FORECAST: Rainy, soggy conditions will continue

UPDATE, 8:30 a.m.: For the next several days, more normal wet season pattern conditions are in the forecast, which may cause some flooding of roadways with poor drainage, or in low lying areas.

Another round of deep moisture will return by the end of the week.

Local areas are experiencing the following rainfall levels:

Boca Raton – 1.97″

West Palm Beach  – 1.95″

Jupiter – 2.11″

A flood advisory has been extended for Martin County until 10:30 a.m. Some locations that will experience flooding include
Port Saint Lucie, Walton, Fort Pierce, Stuart and Fellsmere.

UPDATE, 7:30 a.m.: The National Weather Service has extended the flood advisory until 8:30 a.m. for St. Lucie County, Central Indian River County and Central Martin County.

The radar indicates heavy rain due to thunderstorms. This will cause minor flooding in the advisory areas.

Some locations that will experience flooding include Port Saint Lucie, Walton, Fort Pierce, Sebastian and Stuart.

UPDATE, 5:50 a.m.: The National Weather Service has issued a flood advisory until 7:30 a.m. for St. Lucie County and Martin County. Light to moderate rain is expected throughout the day for Palm Beach County. There is also a high risk of rip currents on Atlantic beaches.

The radar indicates heavy rain and isolated lightning storms that will cause minor flooding in the advisory area. Up to one to two inches of rain has already fallen.

Some locations that will experience flooding include Port Saint Lucie, Fort Pierce, Stuart, Palm City and White City.

UPDATE, 8:45 p.m.: The National Weather Service expects more light to moderate rain through the night, with some heavier rain along the coast later at night. About one to four added inches of can be possible.

Additionally, the flood watch in Broward County has been extended through noon on Monday.

UPDATE, 4 p.m.: Tonight’s weather in West Palm Beach will likely be much of the same. The National Weather Service predicts a 60 percent chance of rain with showers and a possible thunderstorm before 8 p.m., then scattered rain and thunderstorms between 8 p.m. and 2 a.m. Monday.

Some of the storms could produce heavy rain, the weather service said.

There is also a high rip current risk in effect through Monday evening, according to the National Weather Service. The rip currents will be dangerous along the Atlantic beaches.

UPDATE, 11 a.m.: The National Weather Service has expired the flood watch for Palm Beach County.

“The heaviest rain is over and most of the highest accumulations occurred in rural areas (in Palm Beach County),” said NWS meteorologist Steven Ippoliti in a release.

The flood watch will continue, however, for Broward County, as that region has received the brunt of South Florida rain the last two days. The flood watch will be extended until 8 p.m. today in Broward.

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Forecasters say the rain may continue through the afternoon in the form of scattered showers and a possible thunderstorm. The chance of precipitation for the rest of today is 60 percent. That rain chance continues through tonight into tomorrow morning.

According to the South Florida Water Management District, slightly more than 2 inches of rain had fallen in coastal Palm Beach County in the 24 hours ending at 8 a.m. today. Rural parts of the county have seen more than 3 inches in some spots.

ORIGINAL STORY: A flood watch is in effect for Palm Beach County until 11 a.m.

Showers and some thunderstorms, along with heavy rainfall, will periodically impact South Florida today, according to the weather service.

Check today’s rain with our radar. Click here.

Rain is likely to continue through the evening, and the forecast calls for similar weather throughout the early week, with rain especially heavy tomorrow before tapering to scattered showers Tuesday.

According to a weather service report this morning, much of Palm Beach County is expected to get upwards of two inches of rain through Wednesday.

Hurricane center eyes first possible tropical system of 2018

The National Hurricane Center has identified the first potential tropical system of 2018, giving an area of storminess in the Gulf of Mexico a 40 percent chance of formation over the next five days.

The disturbance, which would be named Alberto if it forms up, has a 30 percent chance of developing into a tropical or subtropical system over the next 48 hours.

Forecasters have been watching the area in the eastern Gulf of Mexico for days as a dipping jet stream was expected to give a developing area of low pressure some energy.

LIVE RADAR: Check The Palm Beach Post’s radar map.

“At this point the intensity doesn’t matter because it already is what it’s going to be – a big blob of rain,” said Dave Samuhel, a senior meteorologist for AccuWeather. “It’s going to have some wind, but mostly a lot of rain that will open a channel of moisture over Florida all week.”

