7:27AM
THUNDERSTORM REVIEW
Many of you saw some incredible pictures and videos of thunderstorms that rolled across much of the region late Wednesday afternoon and early Wednesday evening. For the most part, these storms were not severe in eastern areas, but there were a few reports of damage in southern NH and more areas of damage where storms contained more substantial hail and powerful winds in western and west central MA. An isolated downpour/thunderstorm popped up near Concord and Acton MA around 6PM Wednesday well ahead of the main line of storms, which was just entering central MA at that time. This isolated storm, while never becoming severe, organized itself into a super cell storm, which then split into 2 storms. This is something that is seen fairly frequently especially in the Plains and Midwest, and occasionally around here. Often when this happens, there will be a counterclockwise rotation of the storm on the right side and a clockwise rotation of the storm on the left, which is often the weaker of the two. In this case, it was the clockwise-rotating storm on the left that maintained its intensity while the other member faded away. Eventually, the surviving half of the storm did dissipate as well, but not before providing a spectacular view, especially to its north, where a sharp rotating storm tower was visible, dark grey in the shadow of clouds from the main line of storms to the west. That made the storm look more menacing for a time before it weakened and dissipated, but not before dropping some heavy rain and hail and causing some gusty winds along its path between Concord and Lowell and into the region just beyond Lowell in the Merrimack Valley. The main line came along behind this, impacting different areas to varying degrees depending on its strength as it passed by. I happened to drive up I-93N to Methuen MA where I intercepted one of the stronger parts of the line at the time it reached the area (around 8:30PM) and encountered some gusty wind, downpours, small hail (about pea sized) and a number of cloud-to-ground lightning strikes. I then followed the weakening storm back down I-93S as it moved away to the east giving me a little bit of a lightning show.
DAYS 1-5 (JUNE 1-5)
So, what’s ahead now that June is here? Basically more of the same weather pattern we’ve been in, but there will be some nice weather too. The first 4 days of this new month will not be all that bad, with only passing shower/t-storm threats from a couple fronts moving through the region today and Friday. When we get to Sunday we’ll be watching approaching low pressure from the west. There are many graduations and other activities planned outdoors for Sunday and the timing of the onset of any rain will be critical. At this time I continue to feel that it will hold off until the very end of the day or night for most of the region, but will continue to monitor this. That will be the beginning of what may be a lengthy period of cool/damp weather that will bring additional wet weather for the end of this 5-day period.
TODAY: Partly cloudy. Isolated afternoon showers/thunderstorms. Highs 66-73 South Coast, 74-80 elsewhere. Wind W 5-15 MPH.
TONIGHT: Mostly clear. Lows 53-60. Wind W 5-15 MPH.
FRIDAY: Partly sunny. Scattered midday and afternoon showers/thunderstorms. Highs 64-73, coolest South Coast. Wind SW 10-20 MPH.
FRIDAY NIGHT: Partly cloudy. Lows 53-60. Wind W 5-15 MPH.
SATURDAY: Partly sunny. Highs 63-70. Wind NW 10-20 MPH.
SUNDAY: Increasing clouds. Chance of rain at night. Lows 53-60. Highs 60-67.
MONDAY: Cloudy. Chance of rain/drizzle. Lows 48-55. Highs 56-63.
DAYS 6-10 (JUNE 6-10)
A very cool and unsettled period of weather with the cloudiest and wettest likely to be at the beginning but very slow to break out after.
DAYS 11-15 (JUNE 11-15)
Drier weather expected but temperatures still likely running on the cooler side of normal.