Wednesday, April26, 2017 L-36.com


Marine Weather and Tides
Tyndall AFB, 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 6:01AMSunset 7:18PM Wednesday April 26, 2017 6:52 AM CDT (11:52 UTC) Moonrise 6:24AMMoonset 7:42PM Illumination 0% Phase: New Moon; Moon at 0 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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GMZ750 Coastal Waters From Apalachicola To Destin Fl Out 20 Nm- Waters From Apalachicola To Destin Fl From 20 To 60 Nm- 346 Am Edt Wed Apr 26 2017
.small craft advisory in effect from this evening through Thursday morning...
Today..South winds 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Protected waters a moderate chop.
Tonight..South winds 20 knots. Seas 2 to 4 feet building to 4 to 6 feet with occasional seas up to 8 feet. Dominant period 5 seconds. Protected waters choppy.
Thursday..South winds 15 to 20 knots. Seas 5 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Protected waters choppy. Slight chance of showers and Thunderstorms in the morning.
Thursday night..South winds 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Protected waters a moderate chop.
Friday and Friday night..Southeast winds 15 knots. Seas 3 to 4 feet. Dominant period 6 seconds. Protected waters a moderate chop.
Saturday..Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Protected waters a moderate chop. Slight chance of showers and Thunderstorms.
Saturday night..Southeast winds 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Protected waters choppy. Slight chance of showers and Thunderstorms.
Sunday..South winds 20 to 25 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Protected waters choppy. Slight chance of showers and Thunderstorms.
GMZ700 Synopsis For The Suwannee River To Destin Out To 60 Nm 346 Am Edt Wed Apr 26 2017
Synopsis..A frontal system approaching the area will drive southerly winds to increase through the day, up to around 20 knots over our western waters tonight. Wave heights will build to 4 to 6 feet overnight as well. Winds speeds and seas will gradually lower through Thursday night as the front pulls northeast. The front will not cross the coastal waters, so winds will remain southerly through the weekend. Advisory conditions appear likely Saturday night and Sunday as another front approaches the area.

7 Day Forecast for Marine Location Near Tyndall AFB, FL
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location: 29.99, -85.7     debug


Area Discussion for -
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Fxus62 ktae 261046
afdtae
area forecast discussion
national weather service tallahassee fl
646 am edt Wed apr 26 2017

Aviation [through 12z Thursday]
Patchy MVFR visibilities are still possible for an hour or so at
tlh and dhn this morning, while ifr visibilities will continue
briefly at vld. Otherwise,VFR is expected through at least the
evening.

Prev discussion [342 am edt]
Near term [through today]
Deep layer ridging will prevail this afternoon, with highs climbing
into the middle 80s and no rain.

Short term [tonight through Friday]
An upper level shortwave trough in the southern plains will swing
into the ohio valley Thursday, pushing a cold front into the
southeast. A linear MCS ahead of the front will be moving northeast
as it approaches the area, and most of the convection is expected to
be north of us. Still, our northern tier of counties will probably
see some thunderstorms from this system. Any storms that do manage
to make it into the forecast area will have the potential to be
severe since they will be in a favorable environment. Model mlcape
is around 2000-2500 j/kg Thursday afternoon with 0-6 km shear of 30-
40 kts and 0-1 km shear of 15 kts.

The front itself won't make it this far south. Winds will remain
from the south through Friday and maximum temperatures will be in
the mid to upper 80s. Morning lows will be in the 60s, low 70s along
the immediate coastline.

Long term [Friday night through Wednesday]
Low level ridging will persist to our east through the weekend,
keeping low level winds southerly. With afternoon highs inland in
the upper 80s and low 90s, there will be a large enough temperature
gradient between the land and water to develop a sea-breeze frontal
boundary both Saturday and Sunday. Isolated sea-breeze thunderstorms
will drive up pops to around 20%. Early next week, an upper level
+pv anomaly will lift from the mid-mississippi valley into the great
lakes, pushing a cold front across the eastern conus. Timing remains
uncertain with this next system, but at the moment it appears the
area will most likely see thunderstorms on Monday. Behind the front,
temperatures will drop- highs will return to the low 80s and lows
will fall to the mid 50s.

