Monday 9.13.21

Good morning!

With mostly sunny skies, expect a high around 78 today, with a west-northwest wind of 5-10 mph. Tonight will be mostly clear and 52, with a light north wind. Tuesday will be mostly sunny and 74, with a light wind – initially coming from the north, but shifting to the south throughout the day. Tuesday night will feature increasing clouds, with a low around 62, a chance of a scattered shower late, and a south wind around 5 mph.

weather 2021-09-13.001

Wednesday will be partly sunny and 83, with a chance of afternoon thunderstorms. Showers are possible Wednesday night, with a low around 64. Thursday will be mostly cloudy and 71, with a chance of showers. The shower threat continues into Thursday night, with a low around 60. Showers are likely Friday, with a high around 72.

weather 2021-09-13.002

Have a great day!
-Nathan

Tuesday 9.7.21

Good morning!

With sunny skies, expect a high around 79 today, with a west wind of 5-10 mph. Tonight will be clear and 57, with a light southwest wind.

Wednesday will be mostly sunny and 83, with a south wind of 5-15 mph. Wednesday night will have skies turning cloudy, with rain likely late, a low around 66, and a southwest wind of 5-15 mph.

weather 2021-09-07.001

Going into Thursday, rain is likely for much of the day, with a high around 74; embedded thunder is also possible. Showers are possible early Thursday night, giving way to clearing skies with a low around 56. Friday will be sunny and 73, Friday night will be clear and 53, and Saturday will be sunny and 75.

weather 2021-09-07.002

Have a nice day!
-Nathan

 

Wednesday 9/1/21 – Significant Flooding Possible Tonight

Good morning! For those of you visiting my site from the UML Weather Center social media pages (due to the continued outage of the Weather Center site), welcome back to campus, Riverhawks!!! I’m Nathan Coram, co-President of the AMS student chapter and a senior in the meteorology program. This is my local forecasting site I’ve been using for 6 years now (to the day, actually!), and I’ve used this a few times as a stand-in for the Weather Center blog and forecast site this summer. That site was knocked down by the IT outage in June, and is just passing its final security checks in the coming days. The site will then be brought back online for the public to use.

With mainly cloudy skies, expect a high around 72 for today, with a mainly calm wind. The remnants of Hurricane Ida will deliver a significant impact to our area this evening into tomorrow morning. Far and away, the main impact will be heavy rain. Rain begins this evening, which could cause some issues for the evening commute. The heaviest rain will be overnight tonight into the morning commute tomorrow, before winding down.

Expect 2 to 5 inches of rain, with a newly increased likelihood of reaching the higher end of that range as forecast trends bring heavier rain further north. Some locations in Southern New England will likely see 5-8″ of rain, but the best chance of that is south of the Mass Pike. Flooding impacts are likely tonight and tomorrow morning; there is a possibility of a major impact for the morning commute tomorrow. Given the high amount of rain in a relatively short amount of time (combined with the overall rainy stretch we have been in), expect smaller bodies of water to rise fast. Urban area, poor-drainage area, and small stream flooding could be very serious. The possibility exists for flooding in some smaller rivers as well. Some basements may even flood, so have a plan to handle water in the basement. The highest risk of serious impacts remains south of the Mass Pike; however, the risk of a serious impact covers all of Southern New England and potentially the southern tier of Northern New England. Overall, this could be a very serious flooding event, so be prepared NOW for possible disruptions!

Gusty winds are also a possibility tonight and tomorrow, with gusts up to 35 mph possible. While this won’t be the main issue, some pockets of wind damage are possible. Expect a low around 58 tonight, and a high around 68 tomorrow. Sustained winds will be out of the northeast at 5-15 mph, shifting to the north and eventually northwest at 10-20 mph. Skies clear out in the afternoon Thursday as Ida’s remnants move away. Expect mostly clear skies Thursday night, with a low around 54, and a northwest wind of 5-10 mph.

weather 2021-09-01.001

Going forward, expect a nearly perfect start to Labor Day weekend. Expect a high around 69 with mostly sunny skies Friday. Friday night will be mostly clear and 53; Saturday will be mostly sunny and 76; and Saturday night will be partly cloudy. Sunday will also be a very good day, but there is a slight chance of an afternoon shower; expect a high around 75 with partly sunny skies. Showers are possible Monday as an upper-level low may cross the area, though it’s early and still outside the scope of the 5-day forecast, so Monday may still be salvageable – stay tuned.

weather 2021-09-01.002

Have a good day!
-Nathan

Tropical Storm Henri – 8 AM Saturday 8.21.21 Update

Good morning! Tropical Storm Henri is headed right for the south coast of New England, although it will weaken very rapidly as it makes landfall, which will lead to limited impacts outside of far southern New England and southeast New York. Trends yesterday brought the landfall area all the way to western Long Island with a second landfall in southwest Connecticut. The NHC forecast as of 8 am (below) reflects an idea similar to this, although overnight guidance actually brought the track to the east, with a landfall over southeast Connecticut or Rhode Island now being more likely.

