diff --git a/web/src/features/fbaCalculator/slices/fbaCalculatorSlice.ts b/web/src/features/fbaCalculator/slices/fbaCalculatorSlice.ts
index bfa19f65d..185c64967 100644
--- a/web/src/features/fbaCalculator/slices/fbaCalculatorSlice.ts
+++ b/web/src/features/fbaCalculator/slices/fbaCalculatorSlice.ts
@@ -4,7 +4,7 @@ import { FBAStation, FBAWeatherStationsResponse, postFBAStations } from 'api/fba
 import { AppThunk } from 'app/store'
 import { logError } from 'utils/error'
 import { FuelTypes } from '../fuelTypes'
-import { isEmpty, isEqual, isNull, isUndefined } from 'lodash'
+import { isEmpty, isNil } from 'lodash'
 import { FBATableRow } from 'features/fbaCalculator/RowManager'
 import { DateTime } from 'luxon'
 import { PST_UTC_OFFSET } from 'utils/constants'
@@ -60,12 +60,7 @@ export const fetchFireBehaviourStations =
   async dispatch => {
     const fetchableFireStations = fbcInputRows.flatMap(row => {
       const fuelTypeDetails = FuelTypes.lookup(row.fuelType?.value)
-      if (
-        isNull(fuelTypeDetails) ||
-        isUndefined(fuelTypeDetails) ||
-        isUndefined(row.weatherStation) ||
-        isEqual(row.weatherStation, 'undefined')
-      ) {
+      if (isNil(fuelTypeDetails) || isNil(row.weatherStation)) {
         return []
       }
       return {
diff --git a/web/src/features/moreCast2/components/TabbedDataGrid.tsx b/web/src/features/moreCast2/components/TabbedDataGrid.tsx
index adb45023d..c1943aa3c 100644
--- a/web/src/features/moreCast2/components/TabbedDataGrid.tsx
+++ b/web/src/features/moreCast2/components/TabbedDataGrid.tsx
@@ -343,19 +343,17 @@ const TabbedDataGrid = ({ fromTo, setFromTo, fetchWeatherIndeterminates }: Tabbe
   /********** End useEffects for managing visibility of column groups *************/
 
   const updateColumnHelper = (editedRows: MoreCast2Row[]) => {
-    // Create a copy of all Morecast2ForecastRows
-    let newRows = cloneDeep(allRows)
-    newRows = newRows.map(newRow => editedRows.find(row => row.id === newRow.id) || newRow)
-
+    // Create a copy of editedRows which will be stored as a draft
+    let draftRows = cloneDeep(editedRows)
     const rowsForSimulation = filterAllVisibleRowsForSimulation(editedRows) ?? []
 
     if (rowsForSimulation.length > 0) {
       const filteredRowsWithIndices = simulateFireWeatherIndices(rowsForSimulation)
-      storedDraftForecast.updateStoredDraftForecasts(filteredRowsWithIndices, getDateTimeNowPST())
-      // Merge the copy of allRows with rows that were updated with simulated indices
-      newRows = newRows.map(newRow => filteredRowsWithIndices.find(row => row.id === newRow.id) || newRow)
+      draftRows = draftRows.map(newRow => filteredRowsWithIndices.find(row => row.id === newRow.id) || newRow)
     }
-
+    storedDraftForecast.updateStoredDraftForecasts(draftRows, getDateTimeNowPST())
+    let newRows = cloneDeep(allRows)
+    newRows = newRows.map(newRow => draftRows.find(row => row.id === newRow.id) || newRow)
     setAllRows(newRows)
   }
 
@@ -496,13 +494,15 @@ const TabbedDataGrid = ({ fromTo, setFromTo, fetchWeatherIndeterminates }: Tabbe
 
   // Handler passed to our datagrids that runs after a row is updated.
   const processRowUpdate = (newRow: MoreCast2Row) => {
-    const filledRows = fillStationGrassCuringForward(newRow, allRows)
+    let filledRows = fillStationGrassCuringForward(newRow, allRows)
     const filteredRows = filterRowsForSimulationFromEdited(newRow, filledRows)
     const filteredRowsWithIndices = simulateFireWeatherIndices(filteredRows)
-    storedDraftForecast.updateStoredDraftForecasts(filteredRowsWithIndices, getDateTimeNowPST())
+    // Merge rows that have been updated (ie. filledRows) with rows that have had indices added and save as a draft
+    filledRows = filledRows.map(filledRow => filteredRowsWithIndices.find(row => row.id === filledRow.id) || filledRow)
+    storedDraftForecast.updateStoredDraftForecasts(filledRows, getDateTimeNowPST())
     let newRows = cloneDeep(allRows)
     // Merge the copy of existing rows with rows that were updated with simulated indices
-    newRows = newRows.map(newRow => filteredRowsWithIndices.find(row => row.id === newRow.id) || newRow)
+    newRows = newRows.map(newRow => filledRows.find(row => row.id === newRow.id) || newRow)
     setAllRows(newRows)
     return newRow
   }