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Merry Christmas Eve! A strong area of low pressure is expected to move from the Ohio Valley tonight northward through New York State and into Quebec, Canada on Christmas Day. This low pressure system will pull a strong cold front through Western and Central Mass during Christmas Day afternoon. The result of this storm system will be strong winds which will lead to downed trees and power outages, heavy rainfall that will cause flooding and a possible line of thunderstorms that will push through the region on Christmas morning. The worst part of this storm will be from late tonight through a good part of Christmas Day. Heavy Rain With Flooding: Rain showers will be on the increase throughout the rest of this afternoon into this evening. A steady rain will overspread all of Western and Central Mass between about 1 am and 3 am tonight. Heavy rain will then develop across the entire area between about 3 am and 5 am Christmas Morning. Heavy rain is then expected to continue throughout all of Christmas morning into the early afternoon hours of Christmas Day. Rain will begin to end first across Western Mass between 3 pm and 5 pm Christmas afternoon and then across Central Mass between about 7 and 9 pm Christmas evening. Total rainfall amounts upwards of 2 to 3 inches are expected across all of Western and Central Mass. I am expecting a lot of urban and poor drainage flooding. Minor river and stream flooding is also expected across the entire area. In addition, moderate river flooding is expected across some parts of the Connecticut River. Strong Winds: The potential for strong winds that could lead to downed trees and power outages is something that will really need to be watched beginning this evening and continuing through much of Christmas Day. South to southeast winds will continue to increase in velocity throughout this afternoon and into tonight. Wind gusts of up to 30 to 40 mph are expected throughout the rest of this afternoon with wind gusts of up to 40 to 50 mph expected this evening. By after midnight tonight, wind gusts of up to 50 to 60 mph are expected across the entire area. South to southeast winds are expected to continue to be strong throughout Christmas Day morning into the early afternoon hours with wind gusts of up to 50 to 60 mph expected. A shift of the wind into the southwest is expected later in the afternoon with wind gusts of up to 50 mph possible. The winds will finally diminish on Christmas night. Be prepared for the potential of downed trees and power lines with scattered to possibly widespread power outages from tonight through Christmas Day. Make sure you have batteries handy for flashlights. Also, be sure that your electronic devices are charged in the event that the power goes out. Thunderstorms: There’s the possibility that a line of thunderstorms will move through Western Mass between about 5 am and 8 am Christmas morning and through Central Mass between about 7 am and 10 am Christmas morning. Some strong wind gusts to 60-65 mph are possible along with a few rumbles of thunder when this line moves through. Temperatures: A very mild 24 hours of so is expected across the entire area. Temperatures the rest of this afternoon will be in the low to mid 50s. Temperatures tonight will remain in the middle 50s and may rise to near 60 Degrees by morning. During Christmas Day, temperatures in the 60 to 65 Degree range are expected during the morning with slowly falling temperatures into the 50s during the afternoon. Colder air will move back into the area on Friday night with low temperatures near 25 Degrees expected. This means that we may have to watch for icy spots late Christmas night as any leftover standing water freezes up. Bottom Line Is That, unfortunately, it still looks like a VERY stormy Christmas across the entire area.

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A strong storm system and its associated frontal boundary will bring heavy rain, strong winds and the threat for flooding to all of Western and Central Mass during Christmas Eve night and Christmas Day. Unfortunately, there is no hope now for a white Christmas across the region as a strong area of low pressure heads into Quebec, Canada and pulls a very mild, very wet and very windy system across the area starting on Christmas Eve night and continuing through Christmas Day. Heavy Rain With Flooding: Rain showers will be on the increase during Christmas Eve afternoon with a steady rain overspreading the region just after midnight on Christmas Eve night. Heavy rain is expected throughout the morning on Christmas Day. This heavy rain is expected to come to an end during the early afternoon hours of Christmas Day with all rain coming to an end by the later afternoon hours of Christmas Day. Total rainfall amounts upwards of 2 to 3 inches are expected across the entire area. This will lead to street flooding across the entire area. In addition, the combination of the heavy rainfall, mild temperatures in the 50s and a rapidly melting snow pack will lead to river and stream flooding across all of Western and Central Mass. In fact, current guidance indicates that at least minor to possibly moderate flooding can be expected on the Connecticut River. Strong Winds: The potential for strong winds that could lead to downed trees and power outages is something that will really need to be watched from late Christmas Eve night through Christmas Day. South to southeast winds are expected to increase in velocity during Christmas Eve night with wind gusts of up to 50 to 60 mph expected after midnight on Christmas Eve night. South to southeast winds are expected to continue to be strong throughout Christmas Day morning with wind gusts of up to 50 to 60 mph expected. A shift of the wind into the southwest is expected on Christmas Day afternoon with wind gusts of up to 50 mph possible. The winds will finally diminish on Christmas night. Be prepared for the potential of downed trees and power lines with scattered to possibly widespread power outages from late Christmas Eve night through Christmas Day. Make sure you have batteries handy for flashlights. Also, be sure that your electronic devices are charged in the event that the power goes out. Bottom Line Is That, unfortunately, it looks like a VERY stormy Christmas across the entire area.

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Tonight: A cool and moist pattern will remain in place across the region tonight. This means that plenty of clouds with areas of fog can be expected tonight. Temperatures tonight will be in the 32 to 37 Degree range with a light northwest wind. Tuesday: Low clouds and areas of fog are expected during Tuesday morning with partly sunny skies expected for Tuesday afternoon. High temperatures Tuesday will be between 35 and 40 Degrees. Wednesday: A partly sunny day is expected on Wednesday with high temperatures between 35 and 40 Degrees. Christmas Eve (Thursday): A strong frontal system will be pushing eastward across the eastern Great Lakes during Christmas Eve. A cloudy day is expected on Christmas Eve and there may be some scattered rain showers during the afternoon. High temperatures will be between 50 and 55 Degrees. This means that, unfortunately, there will be some quick snow melt. This also means that fog is likely to develop during the afternoon leading to reduced visibility on roadways. Thursday Night: That frontal system will edge closer to our area during Thursday night. Evening scattered rain showers will give way to a steady rain after midnight. The rain is expected to become heavy at times towards Christmas morning. In addition to the rain, southerly winds are likely to gust up to 40 mph at times. Also, fog is expected throughout Thursday night. One thing we will need to monitor closely is the potential for flooding on roadways and low-lying areas due to the combination of heavy rainfall and the rapid melt of our snow pack. Temperatures on Thursday night will be in the upper 40s to low 50s. Christmas Day (Friday): That strong frontal system is currently expected to push across Western and Central Mass during Christmas Morning. Unfortunately, much of Christmas Day looks wet and windy. Rain, heavy at times, is expected throughout Christmas morning. In addition to the rain, southerly winds are expected to gust up to 40 to 50 mph at times. We will still need to watch out for flooding on roadways and low-lying areas throughout Christmas morning. The rain is expected to gradually end during Christmas afternoon and there is likely to be a temperature drop during the afternoon as well. This means that there is the possibility for a very brief period of snow at the very end of this system during later Christmas afternoon with little or no snow accumulation expected. Temperatures on Christmas Morning will be near 50 Degrees with temperatures falling through the 40s and into the 30s during Christmas Afternoon.

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