From 9198a65ab01095017988c773fd8ce8339cc854a6 Mon Sep 17 00:00:00 2001
From: Rahul Mahajan <aerorahul@users.noreply.github.com>
Date: Thu, 5 Feb 2026 13:30:32 -0500
Subject: [PATCH] create index file for master

---
 dev/scripts/exglobal_atmos_products.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dev/scripts/exglobal_atmos_products.sh b/dev/scripts/exglobal_atmos_products.sh
index 8ba75e0c40e..3cd352ae9f7 100755
--- a/dev/scripts/exglobal_atmos_products.sh
+++ b/dev/scripts/exglobal_atmos_products.sh
@@ -40,6 +40,9 @@ IFS=':' read -ra grids <<< "${grid_string}"
 # Files needed by ${USHgfs}/interp_atmos_master.sh
 MASTER_FILE="${COMIN_ATMOS_MASTER}/${PREFIX}master.${fhr3}.grib2"
 
+# Create an index file for the master
+${WGRIB2} -s "${MASTER_FILE}" > "${MASTER_FILE}.idx"
+
 for ((nset = 1; nset <= downset; nset++)); do
 
     echo "INFO: Begin processing nset = ${nset}"