Timeline Of Severe Weather Released, Hazardous Weather Outlook Issued Today In CT

UPDATE: 6 p.m.: From Metro-North: Danbury Branch customers are experiencing delays of 30-35 minutes because of earlier weather-related issues and main line delays. New Canaan Branch customers are experiencing delays of 75-80 minutes because of earlier weather-related issues and main line delays.

UPDATE: 5:35 p.m.: The National Weather Service issued a flash flood warning until 7:30 p.m. for southern sections of Fairfield County.

"At 535 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly."

Some locations that will experience flash flooding include: Bridgeport, Stamford, Norwalk, New Canaan, Fairfield, Greenwich, Westport, Darien, Wilton, Weston and Easton.

UPDATE 5:25 p.m. "A strong thunderstorm will impact portions of southern Fairfield and central Westchester Counties through 6 p.m."

"At 507 PM EDT, Doppler radar was tracking a strong thunderstorm over Harrison, or over White Plains, moving northeast at 35 mph."

HAZARD...Winds in excess of 40 mph.

Locations impacted include: Stamford, Norwalk, White Plains, Port Chester, New Canaan, Fairfield, Greenwich, Harrison, Westport, Ridgefield, Darien, Wilton, Scarsdale, Weston and Redding.

UPDATE: 5:08 p.m. Metro-North update: New Haven Line service has resumed with delays up to 70 minutes. The flooding condition in the Bronx has receded.

UPDATE: 4:40 p.m. The National Weather Service has issued a flash flood warning for southern Fairfield County until 6 p.m.

"At 429 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Flash flooding is already occurring."

Some locations that will experience flash flooding include: Yonkers, Stamford, New Rochelle, White Plains, East Tremont, Port Chester, Rye, Dobbs Ferry, Harlem, Greenwich, Riverdale, Co-op City, Fort Lee, Harrison, Scarsdale, Bronxville, Hawthorne, City Island, Mount Vernon and Eastchester.

UPDATE: 4:35 p.m. Metro North said that the Harlem and New Haven Line service is temporarily suspended into and out of Grand Central Terminal because of a "series of impacts from a severe summer storm moving through our area. We strongly advise that you delay traveling until we can restore train service."

UPDATE: 4:15 p.m. ...A strong thunderstorm will impact portions of southern Fairfield County through 500 PM EDT...

At 412 PM EDT, Doppler radar was tracking a strong thunderstorm over Harrison, or near Port Chester, moving northeast at 30 mph.

HAZARD...Winds in excess of 40 mph.

IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects.

Locations impacted include...
Bridgeport, Stamford, Norwalk, New Canaan, Fairfield, Greenwich,
Westport, Darien, Wilton, Weston, Redding and Easton.

UPDATE: 3:05 p.m. The National Weather Service has issued a severe thunderstorm warning for southern Fairfield County until 3:45 p.m. "At 259 PM EDT, a severe thunderstorm was located over Scarsdale, or near Rye, moving east at 30 mph."

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

* This severe thunderstorm will be near...
Rye around 305 PM EDT.
Port Chester around 310 PM EDT.
Darien around 330 PM EDT.

A flash flood warning has also been issued for southern Fairfield County until 4:30 p.m.

"At 304 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

* Some locations that will experience flash flooding include...
Yonkers, Stamford, New Rochelle, White Plains, East Tremont, Port Chester, Rye, Dobbs Ferry, Harlem, Greenwich, Riverdale, Co-op City, Fort Lee, Harrison, Scarsdale, Bronxville, Hawthorne, City Island, Mount Vernon and Eastchester.

UPDATE 2:45 p.m.: A strong thunderstorm will impact portions of northwestern New London and northern Middlesex Counties through 315 PM EDT...

At 235 PM EDT, Doppler radar was tracking a strong thunderstorm near Haddam, or near East Hampton, moving northeast at 25 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible.

Locations impacted include...
Middletown, Norwich, Colchester, East Hampton, Salem, Portland, East Haddam, Haddam, Lebanon, Sprague, Bozrah, Lake Pocotopaug--East Hampton, Franklin, Moodus and Higganum.

UPDATE: The National Weather Service has issued a severe thunderstorm watch for Fairfield and Litchfield counties until 10 p.m. Monday.

CONNECTICUT — We can definitely use the rain.

The National Weather Service has issued a hazardous weather outlook for the entire state, as rain showers and thunderstorms are possible on Monday, especially during the afternoon and evening hours.

The main concerns are strong wind gusts, downpours and a low risk of an isolated tornado, according to the weather service.

In a statement covering all of southern Connecticut, the weather service said, "There is the potential for multiple rounds of showers and thunderstorms today into this evening as a frontal system impacts the area. The Storm Prediction Center has placed the area under a marginal risk for isolated severe thunderstorms, mainly during the afternoon and evening hours. The main threats would be damaging wind gusts and an isolated tornado. Some of the storms will also produce heavy downpours, which could lead to localized flooding of urban, low lying and poor drainage areas."

And in a statement covering northern Connecticut, the weather service said, "Numerous showers and scattered thunderstorms expected today into tonight, especially across the interior. Strong to severe storms are possible, with the main risk of damaging wind gusts and locally heavy downpours. A brief isolated tornado cannot completely be ruled out. The risk of strong to severe storms is highest from noon to 10 PM."

WTNH News 8 chief meteorologist Gil Simmons wrote on social media that there are "two rounds of what could be some rough weather today."

"Round number one this morning and round number two later this afternoon going into the evening. Keep your phone charged and close by in case there is a warning," Simmons advised. (Read more weather details at News 8 here).

Once the stormy weather departs, then the big story is excessively high temperatures and humidity, which will be around for the remainder of the week. It could feel as hot as 100 degrees in parts of the state, especially on Wednesday and Thursday, according to the weather service.

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Here are the stormy Monday forecast details for southern Connecticut:

Today: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 82. Light southeast wind becoming south 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms, mainly between midnight and 2am. Mostly cloudy, with a low around 71. Southwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Here are the stormy Monday forecast details for northern Connecticut:

Today: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Some of the storms could produce gusty winds and heavy rain. Cloudy, with a high near 81. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: A chance of showers and thunderstorms, mainly before 2am. Some of the storms could produce gusty winds and heavy rain. Mostly cloudy, with a low around 71. South wind 9 to 14 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.