First Warning Forecast: Sunshine to start, a few showers possible later in the day

Posted at 6:20 PM, Sep 21, 2018
and last updated 2018-09-21 18:20:20-04

It has been a gorgeous and refreshing day today! Humidity has been lower, and temperatures have been in the low 80s. Clear to partly cloudy skies overnight. Lows in the upper 60s.

Fall arrives on Saturday, but it will be one of our warmest day of the next 7. Temperatures will warm to the mid and upper 80s, it will feel a bit warmer due to the humidity. A cold front will approach giving us a chance for showers and storms Saturday evening. We are looking at a 25 percent chance. We could see a little nuisance flooding at times of high tide. Saturday will be the pick of the weekend.

A bit cooler on Sunday. Temperatures will only warm to the upper 70s but that is where we should be for this time of year. We will have a 40 percent chance for some showers and storms by the later afternoon.

The beginning of the work week is looking a bit on the unsettled side. We are keeping a 30-50% chance for wet weather Monday through Friday. Highs will warm to the low and mid 80s.

Weather & Health 

Pollen: Moderate (Ragweed, Grasses)

UV Index: 7 (High)

Air Quality: Good (Code Green)

Mosquitoes: Extreme

Tropical Update

A low pressure system, associated with a tropical wave, is located about 600 miles south-southeast of the Cabo Verde Islands. Although the showers and thunderstorms have decreased this afternoon, this system is still showing signs of organization. The environmental conditions are forecast to be conducive for slow development, and a tropical depression could form early next week while the system moves westward at 15 to 20 mph across the low latitudes of the eastern and central tropical Atlantic Ocean.

* Formation chance through 48 hours: Low (30%)

* Formation chance through 5 days: Medium (60%)

Updated: Shower and thunderstorm activity associated with a well-defined low pressure system located about 500 miles east of the Windward Islands has become better organized over the past few hours, and a tropical depression could form later tonight or Saturday. Strong upper-level winds and dry air are likely to prevent additional development of this system by late this weekend while it moves west-northwestward to northwestward at around 10 mph.

* Formation chance through 48 hours: Medium (40%)

* Formation chance through 5 days: Medium (40%)

A broad area of low pressure located about 100 miles southeast of Bermuda is producing minimal shower activity. Development of this system is not expected during the next couple of days due to dry air and strong upper-level winds. However, environmental conditions could become more conducive for slow development when the system moves over the southwestern Atlantic Ocean during the early and middle part of next week.

* Formation chance through 48 hours: Low (0%)

* Formation chance through 5 days: Low (30%)

A non-tropical low pressure system is forecast to develop tonight or on Saturday over the central subtropical Atlantic Ocean midway between Bermuda and the Azores. Conditions are expected to be conducive for the low to acquire subtropical or tropical characteristics, and a subtropical or tropical cyclone is likely to form late this weekend or early next week while the low meanders over the central Atlantic Ocean.

* Formation chance through 48 hours: Low: (20%)

* Formation chance through 5 days: High: (70%)

For weather updates on Facebook: HERE

Follow me on Twitter: HERE

Follow me on Instagram HERE

Check out the Interactive Radar on Interactive Radar

Click here to sign up for email alerts from the First Warning Storm Team.