diff --git a/lib/lang/cy.js b/lib/lang/cy.js
index fd467b8e..38fb42fb 100644
--- a/lib/lang/cy.js
+++ b/lib/lang/cy.js
@@ -48,7 +48,7 @@ module.exports = {
   "later-today-morning": "yn hwyrach bore yma",
   "today-afternoon": "y prynhawn yma",
   "later-today-afternoon": "yn hwyrach prynhawn yma",
-  "today-evening": "fin nos heno",
+  "today-evening": "gyda’r hwyr heno",
   "later-today-evening": "yn hwyrach fin nos heno",
   "today-night": "heno",
   "later-today-night": "yn hwyrach heno",
@@ -58,7 +58,7 @@ module.exports = {
   "tomorrow-night": "nos yfory",
   "morning": "yn y bore",
   "afternoon": "yn y prynhawn",
-  "evening": "fin nos",
+  "evening": "gyda’r hwyr",
   "night": "dros nos",
   "today": "heddiw",
   "tomorrow": "yfory",
@@ -89,8 +89,12 @@ module.exports = {
     return "llai na" + (/^(1|8|11|16)[\D\b]/.test(a) ? "g " : " ") + a;
   },
   "and": function(a, b) {
+    // don't repeat 'yn y'
+    if (a.slice(0,5) === "yn y " && b.slice(0,5) === "yn y ")
+      return a + " a’r " + b.slice(5);
     // don't repeat 'ar'
-    if (a.slice(0,9) === "ar ddydd " && b.slice(0,9) === "ar ddydd ") b = b.slice(4);
+    if (a.slice(0,9) === "ar ddydd " && b.slice(0,9) === "ar ddydd ")
+      b = b.slice(4);
     return a
       // include comma if a list
       + (a.indexOf(",") !== -1 ? "," : "")
@@ -141,4 +145,10 @@ module.exports = {
       str += ".";
     return str;
   },
+  "next-hour-forecast-status": "Dydi rhagolygon yr awr nesa $1 oherwydd $2.",
+  "unavailable": "ddim ar gael",
+  "temporarily-unavailable": "ddim ar gael ar hyn o bryd",
+  "partially-unavailable": "ddim yn gyflawn",
+  "station-offline": "diffyg gwybodaeth o orsafoedd radar gerllaw",
+  "station-incomplete": "bylchau yn narpariaeth gorsafoedd radar gerllaw",
 };
diff --git a/test_cases/cy.json b/test_cases/cy.json
index b14dcc84..f7bcff46 100644
--- a/test_cases/cy.json
+++ b/test_cases/cy.json
@@ -57,13 +57,13 @@
       "medium-snow",
       ["and", "later-today-evening", "tomorrow-morning"]]],
 
-	"Glaw trwm hyd at hwyrach bore yma, gan gychwyn eto fin nos heno.":
+	"Glaw trwm hyd at hwyrach bore yma, gan gychwyn eto gyda’r hwyr heno.":
     ["sentence", ["until-starting-again",
       "heavy-rain",
       "later-today-morning",
       "today-evening"]],
 
-	"Cymylau trwchus yn cychwyn fin nos, gan barhau hyd at y nos.":
+	"Cymylau trwchus yn cychwyn gyda’r hwyr, gan barhau hyd at y nos.":
     ["sentence", ["starting-continuing-until",
       "heavy-clouds",
       "evening",
@@ -158,5 +158,18 @@
         ["through", "friday", "saturday"]],
       ["temperatures-peaking",
         ["fahrenheit", 100],
-        "monday"]]]
+        "monday"]]],
+
+  "Glaw ysgafn yn bosib yn y bore a’r prynhawn.":
+    ["sentence", ["during",
+      "possible-light-rain", ["and",
+        "morning", "afternoon"]]],
+
+  "Dydi rhagolygon yr awr nesa ddim ar gael ar hyn o bryd oherwydd diffyg gwybodaeth o orsafoedd radar gerllaw.":
+    ["sentence",["next-hour-forecast-status", "temporarily-unavailable", "station-offline"]],
+  "Dydi rhagolygon yr awr nesa ddim yn gyflawn oherwydd bylchau yn narpariaeth gorsafoedd radar gerllaw.":
+    ["sentence",["next-hour-forecast-status", "partially-unavailable", "station-incomplete"]],
+  "Dydi rhagolygon yr awr nesa ddim ar gael oherwydd diffyg gwybodaeth o orsafoedd radar gerllaw.":
+    ["sentence",["next-hour-forecast-status", "unavailable", "station-offline"]]
+
 }