Sunrise 6:07 AM   Sunset 6:44 PM Moonrise 12:59 PM   Moonset 1:42 AM

  Print   HELP   Reset   Save   Recall

AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 918 Pm Ast Mon Apr 15 2024
Rest of tonight - East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas around 5 feet. Dominant period 6 seconds. Scattered showers with isolated Thunderstorms.Tuesday - East winds 10 to 15 knots with gusts up to 25 knots. Seas 2 to 4 feet with occasional seas around 5 feet. Dominant period 6 seconds. Scattered showers with isolated Thunderstorms.Tuesday night - East winds 5 to 10 knots. Seas 2 to 4 feet with occasional seas around 5 feet. Dominant period 6 seconds. Scattered showers with isolated Thunderstorms.Wednesday - East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 6 seconds. Scattered showers. Isolated Thunderstorms in the afternoon.Wednesday night - Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Numerous showers with isolated Thunderstorms.Thursday - East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.Friday - Northeast winds 5 to 10 knots. Seas around 2 feet or less. Dominant period 7 seconds. Isolated showers.Saturday - East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 6 seconds. Scattered showers.

AMZ700 918 Pm Ast Mon Apr 15 2024
Synopsis for puerto rico and the uS. Virgin islands waters - . A surface ridge over the north-central atlantic and broad surface trough across the eastern caribbean will generate moderate to locally fresh east-northeasterly winds. A fading northerly swell and choppy wind driven seas will continue to promote confused seas across the atlantic waters. An approaching upper level trough and induced surface trough will continue to promote inclement weather across the local waters for the next few days. A pulse of northeasterly swell is forecast to arrive by Thursday increasing wave periods once again.

FXCA62 TJSJ 152150 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 550 PM AST Mon Apr 15 2024

SYNOPSIS

Wet and unstable conditions continue trough at least Wednesday.
Tomorrow through Wednesday appear to have the most favorable conditions for heavy shower and thunderstorm development. This activity along with quick river rises and water surges with flash flooding, and landslides are possible. Conditions should improve by the latter half of the week. Small Craft Advisories are in effect through late Tuesday night.

SHORT TERM
Tonight to Wednesday...

An unstable and wet pattern continues tonight and through most of the period for the region. With a surface trough crossing the area from the east and an upper trough approaching from the northwest, since midnight to 500 PM AST the highest accumulations from showers and some isolated thunderstorms were observed over northwestern, northern and northeastern PR. Radar estimated accumulations from this period above 2.5 in were observed over Moca (up to 3.8 in), Isabela (up to 3.8 in), Quebradillas (up to 3.8 in), Arecibo (up to 3.59 in), Naguabo (up to 2.66 in), Fajardo (up to 2.96 in) and Luquillo (up to 3.02 in). Higher amounts (5-7) in where detected offshore over the NE waters. This prompted the issuance of several products, including Flood Advisories earlier today. Through the rest of the short term period, especially Tuesday and into Wednesday, weather conditions will continue to deteriorate with instability increasing due to an approaching deepening upper-level trough from our northwest, interacting with low level convergence and moisture pooling. Above normal precipitable water (PWAT) values will continue for most of the region during the period, with available moisture reaching the mid to upper levels. The potential for isolated to scattered thunderstorms will continue to increase, along with stronger shower activity, during the period as 500 mb temperatures decrease to normal and then to below normal for this time of the year, falling to -7 to -9 degrees Celsius during the period, only starting to increase on Wednesday night. PWAT values are forecast to decrease on Wednesday to more normal values as well. However, this moisture, still fairly unstable conditions, diurnal and local effects will promote convective development during the late morning and afternoon hours on Wednesday. Winds will shift during the period to become more east- northeast by Wednesday. There is high confidence that this expected unsettled weather pattern for the period will lead to quick river rises and water surges with flash flooding, and landslides, especially through early Wednesday.


LONG TERM
Thursday through Monday...

PREV DISCUSSION
/Issued 328 AM AST Mon Apr 15 2024/

As the influential surface-induced perturbation and associated mid to upper-level through begins to move well to the northeast of the region, weather conditions will begin to improve on Thursday.
The arrival of drier air and a building mid to upper-level ridge across the western Caribbean will reinforce a more stable weather pattern Thursday onward. Meanwhile, a surface ridge builds across the west Atlantic to continue the trend of east-northeast winds once again through Friday, followed by winds becoming more easterly and increasing over the weekend. Weather conditions will consist of the occasional passing trade wind showers and more typical isolated to scattered afternoon showers in and around the islands over the weekend. On Monday a moist airmass may begin to lift across the eastern Caribbean, bringing a wetter pattern throughout the following week.

AVIATION

(18Z TAFS)

SHRA/TSRA are expected to continue across the local area through the forecast period. Periods of reduced VIS and low ceilings are possible, especially for the USVI and TJSJ terminals in general, and after 16/17Z for TJBQ. Mountain obscuration is also possible. Winds will be from the SE at 13-16 kts, with stronger gusts.

MARINE

A surface ridge over the north-central Atlantic and broad surface trough across the eastern Caribbean will generate moderate to locally fresh east-northeasterly winds. A fading northerly swell and choppy wind driven seas will continue to promote confused seas across the Atlantic waters. An approaching upper level trough and induced surface trough will continue to promote inclement weather across the local waters for the next few days. A pulse of northeasterly swell is forecast to arrive by Thursday increasing wave periods once again.

BEACH FORECAST

A High Risk of Rip Currents is in effect through 6 PM AST (decreasing to moderate after) for the northern coastline of Puerto Rico, from Aguadilla to Rio Grande, as well as for Culebra.
There is also a Moderate Risk of Rip Currents tonight for the north oriented beaches of Rincon, the beaches of Aguada, Luquillo, Fajardo, Ceiba, Vieques and most of the coastline of the USVI.
Low Risk of Rip Currents elsewhere tonight.

SJU WATCHES/WARNINGS/ADVISORIES
PR...High Rip Current Risk until 6 PM AST this evening for PRZ001-002- 005-008-012.

VI...None.
AM...Small Craft Advisory until 6 AM AST Wednesday for AMZ711.

Small Craft Advisory until 6 PM AST this evening for AMZ723.

Small Craft Advisory from 6 PM Tuesday to 6 AM AST Wednesday for AMZ741.

toggle option: (graph/table)

Playa de Ponce
Click for Map
Mon -- 12:54 AM AST     Moonset
Mon -- 06:09 AM AST     Sunrise
Mon -- 06:19 AM AST     0.86 feet High Tide
Mon -- 12:03 PM AST     Moonrise
Mon -- 03:14 PM AST     First Quarter
Mon -- 06:07 PM AST     0.04 feet Low Tide
Mon -- 06:43 PM AST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Playa de Ponce, Puerto Rico, Tide feet

Playa Cortada
Click for Map
Mon -- 12:53 AM AST     Moonset
Mon -- 06:08 AM AST     Sunrise
Mon -- 06:36 AM AST     0.86 feet High Tide
Mon -- 12:02 PM AST     Moonrise
Mon -- 03:14 PM AST     First Quarter
Mon -- 05:43 PM AST     0.04 feet Low Tide
Mon -- 06:42 PM AST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Playa Cortada, Puerto Rico, Tide feet

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Miami, FL,