Epi week #32 - 2017 General Statements | Central Mass Mosquito Control Project

We have now had 88 WNV-positive mosquito pools, with WNV activity in every single mainland county in the state. There are a total of 95 towns and cities in 10 counties at MODERATE risk for WNV. Given current trends in mosquito populations, temperature, and regular rain events, it is likely WNV levels will continue to build. In contrast, Culiseta melanura levels remain lower than average, and there have still been no EEV+ pools found.

Weather

Precipitation was limited this past week, particularly in the eastern part of the state (with the exception of Cape Cod and the Islands (note that the map below is missing a lot of datapoints, so should only be used to interpret general trends). Compared to July, the first half of August has been notably drier, with near normal temperatures. Our weather experts notes that for the first time this summer, he is noticing minor water stress on non-irrigated lawns.

Precipitation in MA for EPI Week 32, 2017

As this report goes to press, we are ending another week of hot, sunny days with a temporary cooldown accompanied by showers on Friday. Temperatures will quickly rebound for the weekend and into Epi Week 34, with humidity at typical August levels.