diff --git a/app/javascript/mastodon/features/notifications/components/moderation_warning.tsx b/app/javascript/mastodon/features/notifications/components/moderation_warning.tsx
new file mode 100644
index 0000000000..02ae9b371e
--- /dev/null
+++ b/app/javascript/mastodon/features/notifications/components/moderation_warning.tsx
@@ -0,0 +1,78 @@
+import { defineMessages, FormattedMessage, useIntl } from 'react-intl';
+
+import WarningIcon from '@/material-icons/400-24px/warning-fill.svg?react';
+import { Icon } from 'mastodon/components/icon';
+
+// This needs to be kept in sync with app/models/account_warning.rb
+const messages = defineMessages({
+  none: {
+    id: 'notification.moderation_warning.action_none',
+    defaultMessage: 'Your account has received a moderation warning.',
+  },
+  disable: {
+    id: 'notification.moderation_warning.action_disable',
+    defaultMessage: 'Your account has been disabled.',
+  },
+  mark_statuses_as_sensitive: {
+    id: 'notification.moderation_warning.action_mark_statuses_as_sensitive',
+    defaultMessage: 'Some of your posts have been marked as sensitive.',
+  },
+  delete_statuses: {
+    id: 'notification.moderation_warning.action_delete_statuses',
+    defaultMessage: 'Some of your posts have been removed.',
+  },
+  sensitive: {
+    id: 'notification.moderation_warning.action_sensitive',
+    defaultMessage: 'Your posts will be marked as sensitive from now on.',
+  },
+  silence: {
+    id: 'notification.moderation_warning.action_silence',
+    defaultMessage: 'Your account has been limited.',
+  },
+  suspend: {
+    id: 'notification.moderation_warning.action_suspend',
+    defaultMessage: 'Your account has been suspended.',
+  },
+});
+
+interface Props {
+  action:
+    | 'none'
+    | 'disable'
+    | 'mark_statuses_as_sensitive'
+    | 'delete_statuses'
+    | 'sensitive'
+    | 'silence'
+    | 'suspend';
+  id: string;
+  hidden: boolean;
+}
+
+export const ModerationWarning: React.FC<Props> = ({ action, id, hidden }) => {
+  const intl = useIntl();
+
+  if (hidden) {
+    return null;
+  }
+
+  return (
+    <a
+      href={`/disputes/strikes/${id}`}
+      target='_blank'
+      rel='noopener noreferrer'
+      className='notification__moderation-warning'
+    >
+      <Icon id='warning' icon={WarningIcon} />
+
+      <div className='notification__moderation-warning__content'>
+        <p>{intl.formatMessage(messages[action])}</p>
+        <span className='link-button'>
+          <FormattedMessage
+            id='notification.moderation-warning.learn_more'
+            defaultMessage='Learn more'
+          />
+        </span>
+      </div>
+    </a>
+  );
+};
diff --git a/app/javascript/mastodon/features/notifications/components/notification.jsx b/app/javascript/mastodon/features/notifications/components/notification.jsx
index c091554628..caf7f9bdc1 100644
--- a/app/javascript/mastodon/features/notifications/components/notification.jsx
+++ b/app/javascript/mastodon/features/notifications/components/notification.jsx
@@ -26,6 +26,7 @@ import { WithRouterPropTypes } from 'mastodon/utils/react_router';
 
 import FollowRequestContainer from '../containers/follow_request_container';
 
+import { ModerationWarning } from './moderation_warning';
 import { RelationshipsSeveranceEvent } from './relationships_severance_event';
 import Report from './report';
 
@@ -40,6 +41,7 @@ const messages = defineMessages({
   adminSignUp: { id: 'notification.admin.sign_up', defaultMessage: '{name} signed up' },
   adminReport: { id: 'notification.admin.report', defaultMessage: '{name} reported {target}' },
   relationshipsSevered: { id: 'notification.relationships_severance_event', defaultMessage: 'Lost connections with {name}' },
+  moderationWarning: { id: 'notification.moderation_warning', defaultMessage: 'Your have received a moderation warning' },
 });
 
 const notificationForScreenReader = (intl, message, timestamp) => {
@@ -383,6 +385,27 @@ class Notification extends ImmutablePureComponent {
     );
   }
 
