Friday’s brief covers two new CISA Known Exploited Vulnerabilities and a fresh Industrial Control Systems advisory, the NOAA 2026 Atlantic hurricane outlook issued from Lakeland, ongoing CDC Health Alert Network guidance on Ebola Bundibugyo, and material wildfire and severe-weather operations across Arizona, California, Colorado, New Mexico, Oklahoma, and Texas, including a Denver International ground stop and a statewide South Texas flood watch through Memorial Day. 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
• CISA KEV expansion: Two new vulnerabilities added May 21, Langflow (CVE-2025-34291) and Trend Micro Apex One on-premise (CVE-2026-34926). Federal agencies and aligned operators should patch within the standard remediation window.
• CISA ICS Advisory: ICSA-26-141-01 published May 21, operational technology and industrial control system asset owners should review vendor mitigations.
• 2026 Atlantic hurricane outlook: Below-normal season projected by NOAA, with 8 to 14 named storms, 3 to 6 hurricanes, and 1 to 3 major. No tropical formation expected next seven days, but season begins June 1.
• Ebola Bundibugyo: CDC HAN-00530 and Worldwide Caution travel guidance remain in effect, with funneled entry for returning travelers from DRC, Uganda, South Sudan through Dulles.
• California Sandy Fire: About 2,115 acres, containment building from 22 to 30 percent, more than 17,000 still under evacuation orders with downgrades in progress.
• Colorado and Oklahoma Sharpe Fire: 29,209 combined acres, 80 percent contained, Colorado portion fully contained as of May 20.
• Colorado tornado warnings and Denver ground stop: NWS-issued tornado warnings for Logan and Kit Carson Counties May 21 evening, with an FAA ground stop at DIA for high winds ahead of holiday travel.
• New Mexico Seven Cabins Fire: 16,703 acres, 6 percent contained, 834 personnel assigned in the Capitan Mountain Wilderness.
• Arizona fire restrictions: BLM and Arizona State Forestry implement seasonal restrictions effective May 21, 8 a.m.
• Texas flooding: Statewide flood watch across South Texas through May 25, Texas SEOC at Level II Escalated Response.
• NIFC year-to-date: Roughly 28,759 wildfires and 2.3 million acres burned, well above the ten-year average.
Sources
CISA
• CISA Adds Two Known Exploited Vulnerabilities to Catalog — May 21, 2026 KEV update
• Known Exploited Vulnerabilities Catalog — current list
• ICS Advisories — index including ICSA-26-141-01
NOAA / NHC
• NOAA predicts below-normal 2026 Atlantic hurricane season — May 21 announcement
• Graphical Tropical Weather Outlook — National Hurricane Center
CDC / HHS / State Department
• Ebola Disease Outbreak in the Democratic Republic of the Congo and Uganda — HAN-00530
• CDC Mobilizes International Response Following Ebola Disease Outbreak in DRC and Uganda
• Travel Advisories — Travel.State.gov
• Worldwide Caution — U.S. Department of State
NIFC / InciWeb
• Incident Management Situation Report — Thursday, May 21, 2026, 0730 MDT
• InciWeb — Incident Information System
Arizona
• BLM Arizona — Dry conditions trigger fire restrictions in central and western Arizona
California
• Sandy Fire — Simi Valley, Ventura County Emergency
• Sandy Fire reaches 2,100 acres with 22% containment, evacuation orders remain — CBS Los Angeles
• Containment grows on California wildfire that forced thousands to evacuate — Insurance Journal
Colorado
• Sharpe Fire — Baca County, Colorado portion 100% contained, KRDO
• Sharpe Fire combined acreage and 80% containment update — News Channel 10
• A flash drought in southeastern Colorado primed plains for the Sharpe fire — Colorado Sun
• FAA orders ground stop for Denver International Airport — KRDO
• Active Alerts — NWS Denver / Goodland tornado warnings May 21
New Mexico
• NM Fire Info — Seven Cabins Fire Daily Update, May 20, 2026
• New Fire Start on Magdalena Ranger District — Mill Fire
Oklahoma
• Sharpe Fire in Oklahoma, Colorado burns over 29,000 acres, 80% contained — News Channel 10
Texas
• Thursday, May 21, 2026: Flood watch issued for all of South Texas — KRGV
• Texas Division of Emergency Management — Press Releases
• Texas flood threat: Days of heavy rain slam South through Memorial Day — Fox Weather
