Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Jobos, PR

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 5:48AMSunset 6:54PM Thursday May 23, 2019 7:07 PM AST (23:07 UTC) Moonrise 11:17PMMoonset 9:52AM Illumination 76% Phase: Waning Gibbous; Moon at 20 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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AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 421 Pm Ast Thu May 23 2019
Tonight..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated Thunderstorms in the evening. Scattered showers through the night.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Friday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Saturday night..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Isolated showers.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 10 seconds. Scattered showers. Isolated Thunderstorms.
Tuesday..East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 11 seconds. Isolated Thunderstorms. Scattered showers.
AMZ700 421 Pm Ast Thu May 23 2019
Synopsis for puerto rico and the uS. Virgin islands waters... A weak surface trough moving across the caribbean waters today will increase the potential for showers and Thunderstorms through Friday morning. A light to moderate east southeast wind flow will continue across the local waters for the next several day. Seas will increase up to 5 feet across the atlantic waters and passages on Saturday due to a small northerly swell. A second larger, northerly long period swell is forecast to arrive across the atlantic waters by early next week. Isolated Thunderstorms are expected each afternoon over the western waters of puerto rico.


7 Day Forecast for Marine Location Near Jobos, PR
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location: 17.93, -66.16     debug


Area Discussion for - San Juan, PR
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Fxca62 tjsj 231918
afdsju
area forecast discussion
national weather service san juan pr
318 pm ast Thu may 23 2019
synopsis... A mid to upper level low northwest of the islands will
move northeast of the region by Saturday. This feature along with
abundant low level moisture in a southeast wind flow will aid in
the development of diurnally induced afternoon showers and
thunderstorms over portions of the interior and west northwest pr
each day.

Short term Today through Saturday...

scattered to locally numerous showers with isolated thunderstorms
will continue through the rest of the afternoon hours across the
interior and western sections of pr. Urban and small stream
flooding is expected with the heaviest showers. Some of this
activity could linger through the evening hours along coastal
areas and over the western waters of pr. Additional showers with
possible thunderstorms are expected to continue tonight through
Friday morning across the usvi eastern sections of pr as a surface
trough moving across the caribbean waters interacts with the mid
to upper level trough.

The mid to upper level trough is expected to move quickly
east northeast of the region by Saturday. However, there will be
sufficient low level moisture across the region and diurnally
induced afternoon showers and thunderstorms are expected to
develop on Friday and Saturday across portions of the interior and
western pr. Maximum temperatures will continue in the high 80s to
low 90s across the lower elevations to the mid 70s across the
higher elevations each day. Minimum temperatures will continue to
range from the high 70s across the lower elevations to the mid 60s
across the highest elevations.

Long term Sunday through Thursday... From prev discussion
model guidances continue to show plenty of tropical moisture next
week. However, model guidance is now backing-up about the final
position of the amplifying trough aloft. Although pw values could
peak between 1.7 and 2.2 inches, the upper-level dynamic could
fade-away during that period. Confidence is low to moderate due to
inconsistencies in the previous solutions. But, if model guidance
is correct, shower and thunderstorm activity will be associated
to low level convergence, and local and diurnal effects through
at least Tuesday.

A tropical wave is forecast to move off to the south of the
islands by Wednesday. Then, another mid- to upper-level trough is
forecast to amplify from the northwest near the islands by
Thursday, which could interact with the lingering tropical
moisture.

Aviation Vfr conds thru prd. Shra psbl isold tsra and tempo MVFR
at tjsj tist tisx tjmz tjbq til 23 23z. Bkn-ovc nr fl100..Fl250...

sct-bkn nr fl030... Fl050. Isold top nr fl300 W tsra ovr regional
caribbean waters and local passages. Waters. Local sea breeze
variations with ocnl wnd gust at terminals bcmg lgt vrb aft
23 23z.

Marine Seas will continue at less than 4 feet through early
Saturday across the regional waters. East to southeast trades
will continue between 5-15 kt overall through next week. Seas will
increase up to 5 feet on Saturday across the atlantic waters and
passages due to a small northerly swell. However, a moderate risk
of rip currents is expected to prevail across the northern beaches
of the islands through the weekend. A second larger northerly long
period swell is forecast to reach the local waters on Tuesday and
this will increase the breaking wave action and risk of rip
currents along the north facing beaches of the islands.

Preliminary point temps pops
Sju 78 88 78 89 40 40 40 40
stt 78 86 77 88 40 20 30 20

Sju watches warnings advisories
Pr... None.

Vi... None.

Am... None.

Short term... Ds tw
aviation... .Ram
marine... Ds


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
JOXP4 - Jobos Bay Reserve, Puerto Rico 4 mi82 min E 4.1 82°F 1014 hPa73°F
YABP4 - 9754228 - Yabucoa Harbor, PR 19 mi37 min 83°F 74°F
42085 - Southeast of Ponce, PR 20 mi67 min ESE 14 G 19 83°F3 ft1012.1 hPa (-0.0)
SJNP4 - 9755371 - San Juan, PR 37 mi37 min SE 4.1 G 4.1 80°F 82°F1013.6 hPa
41053 - San Juan, PR 38 mi37 min SE 3.9 G 5.8 81°F 1012.7 hPa
ESPP4 - 9752695 - Esperanza, PR 38 mi37 min SE 13 G 16
41056 43 mi37 min E 12 G 14 81°F 1012.4 hPa
MGIP4 - 9759110 - Magueyes Islands, PR 47 mi37 min ESE 4.1 G 8 82°F 84°F1013.7 hPa
AROP4 - 9757809 - Arecibo, PR 48 mi37 min S 1.9 G 2.9

Wind History for Yabucoa Harbor, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from JPS (wind in knots)
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Last 24hr--------------------------------------E5NE5NE5--Calm
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Tide / Current Tables for Arroyo, Puerto Rico
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Arroyo
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Thu -- 03:52 AM AST     0.86 feet High Tide
Thu -- 05:49 AM AST     Sunrise
Thu -- 09:52 AM AST     Moonset
Thu -- 03:06 PM AST     0.05 feet Low Tide
Thu -- 06:52 PM AST     Sunset
Thu -- 11:16 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.80.80.90.90.80.80.80.70.70.70.60.40.30.100.10.10.10.20.30.30.40.5

Tide / Current Tables for Punta Tuna, Puerto Rico
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Punta Tuna
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Thu -- 12:59 AM AST     0.89 feet High Tide
Thu -- 05:48 AM AST     Sunrise
Thu -- 09:51 AM AST     Moonset
Thu -- 03:43 PM AST     -0.01 feet Low Tide
Thu -- 06:52 PM AST     Sunset
Thu -- 11:15 PM AST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.90.80.70.60.60.50.40.30.30.20.10.100-000.10.20.30.50.60.7

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (19,4,5,8)
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Ground Weather Radar Station Puerto Rico,Virgin Islands
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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.