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CISA adds Eight Vulnerabilities to KEV; FEMA Montana, Idaho, Oregon Disaster Declarations Published

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On today’s EM Morning Brief, CISA adds eight actively exploited vulnerabilities to the Known Exploited Vulnerabilities Catalog with a May 11 federal remediation deadline. FEMA major disaster declarations for Montana, Idaho, and Oregon tied to December 2025 storms were published in the Federal Register, opening Public Assistance funding. Super Typhoon Sinlaku recovery continues across Guam and the CNMI under active federal emergency and public-health emergency determinations. Red Flag Warnings span the Plains, Southwest, and High Plains with critical fire weather peaking midweek, and the Hawaiian Volcano Observatory revises its Kilauea Episode 45 forecast window to April 21 through 26. State updates cover Texas flash flooding, Wisconsin tornado recovery, Oklahoma wildfire containment, and the ongoing response to the Minidoka Memorial Hospital cyber incident in Idaho. 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 update: Eight new actively exploited CVEs added April 20 (PaperCut, JetBrains TeamCity, Kentico, Quest KACE, Zimbra, three Cisco SD-WAN Manager). Federal patch deadline May 11.

FEMA declarations published: Major Disaster Declarations for Montana (DR-4901), Idaho (DR-4905), and Oregon formally appear in the Federal Register, opening Public Assistance for December 2025 storm damage.

Sinlaku recovery: Federal emergency declarations and HHS public-health emergency remain in effect for Guam and the CNMI. Power and water restoration on Saipan, Tinian, and Rota may take weeks.

Kilauea Episode 45: HVO revises the lava-fountaining forecast window to Tuesday, April 21 through Sunday, April 26. Summit remains paused but inflating.

Fire weather: Red Flag Warnings active across Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, and Wyoming. Wednesday expected to be most dangerous day of the week.

Texas flash flooding: Flash Flood Warning along San Antonio to New Braunfels corridor; SAFD reports nine water rescues. Houston metro sees localized urban flooding with rainfall rates up to three inches per hour.

Wisconsin storm response: SEOC Update 4 reports 28 resource requests and continued coordination with county and tribal emergency managers following confirmed April 14 tornadoes and flood damage.

Idaho hospital cyber incident: Minidoka Memorial Hospital restores imaging services April 19. Blackwater ransomware group claims April 17 and threatens data publication after April 24.

April 17 tornado cleanup: NWS confirms a high-end EF-2 in Lena, Illinois; EF-1 tornadoes in Jo Daviess County, Illinois and Washington County, Iowa; and an EF-2 in Rochester, Minnesota with two injuries.

Sponsors

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Sources

CISA

CISA Alert — Eight new KEV entries (April 20, 2026) — PaperCut, JetBrains TeamCity, Kentico Xperience, Quest KACE SMA, Zimbra, and three Cisco Catalyst SD-WAN Manager CVEs; federal patch deadline May 11, 2026

CISA — Known Exploited Vulnerabilities Catalog — Authoritative catalog of actively exploited CVEs

FEMA

Federal Register — Montana Major Disaster Declaration (DR-4901-DR) — Public Assistance Only for December 9-11, 2025 severe storms and flooding

Federal Register — Idaho Major Disaster Declaration (DR-4905-DR) — Public Assistance Only for December 16-18, 2025 straight-line winds

Federal Register — Oregon Major Disaster Declaration — Public Assistance Only for December 15-21, 2025 storms and landslides

FEMA — DR-4901-MT page — Montana disaster assistance details and deadlines

FEMA — Emergency Declaration for Guam — April 17, 2026 press release on Super Typhoon Sinlaku support

NIFC and wildland fire

NIFC — National Fire News — April 20, 2026 daily national fire activity summary

NICC — Incident Management Situation Report — Daily SITREP from the National Interagency Coordination Center

InciWeb — Incident Information System — Active wildland-fire and incident records

USGS and volcano

USGS — Kīlauea Volcano Updates — HVO summit eruption status and Episode 45 forecast window

HVO Volcano Notice — April 19, 2026 — Revised Episode 45 timing: April 21 to April 26 window

USGS — Significant Earthquakes 2026 — Catalog of significant events including the April 20 M7.4 near Miyako, Japan

NOAA/NWS

NOAA Storm Prediction Center — Day 1 Convective Outlook — National severe-weather risk areas

NOAA SPC — Fire Weather Outlook — Red Flag / critical fire-weather areas

HHS/CDC

HHS ASPR — Public Health Emergency: CNMI and Guam / Typhoon Sinlaku — April 17, 2026 determination by the Secretary

