Sunday, November19, 2017 L-36.com


Marine Weather and Tides
Gulfport, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:54AMSunset 5:38PM Sunday November 19, 2017 4:40 PM EST (21:40 UTC) Moonrise 7:46AMMoonset 6:48PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 249 Pm Est Sun Nov 19 2017
.small craft advisory in effect from 8 pm est this evening through Monday morning...
Tonight..North winds around 20 knots. Bay and inland waters choppy.
Monday..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Monday night..East winds around 15 knots diminishing to 5 to 10 knots after midnight. Bay and inland waters a moderate chop. A slight chance of showers.
Tuesday..East winds around 10 knots then becoming south around 5 knots in the afternoon. Bay and inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
Tuesday night..North winds around 5 knots then becoming northeast after midnight. Bay and inland waters smooth. A chance of showers and a slight chance of Thunderstorms.
Wednesday..Northeast winds around 5 knots. Bay and inland waters smooth. A chance of showers and a slight chance of Thunderstorms.
Wednesday night..Northeast winds around 10 knots. Bay and inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
Thursday..East winds around 10 knots then becoming southwest in the afternoon. Bay and inland waters a light chop. Showers likely and a slight chance of Thunderstorms.
Thursday night..North winds around 10 knots. Bay and inland waters a light chop. A chance of showers.
Friday..North winds around 10 knots. Bay and inland waters a light chop. A slight chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 249 Pm Est Sun Nov 19 2017
Synopsis..A cold front pushes southeastward across the coastal waters through early tonight and stalls south of the florida keys Monday...as high pressure in texas tracks to the mid-atlantic coast. The high pressure moves offshore Tuesday and continues east...allowing the front to lift north from the keys. A low pressure area may form on the front toward the end of the week...introducing some uncertainty into later forecasts.

7 Day Forecast for Marine Location Near Gulfport, FL
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location: 27.74, -82.69     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 191945
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
245 pm est Sun nov 19 2017

Short term (rest of today - Monday)
Aloft - a massive ridge was over the western states... From west of
baja california to the western canadian prairies. A low above the
manitoba, canada coast had a trough that arced down across the
lower great lakes to the northern gulf of mexico. Surface - high
pressure centered in tx sprawled to the mid-mississippi valley while
a cold front stretched from northern me... Across atlantic coastal
waters... To north-central fl.

The initial upper low slides to james bay, canada with the northern
potion of the trough lifting into the canadian maritimes. However a
second upper low drops from the yukon territory, canada to the nd mn
border and helps maintain troughing over the gulf of mexico. The tx
high pressure tracks east-northeast... Reaching the mid-atlantic
coast late Mon afternoon. The cold front settles through south fl
tonight and mon... Stalling south of the florida keys late in the
day.

A compact band of showers southwest to northeast across tampa bay
with cloudiness trailing back to the front back across the nature
coast early this afternoon will proceed southeastward through the
afternoon... Losing some stream as it does... And exit the far south
around sunset. A few of the showers have been heavy but brief...

overall rainfall is expected to be on the lighter side.

Northwesterly 1000-700mb flow this afternoon becomes northerly over
night then northeast to east mon. This will bring in some drier
air... With pwat values of less than 1 inch spreading down to south
of lee county by sunrise mon... But values just over 1 inch creep
back to near charlotte harbor in the afternoon. This drier air will
keep skies clear to mostly from later tonight through Mon and along
with modest overnight wind speeds preclude any fog. Temperatures
will drop below normal for the lows in the north and central
locations... The south will be a bit warmer and just around normal.

The high temperatures Mon run near normal for the south and
central while the north stays just below.

The threat of a high rip current risk is still under consideration
but winds... While robust to strong... Turn fairly quickly to the
north then northeast... Reducing the threat. Beach conditions will
continue to be monitored but no beach hazard statement will issued.

Mid term long term (Monday night-Sunday)
The next mid upper level trough will be developing Monday night and
Tuesday over the eastern half of the CONUS and deepen southward into
the gulf of mexico Wednesday into Thursday. This trough will then
lift out to the northeast late in the week quickly followed by yet
another one developing over the eastern u.S. During the second half
of the weekend. At the surface, high pressure along the carolina
coast Monday evening will move well out into the atlantic ocean
Tuesday with the front that moved south of the region tonight
lifting back north as a warm front. This will lead to increasing
clouds and a chance of showers and possibly a few thunderstorms late
Monday night with better chances during Tuesday. During midweek the
global models continue to develop an area of low pressure in the
central gulf as the trough deepens which then drifts east northeast
across the southeast states florida peninsula late in the week. The
exact timing and location of this system varies in the models, but
it does look like clouds and a chance of showers and possibly a few
thunderstorms will continue for Wednesday into thanksgiving day, and
possibly Friday if the ECMWF is correct. High pressure will return
by Saturday bringing a return to fair dry weather, but the next cool
front is expected to be moving south into the region Sunday.

Aviation
19 18z. Band of shra with lower CIGS and gusty winds is at tpa pie
and will continue southeastward through the afternoon but losing
some steam as it does. What ever is left of the band will clear the
southern sites around 23z withVFR taking over for all terminals.

Gusty nw-n winds through the afternoon become N over night then
ne to ene mon.

Marine
Winds continue to crank up as the front moves southeastward...

caution headlines are in place this afternoon with a small craft
advisory starting tonight. This now includes all the waters except
charlotte harbor. Tampa bay is a bit problematic as only the mouth
and lower bay will reach 20 knots. High pressure builds in then
tracks to the eastern seaboard with winds diminishing Mon night and
tue. The front which had stalled south of the florida keys lifts
back across the state during midweek with a possible low forming
on the gulf portion. While this is not expected to result in
significantly increased winds rain chances do go up.