Weather Underground co-founder Jeff Masters predicted Friday that a subtropical or tropical system could form up by Wednesday near the coast of the Panhandle.

That would be two weeks before the official June 1 start date of the hurricane season.

GOES 16 satellite image through 5:30 p.m.

“Sea surface temperatures off the coast of the Florida Panhandle are near 77 degrees – a little cooler than is typically needed to see a tropical depression form, but plenty warm enough to support formation of a subtropical depression,” Masters said in a Friday blog.

A subtropical storm typically has its fastest winds further from its core and may not carry as much rainfall as a tropical storm. A tropical storm also has more pure thunderstorms wrapping around its core, which increases its potential for strengthening.

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“This one has a pretty low ceiling for its upper-level potential,” Samuhel said about the disturbance in the Gulf.

The National Hurricane Center expects the area of low pressure to move slowly north during the next few days, hugging the west coast of the state.

For the past three years, tropical systems have formed before the June 1 start date of hurricane season.

Tropical Storm Arlene formed in April 2017. In 2016, Hurricane Alex formed in January, followed by Tropical Storm Bonnie spinning up in May. Tropical Storm Ana formed in May 2015.

A leading hurricane forecast from Colorado State University released in April predicted a slightly above normal season this year, but an early storm isn’t necessarily an indicator of that.

In 2012, two tropical storms occurred in May — Alberto and Beryl. That turned out to be a busy year with 19 named storms and 10 hurricanes. But in 2015 Tropical Storm Ana formed in May, and there were just 11 named storms and four hurricanes that year.

The next forecast from the National Hurricane Center is scheduled to be released at 11 a.m. Monday.

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UPDATE, 4 p.m.: An area of cloudiness, showers and thunderstorms making its way through the southeastern Gulf of Mexico could have an impact on what promises to already be a wet early part of next week for Palm Beach County.

The National Hurricane Center reports that the area — which could acquire subtropical or tropical characteristics as it moves northward through the gulf — may “enhance rainfall across portions of Florida … during the next few days.”

There’s a 40 percent chance the disturbance could form into a tropical or subtropical system in the next five days, giving us an early start to the tropical weather season.

UPDATE, 12:30 p.m.: The National Weather Service’s significant weather advisory has expired, although several rain areas continue to move through Palm Beach County.

The rain is expected to continue through the evening. The National Weather Service expects between 1 and 2 inches to fall through the night.

According to updated numbers from the National Weather Service, between three and four inches of rain are expected for coastal Palm Beach County through Wednesday morning.

UPDATE, 11:15 a.m.: The National Weather Service has issued a significant weather advisory for Palm Beach and northern Broward counties until 11:45 a.m.

The area of concern is a line of storms extending “from the Port of Palm Beach to 14 miles northwest of Parkland to nine miles northeast of the Miccosukee Service Plaza (along Florida’s Turnpike),” according to the advisory.

The communities mentioned cover north and central Palm Beach County, west to Lion Country Safari.

The advisory warns of winds in excess of 45 mph and possible funnel clouds.

UPDATE, 11 a.m.: A streak of heavy rain is making its way through central Palm Beach County, with more expected for the rest of the day. The rain is moving in a northwest direction, according to Palm Beach Post radar.

ORIGINAL STORY: Mother’s Day may be a wet day for brunch, with rain expected to begin around 11 a.m. on the coast, according to the National Weather Service.

Some smaller storms have already begun to pop up west of Boynton Beach near U.S. 441, according to Palm Beach Post radar.

According to the weather service, there may be gusts up to 25 mph and locally heavy rain in the next few hours. This rain is expected to be the start of several days of soaking weather through Wednesday.

A recent weather service graphic shows the heaviest amount of rain will be coming down from West Palm Beach north through Jupiter. Jupiter is expected to get nearly 3 1/2 inches through Wednesday, while West Palm south to Boca Raton is expected to get more than three.

According to the weather service’s high-end prediction, there is a 10 percent chance these areas could get up to 5 inches of rain through Wednesday.

As it did Friday, the Weather Prediction Center of the NWS has Palm Beach County within an area of marginal risk — between 5 and 10 percent — for rainfall “exceeding flash flood guidance”. That means there’s a small chance rain will be heavy enough to cause some flooding.