Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Darien, GA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:23AMSunset 8:22PM Sunday May 26, 2019 4:59 PM EDT (20:59 UTC) Moonrise 1:02AMMoonset 12:11PM Illumination 46% Phase: Third Quarter Moon; Moon at 23 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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AMZ450 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 247 Pm Edt Sun May 26 2019
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a moderate chop.
Monday..South southwest winds 10 to 15 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop.
Monday night..Southwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Inland waters a light chop.
Tuesday..Southwest winds 5 to 10 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop.
Tuesday night..South southwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Wednesday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop.
Wednesday night..South winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters choppy.
Thursday..South southeast winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Thursday night..South winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters choppy.
Friday..South winds 15 to 20 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A slight chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 247 Pm Edt Sun May 26 2019
Synopsis.. High pressure conditions expected to persist over area waters into early next week. Surface high pressure shifts southeastward into mid-week allowing the opportunity for a couple weak troughs to push into the southeast toward the end of the week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of may 25, 2019 at 1200 utc... 62 nautical miles east of flagler beach. 70 nautical miles east of saint augustine beach. 80 nautical miles east of jacksonville beach. 96 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Darien, GA
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location: 31.32, -81.36     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 261941
afdchs
area forecast discussion
national weather service charleston sc
341 pm edt Sun may 26 2019

Synopsis
High pressure and unseasonably hot conditions will persist most
of this week. Some relief from the oppressive heat is expected
by next weekend.

Near term until 6 am Monday morning
Note: the highs so far today at kchs and ksav have been 100 degrees
and 101 degrees respectively which break the previous daily records.

See climate section below for details.

Another unseasonably warm night on tap with the summer-like
pattern remaining in place. Stayed above MOS guidance for low
temperatures based on what happened last night and the unusual
pattern which yields mostly lower to mid 70s inland and closer
to 80 at the coast.

Short term 6 am Monday morning through Wednesday
Memorial day through Wednesday: record heat will continue as the
region sits underneath an anomalous mid and upper anticyclone across
the gulf of mexico and florida. At the surface we find an elongated
ridge of high pressure from the atlantic across florida, while a
thermal trough is situated over or near the local region. H5 heights
are as high as 5890-5900 meters Monday, then fall about 10 meters
Tuesday and Wednesday. Even so, all these heights are close to
record levels for late may. Combined with h85 temps that are also
near record may levels at 20-22c and utilizing the low level
thickness forecast scheme, we are still forecasting 100f or greater
across the vast majority of the region all three afternoons. There
will be a sea breeze each day, but it's inland progression will be a
struggle on Monday with it not reaching maybe the us-17 corridor by
late. Because of the onshore circulations, this will at least hold
shoreline temps down to the upper 80s and lower 90s. Night time lows
will struggle to get down to the lower and middle 70s, with even
upper 70s along some coastal locations and in downtown charleston.

Regarding the potential for heat advisories, which we will issue
when the heat index reaches 105f this early in the year, is a
possibility all three afternoons. But with a deep offshore flow, dew
points inland will mix out similar to the past few days. It's over
the coastal counties where our concern is the greatest, as the
pooling of higher dew points in the lower and middle 70s behind the
sea breeze will develop. Since it is still a marginal event for
Monday afternoon, limited in both time and space, we will defer any
advisory to the midnight set of meteorologists.

Unfortunately there is still little or no chance of any much needed
rainfall. There might be a stray short-lived shower on the sea
breeze each afternoon, but pop is no greater than 5 or 10%. Thus we
will add to our ongoing two week stretch where most places have not
received any precipitation during this time.

Long term Wednesday night through Sunday
The mid-level ridge will remain in place Wednesday night, then
finally flatten out Thursday night followed by zonal flow Friday and
Saturday. Surface high pressure will continue to dominate our
weather pattern through Thursday. The models still show a cold front
approaching our area Friday or Saturday. They have trended wetter,
which seems a little suspicious considering the front will be
running into our very dry airmass. We opted to only introduce slight
chance pops Friday and Saturday. But early indications are rainfall
amounts won't put much of a dent in our drought. Temperatures will
trend downwards each day. However, they are still forecasted to
remain above normal.

Aviation 19z Sunday through Friday
Vfr at kchs ksav through 18z Monday.

Extended aviation outlook:VFR.

Marine
Tonight: south to southwest winds will prevail, mainly 15 kt or
less with some gusts to 20 kt. Seas will average 2-3 ft,
highest to the east.

Monday through Friday: a huge area of high pressure that covers a
large chunk of the atlantic, with its ridge axis near or just south
of 30 degrees north latitude will dominate the area. This will
produce a general SW flow at or below 15 kt through mid week,
although sea breeze influences will give a little boost to speeds in
charleston harbor and on the amz350 waters each afternoon and early
evening. Seas on average will be 2-3 ft through Wednesday or
Thursday.

Later in the week there is a little stronger pinching of the
gradient around the ridge and an inland trough, so winds and seas do
increase a notch, but nothing high enough for an advisory.

Climate
The ongoing heat wave will challenge or break many of these records:
earliest 100 degree temperatures:
kchs: may 26, 2019 (previously june 2, 1985).