Marine
A frontal system approaching the area will drive southerly winds
to increase through the day, up to around 20 knots over our
western waters tonight. Wave heights will build to 4 to 6 feet
overnight as well. Winds speeds and seas will gradually lower
through Thursday night as the front pulls northeast. The front
will not cross the coastal waters, so winds will remain southerly
through the weekend. Advisory conditions appear likely Saturday
night and Sunday as another front approaches the area.

Fire weather
Red flag conditions are not expected over the next several days,
though dispersion indices will gradually increase beginning tomorrow.

Hydrology
Showers and thunderstorms Thursday are expected to produce less than
a half inch of precipitation. Timing remains uncertain for our next
cold front early next week, which makes it difficult to estimate
rainfall amounts at this time. No flooding is forecast for the next
several days.

Preliminary point temps/pops
Tallahassee 83 62 85 67 88 / 0 10 10 10 10
panama city 77 70 80 73 81 / 0 20 20 10 10
dothan 84 66 83 69 88 / 0 20 40 10 10
albany 85 64 85 68 90 / 0 10 40 10 10
valdosta 84 60 87 65 90 / 0 0 10 0 10
cross city 82 61 86 65 89 / 0 0 10 0 10
apalachicola 77 70 81 69 82 / 0 10 10 10 10

Tae watches/warnings/advisories
Fl... High rip current risk through late tonight for coastal bay-south
walton.

Ga... None.

Al... None.

Gm... Small craft advisory from 8 pm this evening to 8 am edt Thursday
for coastal waters from apalachicola to destin fl out 20 nm-
waters from apalachicola to destin fl from 20 to 60 nm.

Near term... Harrigan
short term... Moore
long term... Moore
aviation... Harrigan
marine... Moore
fire weather... Harrigan
hydrology... Moore


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PACF1 - 8729108 - Panama City, FL 11 mi53 min S 7 G 8 70°F 76°F1009.3 hPa (+0.5)
PCBF1 18 mi53 min S 12 G 15 72°F 74°F1009.1 hPa (+0.3)
APCF1 - 8728690 - Apalachicola, FL 42 mi53 min SW 7 G 8.9 71°F 75°F1009.2 hPa (+0.3)
APXF1 - Apalachicola Reserve, FL 45 mi68 min N 1.9 60°F 60°F

Wind History for Panama City, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tyndall Air Force Base, FL8 mi57 minSSE 310.00 miPartly Cloudy64°F59°F85%1009.4 hPa

Wind History from PAM (wind in knots)
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Last 24hrCalmN3E4W4W8SW5SW8SW8W11W7W9SW10SW6W6SW6W5SW5W4SW4SW6SW5SW6S3S3
1 day agoN5N9N8NW9NW11NW11NW17N10
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N6NW3CalmCalmCalmCalmNW3NW3NW3NW6NW5NW3N3Calm
2 days agoSW11S9SW10W13SW11S9S12
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SW10W12W12W11W6NW9N7N4N4N10NW11N11NW6NW8NW10N6

Tide / Current Tables for Channel entrance, St. Andrew Bay, Florida
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Channel entrance
Click for Map
Wed -- 06:04 AM CDT     Sunrise
Wed -- 06:24 AM CDT     Moonrise
Wed -- 07:18 AM CDT     New Moon
Wed -- 09:27 AM CDT     1.28 feet High Tide
Wed -- 06:47 PM CDT     -0.08 feet Low Tide
Wed -- 07:17 PM CDT     Sunset
Wed -- 07:41 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.70.70.80.90.911.11.21.31.31.21.10.90.60.40.20-0.1-0.1-000.20.3

Tide / Current Tables for Panama City, St. Andrew Bay, Florida
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Panama City
Click for Map
Wed -- 06:03 AM CDT     Sunrise
Wed -- 06:23 AM CDT     Moonrise
Wed -- 07:18 AM CDT     New Moon
Wed -- 10:33 AM CDT     1.17 feet High Tide
Wed -- 07:17 PM CDT     Sunset
Wed -- 07:41 PM CDT     Moonset
Wed -- 08:48 PM CDT     -0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.50.50.60.70.80.9111.11.21.21.110.90.70.50.30.10-0.1-0.1-00

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 (7,2,3,4)
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Ground Weather Radar Station Northwest Florida
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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.