+  renderModerationWarning (notification) {
+    const { intl, unread, hidden } = this.props;
+    const warning = notification.get('moderation_warning');
+
+    if (!warning) {
+      return null;
+    }
+
+    return (
+      <HotKeys handlers={this.getHandlers()}>
+        <div className={classNames('notification notification-moderation-warning focusable', { unread })} tabIndex={0} aria-label={notificationForScreenReader(intl, intl.formatMessage(messages.moderationWarning), notification.get('created_at'))}>
+          <ModerationWarning
+            action={warning.get('action')}
+            id={warning.get('id')}
+            hidden={hidden}
+          />
+        </div>
+      </HotKeys>
+    );
+  }
+
   renderAdminSignUp (notification, account, link) {
     const { intl, unread } = this.props;
 
@@ -456,6 +479,8 @@ class Notification extends ImmutablePureComponent {
       return this.renderPoll(notification, account);
     case 'severed_relationships':
       return this.renderRelationshipsSevered(notification);
+    case 'moderation_warning':
+      return this.renderModerationWarning(notification);
     case 'admin.sign_up':
       return this.renderAdminSignUp(notification, account, link);
     case 'admin.report':
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index a1b79881c5..9d127b6b03 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -473,6 +473,15 @@
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
   "notification.mention": "{name} mentioned you",
+  "notification.moderation-warning.learn_more": "Learn more",
+  "notification.moderation_warning": "Your have received a moderation warning",
+  "notification.moderation_warning.action_delete_statuses": "Some of your posts have been removed.",
+  "notification.moderation_warning.action_disable": "Your account has been disabled.",
+  "notification.moderation_warning.action_mark_statuses_as_sensitive": "Some of your posts have been marked as sensitive.",
+  "notification.moderation_warning.action_none": "Your account has received a moderation warning.",
+  "notification.moderation_warning.action_sensitive": "Your posts will be marked as sensitive from now on.",
+  "notification.moderation_warning.action_silence": "Your account has been limited.",
+  "notification.moderation_warning.action_suspend": "Your account has been suspended.",
   "notification.own_poll": "Your poll has ended",
   "notification.poll": "A poll you have voted in has ended",
   "notification.reblog": "{name} boosted your post",
diff --git a/app/javascript/mastodon/reducers/notifications.js b/app/javascript/mastodon/reducers/notifications.js
index 7230fabcae..64cddcb666 100644
--- a/app/javascript/mastodon/reducers/notifications.js
+++ b/app/javascript/mastodon/reducers/notifications.js
@@ -56,6 +56,7 @@ export const notificationToMap = notification => ImmutableMap({
   status: notification.status ? notification.status.id : null,
   report: notification.report ? fromJS(notification.report) : null,
   event: notification.event ? fromJS(notification.event) : null,
+  moderation_warning: notification.moderation_warning ? fromJS(notification.moderation_warning) : null,
 });
 
 const normalizeNotification = (state, notification, usePendingItems) => {
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index a1864a4562..9cb03bedf1 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -2180,7 +2180,8 @@ a.account__display-name {
   }
 }
 
-.notification__relationships-severance-event {
+.notification__relationships-severance-event,
+.notification__moderation-warning {
   display: flex;
   gap: 16px;
   color: $secondary-text-color;
diff --git a/app/models/admin/account_action.rb b/app/models/admin/account_action.rb
index 2b5560e2eb..3700ce4cd6 100644
--- a/app/models/admin/account_action.rb
+++ b/app/models/admin/account_action.rb
@@ -52,7 +52,7 @@ class Admin::AccountAction
       process_reports!
     end
 
