Friday, March24, 2017 L-36.com


Marine Weather and Tides
Montgomery, GA

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 7:19AMSunset 7:39PM Friday March 24, 2017 3:59 AM EDT (07:59 UTC) Moonrise 4:07AMMoonset 3:18PM Illumination 11% 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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AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm...including Grays Reef National Marine Sanctuary- 114 Am Edt Fri Mar 24 2017
.small craft advisory in effect until 4 am edt early this morning...
Rest of tonight..E winds 10 to 15 kt with gusts to 25 kts. Seas 4 to 6 ft.
Fri..E winds 10 to 15 kt. Seas 3 to 4 ft.
Fri night..E winds 10 kt. Seas 3 to 4 ft.
Sat..SE winds 10 kt. Seas 3 to 4 ft.
Sat night..SE winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers after midnight.
Sun..S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers.
Sun night..S winds 5 to 10 kt. Seas 3 to 4 ft.
Mon..S winds 5 to 10 kt. Seas 3 to 4 ft.
Mon night..S winds 10 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.
Tue..S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.
Tue night..S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms. Mariners are reminded that winds and seas can be higher in and near tstms.
AMZ300 114 Am Edt Fri Mar 24 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will build in from the north tonight before shifting over the atlantic Friday into the weekend. The high will weaken early next week...then a cold front could possibly affect the area around mid week.

7 Day Forecast for Marine Location Near Montgomery, GA
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location: 31.84, -81.15     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 240749
afdchs
area forecast discussion
national weather service charleston sc
349 am edt Fri mar 24 2017

Synopsis
The high will weaken early next week with a weak cold front
stalling over the area mid week, then likely shifting back
northward as a warm front late in the week.

Near term /through tonight/
Today into tonight, the forecast area will remain under the axis of
a mid level ridge as a strong low pressure system tracks east across
the southern great plains. At the sfc, the center of high pressure
is forecast to slide over bermuda. Sfc winds should remain from the
ne through the early daylight hours, then veer from the SE by mid
afternoon. Afternoon high temperatures will likely range from the
mid to upper 70s as temps over the waters favor the low to mid 60s.

Given the forecast wind shift and decent land/water temperature
difference, it appears very favorable from a sea breeze to develop
during the early afternoon and drive west. Accounting for the sea
breeze, I will populate the high temps with bias corrected
temperature guidance, indicating a tight temperature gradient along
the coast. Hourly temperatures will feature cooling mid to late
afternoon temps in the wake of the sea breeze. A few fair weather cu
may develop along and ahead of the boundary, but capped by a
significant inversion around h8. High clouds well ahead of a cold
front will increase across eastern ga and sc tonight. SE winds
should weaken to 5 kts by the late night hours. Min temps should
favor the low 50s inland to the upper 50s near the beaches.

Short term /Saturday through Monday/
Atlantic high pressure will persist through the period, although
will generally weaken with time over the local area. Some shortwave
energy will shift through on Sunday on the southeast periphery of
deep low pressure over the midwest with additional energy
approaching Monday ahead of a secondary upper trough. This pattern
will lead to warmer than normal temperatures, likely hitting the
lower 80s inland Sunday/Monday. Some showers and thunderstorms are
expected, mainly Sunday/Monday when instability will be a bit
greater. No significant rainfall and/or severe weather anticipated
at this time however.

Long term /Monday night through Thursday/
A weakening cold front looks to approach the area mid week before
stalling and eventually shifting back northward as a warm front late
in the period. Some showers and thunderstorms are expected, mainly
mon night into Tuesday and again Friday as a shortwave energy moves
through the area. No significant rainfall and/or severe weather
anticipated at this time however.

Aviation /08z Friday through Tuesday/
Vfr. The center of a 1035+mb sfc high will remain off the
delmarva coast, ridging sough across the carolinas and georgia
this morning. By early to mid afternoon, the center of the high
will shift off the carolina coast. Winds will remain steady from
the NE through early this morning, veering from the SE by late
morning. High temperatures over land in the low to mid 70s and
se flow around 10 kts should bring a sea breeze inland by mid
afternoon. I will indicate sct040 along and ahead of the sea
breeze this afternoon. Winds should settle to around 5 kts this
evening.

