Wednesday 25 July 2018

Weather synopsis (Jul 26, 2018; Wk 12)

Weather synopsis – This past week (July 16 – 23, 2018) the average temperature (16.3 °C) was marginally warmer than long term average values (Fig. 1). The warmest weekly temperatures occurred across east-central AB and west-central/southern SK. The 30-day (June 23 – July 23) average temperature (15.8 °C) was similar to the long term average.  
Figure 1. Weekly (July 16-23, 2018) average temperature (°C).

Weekly and 30-day total precipitation was above average (Figs. 2 and 3).  The wettest region (30 day cumulative precipitation) was across eastern areas in SK and southern MB while central SK and most of AB continue to be dry.
Figure 2. Weekly (July 16 – 23, 2018) cumulative precipitation (mm).


Figure 3.  The 30-day (June 23 – July 23, 2018) cumulative precipitation (mm).

The map below reflects the Highest Temperatures occurring over the past 7 days (July 17-23, 2018) across the prairies and is available from Agriculture and Agri-Food Canada (Fig. 4). 
Figure 4. Highest temperature across the Canadian prairies the past seven days (July 17-23, 2018). Image has not been reproduced in affiliation with, or with the endorsement of the Government of Canada and was retrieved (24Jul2018).  Access the full map at http://www.agr.gc.ca/DW-GS/current-actuelles.jspx?lang=eng&jsEnabled=true&reset=1529635048320).

The map below reflects the Highest Temperatures occurring over the past 7 days (July 17-23, 2018) across the prairies and is available from Agriculture and Agri-Food Canada (Fig. 5). 
Figure 5. Lowest temperature across the Canadian prairies the past seven days (July 17-23, 2018). Image has not been reproduced in affiliation with, or with the endorsement of the Government of Canada and was retrieved (24Jul2018).  Access the full map at http://www.agr.gc.ca/DW-GS/current-actuelles.jspx?lang=eng&jsEnabled=true&reset=1529635048320).


The growing degree day map (GDD) (Base 10ºC, March 1 – July 22, 2018) is below:




The growing degree day map (GDD) (Base 5ºCMarch 1 – July 22, 2018) is below:


The maps above are all produced by Agriculture and Agri-Food Canada.  Growers may wish to bookmark the AAFC Drought Watch Maps for the growing season.