Temperatures crash Friday with first significant cold front

Friday’s daytime high temperature could be more than 15 degrees cooler than today as a front pushes through ushering in arctic air.

Today’s daytime high in West Palm Beach is expected to reach a sunny 84 degrees, while Friday will struggle to get out of the 60s.

Forecasters at the National Weather Service in Miami called the pending cold front “vigorous” and said this morning they are not expecting much rain with this front. The front is attached to a bombing low pressure system that will whack New England today, dumping snow and frigid rain.

Check The Palm Beach Post radar map.

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“South Florida will get a taste of winter to close out 2016 and kick off 2017,” forecasters wrote. “Not much is expected in terms of rain with this front. The real story is the cooler, drier air expected in its wake.”

The coldest temperatures are expected Saturday morning.

That’s when “widespread 40s and 50s come calling for southern Florida,” forecasters said.

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When will the cold front arrive at your house? 

Jupiter, 63 at 6 a.m. High for the day, 66. 

West Palm Beach, 59 degrees at 6 a.m.  High for the day, 67. 

Royal Palm Beach, 57 degrees at 7 a.m. High for the day, 67. 

Wellington, 57 degrees at 7 a.m. High for the day, 67. 

Delray Beach, 62 degrees at 6 a.m. High for the day, 68. 

Boynton Beach, 61 degrees at 5 a.m. High for the day, 67. 

Boca Raton, 61 degrees at 7 a.m. High for the day, 68. 

With the cold air will also be strong winds of up to 34 mph, and waves as high as 14 feet in the Gulf Stream. A small craft advisory has already been posted today ahead of the front.

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A high risk of rip currents is expected along Palm Beach County’s beaches.

The cold temperatures won’t last long. By Saturday, the daytime high is forecast to be in the mid-70s and closer to 80 on Sunday.

The front will mean wind shifts from north at up to a sustained 21 mph in West Palm Beach on Friday to southeast Saturday.

“The marine conditions are going to deteriorate quite a bit after the front moves through,” said Robert Molleda, warning coordination meteorologist for the National Weather Service in Miami. “It’s going to be pretty rough out on the water and might not be the best weekend for boating.”

In the Northeast, winter storm warnings, high wind warnings and winter weather advisories are already in place with as much as two feet of snow expected in parts of New England.

The Weather Channel is calling this storm Fortis, and warning of bombogenesis as the low goes through rapid intensification.

Bombogenesis, or when a storm “bombs out”, happens when a low pressure system drops at least 24 millibars in pressure in 24 hours.

Visible satellite imagery shows the front moving toward Florida at 7 a.m.

Visible satellite imagery shows the front moving toward Florida at 7 a.m.

This map valid at 7 p.m. tonight shows the front approaching South Florida. It is expected to push through overnight.

This map valid at 7 p.m. tonight shows the front approaching South Florida. It is expected to push through overnight.

 

 

 

 

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