diff --git a/includes/common.php b/includes/common.php
index cfdd0c6863..d434ab67cc 100644
--- a/includes/common.php
+++ b/includes/common.php
@@ -1324,6 +1324,36 @@ function str_i_contains($haystack, $needles)
     return false;
 }
 
+    /**
+     * Get alert_rules sql filter by minimal severity
+     *
+     * @param  string|int $min_severity
+     * @param  string $alert_rules_name
+     * @return string
+     */
+
+function get_sql_filter_min_severity($min_severity, $alert_rules_name)
+{
+    $alert_severities = array(
+        // alert_rules.status is enum('ok','warning','critical')
+        'ok' => 1,
+        'warning' => 2,
+        'critical' => 3,
+        'ok only' => 4,
+        'warning only' => 5,
+        'critical only' => 6,
+    );
+    if (is_numeric($min_severity)) {
+        $min_severity_id = $min_severity;
+    } elseif (!empty($min_severity)) {
+        $min_severity_id = $alert_severities[$min_severity];
+    }
+    if (isset($min_severity_id)) {
+        return " AND `$alert_rules_name`.`severity` " . ($min_severity_id > 3 ? "" : ">") . "= " . ($min_severity_id > 3 ? $min_severity_id - 3 : $min_severity_id);
+    }
+    return "";
+}
+
 if (!function_exists('ends_with')) {
     /**
      * Determine if a given string ends with a given substring.
diff --git a/includes/html/pages/alert-log.inc.php b/includes/html/pages/alert-log.inc.php
index d585fb2a41..664a37fb24 100644
--- a/includes/html/pages/alert-log.inc.php
+++ b/includes/html/pages/alert-log.inc.php
@@ -17,6 +17,26 @@ $param = array();
 
 $pagetitle[] = 'Alert Log';
 
+$alert_states = array(
+    // divined from librenms/alerts.php
+    'Any' => -1,
+    'Ok (recovered)' => 0,
+    'Alert' => 1,
+//    'Acknowledged' => 2,
+    'Worse' => 3,
+    'Better' => 4,
+);
+
+$alert_severities = array(
+    // alert_rules.status is enum('ok','warning','critical')
+    'Any' => '',
+    'Ok, warning and critical' => 1,
+    'Warning and critical' => 2,
+    'Critical' => 3,
+    'OK' => 4,
+    'Warning' => 5
+);
+
 echo '<div class="panel panel-default panel-condensed">
                 <div class="panel-heading">
                     <div class="row">
@@ -31,17 +51,25 @@ echo '<div class="panel panel-default panel-condensed">
             ';
 
 if (isset($_POST['device_id'])) {
-    $default_option = '<option value="' . (int)$_POST['device_id'] . '" selected="selected">';
-    $default_option .= htmlentities($_POST['hostname']) . '</option>';
+    $selected_device = '<option value="' . (int)$_POST['device_id'] . '" selected="selected">';
+    $selected_device .= htmlentities($_POST['hostname']) . '</option>';
 } else {
-    $default_option = '';
+    $selected_device = '';
 }
 if (isset($_POST['state'])) {
-    $state = htmlspecialchars($_POST['state']);
+    $selected_state = '<option value="' . $_POST['state'] . '" selected="selected">';
+    $selected_state .= array_search((int)$_POST['state'], $alert_states) . '</option>';
 } else {
-    $state = '-1';
+    $selected_state = '';
+    $_POST['state'] = -1;
+}
+if (isset($_POST['min_severity'])) {
+    $selected_min_severity = '<option value="' . $_POST['min_severity'] . '" selected="selected">';
+    $selected_min_severity .= array_search((int)$_POST['min_severity'], $alert_severities) . '</option>';
+} else {
+    $selected_min_severity = '';
+    $_POST['min_severity'] = '';
 }
-
 