Extended aviation outlook: low risk of restrictions, mainly
early next week due to mainly early morning low clouds/fog and
afternoon showers/tstms.

Marine
At the sfc, the center of high pressure is forecast to slide over
bermuda. Sfc winds should remain from the NE through the early
daylight hours, then veer from the SE by mid afternoon. Near shore
zones will see decreasing wave heights through today, with 2-3 feet
common late this afternoon. Seas across amz374 will begin the day
between 5 to 7 feet, decreasing to around 5 feet this afternoon. Sca
will remain for amz374 through 6 pm today.

Saturday through Wednesday: no significant concerns with atlantic
high pressure generally in control until a weakening cold front
moves into the area Wednesday. Seas look to be near 6 feet near the
gulf stream through Tuesday which could necessitate an advisory
there. Otherwise winds should mainly be 20 knots or less.

Chs watches/warnings/advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 6 pm edt this evening for
amz374.

Near term... Ned
short term... Rjb
long term... Rjb
aviation... Ned
marine... Ned/rjb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 19 mi41 min NE 8 G 9.9 58°F 60°F1030.3 hPa
SAXG1 - Sapelo Island Reserve, GA 30 mi59 min NNE 5.1 57°F 1030 hPa (+0.0)56°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 34 mi69 min E 12 G 14 64°F 61°F6 ft1029.4 hPa (-0.3)55°F

Wind History for Fort Pulaski, GA
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NE23
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SW7
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NW24
G31
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA13 mi61 minN 010.00 miFair52°F50°F94%1029.8 hPa
Savannah, Savannah International Airport, GA21 mi66 minNE 610.00 miFair50°F43°F77%1030.8 hPa
Ft. Stewart, GA22 mi61 minNE 410.00 miFair50°F46°F88%1029.7 hPa

Wind History from SVN (wind in knots)
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Last 24hrNE10E7
G15
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NE7E9E10E12NE9NE7NE9E9E7E8E6E6E7NE5NE4NE5CalmCalm
1 day agoW4S6SW5W4NW4W6NW9NW9N8N8
G16
NE9NE10E11E12E13E11
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E10E10E7NE7E7NE6E8
2 days agoS3S4CalmSW4SW6SW5SW9W8W8W6W14
G20
SW13W14
G18
W9
G16
W13W10SW6SW6S5SW6SW6NW15
G34
W5SW6

Tide / Current Tables for Florida Passage, Ogeechee River, Georgia
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Florida Passage
Click for Map
Fri -- 12:27 AM EDT     0.60 feet Low Tide
Fri -- 05:07 AM EDT     Moonrise
Fri -- 06:31 AM EDT     7.12 feet High Tide
Fri -- 07:22 AM EDT     Sunrise
Fri -- 01:08 PM EDT     0.35 feet Low Tide
Fri -- 04:18 PM EDT     Moonset
Fri -- 06:48 PM EDT     7.01 feet High Tide
Fri -- 07:39 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.71.73.34.96.3776.45.33.82.310.40.82.145.66.776.55.43.92.4

Tide / Current Tables for Savannah River Entrance, Georgia Current
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Savannah River Entrance
Click for Map
Fri -- 12:36 AM EDT     0.00 knots Slack
Fri -- 03:18 AM EDT     1.98 knots Max Flood
Fri -- 05:06 AM EDT     Moonrise
Fri -- 07:04 AM EDT     -0.00 knots Slack
Fri -- 07:21 AM EDT     Sunrise
Fri -- 10:21 AM EDT     -1.92 knots Max Ebb
Fri -- 01:18 PM EDT     0.00 knots Slack
Fri -- 03:47 PM EDT     2.00 knots Max Flood
Fri -- 04:16 PM EDT     Moonset
Fri -- 07:17 PM EDT     -0.00 knots Slack
Fri -- 07:37 PM EDT     Sunset
Fri -- 10:02 PM EDT     -1.85 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.60.41.421.91.40.90.1-1-1.7-1.9-1.9-1.4-0.40.91.821.610.3-0.7-1.6-1.8-1.7

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 Charleston, SC (3,6,7,8)
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Ground Weather Radar Station Charleston, SC
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weather_mapweather_map weather_map

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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.