Thursday, March4, 2021
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Marine Weather and Tides
Palm Harbor, FL

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:50AMSunset 6:34PM Thursday March 4, 2021 7:41 PM EST (00:41 UTC) Moonrise 12:00AMMoonset 10:37AM Illumination 62% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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GMZ830 Tampa Bay Waters- 203 Pm Est Thu Mar 4 2021
Tonight..Northeast winds around 10 knots. Bay and inland waters a light chop.
Friday..Northeast winds around 10 knots. Bay and inland waters a light chop.
Friday night..Northeast winds around 10 knots then becoming east in the late evening and overnight. Bay and inland waters a light chop. A slight chance of showers after midnight.
Saturday..Northeast winds around 15 knots. Bay and inland waters a moderate chop. Showers.
Saturday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop. A chance of showers in the evening.
Sunday..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Sunday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Monday..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Monday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Tuesday..East winds around 15 knots. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 203 Pm Est Thu Mar 4 2021
Synopsis.. Mostly northerly winds through the overnight hours with winds at or below 15 knots. Winds shift out of the east during the first half of the day before turning onshore due to the development of an afternoon sea breeze. An area of low pressure will approach the eastern gulf waters on Saturday bringing high rain chances for much of the day. As high pressure builds back in early next week, breezy northeast winds will result in cautionary or or advisory level...


7 Day Forecast for Marine Location Near Palm Harbor, FL
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location: 28.1, -82.85     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 050003 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 703 PM EST Thu Mar 4 2021

UPDATE. Upper trough now in the W Atlantic as water vapor imagery showing NW flow aloft and very dry air over the E Gulf and FL Peninsula. Weak high pressure at the surface over the region with light winds, low dew points and clear skies for radiational cooling tonight with temps at or slightly below seasonal normals. No changes needed to ongoing forecast package.

AVIATION. VFR conditions rest of this evening, tonight and into Fri with mostly clear skies and light NE winds.

Prev Discussion. /issued 136 PM EST Thu Mar 4 2021/

.LOW RELATIVE HUMIDITY TOMORROW. .CLOUDY AND RAINY SATURDAY EXPECTED.

DISCUSSION . Yesterday's cold front has advected some relatively cooler and drier air into the region as we continue to experience generally north wind. It'll be a great feeling next 24 hours with overnight lows in the mid 40s north to low/mid 50s south of Pasco county. Tomorrow will be warm with highs ranging from the mid 70s to around 80. The difference is much lower dewpoints. While this will be a consideration for our fire partners due to min RH values in the 30% range, the lower humidity will allow it to be more tolerable outside.

Models remain in good agreement with developing an area of surface low pressure in the Gulf as we head into the weekend, in response to a digging trough through the Mississippi Valley. As this low traverses east across a frontal boundary, isentropic ascent through the low/mid levels will allow for adiabatic cooling/moistening over the Peninsula. The result? Lots of clouds and rain. Now, a caveat to a rain event like this is where exactly the heaviest band of stratiform rainfall occurs on Sat. At this time, it seems the greatest chances will be along & north of the I-4 corridor. But solid rain chances will be in place across all of the CWA because diurnal surface heating south of the boundary will still allow some pop up convection during the day - outside the stratiform rain. In the southern portion, instability won't be nonexistent - but it will still be very low. Therefore, will only mention a slight chance of thunder in the far southern portions of the CWA .

High temperatures on Saturday will also be affected by where the greatest cloud cover and rainfall occurs. Nevertheless, am going with a cooler model blend which gives us low to mid 70s across Southwest FL, with locations north of I-4 topping out in the low to mid 60s. Would not be surprised to see decent variability between the forecast and observed highs, however .

Behind this disturbance, high pressure builds back into the region. A tight pressure gradient will keep breezy conditions around through the early part of next week with mostly rain free days. Boating looks to somewhat unfavorable as offshore winds look to hover between 15-20 knots from Sunday through Wednesday - resulting in rough seas. The persistent northeast wind fetch down Tampa Bay will possibly lower water levels a foot or more below MLLW in the northern part of the bay during low tide on Monday. Keep this in mind if boating in shallow water . Temps will also gradually warm back up with the possibility of low to mid 80s by the middle of next week.

MARINE . Mainly northerly winds through the overnight hours with winds AOB 15 knots. Winds shift out of the east during the first half of the day before turning onshore due to the development of an afternoon sea breeze. An area of low pressure will approach the Eastern Gulf waters on Saturday bringing high rain chances for much of the day. As high pressure builds back in early next week, breezy northeast winds will result in cautionary or or advisory level .

