diff --git a/lib/client-assets.php b/lib/client-assets.php
index 3cdfda9619901..e4aed7b1a2847 100644
--- a/lib/client-assets.php
+++ b/lib/client-assets.php
@@ -732,6 +732,7 @@ function gutenberg_register_scripts_and_styles() {
'wp-embed',
'wp-i18n',
'wp-keycodes',
+ 'wp-notices',
'wp-nux',
'wp-plugins',
'wp-polyfill',
diff --git a/packages/edit-post/src/components/admin-notices/index.js b/packages/edit-post/src/components/admin-notices/index.js
new file mode 100644
index 0000000000000..e09037004714e
--- /dev/null
+++ b/packages/edit-post/src/components/admin-notices/index.js
@@ -0,0 +1,112 @@
+/**
+ * WordPress dependencies
+ */
+import { Component } from '@wordpress/element';
+import { withDispatch } from '@wordpress/data';
+
+/**
+ * Set of class name suffixes to associate as the status of an admin notice.
+ *
+ * @type {Set}
+ */
+const NOTICE_STATUSES = new Set( [
+ 'success',
+ 'warning',
+ 'error',
+ 'info',
+] );
+
+/**
+ * Pattern matching a class list item matching the pattern of an admin notice
+ * status class.
+ *
+ * @type {RegExp}
+ */
+const REGEXP_NOTICE_STATUS = /^notice-(\w+)$/;
+
+/**
+ * Returns an array of admin notice Elements.
+ *
+ * @return {Element[]} Admin notice elements.
+ */
+function getAdminNotices() {
+ return [ ...document.querySelectorAll( '.notice' ) ];
+}
+
+/**
+ * Given an admin notice Element, returns the upgraded content string. Prefers
+ * text found within its first child paragraph node, but falls back to the text
+ * content of the entire notice element.
+ *
+ * @param {Element} element Admin notice element.
+ *
+ * @return {string} Upgraded notice content.
+ */
+function getNoticeContentFromElement( element ) {
+ let node = element;
+ if ( node.firstElementChild && node.firstElementChild.nodeName === 'P' ) {
+ node = node.firstElementChild;
+ }
+
+ return node.textContent.trim();
+}
+
+/**
+ * Given an admin notice Element, returns the upgraded status type, or
+ * undefined if one cannot be determined (i.e. one is not assigned).
+ *
+ * @param {Element} element Admin notice element.
+ *
+ * @return {?string} Upgraded status type.
+ */
+function getNoticeStatusFromClassList( element ) {
+ for ( const className of element.classList ) {
+ const match = className.match( REGEXP_NOTICE_STATUS );
+ if ( match && NOTICE_STATUSES.has( match[ 1 ] ) ) {
+ return match[ 1 ];
+ }
+ }
+}
+
+/**
+ * Given an admin notice Element, returns a notices module object.
+ *
+ * @param {Element} element Admin notice element.
+ *
+ * @return {WPNotice} Notice object.
+ */
+function getNoticeFromElement( element ) {
+ const status = getNoticeStatusFromClassList( element );
+ const content = getNoticeContentFromElement( element );
+ const isDismissible = element.classList.contains( 'is-dismissible' );
+
+ return { status, content, isDismissible };
+}
+
+export class AdminNotices extends Component {
+ componentDidMount() {
+ this.convertNotices();
+ }
+
+ convertNotices() {
+ const { createNotice } = this.props;
+ getAdminNotices().forEach( ( element ) => {
+ // Convert and create.
+ const notice = getNoticeFromElement( element );
+ createNotice( notice );
+
+ // Remove (now-redundant) admin notice element.
+ element.parentNode.removeChild( element );
+ } );
+ }
+
+ render() {
+ return null;
+ }
+}
+
+export default withDispatch( ( dispatch ) => {
+ const { createNotice } = dispatch( 'core/notices' );
+
+ return { createNotice };
+} )( AdminNotices );
diff --git a/packages/edit-post/src/components/admin-notices/test/index.js b/packages/edit-post/src/components/admin-notices/test/index.js
new file mode 100644
index 0000000000000..a63381f83fc82
--- /dev/null
+++ b/packages/edit-post/src/components/admin-notices/test/index.js
@@ -0,0 +1,40 @@
+/**
+ * External dependencies
+ */
+import renderer from 'react-test-renderer';
+
+/**
+ * Internal dependencies
+ */
+import { AdminNotices } from '../';
+
+describe( 'AdminNotices', () => {
+ beforeEach( () => {
+ // The superfluous whitespace is intentional in verifying expected
+ // outputs of (a) non-element first child of the element (whitespace
+ // text node) and (b) untrimmed content.
+ document.body.innerHTML = `
+
+
+ My notice text
+
+
+