Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Santo Domingo, PR

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:15AMSunset 6:25PM Wednesday September 20, 2017 9:02 AM AST (13:02 UTC) Moonrise 6:32AMMoonset 6:59PM Illumination 0% Phase: New Moon; Moon at 29 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
    EDIT      (on/off)   Help
AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 549 Am Ast Wed Sep 20 2017
.hurricane warning in effect...
Today.. Hurricane conditions. Northwest winds 100 to 120 knots with gusts to around 145 knots becoming southwest 50 to 60 knots with gusts to around 75 knots in the afternoon. Seas over 20 feet with occasional seas up to 43 feet. Dominant period 11 seconds. East swell 16 to 21 feet. Showers and scattered Thunderstorms.
Tonight.. Tropical storm conditions expected with hurricane conditions possible. Southwest winds 35 to 45 knots with gusts to around 55 knots becoming south 25 to 30 knots after midnight. Seas over 20 feet with occasional seas up to 29 feet subsiding to 16 to 18 feet with occasional seas up to 20 feet after midnight. Dominant period 10 seconds. Southeast swell 10 to 15 feet becoming southwest 4 to 8 feet after midnight. Showers and scattered Thunderstorms.
Thursday.. Tropical storm conditions possible with hurricane conditions also possible. South winds 20 to 25 knots. Seas 10 to 12 feet with occasional seas up to 15 feet. Dominant period 7 seconds. West swell 4 to 6 feet. Showers and numerous Thunderstorms.
Thursday night..South winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Dominant period 7 seconds. West swell around 4 feet in the evening. Showers and numerous Thunderstorms.
Friday..Southeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Showers and numerous Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Scattered showers and isolated Thunderstorms.
Saturday..Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated Thunderstorms in the morning. Scattered showers through the day.
Saturday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Southeast swell around 4 feet after midnight. Scattered showers.
Sunday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Southeast swell around 4 feet. Scattered showers.
AMZ700 549 Am Ast Wed Sep 20 2017
Synopsis for puerto rico and the uS. Virgin islands waters... Maria is a category 4 hurricane. This is a very dangerous storm. Hurricane force winds will likely continue across the anegada passage and the caribbean waters through this afternoon, and across the atlantic coastal waters through tonight. There is no chance of a successful passage through this storm.

7 Day Forecast for Marine Location Near Santo Domingo, PR
   Hourly   EDIT   Help
location: 18.1, -66.75     debug


Area Discussion for - San Juan, PR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxca62 tjsj 201121 rra
afdsju
area forecast discussion... Delayed
national weather service san juan pr
721 am ast Wed sep 20 2017

Synopsis Core of extremely dangerous hurricane maria moving
over puerto rico.

Discussion Hurricane force winds will likely continue across
the usvi, vieques and culebra through the afternoon hours; and
across puerto rico through tonight. These winds will bring
catastrophic damage. Severe injury is possible in less than a
strong structure. Now is the time to remain safely sheltered from
the storm.

Rainfall associated with hurricane maria will continue to lead to
rapid rises along all streams and rivers at the u.S. Virgin
islands and puerto rico. Mudslides are also expected. Any homes in
low- lying areas near rivers and streams will be flooded and
flooding may leave residents with no avenue of escape. Those in
coastal areas may have streams and rivers backed up from storm
surge created by the hurricane.

Aviation Sustained hurricane force winds will continue during
the next few hours with ifr lifr condtions. Check with
authorities for airport closures.

Marine Hurricane force winds will likely continue across the
anegada passage and the caribbean waters through this afternoon,
and across the atlantic coastal waters through tonight. There is
no chance of a successful passage through this storm.

Preliminary point temps pops
Sju 82 76 83 76 100 100 80 20
stt 82 76 82 76 100 90 80 60

Sju watches warnings advisories
Pr... Hurricane warning for central interior-culebra-eastern interior-
mayaguez and vicinity-north central-northeast-northwest-
ponce and vicinity-san juan and vicinity-southeast-
southwest-vieques-western interior.

