@MDMEMA

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 Maryland
mdem.maryland.gov
Joined October 2008
  • Tweets30.8K
  • Following1.1K
  • Followers71.9K
4.4KMedia
Yesterday, MDEM participated in a full-day exercise at Aberdeen Proving Ground that brought together installation, local, regional, State, federal, and utility partners...
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to work through two developing scenarios and examine how cascading impacts could affect infrastructure, emergency response, coordination, and continuity of essential functions.
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MDEM staff are regularly participating and hosting exercises like these with our partners throughout the state to be prepared for whatever comes next making sure that all the partners are in the room and that resources are ready to go when they are needed. #PreparednessInAction
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On October 10th, the Maryland Department of Emergency Management (MDEM) joined local agencies and community partners at Washington County’s 2026 Emergency Preparedness Expo.
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MDEM staff shared resources to help residents prepare for emergencies, protect their families, and stay informed. Residents also learned about MDEM’s role in coordinating statewide preparedness, response, and recovery efforts. #preparednessinaction #wecare
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MDEM ALERT: Severe Thunderstorm Watch for Caroline, Kent, Queen Anne's and Talbot County in MD until 10:00pm. #mdwx
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MDEM ALERT: Severe Thunderstorm Watch for Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles, Frederick, Garrett, Harford, Howard, Montgomery, Prince Georges, St. Marys, Washington and Baltimore City in MD until 8:00pm. #mdwx
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MDEM ALERT: Flood Warning for Carroll and Frederick County in MD until 3:00am Monday. #mdwx
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Interoperability in action! Today, MDEM hosted state & local partners to explore the latest FirstNet capabilities. FirstNet keeps Maryland safe by ensuring seamless daily & emergency communication across public safety agencies. #Interoperability #MDReady #WeCare
Presenter from FirstNet giving opening remarks to attendees. On the screens behind the speaker is the title slide of the presentation for FirstNet Progress Updates and Coverage and Enhancement Workshop.

ALT Presenter from FirstNet giving opening remarks to attendees. On the screens behind the speaker is the title slide of the presentation for FirstNet Progress Updates and Coverage and Enhancement Workshop.

Presenter from FirstNet discussing the system's coverage with attendees. On the screens behind the speaker is an image of Maryland showing different points around the state.

ALT Presenter from FirstNet discussing the system's coverage with attendees. On the screens behind the speaker is an image of Maryland showing different points around the state.

Image of attendees having a discussion. The person in the light blue shirt is discussing an aspect of the FirstNet system while other attendees listen or take notes.

ALT Image of attendees having a discussion. The person in the light blue shirt is discussing an aspect of the FirstNet system while other attendees listen or take notes.