CDC HAN — Medetomidine Advisory — Prior HAN on illicit-drug-supply risk (context)

DHS

DHS — National Terrorism Advisory System — NTAS bulletin page (no new bulletin in the last 24 hours)

FAA

FAA — Daily Air Traffic Report — Weather-related delays and advisories

FAA — National Airspace System Status — Real-time airport and NAS status

Alabama

NWS Birmingham — Regional fire-weather and forecast

Alaska

Alaska Earthquake Center — Adak M4.7 — April 20, 2026 Aleutian event, no tsunami

Arizona

NWS SPC — Fire Weather Outlook — Red Flag conditions across the Southwest

Arkansas

Arkansas Division of Emergency Management — State-level EM updates

California

Cal Fire — Incidents — Active incident list and evacuation information

Colorado

BoulderCAST — This Week in Colorado Weather (April 20, 2026) — Red Flag timing and wind outlook

Florida

Florida State Watch Office — Florida Division of Emergency Management situation reports

NWS Miami — Hazardous Weather Outlook — South Florida severe and marine hazards

Hawaii

Hawai‘i County — Emergency Proclamation (April 2026) — Severe weather and concurrent hazards proclamation

HVO — Kīlauea Notice April 19, 2026 — Episode 45 revised window

Idaho

DataBreaches.net — Minidoka Memorial Hospital update (April 20, 2026) — Imaging services restored; Blackwater leak deadline April 24

Comparitech — Blackwater claim and hospital impact — Ransomware claim and hospital response

Idaho Office of Emergency Management — State-level disaster and mitigation updates

Illinois

NWS Quad Cities — April 17, 2026 event summary (updated April 20) — Confirmed EF-2 and EF-1 tornadoes across western Illinois

WQAD — April 17 tornado outbreak recap — Damage assessments and local impact

Indiana

NWS Indianapolis — Freeze Warning — East-central and southeast Indiana

Iowa

NWS Quad Cities — April 17 event summary (updated April 20) — Washington County EF-1 details

Kansas

NWS SPC — Fire Weather Outlook — Red Flag areas across southern Plains

Minnesota

NWS — April 17 Tornadoes (updated April 20) — Rochester EF-2 and regional damage

Mississippi

WLOX — April showers? More like April drought — Dry-pattern context and rainfall totals

Montana

FEMA — DR-4901 designated areas — County eligibility for Public Assistance

Nebraska

KGFW — Red Flag Warning for central Nebraska — Noon to 9 p.m. Monday critical fire weather

Nevada

NWS SPC — Fire Weather Outlook — Southwest wind and fire-weather details

New Mexico

KRTN — Schwachheim Fire Update, April 20, 2026 — Local fire-line assessment

Ohio

NWS Wilmington — Freeze Warning (April 20, 2026) — Southern Ohio overnight freeze

Oklahoma

Oklahoma Department of Agriculture — Fire Situation Report (April 20, 2026) — Lightning Roll and Sunny Fire containment

Oregon

Federal Register — Oregon Major Disaster Declaration — Public Assistance Only for December 2025 storms and landslides

South Dakota

Men’s Journal — Red Flag Warnings across the High Plains — South Dakota, Nebraska, and Kansas zones through Monday evening

Texas

NWS San Antonio / Texas Storm Chasers — Flash Flood Warning along the San Antonio to New Braunfels corridor

Click2Houston — Houston severe threat, April 20, 2026 — Two to three inches per hour and heightened crash risk

Utah

Snoflo — Utah snowpack status — Statewide snowpack near 32 percent of normal

Washington

FEMA — Disasters and Other Declarations — Washington December 2025 winter-storm declaration

West Virginia

WCHS — Freeze Warning remains in effect for most of West Virginia — Monday night through Tuesday morning

Wisconsin

Wisconsin Emergency Management — SEOC Update 4 (April severe storms and flooding) — Resource requests and ongoing state coordination

WTMJ — Governor Evers state of emergency — April 15, 2026 declaration

Wyoming

NWS SPC — Fire Weather Outlook — High Plains critical fire-weather pattern

Guam

FEMA — Emergency Declaration for Guam — April 17, 2026 press release

Stars and Stripes — DoD schools to reopen, port operations (April 20, 2026) — Recovery status update from Guam

Commonwealth of the Northern Mariana Islands

Isla Public — FEMA damage assessment after Sinlaku landfall — Published April 19, 2026

HHS ASPR — Public Health Emergency: CNMI and Guam — Secretary’s April 17 determination



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