Fire weather
Drier air behind the front fills in tonight and Mon but then begins
to moisten Mon night as the front lifts back north over the
state... With a possible low forming the gulf portion of the front.

However no low rh concerns are anticipated.

Preliminary point temps pops
Tpa 53 76 64 75 0 0 20 70
fmy 61 79 65 80 0 10 20 50
gif 52 76 61 76 0 0 20 70
srq 55 78 63 76 0 0 30 60
bkv 45 75 58 75 0 0 20 70
spg 57 74 63 75 0 0 30 70

Tbw watches warnings advisories
Fl... None.

Gulf waters... Small craft advisory from 8 pm this evening to 7 am est
Monday for coastal waters from bonita beach to
englewood fl out 20 nm-coastal waters from englewood
to tarpon springs fl out 20 nm-coastal waters from
tarpon springs to suwannee river fl out 20 nm-tampa
bay waters-waters from bonita beach to englewood fl
out 20 to 60 nm-waters from englewood to tarpon
springs fl out 20 to 60 nm-waters from tarpon springs
to suwannee river fl out 20 to 60 nm.

Short term aviation marine fire weather... 09 rude
mid term long term decision support... 69 close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 0 mi107 min WNW 7 G 8.9 74°F 1011.8 hPa
SAPF1 - 8726520 - St. Petersburg, FL 4 mi41 min NW 7 G 12 69°F 72°F1013.1 hPa (-0.5)
MTBF1 7 mi41 min N 12 G 14 69°F 1012.8 hPa (-0.6)
PMAF1 10 mi41 min 70°F 73°F1012 hPa (-0.7)
OPTF1 - 8726607 - Old Port Tampa, FL 11 mi41 min NW 12 G 14 67°F 72°F1013 hPa (-0.6)
42098 16 mi41 min 72°F3 ft
MCYF1 18 mi41 min 73°F
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi41 min NNW 14 G 16 67°F 71°F1013.4 hPa (+0.0)
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 19 mi53 min NW 4.1 G 8
TSHF1 - 8726667 - East Bay Causeway, FL 19 mi47 min NNW 5.1 G 9.9
FHPF1 - Fred Howard Park, FL 29 mi107 min N 14 G 17 64°F 1013.7 hPa
42013 - C10 - Navy-2 41 mi71 min SW 3.9 G 7.8 75°F
VENF1 - Venice, FL 48 mi41 min WNW 13 G 14 74°F 74°F1012.8 hPa (-0.9)69°F
ARPF1 - APK - Aripeka, FL 48 mi107 min NW 4.1 G 7 67°F 1013.2 hPa

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL4 mi48 minN 1010.00 miOvercast69°F64°F84%1012.1 hPa
St. Petersburg/Clearwater Airport, FL12 mi48 minNNW 1210.00 miOvercast69°F63°F81%1013 hPa
Macdill Air Force Base, Fl., FL12 mi45 minWNW 610.00 miOvercast69°F68°F99%1013.2 hPa
Tampa, Peter O Knight Airport, FL18 mi46 minNNW 610.00 mi68°F68°F100%1012.9 hPa
Tampa, Tampa International Airport, FL18 mi48 minWNW 710.00 miOvercast69°F64°F84%1012.9 hPa

Wind History from SPG (wind in knots)
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Last 24hrW8W4W5W3W4W5W4W4W4W3W3W3CalmW3W5CalmSW6W9W9W10
G19
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1 day agoNE4N7N8N8N8N6N6NE3E8SE8SE8E6E5E5SE5E5SE4SE4SE3CalmSE4SE5NW5SW6
2 days agoN7N8N8N6N6N5N6NE10E12E11NE11NE12NE9NE12NE10NE12NE13NE12NE10NE6E4E3NE8Calm

Tide / Current Tables for Gulfport, Boca Ciega Bay, Florida
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Gulfport
Click for Map
Sun -- 06:55 AM EST     Sunrise
Sun -- 07:30 AM EST     -0.19 feet Low Tide
Sun -- 07:45 AM EST     Moonrise
Sun -- 02:01 PM EST     1.50 feet High Tide
Sun -- 05:37 PM EST     Sunset
Sun -- 06:19 PM EST     1.20 feet Low Tide
Sun -- 06:48 PM EST     Moonset
Sun -- 11:49 PM EST     2.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.11.81.30.90.40-0.2-0.20.10.40.91.21.41.51.51.41.31.21.21.41.722.3

Tide / Current Tables for Port Manatee, Tampa Bay, Florida Current
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Port Manatee
Click for Map
Sun -- 01:57 AM EST     -0.00 knots Slack
Sun -- 05:39 AM EST     -1.20 knots Max Ebb
Sun -- 06:54 AM EST     Sunrise
Sun -- 07:44 AM EST     Moonrise
Sun -- 09:25 AM EST     0.00 knots Slack
Sun -- 12:48 PM EST     1.00 knots Max Flood
Sun -- 04:40 PM EST     -0.00 knots Slack
Sun -- 05:36 PM EST     Sunset
Sun -- 06:16 PM EST     -0.22 knots Max Ebb
Sun -- 06:48 PM EST     Moonset
Sun -- 07:57 PM EST     0.00 knots Slack
Sun -- 11:21 PM EST     0.79 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.4-0-0.5-0.9-1.2-1.2-1-0.7-0.20.30.70.910.90.60.2-0.1-0.2-0.200.30.60.8

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 (16,3,4,5)
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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.