Tonight: Any leftover showers and thunderstorms over far Western Mass should dissipate shortly after sunset. Other than this, dry weather is expected for tonight with areas of low clouds and fog developing after midnight. Low temperatures will be between 65 and 70 Degrees. Winds will be Southwest at 5 to 10 mph. Saturday: The atmosphere should be a little more unstable during Saturday and because of this, I think we’ll probably see a few very isolated thunderstorms during the afternoon. Since there will be limited amounts of forcing, I think most areas should remain dry and any thunderstorms will be extremely hit or miss. High temperatures Saturday will be between 85 and 90 Degrees. Winds will be South at 5 to 10 mph. Sunday Through Monday: An upper level trough of low pressure is expected to be positioned just to our west. The southerly wind flow on the eastern side of this trough will push very humid air northward into our area during Sunday, Sunday night and Monday. At the same time this is occurring, an area of low pressure is forecast to head northward from the Mid-Atlantic states and pass either near or right over Southern New England on Sunday night and Monday. I think that there is an increasing threat for a heavy rain and potential flash flood situation across Western and Central Mass on Sunday night and Monday due to slow moving heavy showers and thunderstorms that produce copious amounts of rainfall. In addition, forecast guidance of the rivers and streams across the region point to the possibility that at least a few of them could approach flood stage by Monday night and Tuesday and this is something that’ll need to be watched. For now, I think that Sunday will be quite humid with some scattered showers and thunderstorms during the afternoon, especially over Western Mass. High temperatures will be between 80 and 85 Degrees. Widespread showers and scattered thunderstorms with heavy downpours are expected on Sunday night across the entire area. Low temperatures will be between 65 and 70 Degrees. Widespread showers and scattered thunderstorms with heavy downpours is likely to continue through Monday across the entire area. High temperatures Monday will be between 75 and 80 Degrees. Total rainfall amounts from Sunday afternoon through Sunday night and Monday may range from 1 to 2 inches with locally higher amounts across Central Mass to 2 to 3 inches with locally higher amounts across Western Mass. Upwards of 4 or more inches of total rainfall is possible across the Berkshires. Tuesday: The coverage of shower and thunderstorm activity should be much less for Tuesday with generally partly sunny skies expected. At this point, I think that some scattered hit or miss shower and thunderstorm activity is possible for Tuesday afternoon. High temperatures will be between 80 and 85 Degrees. Wednesday Through Friday: The rain forest type weather is likely to continue through all of next week across the area with no reprieve from the very humid conditions. Wednesday looks like it’ll feature partly sunny skies with high temperatures between 85 and 90 Degrees. Yet another frontal system may pass across the region with a wave of low pressure moving along the front late Thursday night and Friday. This means another round of heavy showers and thunderstorms with heavy downpours and a threat for more flash flooding could be in the offing for late Thursday night, Friday and Friday night.
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