weather 2021-08-21.003
In any event, barring a dramatic shift in the landfall toward Cape Cod, we should remain east of the track, which leaves the Lowell/Dracut area (and surrounding areas of northeast MA and southern NH) out of the heaviest rainfall. Right now, it looks like a half-inch to 1.5 inches of rain is likely here, mostly Sunday afternoon into early Monday morning. Well to the west, over 4″ of rain is possible in portions of western CT, western MA, and southeast NY. However, given the amount of rain we have had recently, minor flooding issues are still possible. Always remember to avoid flooded roads. In the event there is a bigger track shift to the east, that could put us in play for 2″ or more of rain and I’ll have an update if that becomes more likely.

As for wind, the strongest winds will also stay away from our area. Tropical storm force sustained winds are likely for a portion of the CT/RI coasts, Long Island, and potentially southeast MA for a period of time Sunday evening. The system will dramatically weaken as soon as it makes landfall, so in our region, expect winds of 10-20 mph, with a period of gusts of 30-40 mph, Sunday afternoon and evening. While it won’t be a major issue locally, minor damage is possible. This shouldn’t be affected too much by any track shifts, as the storm would have to retain some strength as it approaches the Mass Pike and beyond for us to truly get into some stronger winds. It looks like that is not going to happen, as the storm looks to weaken dramatically upon landfall.

I will have an update this afternoon if changes to the forecast warrant. Have a good day!

-Nathan

Thursday 7.8.21: T.S. Elsa Evening Update

Good evening everyone, and welcome to readers coming from the UML Weather Center! The Weather Center site (which I often post to as a UML meteorology student) is down, so I’m sharing this post to the UML social media pages.

We are about to see some impact from Tropical Storm Elsa as it makes its way up the East Coast. Ahead of the storm, some showers (with embedded thunder also possible) are likely in the area this evening. On-and-off showers and thunderstorms are likely, before the main batch of rain moves into the area around sunrise tomorrow. Steady and heavy rain is likely after 5 am tomorrow, continuing for much of the day before ending by the early evening. Embedded thunderstorms are also possible.

Expect 2-4″ of rain over the next 24 hours or so. This may lead to flash flooding issues, especially in poor-drainage areas. The risk for flooding is exacerbated by the amount of rain we have had in the last week or so. Remember to never drive your vehicle into areas where water covers the road – turn around, don’t drown! Remember to move any sensitive belongings from your basements or ground floor, as the risk of flooded basements is prominent.

Rain is the primary hazard with Elsa, with wind being a potential secondary hazard. Significant wind is not expected, but with wind gusts likely peaking at 30-35 mph, some minor damage and isolated power outages are possible. Isolated tornadoes are possible in eastern and southern New England tomorrow morning and early afternoon, so keep a close eye on the weather and have a way to get warnings.

Any impacts should be ending by the evening tomorrow, as Elsa pulls away from the region.

I will have an update later tonight if necessary.
-Nathan

Thursday 7.1.21

Good morning!

Our heat wave has come to a crashing end, but expect very humid conditions to remain for a day or so. With skies turning cloudy today, along with rain likely in the afternoon (and especially the evening), expect a high around 79 today, with a west wind around 5-10 mph. Tonight will feature rain, with a low around 62, and a south wind around 5 mph, turning to the northeast at 5-10 mph.

We have a relatively unusual situation for this time of the year on our hands: a midnight high for Friday! The official high for tomorrow will probably be in the upper 60s to near 70 at midnight tonight, but for practical purposes, your daytime high will be around 62 at sunrise, with temperatures falling into the upper 50s by midday and then just staying there. Expect showers at times, with a northeast wind of 5-15 mph. Showers are likely Friday night, with a low around 54, and a northeast wind of 5-10 mph.

weather 2021-07-01.001
While the weekend won’t be 100% junk like Memorial Day weekend was, the Fourth of July weekend won’t be that far off, as we will be experiencing essentially a very weak Nor’Easter. We will now be 0-for-2 in terms of weather on big summer holiday weekends. (What will Labor Day weekend bring us?) Saturday will be even worse than Friday in some regards: with a cold northeast wind off the Gulf of Maine, expect a high around 57 Saturday. Scattered showers will be around, but even though it likely won’t be a washout, it will be cold, damp, and cloudy throughout.

