Tuesday, January21, 2020
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Marine Weather and Tides
Medulla, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:18AMSunset 6:00PM Tuesday January 21, 2020 12:34 PM EST (17:34 UTC) Moonrise 4:30AMMoonset 3:14PM Illumination 13% Phase: Waning Crescent; Moon at 26 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- 1006 Am Est Tue Jan 21 2020
.small craft exercise caution...
This afternoon..North winds 15 to 20 knots. Bay and inland waters choppy.
Tonight..North winds 15 to 20 knots. Bay and inland waters choppy.
Wednesday..North winds around 15 knots. Bay and inland waters a moderate chop.
Wednesday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 15 knots diminishing to around 10 knots in the afternoon. Bay and inland waters a light to moderate chop.
Thursday night..East winds around 10 knots. Bay and inland waters a light chop.
Friday..South winds around 10 knots. Bay and inland waters a light chop. A slight chance of showers.
Friday night..West winds 5 to 10 knots becoming northwest around 10 knots after midnight. Bay and inland waters a light chop. A slight chance of showers.
Saturday..Northwest winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 1006 Am Est Tue Jan 21 2020
Synopsis..High pressure in the upper midwest and low pressure in the atlantic will both slowly move east through mid to late week...with initially strong winds that gradually diminish and veer. A front pushes into the gulf of mexico Friday and across florida Saturday with some showers.


7 Day Forecast for Marine Location Near Medulla, FL
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location: 27.97, -82.03     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 211223 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 723 AM EST Tue Jan 21 2020

UPDATE. Clear and chilly across the region this morning with northerly winds continuing to usher in cold dry air. Pressure gradient will increase over the next 24 hours as high pressure slides across the eastern U.S. and an area of low pressure develops east of the Bahamas. This will increase the northerly flow making it rather breezy and thus not expecting a radiational freeze tonight, but an advection freeze in some parts of the area. At the present time much of the Nature Coast looks like it will see freezing temperatures tonight, but from about Pasco County southward there are indications that temperatures will stay just above freezing over inland areas where the Freeze Watch is in effect. Will need to evaluate whether to upgrade the Freeze Watch to a Freeze Warning once the 12Z model guidance arrives, otherwise the Wind Chill Advisory looks like a lock with the breezy northerly flow tonight into early Wednesday morning.

AVIATION. VFR conditions will prevail with northerly winds at 10 to 15 knots along with some higher gusts.

MARINE. High pressure moving across the eastern U.S. along with a developing low pressure just east of the Bahamas in the Atlantic Ocean will result in robust northerly winds across the eastern gulf waters. Small Craft Advisory conditions will continue into early Wednesday with slightly lower speeds across the bay and harbor waters. Winds and seas will subside during the second half of the week before the next cold front moves through Friday night and Saturday.

Prev Discussion. /issued 301 AM EST Tue Jan 21 2020/

.DRY AND VERY COLD AIR WILL CONTINUE TO SWEEP INTO THE AREA.

SHORT TERM (Today - Wednesday) . Aloft: A trough over the southern and central Appalachians shifts offshore tonight and over the Atlantic Wed as a ridge from the Rio Grande Valley to the Canadian prairies slides east . stretching from the Gulf of Mexico to the Saint Lawrence Valley by Wed night. Surface: Strong and sprawling high pressure along the NE/IA border works eastward to the Atlantic coast Wed.

The upper level trough and surface high pressure will maintain dry and cold northern flow into Wed. Freezing temperatures are expected across parts of the Nature Coast before dawn . with durations supporting a freeze warning in Levy County. Today will be on the chilly side with afternoon highs about 10 to 15 degrees below normal. This cold air continues tonight into Wed morning with some even lower temperatures . a freeze warning is in effect for the Nature Coast with a freeze watch from Pasco to Sarasota-Desoto away from the coast. In addition winds remain high enough overnight for a wind chill advisory for the entire area. Finally the northerly flow will take on a slight onshore component today and result in a high risk of rip currents. The highs for Wed will continue on the cool side but warm by 3 to 5 degrees.

LONG TERM (Wednesday night - Monday) . High pressure along the eastern seaboard at the start of the period will move east into the Atlantic during Thursday and Thursday night as the next storm system over the Mississippi valley moves east toward the mid Atlantic coast. As the high shifts east winds will veer to the east and southeast with moderating temperatures and a slow increase in moisture expected. As the aforementioned storm system moves eastward a trailing cold front will move east across the Gulf through Friday, and then south through the forecast area during Friday night and early Saturday bringing with it some low rain chances along and ahead of it. In the wake of the front cooler and drier conditions will return Saturday night through Monday as high pressure builds in over the area. Temperatures will moderate back to near normal Thursday through Saturday, before falling back to below normal during Sunday and Monday in the wake of the front.

FIRE WEATHER . Cold and dry air continues for the next couple of days . with the Nature Coast seeing RH below 35 percent for perhaps 2 to 4 hours. But low ERC values and light winds will preclude any Red Flag conditions. Moisture slowly recovers during the rest of the week.

