CT Weather

12/20/2024

Forecast Discussion 12/20:

Snow showers are expected to break out today after 11AM from SW to NE across CT. The precipitation may initially start as some rain at the shoreline, where temperatures will be around 35 degrees. Temperatures generally 30 to 34 degrees across the interior will result in all snow, but initial showers may have trouble sticking to paved surfaces, especially across the urban corridor and high traffic areas. Temperatures drop and sun angle diminishes through the afternoon, resulting in snow that could stick within steadier snow showers between 3PM and 8PM. A general Coating to 1.0 (C-1) inches is expected across CT and the Hudson Valley, with some towns potentially reaching 2.0 inches. The snow showers will taper off in the evening, with a long lull Friday night until additional snow showers move in Saturday morning, between about 5AM and 10AM. The latest models have relegated these to Western Zones, but colder temperatures should allow anything that falls to readily stick. Another separate C-1 is possible during this interval.

Skies Saturday afternoon become mostly sunny, with a cold NW flow. Winds are expected to gust 20 to 25 mph Saturday afternoon and Saturday night, so bundle up if heading out! Highs Saturday will only be in the upper 20s, and highs Sunday will struggle out of the lower 20s. Lows could reach the single digits across the interior, with wind chill values below zero at times.

Long range, another system may bring snow showers Christmas Eve, with additional light accumulations possible. This will need to be monitored in the coming days. A warmer pattern will then emerge after Christmas, with above average temperatures expected heading into New Years Day.

12/20/2024

Analysis of the light snow threat as much colder air works into the area. Snow showers during the day on Friday and again Saturday morning may put down a coating to inches through the region, although CT is largely spared

12/19/2024

Tremendous sunset tonight in Western CT!

📸 Tracy Emmerson Clarkson

12/19/2024

Forecast Discussion 12/19:

Rain has ended but patchy black ice is being reported this morning across the far interior as a NW flow has resulted in temperatures dropping to near or below freezing in some locations. Generally cooler air moves in for Thursday with highs in the upper 30s to low 40s for many before conditions turn COLDER for Friday through early next week.

A weak clipper system will move through late Friday and Friday night and interact with a coastal system offshore. This is a complex interaction, so please stay tuned for forecast updates. While this likely won’t be a major storm, models are in generally good agreement for at least some snow shower activity Friday afternoon through Saturday morning. The latest GFS/Euro blend shows the possibility of coating to an inch of across the much of the region, with a couple of inches possible in the Hudson Valley, Western CT, and Northern CT. Eastern CT and RI is also a bit of a wildcard but would lean conservative for that area for now. Highs on Saturday will struggle to get above freezing for most. Highs on Sunday will struggle to even get out of the middle 20s. Partly to mostly sunny skies are expected during this interval.

Long range, another system may bring snow showers Christmas Eve into Christmas Day. This will need to be monitored in the coming days. A warmer pattern will then emerge after Christmas, with above average temperatures expected heading into New Years Day.

12/19/2024

Analysis of the cold airmass moving in as well as the light snow event for Friday night that may result in a Coating to 2 inches through the region.

12/18/2024

Forecast Discussion 12/18:

Clouds increase during the day Wednesday ahead of yet another low-pressure system that impacts the area late Wednesday afternoon and Wednesday night with plain rain expected throughout the area. Expect rainfall to start between 4PM and 7PM This system will be in and quickly with a general 0.4 to 0.8 inches of rain forecast. Rainfall will move out of the area in the early hours of Thursday morning. Temperatures will be in the upper 30s to low 40s during the event.

Cooler air moves in for Thursday, and conditions turn cold for Friday through Sunday. A weak clipper system will move through late Friday and Friday night, that may produce some snow shower activity. The latest GFS/Euro blend shows the possibility of coating to an inch of across the region. Highs on Saturday will struggle to get above freezing for most. Highs on Sunday will struggle to even get out of the middle 20s. Partly to mostly sunny skies are expected during this interval.

12/18/2024

Rain.. Cold.. Snow.. Warmth.. We have it all in the latest article!

