Marine Weather and Tide Forecast for Harlem Heights, FL
![]() | Sunrise 6:36 AM Sunset 8:13 PM Moonrise 2:12 AM Moonset 2:33 PM |
GMZ836 Charlotte Harbor And Pine Island Sound- 220 Pm Edt Thu May 22 2025
Tonight - Northwest winds 5 to 10 knots, becoming north late this evening, then becoming southeast after midnight, becoming west late. Bay and inland waters light chop. A slight chance of showers and Thunderstorms early this evening. A slight chance of showers and Thunderstorms late.
Friday - North winds around 5 knots, becoming west in the afternoon. Bay and inland waters light chop. A slight chance of Thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon.
Friday night - Northwest winds 5 to 10 knots, becoming east after midnight. Bay and inland waters light chop. A chance of showers with a slight chance of Thunderstorms in the evening.
Saturday - Southeast winds around 5 knots, becoming southwest in the afternoon. Bay and inland waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of Thunderstorms in the afternoon.
Saturday night - Northwest winds 5 to 10 knots, becoming east after midnight. Bay and inland waters light chop. A slight chance of Thunderstorms. A chance of showers, mainly in the evening.
Sunday - Southeast winds around 5 knots, becoming south in the afternoon. Bay and inland waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of Thunderstorms in the afternoon.
Sunday night - Southwest winds 5 to 10 knots, becoming east after midnight. Bay and inland waters light chop. A slight chance of Thunderstorms. A chance of showers, mainly in the evening.
Monday - Southeast winds 5 to 10 knots, becoming south in the afternoon. Bay and inland waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of Thunderstorms in the afternoon.
Monday night - South winds 5 to 10 knots, becoming southeast after midnight. Bay and inland waters light chop. A chance of showers with a slight chance of Thunderstorms.
Tuesday - Southeast winds 5 to 10 knots, becoming south in the afternoon. Bay and inland waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of Thunderstorms in the afternoon.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 220 Pm Edt Thu May 22 2025
Synopsis - A few showers and Thunderstorms will continue offshore the nature coast this afternoon but should diminish tonight. Overall, no headlines expected for the next several days.
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7 Day Forecast for Marine Location Near Harlem Heights, FL

NEW! Add second zone forecast
Iona Shores Click for Map Thu -- 03:12 AM EDT Moonrise Thu -- 06:16 AM EDT 0.19 feet Low Tide Thu -- 06:37 AM EDT Sunrise Thu -- 12:14 PM EDT 0.83 feet High Tide Thu -- 03:32 PM EDT Moonset Thu -- 07:08 PM EDT 0.25 feet Low Tide Thu -- 08:11 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |   |
Iona Shores, Florida, Tide feet
12 am |
0.8 |
1 am |
0.7 |
2 am |
0.6 |
3 am |
0.5 |
4 am |
0.3 |
5 am |
0.2 |
6 am |
0.2 |
7 am |
0.2 |
8 am |
0.3 |
9 am |
0.5 |
10 am |
0.6 |
11 am |
0.8 |
12 pm |
0.8 |
1 pm |
0.8 |
2 pm |
0.7 |
3 pm |
0.6 |
4 pm |
0.5 |
5 pm |
0.4 |
6 pm |
0.3 |
7 pm |
0.3 |
8 pm |
0.3 |
9 pm |
0.4 |
10 pm |
0.5 |
11 pm |
0.6 |
Point Ybel (0.4 Mi. NW of) Click for Map Thu -- 02:01 AM EDT -0.81 knots Max Ebb Thu -- 03:12 AM EDT Moonrise Thu -- 04:30 AM EDT 0.00 knots Slack Thu -- 06:37 AM EDT Sunrise Thu -- 07:27 AM EDT 1.07 knots Max Flood Thu -- 11:29 AM EDT -0.00 knots Slack Thu -- 02:48 PM EDT -1.02 knots Max Ebb Thu -- 03:33 PM EDT Moonset Thu -- 05:37 PM EDT 0.00 knots Slack Thu -- 08:11 PM EDT Sunset Thu -- 08:19 PM EDT 0.80 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |   |
Point Ybel (0.4 Mi. NW of), Florida Current, knots
12 am |
-0.5 |
1 am |
-0.7 |
2 am |
-0.8 |
3 am |
-0.7 |
4 am |
-0.3 |
5 am |
0.3 |
6 am |
0.8 |
7 am |
1 |
8 am |
1 |
9 am |
0.8 |
10 am |
0.5 |
11 am |
0.2 |
12 pm |
-0.2 |
1 pm |
-0.6 |
2 pm |
-0.9 |
3 pm |
-1 |
4 pm |
-0.8 |
5 pm |
-0.3 |
6 pm |
0.2 |
7 pm |
0.6 |
8 pm |
0.8 |
9 pm |
0.8 |
10 pm |
0.6 |
11 pm |
0.4 |
Area Discussion for Tampa Bay, FL
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FXUS62 KTBW 221820 AFDTBW
Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 220 PM EDT Thu May 22 2025
DISCUSSION
A frontal boundary remains stalled across the peninsula this afternoon with showers and a few thunderstorms continuing in its vicinity. As we head through the rest of the day, this activity will continue to shift south and east, with the majority of the convection expected over inland and east coast locations through the evening. Additionally, some shortwave energy moving over the region has led to more development over the Gulf that will continue to approach and then move over the Nature Coast this evening.