 ?>
 
@@ -76,7 +104,7 @@ if (isset($_POST['state'])) {
                 <strong>Device&nbsp;</strong> \
                 </label> \
                 <select name="device_id" id="device_id" class="form-control input-sm" style="min-width: 175px;"> \
-                <?php echo $default_option; ?> \
+                <?php echo $selected_device; ?> \
                </select> \
                </div> \
                <div class="form-group"> \
@@ -84,9 +112,26 @@ if (isset($_POST['state'])) {
                <strong>&nbsp;State&nbsp;</strong> \
                </label> \
                <select name="state" id="state" class="form-control input-sm"> \
-               <option value="-1"></option> \
-               <option value="0">Ok</option> \
+                <?php echo $selected_state; ?> \
+               <option value="-1">Any</option> \
+               <option value="0">Ok (recovered)</option> \
                <option value="1">Alert</option> \
+               <option value="3">Worse</option> \
+               <option value="4">Better</option> \
+               </select> \
+               </div> \
+               <div class="form-group"> \
+               <label> \
+               <strong>&nbsp;Severity&nbsp;</strong> \
+               </label> \
+               <select name="min_severity" id="min_severity" class="form-control input-sm"> \
+                <?php echo $selected_min_severity; ?> \
+               <option value>Any</option> \
+               <option value="3">Critical</option> \
+               <option value="5">Warning</option> \
+               <option value="4">Ok</option> \
+               <option value="2">Warning and critical</option> \
+               <option value="1">Ok, warning and critical</option> \
                </select> \
                </div> \
                <button type="submit" class="btn btn-default input-sm">Filter</button> \
@@ -97,7 +142,8 @@ if (isset($_POST['state'])) {
             return {
                 id: "alertlog",
                 device_id: '<?php echo htmlspecialchars($_POST['device_id']); ?>',
-                state: '<?php echo $state; ?>'
+                state: '<?php echo htmlspecialchars($_POST['state']); ?>',
+                min_severity: '<?php echo htmlspecialchars($_POST['min_severity']); ?>'
             };
         },
         url: "ajax_table.php"
diff --git a/includes/html/table/alertlog.inc.php b/includes/html/table/alertlog.inc.php
index d86e2f20df..0d796878e5 100644
--- a/includes/html/table/alertlog.inc.php
+++ b/includes/html/table/alertlog.inc.php
@@ -25,6 +25,10 @@ if ($vars['state'] >= 0) {
     $param[] = mres($vars['state']);
 }
 
+if (isset($vars['min_severity'])) {
+    $where .=  get_sql_filter_min_severity($vars['min_severity'], "R");
+}
+
 if (Auth::user()->hasGlobalRead()) {
     $sql = " FROM `alert_log` AS E LEFT JOIN devices AS D ON E.device_id=D.device_id RIGHT JOIN alert_rules AS R ON E.rule_id=R.id WHERE $where";
 } else {
diff --git a/includes/html/table/alerts.inc.php b/includes/html/table/alerts.inc.php
index 074a7920db..fa45959a11 100644
--- a/includes/html/table/alerts.inc.php
+++ b/includes/html/table/alerts.inc.php
@@ -24,16 +24,6 @@ $alert_states = array(
     'better' => 4,
 );
 
-$alert_severities = array(
-    // alert_rules.status is enum('ok','warning','critical')
-    'ok' => 1,
-    'warning' => 2,
-    'critical' => 3,
-    'ok only' => 4,
-    'warning only' => 5,
-    'critical only' => 6,
-);
-
 $show_recovered = false;
 
 if (is_numeric($vars['device_id']) && $vars['device_id'] > 0) {
@@ -57,14 +47,7 @@ if (is_numeric($vars['state'])) {
 }
 
 if (isset($vars['min_severity'])) {
-    if (is_numeric($vars['min_severity'])) {
-        $min_severity_id = $vars['min_severity'];
-    } elseif (!empty($vars['min_severity'])) {
-        $min_severity_id = $alert_severities[$vars['min_severity']];
-    }
-    if (isset($min_severity_id)) {
-        $where .= " AND `alert_rules`.`severity` " . ($min_severity_id > 3 ? "" : ">") . "= " . ($min_severity_id > 3 ? $min_severity_id - 3 : $min_severity_id);
-    }
+    $where .=  get_sql_filter_min_severity($vars['min_severity'], "alert_rules");
 }
 
 if (is_numeric($vars['group'])) {