diff --git a/config/global.ini.php b/config/global.ini.php
index 2bab7b130d71ad47004c0161932d85f37c0a1a7e..4a319c7e8953aa342c94ff891200a49edb77c984 100644
--- a/config/global.ini.php
+++ b/config/global.ini.php
@@ -65,7 +65,7 @@ log_writers[] = screen
 ; log level, everything logged w/ this level or one of greater severity
 ; will be logged. everything else will be ignored. possible values are:
 ; NONE, ERROR, WARN, INFO, DEBUG, VERBOSE
-log_level = ERROR
+log_level = WARN
 
 ; if set to 1, only requests done in CLI mode (eg. the ./console core:archive cron run) will be logged
 ; NOTE: log_only_when_debug_parameter will also be checked for
diff --git a/config/global.php b/config/global.php
index 5810779925976b3f001c4fa000a26c0088ac1a6a..b7051fdde7b04f6425405db335c3e472f847c2d3 100644
--- a/config/global.php
+++ b/config/global.php
@@ -34,6 +34,7 @@ return array(
         }
         $classes = array(
             'file'     => 'Piwik\Log\Handler\FileHandler',
+            'screen'   => 'Piwik\Log\Handler\WebNotificationHandler',
             'database' => 'Piwik\Log\Handler\DatabaseHandler',
         );
         $writerNames = array_map('trim', $writerNames);
@@ -58,6 +59,9 @@ return array(
     'Piwik\Log\Handler\DatabaseHandler' => DI\object()
         ->constructor(DI\link('log.level'))
         ->method('setFormatter', DI\link('Piwik\Log\Formatter\LineMessageFormatter')),
+    'Piwik\Log\Handler\WebNotificationHandler' => DI\object()
+        ->constructor(DI\link('log.level'))
+        ->method('setFormatter', DI\link('Piwik\Log\Formatter\LineMessageFormatter')),
     'log.level' => DI\factory(function (ContainerInterface $c) {
         if ($c->get('log.disabled')) {
             return Log::getMonologLevel(Log::NONE);
diff --git a/core/Error.php b/core/Error.php
index 0dd346244faec2ef28d4e17e48d881ea986fa59d..6b69e68848a3ebe58be3e1356192781570d0edd0 100644
--- a/core/Error.php
+++ b/core/Error.php
@@ -94,7 +94,7 @@ class Error
             case E_DEPRECATED:
             case E_USER_DEPRECATED:
             default:
-                Log::info(self::createLogMessage($errno, $errstr, $errfile, $errline));
+                Log::warning(self::createLogMessage($errno, $errstr, $errfile, $errline));
                 break;
         }
     }
diff --git a/core/Log/Handler/WebNotificationHandler.php b/core/Log/Handler/WebNotificationHandler.php
new file mode 100644
index 0000000000000000000000000000000000000000..af9afbe68e3cd8963272a44397871753e131939c
--- /dev/null
+++ b/core/Log/Handler/WebNotificationHandler.php
@@ -0,0 +1,45 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+
+namespace Piwik\Log\Handler;
+
+use Monolog\Handler\AbstractProcessingHandler;
+use Monolog\Logger;
+use Piwik\Common;
+use Piwik\Notification;
+use Piwik\Notification\Manager;
+
+/**
+ * Writes log messages into HTML notification box.
+ */
+class WebNotificationHandler extends AbstractProcessingHandler
+{
+    protected function write(array $record)
+    {
+        switch ($record['level']) {
+            case Logger::EMERGENCY:
+            case Logger::ALERT:
+            case Logger::CRITICAL:
+            case Logger::ERROR:
+                $context = Notification::CONTEXT_ERROR;
+                break;
+            case Logger::WARNING:
+                $context = Notification::CONTEXT_WARNING;
+                break;
+            default:
+                $context = Notification::CONTEXT_INFO;
+                break;
+        }
+
+        $message = htmlentities($record['formatted']);
+
+        $notification = new Notification($message);
+        $notification->context = $context;
+        Manager::notify(Common::getRandomString(), $notification);
+    }
+}