After temperatures in the 50s Tuesday and another rain event Wednesday (more water is still good for the deficit) it appears we will see our coldest arctic airmass of the season Friday through Monday. This airmass is currently residing in the Yukon territory of Canada and will gradually make its way...

12/17/2024

Forecast Discussion 12/17: More rain Coming... Then COLD

Rain moved out of the area this morning between 4AM and 6AM, with clearing skies and mild temperatures set to develop by mid to late morning. Highs will be in the low to middle 50s for most, making this a very pleasant December Tuesday afternoon. Partly cloudy skies and light winds will allow temperatures to drop below freezing again on Tuesday night, with patchy black ice possible, especially near areas of runoff from recent rain.

Yet another low-pressure system impacts the area Wednesday afternoon and Wednesday night with plain rain expected. This system will be in and quickly with a general 0.4 to 0.8 inches of rain expected. Cooler air moves in for Thursday, and conditions turn cold for Friday through Sunday. A weak clipper system will move through late Friday and Friday night, that may produce some snow shower activity. Highs on Saturday will struggle to get above freezing for most. Highs on Sunday will struggle to even get out of the middle 20s.

12/16/2024

Forecast Discussion 12/16:

Wintery mix is being reported in many areas this morning across CT and NY. The atmosphere was just cold enough for areas along and north of I84 to stay mostly snow until about 5AM, which resulted in snow totals overperforming, especially in the hills of Western CT. A general 2 to 4 inches of snow is being reported around the Danbury to New Milford area on into Litchfield County. Since about 5AM precipitation has transitioned to a mix for many. I want to highlight freezing rain is being reported in the valley around Hartford, and this may continue well into the morning as cold air appears to be trapped! This could continue to cause hazardous conditions and the need for road treatments.

For most places, though, precipitation will end as plain rain or drizzle as temperatures rise this morning. Temperatures get into the 40s this afternoon with additional showers possible through this afternoon and tonight. Rain will taper off by Tuesday morning with clearing skies and very mild temperatures Tuesday. Highs will be in the low to middle 50s for most.

Yet another low-pressure system impacts the area Wednesday afternoon and Wednesday night with plain rain expected. This active pattern will continue with colder air coming in for the end of the week and the potential for some snow showers this Friday night into Saturday. Stay tuned!

12/15/2024

A WINTER WEATHER ADVISORY is in effect for most of interior CT and adjacent NY state tomrrow. Up to an inch of snow is possible in the highest elevations, but the main concern is a few hundredths of an inch of ice accretion. This can make untreated surface extremely slippery.

12/14/2024

Some signal for a storm next weekend as cold air interacts with a southern branch storm system. Definitely something to watch. 18Z GFS below as a depiction of what could happen IF things come together well.

12/12/2024

Forecast Discussion 12/12:

Satellite this morning shows clear skies after the storm system that impacted us for the last couple of days has headed off into Canada. Rainfall totals lived up to expectation, with a general 1.50 to 3.0 inches of rain around the state. Locally higher totals were reported across far Eastern CT and Rhode Island. The winds for the most part underperformed across Southern New England as the Low-Level Jet was observed weaker and further to the east than anticipated. Models were generally off by about 100 miles in placement with this feature. This corresponded to less wind being mixed down to the surface in many areas.

Cooler air has taken hold in the region this morning, with a few areas of black ice being reported. Temperatures will be steady today in the middle to upper 30s, so not much in the way of daytime heating is expected. NW winds will be breezy as well, with gusts to around 30 mph possible through the day.

Friday through Sunday appear largely quiet with seasonably chilly temperatures mostly sunny skies. The next storm system approaches Sunday night. With some cold air in place, precipitation may start as a wintery mix across the interior before transitioning to plain rain on Monday. This will need to continue to be ironed out in the coming days. Longer range, the pattern looks cold and potentially stormy as we enter the week of the holidays.

12/11/2024

A robust storm system will impact the region on Wednesday. Here is the latest…

12/11/2024

Forecast Discussion 12/11: A Raging “Southeaster”

Radar is already lighting up this morning across the region with steadier and heavier rainfall rates making their way into the area. Periods of rain, moderate to occasionally heavy at times, will continue through the day Wednesday. Winds will begin to pick up by mid to late morning as well.