For tomorrow, residual moisture and daytime heating will lead to more showers and thunderstorms, with highest chances again over the interior. High pressure then builds back in for the weekend, bringing a return to southeast boundary layer flow. While some relatively drier air will have moved in behind the boundary for the northern part of the forecast area, this flow will advect some moisture back northward, which will help keep scattered showers and thunderstorms in the forecast each afternoon and evening for mainly southern and interior locations. This overall pattern of daily rain chances continues into next week with warm and humid conditions persisting.
AVIATION
(18Z TAFS)
Mainly VFR conditions will continue through the rest of the day.
Scattered showers and a few thunderstorms are near KPGD this afternoon, so could have brief impacts there, otherwise chances are on the low side for other sites. Additional convection is expected tomorrow afternoon, mainly for southwest Florida sites and KLAL.
MARINE
A few showers and thunderstorms will continue offshore the Nature Coast this afternoon but should diminish tonight. Overall, no headlines expected for the next several days.
FIRE WEATHER
Relatively drier air over the Nature Coast will lead to relative humidity values near 35% for tomorrow afternoon, but winds will remain below Red Flag criteria. Moisture gradually increase for the next several days after tomorrow, with no further fire weather concerns. No significant fog is expected.
PRELIMINARY POINT TEMPS/POPS
TPA 77 94 77 94 / 10 20 10 20 FMY 75 94 74 94 / 20 50 10 40 GIF 74 94 73 95 / 20 40 10 40 SRQ 77 92 74 92 / 10 30 10 20 BKV 66 94 67 95 / 10 10 0 20 SPG 78 91 78 91 / 10 20 10 20
Sea Breeze Thunderstorm Regime For Friday: 4 Sea Breeze Thunderstorm Regime For Saturday: 1
For additional information on sea breeze regimes, go to: https:// www.weather.gov/tbw/ThunderstormClimatology
TBW WATCHES/WARNINGS/ADVISORIES
FL...None.
Gulf waters...None.
Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 220 PM EDT Thu May 22 2025
DISCUSSION
A frontal boundary remains stalled across the peninsula this afternoon with showers and a few thunderstorms continuing in its vicinity. As we head through the rest of the day, this activity will continue to shift south and east, with the majority of the convection expected over inland and east coast locations through the evening. Additionally, some shortwave energy moving over the region has led to more development over the Gulf that will continue to approach and then move over the Nature Coast this evening.
For tomorrow, residual moisture and daytime heating will lead to more showers and thunderstorms, with highest chances again over the interior. High pressure then builds back in for the weekend, bringing a return to southeast boundary layer flow. While some relatively drier air will have moved in behind the boundary for the northern part of the forecast area, this flow will advect some moisture back northward, which will help keep scattered showers and thunderstorms in the forecast each afternoon and evening for mainly southern and interior locations. This overall pattern of daily rain chances continues into next week with warm and humid conditions persisting.
AVIATION
(18Z TAFS)
Mainly VFR conditions will continue through the rest of the day.
Scattered showers and a few thunderstorms are near KPGD this afternoon, so could have brief impacts there, otherwise chances are on the low side for other sites. Additional convection is expected tomorrow afternoon, mainly for southwest Florida sites and KLAL.
MARINE
A few showers and thunderstorms will continue offshore the Nature Coast this afternoon but should diminish tonight. Overall, no headlines expected for the next several days.
FIRE WEATHER
Relatively drier air over the Nature Coast will lead to relative humidity values near 35% for tomorrow afternoon, but winds will remain below Red Flag criteria. Moisture gradually increase for the next several days after tomorrow, with no further fire weather concerns. No significant fog is expected.
PRELIMINARY POINT TEMPS/POPS
TPA 77 94 77 94 / 10 20 10 20 FMY 75 94 74 94 / 20 50 10 40 GIF 74 94 73 95 / 20 40 10 40 SRQ 77 92 74 92 / 10 30 10 20 BKV 66 94 67 95 / 10 10 0 20 SPG 78 91 78 91 / 10 20 10 20
Sea Breeze Thunderstorm Regime For Friday: 4 Sea Breeze Thunderstorm Regime For Saturday: 1
For additional information on sea breeze regimes, go to: https:// www.weather.gov/tbw/ThunderstormClimatology
TBW WATCHES/WARNINGS/ADVISORIES
FL...None.
Gulf waters...None.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
FMRF1 - 8725520 - Fort Myers, FL | 11 mi | 44 min | NNE 2.9G | 91°F | 29.99 |
Wind History for Fort Myers, FL
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Airport Reports
Link to 1 hour of 5 minute data for KFMY
Terminal Aerodrome Forecast (TAF) for KFMY
Wind History Graph: FMY
(wind in knots)GEOS Local Image of southeast
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