May 7, 2026 disaster declaration

Puerto Rico

• DOE — Energy Secretary Continues to Strengthen Puerto Rico’s Energy Grid with Renewed Orders — Section 202(c) order term ends May 11

Texas

• FOX 4 Dallas-Fort Worth — Severe storms bring threat of large hail and 75 mph winds — North Texas severe weather coverage

Storm Prediction Center — Day 1 Convective Outlook (May 10, 2026) — SPC convective outlook covering Texas