Ksav: may 25, 2019 and 1953.

Kcxm: june 1, 1985.

Monthly record highs for may:
kchs: 100 set may 26, 2019 (previously 99 set may 21, 1938).

Ksav: 101 set may 30, 1898 and may 31, 1945.

Kcxm: 99 set may 21, 1938 and may 26, 1953.

Records for Sun 05 26...

station record high year(s)
------- ----------- -------
kchs 98 1953
ksav 100 1953
station record high min year(s)
------- --------------- -------
kchs 75 1998
kcxm 79 1998
records for Mon 05 27...

station record high year(s)
------- ----------- -------
kchs 98 1989
ksav 98 1989, 1962
kcxm 95 1962, 1926
station record high min year(s)
------- --------------- -------
kchs 76 1991
ksav 77 1878
kcxm 78 1991
records for Tue 05 28...

station record high year(s)
------- ----------- -------
kchs 97 1967, 1964
ksav 96 1964, 1898
kcxm 93 2000
station record high min year(s)
------- --------------- -------
kchs 76 2000
ksav 76 1885
kcxm 80 2000
records for Wed 05 29...

station record high year(s)
------- ----------- -------
kchs 95 1945
ksav 98 1945, 1898
station record high min year(s)
------- --------------- -------
kchs 76 2018
ksav 75 1885
kcxm 77 1998
records for Thu 05 30...

station record high year(s)
------- ----------- -------
kchs 95 2004
ksav 101 1898
station record high min year(s)
------- --------------- -------
kchs 75 1982
ksav 75 1924
kcxm 78 1998
records for Fri 05 31...

station record high year(s)
------- ----------- -------
kchs 98 1953
station record high min year(s)
------- --------------- -------
kchs 77 2004
ksav 75 2004
records for Sat 06 01...

station record high min year(s)
------- --------------- -------
kchs 77 1974
ksav 76 1880

Equipment
The downtown charleston (kcxm) observation will be unavailable
until further notice. The cause of the outage is unknown.

Technicians will address the outage on Tuesday.

Wfo charleston will only conduct upper-air soundings at 12z until
further notice due to a shortage of helium.

Chs watches warnings advisories
Ga... Heat advisory until 8 pm edt this evening for gaz099>101-
114>119-137-138-140.

Sc... Heat advisory until 8 pm edt this evening for scz042>045-
047>052.

Marine... None.

Near term... Rjb
short term... 33
long term...

aviation... 33 rjb
marine... 33 rjb
climate...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 8 mi59 min SSE 9.9 93°F 1018 hPa (-2.0)74°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 27 mi69 min S 14 G 16 80°F 80°F1018.3 hPa (-2.1)73°F
41112 - Offshore Fernandina Beach, FL (132) 42 mi59 min 82°F2 ft
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi47 min SE 7 G 11 91°F 82°F1019.1 hPa

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA7 mi64 minSE 910.00 miMostly Cloudy95°F72°F48%1017.9 hPa
Brunswick, Malcolm McKinnon Airport, GA12 mi66 minS 1010.00 miFair88°F73°F63%1018.4 hPa

Wind History from BQK (wind in knots)
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Last 24hrSE11SE11SE10SE7S8S8S5S7SW6SW6SW7SW6SW7W4SW5W9SW12W11W8SW6NW5SW7SE10SE8
1 day agoSE9SE9S8SE6S7S7CalmSW6SW5SW5SW5SW5SW5SW5W3W8W8W9W9W7N7E6E6E12
2 days agoSE10E8E10SE7SE4SE6SE5S6SE4CalmS4CalmNW3CalmW3W4NW5SW5W6CalmNW4E6SE9SE8

Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
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Sun -- 02:01 AM EDT     Moonrise
Sun -- 03:23 AM EDT     6.67 feet High Tide
Sun -- 06:23 AM EDT     Sunrise
Sun -- 08:50 AM EDT     1.12 feet Low Tide
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 01:11 PM EDT     Moonset
Sun -- 03:50 PM EDT     6.27 feet High Tide
Sun -- 08:21 PM EDT     Sunset
Sun -- 08:59 PM EDT     1.63 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.45.46.26.66.55.54.12.61.51.11.52.33.34.45.46.16.35.64.43.121.61.92.5

Tide / Current Tables for Old Tower, Sapelo Island, Georgia
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Old Tower
Click for Map
Sun -- 02:01 AM EDT     Moonrise
Sun -- 02:32 AM EDT     6.35 feet High Tide
Sun -- 06:23 AM EDT     Sunrise
Sun -- 08:50 AM EDT     1.07 feet Low Tide
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 01:11 PM EDT     Moonset
Sun -- 02:59 PM EDT     5.97 feet High Tide
Sun -- 08:21 PM EDT     Sunset
Sun -- 08:59 PM EDT     1.56 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.75.76.36.35.74.63.32.11.31.11.52.43.64.75.665.64.73.62.61.81.61.92.6

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.
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Wind Forecast for Charleston, SC (16,3,4,5)
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Ground Weather Radar Station Jacksonville, FL
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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.