JACKSONVILLE, Fla — THROUGH THURSDAY: The pleasant, autumn pattern will continue this week with lows in the 60s and afternoons only gradually warming with highs in the middle to upper 80s. The humidity will remain on the lower side with dew points in the lower 60s, so the heat index won't be a worry despite the sunshine.
FRIDAY THROUGH SUNDAY: A backdoor cold front will be moving across the First Coast by sunrise on Friday. This will bring us a few more clouds to end off the work week with the northeast breeze picking up and a few showers possible, especially offshore and along the coast. Don't expect a washout Friday through the weekend, but keep your First Coast News App handy to track any downpours rolling onshore.
TROPICS: There are no concerns to the First Coast for the next 5 days, but we will focus on the Caribbean in about 7 days.
Hurricane Sam is forecast to pass more than 900 miles to our east through the weekend. The big question is: How close does this major hurricane track near the island of Bermuda? Sam will send a swell our way and increase our rip current risk Thursday through Sunday. The surf doesn't look to be as clean as what was sent our way from Larry because we will have a breezy northeast wind versus a west wind.
It is noteworthy that Sam is the 2nd earliest formation of the 18th named storm in the Atlantic basin, moving ahead of the 2005 hurricane season, and only trailing last year. Also, Sam is the 7th hurricane of the 2021 Atlantic season to date. The average date for the 7th Atlantic hurricane formation is November 16th.
There are two other tropical waves across the central Atlantic with a high chance of development in the next 5 days as they head west. They may become our next tropical depressions or named storms. However, the overall flow should recurve them out to sea even earlier than Sam.
RIP CURRENTS: It's always a good idea to talk to the lifeguards and only go out where they can see you. The risk of rip currents always exists, especially around jetties and piers. Have fun, yet play it safe.