Rain and wind peak in intensity Wednesday afternoon to late Wednesday evening. The forecast is on track for 2.0 to 3.0 inches of rain for most of the area, with locally higher amounts possible across. Latest high resolution guidance is targeting Central CT for the heaviest rain totals, with the HRRR showing a swath of 4.0+ inch amounts across portions of Eastern Fairfield, New Haven, and Hartford Counties. Winds with this system will be notable as well, with SE winds gusting to 50 mph possible for many and perhaps 60 mph over Eastern coastal areas. A WIND ADVISORY is in effect for much of the area with a HIGH WIND WARNING for parts of Coastal CT and Rhode Island. Scattered to numerous power outages remain a distinct possibility through CT, with the highest risk in the HIGH WIND WARNING areas.

The wind will shift out of the NW Wednesday night with dropping temperatures. Despite a dry
wind, areas of runoff from the heavy rain may freeze over become hazardous. Seasonal temperatures and sunshine return for Thursday through Saturday as highs run generally in the upper 30s inland and low 40s by the shoreline.

12/10/2024

Forecast Discussion 12/10:

A dark, damp and dreary December day will be on tap for your Tuesday. Expect overcast skies with areas of fog and periods of drizzle. It will be mild with highs climbing well into 50s at the shoreline and upper 40s inland.

All attention turns to an area of low pressure that will then strengthen over the SE US and begin to approach the region Tuesday night. Periods of rain, moderate to occasionally heavy at times, will break out early Wednesday morning and continue through the day Wednesday. Rain and wind will peak in intensity Wednesday afternoon to late Wednesday evening. The potential is there for 2.0 to 3.0 inches of rain for most of the area, with locally higher amounts possible across Eastern CT and RI. Winds with this system will likely be gusty as well, with SE winds gusting to 50 mph possible for many and perhaps 60 mph over Eastern coastal areas. Given the rain and wind potential, flood and wind headlines may be needed. Stay alert for watches, warnings, and advisories Tuesday into Wednesday. Scattered to potentially numerous power outages are expected.

The wind will shift out of the NW Wednesday night with dropping temperatures. Despite a dry wind, areas of runoff from the heavy rain may become hazardous. Seasonal temperatures and sunshine return for Thursday through Saturday as highs run generally in the upper 30s inland and low 40s by the shoreline.

12/09/2024

Forecast Discussion 12/9:

Morning satellite shows clouds and localized areas of fog throughout the entire region. Monday will feature overcast skies in the morning giving way to periods of rain in the afternoon as a warm front moves through. Given latest observations and model guidance, expecting plain rain to be the primary precipitation mode for everyone, as highs will generally top out in the low to middle 40s throughout the forecast area. A general 0.25 to 0.50 inches of rain is expected, ending Monday evening.

In the wake of the warm front, Tuesday will feature temperatures above average. Expect overcast skies with areas of fog and periods of drizzle. Highs will climb well into the 50s. An area of low pressure will then strengthen over the SE US and begin to approach the region Tuesday night. Periods of rain, moderate to occasionally heavy at times will then continue through the day Wednesday, likely peaking in intensity Wednesday afternoon. The potential is there for 2.0 to 3.0 inches of rain for most of the area, with locally higher amounts possible across Eastern CT and RI. Winds with this system will likely be gusty as well, with SE winds gusting to 50 mph possible for many.

Seasonal temperatures and sunshine return for Thursday through Saturday as highs run generally in the upper 30s inland and low 40s by the shoreline.

12/09/2024

Great news for the drought. More confidence in heavy rain and gusty winds on Wednesday.

This will be a very eventful weather week with multiple storm systems and lots of rain. The first system will move into the region Monday, with rain breaking out via a warm front shortly after noon. Steadier rain will taper to a few showers by Monday evening, with about 0.25 to 0.50 inches of total

12/07/2024

Latest discussion up on our website!

It has been an eventful start to December in the Weather Department, with seasonably cold temperatures and a few light snow events, especially across the interior. Clouds will increase for Saturday afternoon as yet another clipper system approaches the area and moves over the Great Lakes. This will....