Preliminary Point Temps/PoPs. TPA 56 34 59 49 / 0 0 0 0 FMY 61 37 64 51 / 0 0 0 0 GIF 57 34 59 49 / 0 0 0 0 SRQ 58 34 60 49 / 0 0 0 0 BKV 54 28 58 44 / 0 0 0 0 SPG 55 41 57 50 / 0 0 0 0

TBW WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through this evening for Coastal Charlotte- Coastal Hillsborough-Coastal Lee-Coastal Manatee-Coastal Sarasota-Pinellas.

Wind Chill Advisory from 1 AM to 9 AM EST Wednesday for Coastal Charlotte-Coastal Citrus-Coastal Hernando-Coastal Hillsborough-Coastal Lee-Coastal Levy-Coastal Manatee- Coastal Pasco-Coastal Sarasota-DeSoto-Hardee-Highlands- Inland Charlotte-Inland Citrus-Inland Hernando-Inland Hillsborough-Inland Lee-Inland Levy-Inland Manatee-Inland Pasco-Inland Sarasota-Pinellas-Polk-Sumter.

Freeze Warning until 9 AM EST this morning for Coastal Levy- Inland Levy.

Freeze Warning from 1 AM to 9 AM EST Wednesday for Coastal Citrus-Coastal Hernando-Coastal Levy-Inland Citrus-Inland Hernando-Inland Levy-Sumter.

Freeze Watch from late tonight through Wednesday morning for DeSoto-Hardee-Inland Hillsborough-Inland Manatee-Inland Pasco-Inland Sarasota-Polk.

Gulf waters . Small Craft Advisory until 10 AM EST Wednesday 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-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.



UPDATE/AVIATION/MARINE . Close PREV DISCUSSION . Rude UPPER AIR . Flannery


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi83 min N 11 G 17
MCYF1 21 mi47 min 68°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 22 mi137 min NNW 5.1 G 8
GCTF1 29 mi53 min 49°F 1024.9 hPa28°F
OPTF1 - 8726607 - Old Port Tampa, FL 29 mi53 min 49°F 65°F1025.1 hPa
SAPF1 - 8726520 - St. Petersburg, FL 35 mi53 min 51°F 67°F1024.9 hPa
PMAF1 36 mi47 min 49°F 55°F1024.8 hPa
MTBF1 37 mi53 min 50°F 1025.2 hPa34°F
CLBF1 38 mi101 min NNW 7 G 13 51°F 1024.8 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 43 mi53 min 48°F 62°F1025.9 hPa
FHPF1 - Fred Howard Park, FL 43 mi101 min N 14 G 16 48°F 1026.7 hPa

Wind History for East Bay Causeway, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lakeland Regional, FL1 mi45 minN 1610.00 miClear52°F28°F41%1024.4 hPa
Plant City, Plant City Municipal Airport, FL7 mi60 minNNW 12 G 1810.00 miFair52°F35°F54%1025.1 hPa
Bartow Municipal, FL13 mi1.8 hrsNNW 12 G 2010.00 miClear50°F35°F58%1024 hPa
Winter Havens Gilbert Airport, FL16 mi42 minN 16 G 2210.00 miFair54°F33°F45%1023.9 hPa
Tampa, Vandenberg Airport, FL17 mi40 minN 10 G 1910.00 miFair52°F32°F47%1025.1 hPa
Tampa, Peter O Knight Airport, FL23 mi40 minNW 10 G 1910.00 miFair54°F32°F44%1025.1 hPa

Link to 5 minute data for KLAL

Wind History from LAL (wind in knots)
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Last 24hrCalmN6NW8NW6N9N7N3N5N5N5N5NE6N8----------N9--N10N12N12
G18
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1 day agoSW10
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W8W8W4W4W4W4NW6NW6NW6NW5N14
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2 days agoE13
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SE6S3S3SE3S4CalmS4CalmS5S8S11SW9

Tide / Current Tables for Hillsborough Bay, Tampa Bay, Tampa Bay, Florida
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Hillsborough Bay
Click for Map
Tue -- 04:31 AM EST     Moonrise
Tue -- 06:50 AM EST     -1.02 feet Low Tide
Tue -- 07:21 AM EST     Sunrise
Tue -- 02:54 PM EST     1.38 feet High Tide
Tue -- 03:16 PM EST     Moonset
Tue -- 04:27 PM EST     1.72 feet Low Tide
Tue -- 06:00 PM EST     Sunset
Tue -- 10:50 PM EST     2.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.81.20.6-0.1-0.6-0.9-1-0.9-0.500.50.91.21.41.41.61.71.822.22.42.62.6

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
Tue -- 04:31 AM EST     Moonrise
Tue -- 04:42 AM EST     -1.42 knots Max Ebb
Tue -- 07:21 AM EST     Sunrise
Tue -- 08:03 AM EST     0.00 knots Slack
Tue -- 11:04 AM EST     1.16 knots Max Flood
Tue -- 03:13 PM EST     -0.00 knots Slack
Tue -- 03:16 PM EST     Moonset
Tue -- 04:49 PM EST     -0.19 knots Max Ebb
Tue -- 06:01 PM EST     Sunset
Tue -- 06:14 PM EST     0.00 knots Slack
Tue -- 09:11 PM EST     0.71 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.7-1-1.2-1.4-1.4-1.2-0.7-00.611.210.70.40.1-0.1-0.2-0.10.20.50.70.60.4

Weather Map
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wmap_A
GEOS Local Image of    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 (12,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current


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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 numerous 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.