diff --git a/system-announce b/system-announce
index 65f6962..825ff8d 100644
--- a/system-announce
+++ b/system-announce
@@ -1,2 +1,7 @@
 # System announcements:                                   #
 #                                                         #
+# fdata1 will be interrupted today from 4.30 pm due to    #
+# urgent firmware upgrades.                               #
+# This should not last more thant 2 hours.                #
+# Sorry for the short time notice.                        #
+#                                                         #