Monday, July22, 2019 L-36.com


Marine Weather and Tides
St. Petersburg, FL

Version 3.4
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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:47AMSunset 8:27PM Monday July 22, 2019 6:20 PM EDT (22:20 UTC) Moonrise 11:13PMMoonset 10:40AM Illumination 67% 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- 341 Pm Edt Mon Jul 22 2019
Tonight..Southeast winds around 5 knots. Bay and inland waters smooth. Isolated Thunderstorms in the evening.
Tuesday..South winds around 10 knots then becoming southwest in the afternoon. Bay and inland waters a light chop. Isolated Thunderstorms early in the morning, then scattered Thunderstorms in the late morning and afternoon.
Tuesday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the evening, then scattered Thunderstorms after midnight.
Wednesday..Southwest winds 5 to 10 knots increasing to around 15 knots in the afternoon. Bay and inland waters a moderate chop. Numerous showers and scattered Thunderstorms.
Wednesday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Widespread showers in the evening. Scattered Thunderstorms. Numerous showers after midnight.
Thursday..Southwest winds 5 to 10 knots then becoming west around 15 knots in the afternoon. Bay and inland waters a moderate chop. Widespread showers in the morning. Scattered Thunderstorms. Numerous showers in the afternoon.
Thursday night..Southwest winds around 10 knots diminishing to around 5 knots after midnight. Bay and inland waters a light chop. Scattered Thunderstorms.
Friday..Southwest winds around 5 knots then becoming northwest around 10 knots in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms.
Friday night..Northeast winds around 5 knots then becoming east after midnight. Bay and inland waters smooth. Isolated Thunderstorms.
Saturday..East winds around 5 knots then becoming northeast around 10 knots in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms. Numerous showers in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 341 Pm Edt Mon Jul 22 2019
Synopsis..High pressure will be displaced to our south and east tonight and Tuesday resulting in a prolonged period of west to southwest winds. A weak cold front will reach the northern gulf Tuesday night or Wednesday, bringing enhanced westerly winds and numerous showers and storms offshore the nature coast. Winds and rain will gradually subside Thursday with a return to easterly flow by the weeks end.


7 Day Forecast for Marine Location Near St. Petersburg, FL
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location: 27.77, -82.62     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 221900
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
300 pm edt Mon jul 22 2019

Discussion (tonight - Monday)
Showers and thunderstorms beginning to develop now as temperatures
climb into the lower 90s. Earlier activity near sarasota bradenton
has sent an outflow boundary northeastward through manatee and
part of hillsborough county. This should become a focus for
additional activity soon. Motion will be slowly northwestward,
except where outflow boundaries intervene.

The overall pattern will change significantly over the next few
days. A deepening eastern u.S. Upper-level trough will help to
push a weak frontal boundary all the way to the northern gulf
coast by late Tuesday and Tuesday night. The low-level ridge that
has resided north of the region will be displaced to our south and
east tonight and Tuesday. This will result in west southwesterly
flow for Tuesday, pushing higher rain chances well inland during
the afternoon. As the frontal boundary settles into the deep south
on Wednesday, enhanced westerly flow will develop with deep
tropical moisture in place between the boundary and the departing
ridge. We will likely see a large area of showers and storms over
the gulf Tuesday night moving onshore during the morning hours on
Wednesday. The best chances for rain will be from the tampa bay
area north. This pattern persists into Thursday, then the upper-
level trough begins to weaken and lift northeast. By Friday, a
large area of high pressure over the mid-atlantic states will
bridge the decaying frontal boundary and bring a return to
easterly flow. The Saturday to Monday time-frame looks like more
typical summer-time weather with most storms occurring during the
afternoon and evening hours.

Aviation
Early storms near srq have dissipated sending an outflow boundary
toward the northeast. This may help focus storm activity east of
the tpa, pie, and srq terminals through the day. Expect late
afternoon activity around lal, fmy, and rsw.

Marine
High pressure will be displaced to our south and east tonight and
Tuesday resulting in a prolonged period of west to southwest
winds. A weak cold front will reach the northern gulf Tuesday
night or Wednesday, bringing enhanced westerly winds and numerous
showers and storms offshore the nature coast. Winds and rain will
gradually subside Thursday with a return to easterly flow by the
weeks end.

