From the 40 year historical data on precipitation during the months September to November, we found that there is an expected annual increase in average precipitation per fall month for all weather station locations (Table 1). Agassiz, Hope and Laidlaw resulted in the largest and second largest expected increase in precipitation, respectively. Chilliwack had the lowest expected increase in precipitation of 0.1035 cm/ month/ year.

Table 1. Annual precipitation trends in cm/ month/ year (for September, October and November) using historical data from 1967 to 2007 for the 7 weather stations in the Lower FVRD.

Figure 7. MCE Sensitivity Analysis for the following 5 Criteria: TWI, Slope, Precipitation, and Proximity to Lakes and Streams With Weights of 0.20 Each, for ALR Lands in the Lower FVRD Prone to Agricultural Runoff in the recent future.

Figure 8. MCE Weighted Sum Analysis for ALR Lands in the Lower FVRD Prone to Agricultural Runoff in the recent future, using weights as follows: TWI = 0.245, Slope = 0.185, Proximity to Streams = 0.107, Proximity to Lakes = 0.141 and Precipitation = 0.322.

Figure 9. Combined MCE Analysis for ALR Lands in the Lower FVRD Prone to Agricultural Runoff in the recent future using Equal Weights for Both MCE Sensitivity Analysis and MCE Weighted Sum (0.5).