Marine Weather Net

Charlotte Harbor and Pine Island Sound Marine Forecast


TODAY

N
WINDS
15 - 20
KNOTS

TONIGHT

NE
WINDS
15 - 20
KNOTS

FRIDAY

N
WINDS
10 - 15
KNOTS

FRIDAY NIGHT

NE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ836 Forecast Issued: 302 AM EDT Thu Mar 19 2026

SMALL CRAFT EXERCISE CAUTION
Today...North Winds 15 To 20 Knots. Bay And Inland Waters Choppy.
Tonight...Northeast Winds 15 To 20 Knots. Bay And Inland Waters Choppy.
Friday...North Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay And Inland Waters A Moderate Chop.
Friday Night...Northeast Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots After Midnight. Bay And Inland Waters A Moderate Chop.
Saturday...Northeast Winds 5 To 10 Knots, Becoming Northwest In The Afternoon. Bay And Inland Waters Light Chop.
Saturday Night...Northwest Winds 10 To 15 Knots, Becoming North 5 To 10 Knots After Midnight. Bay And Inland Waters A Moderate Chop.
Sunday...Northeast Winds Around 5 Knots, Becoming West In The Afternoon. Bay And Inland Waters Light Chop.
Sunday Night...Northwest Winds 5 To 10 Knots, Becoming North After Midnight. Bay And Inland Waters Light Chop.
Monday...North Winds Around 5 Knots, Becoming West In The Afternoon. Bay And Inland Waters Light Chop.
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Area Forecast Discussion
National Weather Service Tampa Bay Ruskin FL
256am EDT Thu Mar 19 2026

Issued at 253am EDT Thu Mar 19 2026

Upper level troughing extends southward along the eastern seaboard, across Florida and into the central Gulf. This pattern will linger over the region for the next couple of days, then finally shifting eastward over the western Atlantic by Saturday morning. On the surface, a lingering stationary frontal boundary remains stretched across the Bahamas and Cuba. Farther northward over the mid-Atlantic states, a 1026 MB high pressure center ridges southwest through the southeast U.S., across northern Florida and into the northeastern Gulf. Interaction between this high pressure and the stationary boundary to the southeast is producing some gusty northeast winds over the region. As high pressure dominates, rain-free conditions and a warming trend will persist through the end of the week. This pattern will hold until Saturday morning when another 1020 MB high pressure center sets up over the central Gulf. This high pressure will dominate the weather through the weekend and into the first of next week with continued rain-free conditions and warming temperatures. On Monday, the ridge shifts slightly southward as a frontal boundary moves into the region from the north. This front will bring a slight chance of showers for Tuesday through Thursday next week.

Marine
Issued at 253am EDT Thu Mar 19 2026

Interaction between a stationary frontal boundary southeast of Florida and high pressure to the north will keep a tight pressure gradient over the region producing gusty northeast winds to Exercise Caution level through the end of the week. Improving conditions expected over the weekend and into the first of next week as high pressure sets up over the central Gulf waters. Rain-free conditions expected through the forecast period.

Fire Weather
Issued at 253am EDT Thu Mar 19 2026

A relatively dry air mass will remain over the region for the next several days, with relative humidity values dropping to critical levels for the Nature Coast Thursday and Friday afternoons and over parts of the interior over the weekend. However, no Red Flag issues are expected as sustained 20 foot winds remain less than 15 mph and the Significant Fire Potential is low. No significant fog is expected.

NOAA Tampa FL Office: Watches - Warnings - Advisories
FL...None. Gulf waters...None.