Flash flood watch through Friday afternoon for central interior-
culebra-eastern interior-mayaguez and vicinity-north
central-northeast-northwest-ponce and vicinity-san juan and
vicinity-southeast-southwest-vieques-western interior.

Vi... Hurricane warning for st croix-st.Thomas... St. John... And
adjacent islands.

Flash flood watch through Friday afternoon for st croix-
st.Thomas... St. John... And adjacent islands.

Am... Hurricane warning for anegada passage southward to 17n-atlantic
waters of puerto rico and usvi from 10 nm to 19.5n-
caribbean waters of puerto rico from 10 nm to 17n-coastal
waters of northwestern puerto rico out 10 nm-coastal waters
of southwestern puerto rico out 10 nm-coastal waters of
northern puerto rico out 10 nm-coastal waters of northern
usvi and culebra out 10 nm-coastal waters of southern
puerto rico out 10 nm-coastal waters of southern usvi
vieques and eastern puerto rico out 10 nm-mona passage
southward to 17n.

Flash flood watch through Friday afternoon for coastal waters of
southwestern puerto rico out 10 nm-coastal waters of
northern usvi and culebra out 10 nm-coastal waters of
southern puerto rico out 10 nm-coastal waters of southern
usvi vieques and eastern puerto rico out 10 nm.

Short term... 99
long term... .99


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGIP4 - 9759110 - Magueyes Islands, PR 18 mi44 min NNW 35 G 50 77°F 84°F993.5 hPa
42085 - Southeast of Ponce, PR 20 mi62 min W 41 G 54 80°F 85°F
MGZP4 - 9759394 - Mayaguez, PR 23 mi50 min NNW 20 G 38 79°F 997.4 hPa
AROP4 - 9757809 - Arecibo, PR 26 mi44 min NNE 62 G 79
41115 - Rincon, Puerto Rico (181) 34 mi32 min 85°F10 ft
SJNP4 - 9755371 - San Juan, PR 42 mi50 min Calm G 0 80°F 84°F975.5 hPa
41053 - San Juan, PR 43 mi62 min 80°F 83°F18 ft
YABP4 - 9754228 - Yabucoa Harbor, PR 49 mi44 min Calm G 0 79°F

Wind History for Penuelas (Punta Guayanilla), PR
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
Click EDIT to select an airport
Tide / Current Tables for Punta Guayanilla, Puerto Rico
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Punta Guayanilla
Click for Map
Wed -- 01:30 AM AST     New Moon
Wed -- 03:45 AM AST     0.52 feet Low Tide
Wed -- 06:15 AM AST     Sunrise
Wed -- 06:31 AM AST     Moonrise
Wed -- 08:18 AM AST     0.63 feet High Tide
Wed -- 02:31 PM AST     0.56 feet Low Tide
Wed -- 06:24 PM AST     Sunset
Wed -- 06:58 PM AST     Moonset
Wed -- 07:54 PM AST     0.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.60.60.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.70.70.70.70.60.6

Tide / Current Tables for Playa de Ponce, Puerto Rico
   EDIT      (on/off)   Help   One Week of Data
Playa de Ponce
Click for Map
Wed -- 01:30 AM AST     New Moon
Wed -- 03:20 AM AST     0.65 feet Low Tide
Wed -- 06:15 AM AST     Sunrise
Wed -- 06:31 AM AST     Moonrise
Wed -- 07:07 AM AST     0.70 feet High Tide
Wed -- 01:37 PM AST     0.55 feet Low Tide
Wed -- 06:24 PM AST     Sunset
Wed -- 06:58 PM AST     Moonset
Wed -- 07:59 PM AST     0.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.70.60.70.70.70.70.70.70.60.60.60.60.60.60.60.70.70.80.80.80.80.7

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
carb_satellite

GOES Local Image of Puerto Rico    EDIT
Geos

Wind Forecast for (9,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Puerto Rico,Virgin Islands
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.