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🚨 WE ARE HIRING: Homeland Security & Preparedness Grants Branch Manager! 🚨 🔹 Lead grant personnel 🔹 Oversee full award lifecycle 🔹 Advise executive leadership on risk/compliance 🔹 Partner with accounting & program teams Apply today! 👇 jobapscloud.com/MD/sup/bulpr…
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MDEM has lowered the State Activation Level to "NORMAL" status following support of WSSC Water power disruption.
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Maryland Department of Emergency Management (MDEM) retweeted
Governor Wes Moore
@GovWesMooreSep 29
⚠️ RESIDENTS IN MONTGOMERY AND PRINCE GEORGE’S COUNTIES: Following a power outage at the Potomac Water Filtration Plant earlier today, residents may experience water service disruptions this evening. While water is safe to consume, @WSSCWaterNews is asking customers to only use water for essential use as crews continue to work on a resolution. Our office is coordinating with state and local officials, as well as @WSSCWaterNews, and we will provide updates as soon as possible.
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Maryland Department of Emergency Management (MDEM) retweeted
WSSC Water
@WSSCWaterNewsSep 29
Essential Water Use Only Request We’re asking customers to use water only as necessary, including limiting outdoor water use.
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MDEM has lowered the state activation level to "Normal" following impacts from the Nor'easter. We continue to work with local jurisdictions in a normal capacity to assess needs and respond to any additional impacts from the storm. Stay safe, Maryland! #wecare
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**ATTENTION BALTIMORE COUNTY RESIDENTS**
Baltimore County
@BaltCoGovSep 27
UPDATE: A diesel leak at the Baltimore County Detention Center in Towson was identified and stopped last night. Baltimore County, the Maryland Department of the Environment, the U.S. Coast Guard and additional partners are continuing efforts to contain and recover fuel from Long Quarter Branch, a tributary of Loch Raven Reservoir. Crews are assessing the extent of the spill, and cleanup is continuing around the clock. Residents near affected streams may notice a diesel odor over the next few days. People and pets should stay away from water with a visible sheen or diesel odor. There is no impact to public drinking water or private wells at this time, and water remains safe to drink. We will continue to provide updates as more information is confirmed.
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The Ocean City Police Department is asking Residents and visitors who need to enter or leave Ocean City during the high-tide period are strongly encouraged to use Route 90. Please plan ahead, allow extra travel time, and be prepared for changing road conditions and closure
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Know your route, avoid floodwater, and avoid unnecessary travel through Downtown Ocean City, particularly during high-tide periods. DO NOT DRIVE THROUGH FLOODWATER. If you cannot clearly see the roadway beneath the water, do not attempt to drive through it. Please stay safe.
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MDEM has raised the State Activation Level to "Enhanced" for continued monitoring and support of coastal storm impacts. #WeCare! #MdWx
This graphic outlines the four State Activation Levels (SALs) for emergency management, ordered from highest to lowest severity: 1. FULL (Red) Threshold: An incident of such magnitude that it may require response and/or recovery efforts and significant resources. Status: EOC (Emergency Operations Center) is fully staffed. 2. PARTIAL (Orange) Threshold: An incident or event requiring significant monitoring or resources. Status: Additional EOC staffing is brought in from agencies, functions, and supporting organizations. 3. ENHANCED (Yellow) Threshold: An incident or event requiring additional monitoring or resources. Status: CORE EOC staff are present, with potential augmentation from selected agencies, functions, and supporting organizations. 4. NORMAL (Green) Threshold: Routine operation with no incident or event anticipated. State Operations: 24/7 coordination & situational awareness through the MJOC (Maryland Joint Operations Center).

ALT This graphic outlines the four State Activation Levels (SALs) for emergency management, ordered from highest to lowest severity: 1. FULL (Red) Threshold: An incident of such magnitude that it may require response and/or recovery efforts and significant resources. Status: EOC (Emergency Operations Center) is fully staffed. 2. PARTIAL (Orange) Threshold: An incident or event requiring significant monitoring or resources. Status: Additional EOC staffing is brought in from agencies, functions, and supporting organizations. 3. ENHANCED (Yellow) Threshold: An incident or event requiring additional monitoring or resources. Status: CORE EOC staff are present, with potential augmentation from selected agencies, functions, and supporting organizations. 4. NORMAL (Green) Threshold: Routine operation with no incident or event anticipated. State Operations: 24/7 coordination & situational awareness through the MJOC (Maryland Joint Operations Center).

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Remain vigilant and have multiple ways of receiving alerts. Potential Impacts: ⚠Strengthening onshore flow combined with a near Full Moon will result in widespread minor tidal flooding, with moderate tidal flooding possible.
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⚠Gales (gusts of 35 to 40 knots) are expected across the Coastal Atlantic waters through Friday afternoon. ⚠Gales (gusts of 35 to 40 knots) are expected across the lower portions of the Tidal Potomac and Chesapeake Bay Friday afternoon through early Saturday afternoon.
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⚠Long-lasting widespread minor tidal/coastal flooding is expected to continue through the weekend ⚠Moderate tidal/coastal flooding expected with tonight’s high tide for Dorchester, Anne Arundel, and Saint Mary’s Counties #WeCare @MdWx
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