-    process_email!
+    process_notification!
     process_queue!
   end
 
@@ -158,8 +158,11 @@ class Admin::AccountAction
     queue_suspension_worker! if type == 'suspend'
   end
 
-  def process_email!
-    UserMailer.warning(target_account.user, warning).deliver_later! if warnable?
+  def process_notification!
+    return unless warnable?
+
+    UserMailer.warning(target_account.user, warning).deliver_later!
+    LocalNotificationWorker.perform_async(target_account.id, warning.id, 'AccountWarning', 'moderation_warning')
   end
 
   def warnable?
diff --git a/app/models/admin/status_batch_action.rb b/app/models/admin/status_batch_action.rb
index 8a8e2fa378..4a10001935 100644
--- a/app/models/admin/status_batch_action.rb
+++ b/app/models/admin/status_batch_action.rb
@@ -65,7 +65,8 @@ class Admin::StatusBatchAction
       statuses.each { |status| Tombstone.find_or_create_by(uri: status.uri, account: status.account, by_moderator: true) } unless target_account.local?
     end
 
-    UserMailer.warning(target_account.user, @warning).deliver_later! if warnable?
+    process_notification!
+
     RemovalWorker.push_bulk(status_ids) { |status_id| [status_id, { 'preserve' => target_account.local?, 'immediate' => !target_account.local? }] }
   end
 
@@ -101,7 +102,7 @@ class Admin::StatusBatchAction
       text: text
     )
 
-    UserMailer.warning(target_account.user, @warning).deliver_later! if warnable?
+    process_notification!
   end
 
   def handle_report!
@@ -127,6 +128,13 @@ class Admin::StatusBatchAction
     !report.nil?
   end
 
+  def process_notification!
+    return unless warnable?
+
+    UserMailer.warning(target_account.user, @warning).deliver_later!
+    LocalNotificationWorker.perform_async(target_account.id, @warning.id, 'AccountWarning', 'moderation_warning')
+  end
+
   def warnable?
     send_email_notification && target_account.local?
   end
diff --git a/app/models/notification.rb b/app/models/notification.rb
index b2376c78a3..7e0e62683a 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -57,6 +57,9 @@ class Notification < ApplicationRecord
     severed_relationships: {
       filterable: false,
     }.freeze,
+    moderation_warning: {
+      filterable: false,
+    }.freeze,
     'admin.sign_up': {
       filterable: false,
     }.freeze,
@@ -90,6 +93,7 @@ class Notification < ApplicationRecord
     belongs_to :poll, inverse_of: false
     belongs_to :report, inverse_of: false
     belongs_to :account_relationship_severance_event, inverse_of: false
+    belongs_to :account_warning, inverse_of: false
   end
 
   validates :type, inclusion: { in: TYPES }
@@ -180,7 +184,7 @@ class Notification < ApplicationRecord
     return unless new_record?
 