There is a continuing chance of showers Saturday night, with a low around 54. Conditions improve somewhat Sunday, as right now it looks like we’ll get to around 70 degrees with at least partial sunshine. There will still be lots of clouds and some showers, as the low pressure system inches its way out of our region, but this is still pretty terrible for the Fourth of July. We finally see real improvement Sunday night, as clouds decrease with a low around 55, and especially Monday, which will be mostly sunny and 82. The real saving grace here is that Monday is the official holiday for the Fourth of July, so many of you will have the day off. Expect highs to approach the 90-degree mark once again by Tuesday.

weather 2021-07-01.002

Have a great day!
-Nathan

6.30.21 – Severe Weather Update 1 (11:30 AM)

The National Weather Service has a relatively rare Enhanced Risk of severe weather (level 3 out of 5) listed for our area. Strong to severe storms are likely this evening, especially after 5 pm. Damaging wind gusts are the main threat, along with heavy rain, hail, and lightning. I’m actually off work somehow, so I’ll have updates as the afternoon and evening progresses on the social media pages.

Monday 6.28.21

Good morning!

With mostly sunny skies, expect a high around 98 today, with a southwest wind of 5-10 mph, gusting up to 25 mph at times. With very high temperatures approaching 100 and very humid conditions with dew points over 70, heat index values will break the 100-degree line, with values up to 103 expected each of the next three days; please make sure to stay hydrated and cool, and know the signs of heat exhaustion and heat stroke. The handy graphic below from the National Weather Service has some very valuable information. (Speaking of the National Weather Service, there is – unsurprisingly – a heat advisory in effect for today, tomorrow, and Wednesday.)

Heat Stroke Visual

Tonight will be mostly clear, with a low around 76, and a southwest wind around 5 mph. Tuesday will be mostly sunny and 98, with heat index values up to 103, and a west wind around 5 mph. Tuesday night will be partly cloudy and 73, with a slight chance of a thunderstorm early, and a light west wind. Note that there is an incredibly small chance of an isolated and brief shower or storm developing Tuesday afternoon; the chance is so low that it’s not worth putting on the graphic.

weather 2021-06-28.001

Wednesday will be mostly sunny and 97, with heat index values up to 103. Like Tuesday afternoon, there is a very remote chance of a quick shower or storm Wednesday afternoon, but it was much too low to warrant a mention on the graphic. There is a considerably higher chance of showers and thunderstorms Wednesday night, though; expect mostly cloudy skies with a low around 71.

Thursday will be mostly cloudy and 84, with a chance of showers and thunderstorms throughout the day. Expect a continuing chance of showers and storms Thursday night, with a low around 65 and mostly cloudy skies. Friday will be mostly cloudy and 71, with a chance of showers.

weather 2021-06-28.002

Have a great day and stay cool!
-Nathan

Friday 6.18.21

Good morning!

With mostly sunny skies, expect a high around 84 today, with a southwest wind around 5 mph. Tonight will have increasing clouds, with a low around 64, a southwest wind around 5 mph, and a chance of showers during the late overnight hours.

Tomorrow will have partly sunny skies, with a high around 86. There is a chance of showers in the morning, and a chance of thunderstorms in the evening; the midday hours and much of the afternoon will likely be dry. In the evening, some storms may be strong to severe with strong wind gusts, hail, lightning, and heavy rain possible. Expect a southwest wind around 5 mph, with much higher gusts possible in evening thunderstorms. The thunderstorm chance will continue until around midnight, after which decreasing clouds can be expected; expect a low around 63 Saturday night, with a southwest wind around 5 mph.

weather 2021-06-18.001

Sunday will be sunny and 89; Sunday night will be clear and 64. Monday will be 92 and mostly sunny; Monday night will be mostly clear and 70. There is a chance of afternoon thunderstorms Tuesday, along with increasing clouds and a high around 84.

weather 2021-06-18.002

Have a great day!
-Nathan

Friday 6.4.21

Good morning!

With mostly cloudy skies, expect a high around 88 today, with a southwest wind of 5-10 mph. There is a chance of showers and thunderstorms this afternoon; the latest guidance has honed in on a line of showers and storms forming this afternoon. Some showers may form ahead of the line, but guidance is in agreement on the back end of the storms exiting the Dracut area by 6 pm. Outdoor graduations look safe as a result; however, you may want to bring a towel, so your rear end doesn’t get soaked if the seats are wet. We will be near the northern edge of the line, so it’s not impossible that we miss the rain entirely. In any case, it will be a nice night for graduations with decreasing clouds, as well as temperatures falling from the mid 70s to the upper 60s. Congrats to the Class of 2021!

Expect decreasing clouds to continue overnight, with a low around 61, and a southwest wind around 5 mph. Saturday is the first day of an extended stretch of heat, with a high around 88, and a southwest wind of 5-15 mph. Saturday night will be mostly clear and 69, with a west-southwest wind of 5-10 mph.

weather 2021-06-04.001

Sunday will crank up the heat further, with sunny skies and a high around 93. Sunday night will be clear and 71. Expect a high around 95 Monday with sunny skies, and a low of 72 Monday night with mostly clear skies. Tuesday will probably be the last day of the big heat, with a high around 97 as well as mostly sunny skies. Wednesday will likely be in the 80s, and the rest of the week will likely be in the 70s. Wednesday also looks like the next potential chance of any rain after today.

weather 2021-06-04.002

Have a great day!
-Nathan