FIRE WEATHER . RH values will fall near or below critical values tomorrow afternoon. High mixing heights with elevated northeast transport winds will result in very good dispersions. However, east to northeast 20ft winds winds below 10 mph will preclude the necessity for any Red Flag Warnings. A high chance for wetting rain returns Saturday.

Preliminary Point Temps/PoPs. TPA 54 79 60 67 / 0 0 20 80 FMY 55 82 62 73 / 0 0 10 70 GIF 52 79 59 68 / 0 0 10 90 SRQ 54 79 61 69 / 0 0 10 80 BKV 44 79 53 65 / 0 0 20 80 SPG 59 76 62 67 / 0 0 10 80

TBW WATCHES/WARNINGS/ADVISORIES. FL . None. Gulf waters . None.

RD


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FHPF1 - Fred Howard Park, FL 4 mi108 min NW 13 G 14 66°F 1016.4 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 8 mi54 min NW 14 G 16 65°F 74°F1015.9 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 23 mi54 min NW 14 G 17 67°F 74°F1015.7 hPa
ARPF1 - APK - Aripeka, FL 25 mi108 min NW 7 G 12 67°F 1015.3 hPa
SKCF1 25 mi60 min NW 9.9 G 14
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 25 mi96 min NNW 5.1 G 8.9
TSHF1 - 8726667 - East Bay Causeway, FL 25 mi66 min NW 7 G 12
EBEF1 26 mi60 min 67°F 75°F1015.1 hPa
SAPF1 - 8726520 - St. Petersburg, FL 26 mi54 min NNW 4.1 G 7 66°F 73°F1015.9 hPa
CLBF1 27 mi108 min NW 5.1 G 8.9 69°F 1014.6 hPa
GCTF1 29 mi54 min 67°F 49°F
MTBF1 33 mi54 min NNW 14 G 16 66°F 1015.4 hPa48°F
PMAF1 35 mi54 min 66°F 73°F1015.6 hPa
42098 36 mi46 min 70°F3 ft

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL16 mi49 minNW 910.00 miFair64°F48°F56%1015.6 hPa
Tampa, Tampa International Airport, FL19 mi49 minNW 910.00 miFair65°F45°F49%1015.6 hPa
Macdill Air Force Base, Fl., FL24 mi46 minNW 810.00 miFair64°F48°F55%1014.8 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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Last 24hrNW12NW7N7CalmSW3NE7N6N6N8N8N9N10N10N8N7N8N10N9NW12NW13NW12NW14NW14NW9
1 day agoSW10SW11SW10SW9SW12SW10S13S12SW9SW14
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2 days agoS8SW6SW4SW4SW4W7W5W3CalmCalmS3S4CalmS4S8S10SW11SW11SW12S12SW11SW11S9SW10

Tide / Current Tables for Anclote Key, southern end, Florida
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Anclote Key
Click for Map
Thu -- 03:22 AM EST     2.23 feet High Tide
Thu -- 06:52 AM EST     Sunrise
Thu -- 08:29 AM EST     0.65 feet Low Tide
Thu -- 10:36 AM EST     Moonset
Thu -- 02:26 PM EST     2.93 feet High Tide
Thu -- 06:33 PM EST     Sunset
Thu -- 10:07 PM EST     -0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.522.22.21.91.410.70.711.52.12.62.92.92.62.11.50.90.3-0.1-0.2-0.1

Tide / Current Tables for Old Tampa Bay Entrance (Port Tampa), Florida Current
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Old Tampa Bay Entrance (Port Tampa)
Click for Map
Thu -- 01:37 AM EST     0.00 knots Slack
Thu -- 04:25 AM EST     0.98 knots Max Flood
Thu -- 06:51 AM EST     Sunrise
Thu -- 07:58 AM EST     -0.00 knots Slack
Thu -- 10:08 AM EST     -0.48 knots Max Ebb
Thu -- 10:35 AM EST     Moonset
Thu -- 12:23 PM EST     0.00 knots Slack
Thu -- 03:35 PM EST     1.04 knots Max Flood
Thu -- 06:20 PM EST     -0.00 knots Slack
Thu -- 06:32 PM EST     Sunset
Thu -- 10:13 PM EST     -1.34 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-0.30.20.710.90.70.4-0-0.3-0.5-0.4-0.10.20.7110.70.2-0.4-0.8-1.2-1.3-1.3

Weather Map
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GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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