diff --git a/fbfmaproom/fbfmaproom-sample.yaml b/fbfmaproom/fbfmaproom-sample.yaml
index 264e7af7..2dd85b0b 100644
--- a/fbfmaproom/fbfmaproom-sample.yaml
+++ b/fbfmaproom/fbfmaproom-sample.yaml
@@ -3771,3 +3771,55 @@ countries:
                 length: 3.0
                 issue_months: [5, 6, 7, 8]
                 start_year: 1983
+    zambia:
+        logo: Zambia_IRI_120x48.png
+        resolution: [0.05, 0.05]
+        center: [27, -15]
+        zoom: 6
+        rotation: 0
+        marker: [25, -17]
+        shapes:
+            - name: National
+              sql: select adm0_code as key, adm0_name as label, ST_AsBinary(the_geom) as the_geom
+                  from iridb.g2015_2012_0 where adm0_name = 'Zambia'
+              vuln_sql: select adm0_code as key, year, sum(vulnerability) as vuln
+                  from public.fbf_vulnerability where adm0_name = 'Zambia' group by 1, 2
+
+        datasets:
+            defaults:
+              predictors:
+                - prcp
+              predictand: bad-years-v3
+            observations:
+                bad-years-v3:
+                    label: Reported bad years v3
+                    path: zambia/bad_years-national.zarr
+                    var_names:
+                        value: rank
+                        time: T
+                    colormap: precip
+                    lower_is_worse: yes
+                    format: number0
+            forecasts:
+                prcp:
+                    label: JAS fcst
+                    description: NextGen seasonal rainfall forecast probability of non-exceedance of the selected percentile for the July-September season
+                    path: zambia/prcp-ndj-v1.zarr
+                    var_names:
+                        value: pne
+                        lat: Y
+                        lon: X
+                        issue: S
+                        pct: quantile
+                    colormap: pne_25
+                    is_poe: no
+            vuln:
+                colormap: vulnerability
+                range: [0.0, 5.0]
+        seasons:
+            season1:
+                label: JAS
+                target_month: 7.5
+                length: 3.0
+                issue_months: [0, 1, 2, 3, 4, 5]
+                start_year: 1991
diff --git a/fbfmaproom/fbfmaproom.py b/fbfmaproom/fbfmaproom.py
index 8186e73b..101f10de 100644
--- a/fbfmaproom/fbfmaproom.py
+++ b/fbfmaproom/fbfmaproom.py
@@ -47,7 +47,7 @@
 SERVER.register_error_handler(ClientSideError, pingrid.client_side_error)
 
 month_abbrev = ['jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', 'dec']
-abbrev_to_month0 = dict((abbrev, month0) for month0, abbrev in enumerate(month_abbrev))
+abbrev_to_month0: Dict[str, int]  = dict((abbrev, month0) for month0, abbrev in enumerate(month_abbrev))
 
 
 class FbfDash(dash.Dash):
@@ -1208,7 +1208,7 @@ def update_severity_color(value):
     Input("map_column", "value"),
     State("season", "value"),
 )
-def tile_url_callback(target_year, issue_month_abbrev, freq, pathname, map_col_key, season_id):
+def tile_url_callback(target_year, issue_month_abbrev: str, freq, pathname, map_col_key, season_id: str):
     colorscale = None  # default value in case an exception is raised
     try:
         country_key = country(pathname)