     case activity_type
-    when 'Status', 'Follow', 'Favourite', 'FollowRequest', 'Poll', 'Report'
+    when 'Status', 'Follow', 'Favourite', 'FollowRequest', 'Poll', 'Report', 'AccountWarning'
       self.from_account_id = activity&.account_id
     when 'Mention'
       self.from_account_id = activity&.status&.account_id
diff --git a/app/serializers/rest/account_warning_serializer.rb b/app/serializers/rest/account_warning_serializer.rb
new file mode 100644
index 0000000000..a0ef341d25
--- /dev/null
+++ b/app/serializers/rest/account_warning_serializer.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class REST::AccountWarningSerializer < ActiveModel::Serializer
+  attributes :id, :action, :text, :status_ids, :created_at
+
+  has_one :target_account, serializer: REST::AccountSerializer
+  has_one :appeal, serializer: REST::AppealSerializer
+
+  def id
+    object.id.to_s
+  end
+
+  def status_ids
+    object&.status_ids&.map(&:to_s)
+  end
+end
diff --git a/app/serializers/rest/appeal_serializer.rb b/app/serializers/rest/appeal_serializer.rb
new file mode 100644
index 0000000000..a24cabc272
--- /dev/null
+++ b/app/serializers/rest/appeal_serializer.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class REST::AppealSerializer < ActiveModel::Serializer
+  attributes :text, :state
+
+  def state
+    if object.approved?
+      'approved'
+    elsif object.rejected?
+      'rejected'
+    else
+      'pending'
+    end
+  end
+end
diff --git a/app/serializers/rest/notification_serializer.rb b/app/serializers/rest/notification_serializer.rb
index 36a0adfec4..417245d19d 100644
--- a/app/serializers/rest/notification_serializer.rb
+++ b/app/serializers/rest/notification_serializer.rb
@@ -7,6 +7,7 @@ class REST::NotificationSerializer < ActiveModel::Serializer
   belongs_to :target_status, key: :status, if: :status_type?, serializer: REST::StatusSerializer
   belongs_to :report, if: :report_type?, serializer: REST::ReportSerializer
   belongs_to :account_relationship_severance_event, key: :event, if: :relationship_severance_event?, serializer: REST::AccountRelationshipSeveranceEventSerializer
+  belongs_to :account_warning, key: :moderation_warning, if: :moderation_warning_event?, serializer: REST::AccountWarningSerializer
 
   def id
     object.id.to_s
@@ -23,4 +24,8 @@ class REST::NotificationSerializer < ActiveModel::Serializer
   def relationship_severance_event?
     object.type == :severed_relationships
   end
+
+  def moderation_warning_event?
+    object.type == :moderation_warning
+  end
 end
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index c83e4c017f..e56562c0a5 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -9,6 +9,7 @@ class NotifyService < BaseService
     update
     poll
     status
+    moderation_warning
     # TODO: this probably warrants an email notification
     severed_relationships
   ).freeze
@@ -22,7 +23,7 @@ class NotifyService < BaseService
 
     def dismiss?
       blocked   = @recipient.unavailable?
-      blocked ||= from_self? && @notification.type != :poll && @notification.type != :severed_relationships
+      blocked ||= from_self? && %i(poll severed_relationships moderation_warning).exclude?(@notification.type)
 
       return blocked if message? && from_staff?
 
@@ -75,6 +76,7 @@ class NotifyService < BaseService
       admin.report
       poll
       update
+      account_warning
     ).freeze
 
     def initialize(notification)
diff --git a/spec/models/admin/account_action_spec.rb b/spec/models/admin/account_action_spec.rb
index 9bc9f8061d..a9dcf352dc 100644
--- a/spec/models/admin/account_action_spec.rb
+++ b/spec/models/admin/account_action_spec.rb
@@ -69,22 +69,22 @@ RSpec.describe Admin::AccountAction do
       end
     end
 
-    it 'creates Admin::ActionLog' do
+    it 'sends notification, log the action, and closes other reports', :aggregate_failures do
+      other_report = Fabricate(:report, target_account: target_account)
+
+      emails = []
       expect do
-        subject
-      end.to change(Admin::ActionLog, :count).by 1
-    end
+        emails = capture_emails { subject }
+      end.to (change(Admin::ActionLog.where(action: type), :count).by 1)
+         .and(change { other_report.reload.action_taken? }.from(false).to(true))
 
-    it 'calls process_email!' do
-      allow(account_action).to receive(:process_email!)
-      subject
-      expect(account_action).to have_received(:process_email!)
-    end
+      expect(emails).to contain_exactly(
+        have_attributes(
+          to: contain_exactly(target_account.user.email)
+        )
+      )
 
-    it 'calls process_reports!' do
-      allow(account_action).to receive(:process_reports!)
-      subject
-      expect(account_action).to have_received(:process_reports!)
+      expect(LocalNotificationWorker).to have_enqueued_sidekiq_job(target_account.id, anything, 'AccountWarning', 'moderation_warning')
     end
   end