Fire weather
No fire weather concerns. Locally heavy rainfall is possible
Wednesday and Thursday, especially near and north of the tampa
bay area.

Preliminary point temps pops
Tpa 77 88 78 87 20 40 50 70
fmy 75 90 77 90 20 40 20 50
gif 75 91 75 89 40 60 20 70
srq 75 89 78 89 20 40 40 60
bkv 72 89 75 87 20 50 50 70
spg 78 87 79 86 10 30 50 70

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Discussion aviation marine fire weather... Jillson
decision support... Hurt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAPF1 - 8726520 - St. Petersburg, FL 1 mi51 min WSW 8.9 G 12 86°F 87°F1015.4 hPa
CLBF1 4 mi87 min WSW 8 G 8.9 85°F 1014.3 hPa
GCTF1 5 mi51 min 86°F 1015 hPa72°F
OPTF1 - 8726607 - Old Port Tampa, FL 7 mi51 min NW 11 G 12 83°F 89°F1015.3 hPa
MTBF1 8 mi51 min W 8 G 9.9 83°F 1015.3 hPa74°F
PMAF1 10 mi51 min 84°F 89°F1014.9 hPa
MCYF1 14 mi51 min 91°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 15 mi51 min NNE 9.9 G 13
TSHF1 - 8726667 - East Bay Causeway, FL 15 mi51 min W 11 G 19
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi51 min W 4.1 G 7 86°F 88°F1015.4 hPa
42098 21 mi21 min 87°F2 ft
FHPF1 - Fred Howard Park, FL 28 mi87 min W 8 G 9.9 85°F 1015.7 hPa
42013 - C10 - Navy-2 44 mi51 min WSW 5.8 G 7.8 83°F 87°F1015.3 hPa
ARPF1 - APK - Aripeka, FL 46 mi87 min WNW 7 G 8.9 95°F 1015.4 hPa
VENF1 - Venice, FL 49 mi81 min WSW 8 G 8.9 84°F 86°F1014.8 hPa (-1.9)75°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL1 mi28 minW 810.00 miA Few Clouds87°F72°F61%1014 hPa
Macdill Air Force Base, Fl., FL8 mi25 minN 810.00 miFair86°F71°F62%1014.8 hPa
St. Petersburg/Clearwater Airport, FL10 mi28 minWNW 710.00 miPartly Cloudy84°F73°F70%1014.7 hPa
Tampa, Peter O Knight Airport, FL14 mi26 minN 01.00 miHeavy Rain79°F71°F79%1015.2 hPa
Tampa, Tampa International Airport, FL15 mi28 minWNW 510.00 miMostly Cloudy87°F72°F61%1014.9 hPa
Tampa, Vandenberg Airport, FL22 mi26 minN 010.00 miMostly Cloudy79°F75°F89%1014.9 hPa

Wind History from SPG (wind in knots)
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Last 24hrE10E10SE8S8S10S7SE7SE9SE5E7E6E8SE7E6SE8SE7SE6SE4SE4CalmSW8W9SW9
G17
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1 day agoSW4N6NE6NE4E8E4N7E9E7E8E7SE7E6SE7E6E6SE6SE4SW3SE5NW7
G17
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NE5
2 days agoNW9S40E13NE9NE5E5CalmE9NE9E8E8SE11E9E9SE9SE8SE7SE5SE3SE3E3E4SE3S20

Tide / Current Tables for St. Petersburg, Tampa Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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
Mon -- 01:59 AM EDT     0.00 knots Slack
Mon -- 04:48 AM EDT     0.92 knots Max Flood
Mon -- 06:47 AM EDT     Sunrise
Mon -- 08:18 AM EDT     -0.00 knots Slack
Mon -- 10:59 AM EDT     -0.66 knots Max Ebb
Mon -- 11:40 AM EDT     Moonset
Mon -- 01:48 PM EDT     0.00 knots Slack
Mon -- 04:36 PM EDT     0.83 knots Max Flood
Mon -- 07:24 PM EDT     -0.00 knots Slack
Mon -- 08:25 PM EDT     Sunset
Mon -- 10:52 PM EDT     -1.08 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-0.500.50.80.90.80.50.1-0.3-0.6-0.7-0.6-0.30.10.50.80.80.60.2-0.3-0.7-1-1.1

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Tampa Bay, FL (18,4,5,8)
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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.