diff --git a/metar.html b/metar.html
index a276588..9aca05d 100644
--- a/metar.html
+++ b/metar.html
@@ -825,15 +825,15 @@
                 return;
             }
 
-            let metarIndex = -1;
+            let metarIndex;
 
+            // If an ID is provided, try to find it.
             if (id !== undefined) {
                 metarIndex = metars.findIndex(m => m.line === id);
             }
 
-            if (metarIndex === -1) {
-                // Bias random selection towards the more interesting (higher-scored) METARs.
-                // Math.random() * Math.random() skews distribution towards 0.
+            // If no ID was provided, or the ID was not found, pick a random METAR.
+            if (id === undefined || metarIndex === -1) {
                 const randomSortedIndex = Math.floor(Math.random() * Math.random() * sortedMetars.length);
                 const selectedMetar = sortedMetars[randomSortedIndex];
                 metarIndex = metars.findIndex(m => m.metar === selectedMetar.metar);