Sunday, April30, 2017 L-36.com


Marine Weather and Tides
Holmes Beach, FL

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:49AMSunset 8:05PM Sunday April 30, 2017 12:51 PM EDT (16:51 UTC) Moonrise 9:48AMMoonset 11:43PM Illumination 22% Phase: Waxing Crescent; Moon at 5 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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GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 908 Am Edt Sun Apr 30 2017
This afternoon..Southeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Tonight..Southeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A slight chance of Thunderstorms.
Monday..South winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Monday night..South winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms after midnight.
Tuesday..South winds around 10 knots then becoming west around 5 knots late in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..West winds around 5 knots then becoming northeast after midnight. Seas 2 feet. Bay and inland waters smooth. A slight chance of Thunderstorms in the evening.
Wednesday..East winds around 5 knots. Seas 2 feet. Bay and inland waters smooth. A slight chance of Thunderstorms.
Wednesday night..North winds around 10 knots then becoming southeast after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday..South winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A slight chance of Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 908 Am Edt Sun Apr 30 2017
Synopsis..High pressure across the waters from the atlantic will continue through tonight then begin to slide east Monday as a cold front moves into the gulf waters. This front reaches the east gulf Monday night then stalls across the state and becomes diffuse through midweek before lifting north. A stronger front may approach the area late in the week. Some robust winds will continue this morning then diminish but pick back up this evening...with exercise caution headlines in place. Showers and Thunderstorms will provide locally higher winds and seas.

7 Day Forecast for Marine Location Near Holmes Beach, FL
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location: 27.51, -82.71     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 301234
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
834 am edt Sun apr 30 2017

Update
Lots of clouds across the region this morning as an upper-
level short-wave trough moves by. Clouds will gradually thin
from west to east today, with sunshine returning to the
beaches around noon or so, then to the rest of the area this
afternoon.

Moisture has increased since yesterday, so we will likely
see more cumulus development during the afternoon hours.

This combined with slightly cooler low-level temperatures
will keep us a few degrees cooler than yesterday, although
still likely reaching the lower 90s.

We may see a band of sea breeze showers and thunderstorms
develop late this afternoon and early this evening from
about the tampa bay area north. These would occur primarily
near or west of i-75 and move northwestward toward the gulf.

Last nights surge has brought seas up to 4 feet just
offshore. Winds are forecast to remain rather gusty and turn
more southerly and a bit onshore right at the beaches
during the afternoon hours. The combination of gusty winds
and choppy seas will result in conditions favorable for the
generation of strong rip currents. Will be issuing a rip
current statement with the morning update for pinellas and
hillsborough counties south through lee county.

Aviation
Vfr expected next 24 hours. Gusty southeasterly winds may
briefly turn southerly as a sea breeze tries to advance
inland between 20z and 00z.

Marine
Seas are about a foot higher than forecast in the nearshore
waters, so will update to include these higher seas.

Otherwise expect rather robust southeasterly winds through
the early afternoon hours, then some relaxation of the winds
as a sea breeze develops. Winds will come right back at 15
to 20 knots again tonight. A weak frontal boundary will move
into the region Monday night but only serve to collapse the
pressure gradient and result in lighter winds and seas
through mid-week.

Preliminary point temps/pops
Tpa 92 74 87 74 / 10 30 10 40
fmy 91 72 88 73 / 0 0 30 20
gif 89 71 91 72 / 0 0 30 30
srq 88 73 84 73 / 0 20 10 30
bkv 93 69 88 70 / 20 40 10 50
spg 90 74 86 74 / 10 30 10 40

Tbw watches/warnings/advisories
Fl... High rip current risk through this evening for coastal
charlotte-coastal hillsborough-coastal lee-coastal
manatee-coastal sarasota-pinellas.

Gulf waters... None.

Update/aviation/marine... Jillson
upper air... Noah
decision support... Mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMAF1 12 mi51 min 85°F 80°F1018 hPa (-0.3)
MTBF1 12 mi51 min SSE 17 G 19 82°F 1018.7 hPa (-0.5)68°F
42098 13 mi51 min 77°F4 ft
CLBF1 16 mi117 min ESE 11 G 20 82°F 1017.6 hPa
SAPF1 - 8726520 - St. Petersburg, FL 18 mi51 min SE 7 G 13 86°F 79°F1018.6 hPa (-0.0)
OPTF1 - 8726607 - Old Port Tampa, FL 25 mi51 min SE 8 G 13 83°F 80°F1019.3 hPa (-0.0)
42013 - C10 - Navy-2 26 mi81 min SE 16 G 19 76°F
MCYF1 32 mi51 min 82°F
TSHF1 - 8726667 - East Bay Causeway, FL 33 mi57 min ESE 8 G 16
VENF1 - Venice, FL 33 mi51 min SSE 18 G 20 83°F 80°F1018 hPa (-0.4)67°F
CWBF1 - 8726724 - Clearwater Beach, FL 33 mi51 min ESE 14 G 19 82°F 79°F1019.2 hPa (+0.9)
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 33 mi117 min NNE 6 G 12
FHPF1 - Fred Howard Park, FL 45 mi117 min SSE 22 G 28 79°F 1019.1 hPa

Wind History for C-Cut, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL11 mi58 minSE 15 G 2910.00 miMostly Cloudy89°F64°F45%1017.8 hPa
St. Petersburg Whitted Airport, FL18 mi58 minSSE 1410.00 miFair82°F70°F67%1018.3 hPa

Wind History from SRQ (wind in knots)
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Last 24hrSE13
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SW13SW13SW11S11S5E13SE14SE14SE13
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1 day agoSW9SW12SW14SW14SW13SW10S6S7S4E4SE10SE13SE11E8E9E8E8E10SE11E11SE16
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2 days agoSW13SW14SW13SW15SW11SW11SW10SW7S5SW5SW5S4E3CalmE3E3E6E4E6SE6SE7SE10SE10SE7

Tide / Current Tables for Anna Maria Key, Bradenton Beach, Tampa Bay, Florida
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Anna Maria Key
Click for Map
Sun -- 04:40 AM EDT     1.38 feet High Tide
Sun -- 06:52 AM EDT     Sunrise
Sun -- 07:36 AM EDT     1.27 feet Low Tide
Sun -- 10:48 AM EDT     Moonrise
Sun -- 02:03 PM EDT     2.57 feet High Tide
Sun -- 08:04 PM EDT     Sunset
Sun -- 10:27 PM EDT     -0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.611.21.41.41.31.31.31.41.61.92.32.52.62.52.21.81.30.80.3-0.1-0.3-0.3

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Sun -- 12:45 AM EDT     0.00 knots Slack
Sun -- 04:09 AM EDT     1.57 knots Max Flood
Sun -- 06:52 AM EDT     Sunrise
Sun -- 09:18 AM EDT     0.01 knots Min Flood
Sun -- 10:48 AM EDT     Moonrise
Sun -- 02:29 PM EDT     1.13 knots Max Flood
Sun -- 05:22 PM EDT     -0.00 knots Slack
Sun -- 08:04 PM EDT     Sunset
Sun -- 09:16 PM EDT     -2.11 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.60.20.91.31.61.51.10.60.200.10.30.60.91.11.10.80.3-0.5-1.2-1.8-2.1-2-1.7

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (12,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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weather_mapweather_map weather_map

Gulf Stream Current


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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.