Sunday, September20, 2020
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Marine Weather and Tides
Esperanza, PR

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:10AMSunset 6:21PM Sunday September 20, 2020 5:58 AM AST (09:58 UTC) Moonrise 9:20AMMoonset 9:09PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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AMZ725 Coastal Waters Of Southern Usvi Vieques And Eastern Puerto Rico Out 10 Nm- 343 Am Ast Sun Sep 20 2020
.small craft advisory in effect until 2 pm ast this afternoon...
Today..South winds 5 to 10 knots. Seas 4 to 7 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northeast swell 4 to 5 feet. Scattered showers.
Tonight..South winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Isolated showers.
Monday..South winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Scattered showers and isolated Thunderstorms.
Monday night..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell around 4 feet. Scattered showers.
Tuesday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Northeast swell 4 to 5 feet. Isolated Thunderstorms. Scattered showers.
Wednesday..Southeast winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northeast swell 4 to 7 feet. Scattered showers.
Thursday..East winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 12 seconds. Northeast swell 4 to 7 feet. Isolated Thunderstorms. Scattered showers.
AMZ700 343 Am Ast Sun Sep 20 2020
Synopsis for puerto rico and the uS. Virgin islands waters... Winds will gradually become southerly as major hurricane teddy moves northwestward across the atlantic and stay well north of the region through early in the week. Northeasterly swells generated by teddy will continue to spread across the regional waters resulting in extremely hazardous marine conditions through at least Monday, and another second pulse of the swell is expected from Tuesday through the end of the week.


7 Day Forecast for Marine Location Near Esperanza, PR
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location: 18.12, -65.46     debug


Area Discussion for - San Juan, PR
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FXCA62 TJSJ 200845 AFDSJU

Area Forecast Discussion National Weather Service San Juan PR 445 AM AST Sun Sep 20 2020

SYNOPSIS. TUTT low north of the area will aid in the development of afternoon showers and thunderstorms. Light southerly steering winds today will cause showers to drift along the northern sections of PR. Winds will continue from the east to southeast for the next few days and diurnally induced afternoon convection should shift more over the west/northwest portions of the islands. Max temps should increase in general across the islands due to the southerly winds.

SHORT TERM. Today through Tuesday .

A TUTT low north of the area and an upper-level low will provide modest instability over the region today. The upper-level low will remain through Tuesday; however, the TUTT low is expected to peter out later today. Hurricane Teddy will continue to move northwest across the north central Atlantic today; winds are expected to shift to the southeast as Hurricane Teddy relinquishes its hold on the local and regional winds. The southerly winds will shift showers and isolated thunderstorms to the northwestern and northern areas of Puerto Rico this afternoon. Light steering winds will cause showers that develop to move slowly, and cause urban and small stream flooding and ponding of water on roadways.

Monday, upper-level conditions become more favorable as a Polar trough deepens across the western Atlantic, downstream of the Polar trough a mid to upper level low is expected to develop just north of Puerto Rico. As a result, the global models has 500 mb temperatures cooling to -6 to -8 Monday and Tuesday. Low-level moisture is progged to increase each day during the short-term period. Tuesday, low-level moisture return to near normal levels.

LONG TERM. Wednesday through Monday .

A short wave trough is forecast to move over the region from the Atlantic waters on Wednesday, and increase instability. At lower levels, moisture from a weakening front is expected to advect from the northwest and a weak ridge over the northeastern Caribbean will promote southerly steering winds. These features, will aid in the development of scattered showers with possible heavy thunderstorms along the northern slopes of PR during the afternoon hours. Urban and small stream flooding is expected with the heaviest showers.

A TUTT is expected to gradually build northeast of the area through the rest of the long term period. Meanwhile, a surface ridge building over the southwestern Atlantic will cause winds to gradually turn from the east to southeast on Thursday and from the east to northeast from Friday onwards, as it strengthens over the western Atlantic. Normal to above normal precipitable water content is expected and afternoon convection is expected each day over mainland PR.

AVIATION. VFR conds expected to prevail at all TAF sites through at least 20/16Z. SHRA/ISO TSRA will develop over the interior PR by 20/17Z and slowly move northward. These SHRA/TSRA could cause brief MVFR conds over the interior PR. Brief MVFR conds possible for the northern TAF sites of PR due to +SHRA/TSRA through 20/22Z. Sfc winds lgt/vrbl til 20/14Z then bcmg sea breezes of generally less than 12 kt til 20/22Z.

MARINE. Northeast swell generated by Hurricane Teddy will continue to cause hazardous seas today and through early Monday. Another second pulse of the swell is expected to increase seas once again from Tuesday through much of the week and hazardous seas will return once again across the Atlantic waters and local passages. Offshore buoys were indicating a decreasing trend in wave heights since yesterday, with buoy 41043 recently reporting seas just near 7 feet. Regardless, due to the direction of the swell, higher seas are still possible across portions of the Atlantic waters. Therefore, Small Craft Advisories continue in effect for most of the local waters today and through Monday morning.

Across the Atlantic coastline of the islands, rough surf conditions and life-threatening rip currents will continue for the next several days. As the swell briefly drops on Monday, the High Surf Advisory will be let to expire. However, the High Rip Current risk will likely be extended through next week for the north facing beaches of the islands.

PRELIMINARY POINT TEMPS/POPS. SJU 91 79 92 80 / 50 20 60 50 STT 89 80 88 81 / 30 30 50 40

SJU WATCHES/WARNINGS/ADVISORIES. PR . High Rip Current Risk through Monday afternoon for Culebra- Mayaguez and Vicinity-North Central-Northeast-Northwest-San Juan and Vicinity-Southeast.

High Surf Advisory until 6 AM AST Monday for North Central- Northeast-Northwest-San Juan and Vicinity-Southeast.

VI . High Rip Current Risk through Monday afternoon for St Thomas. St John. and Adjacent Islands.

High Rip Current Risk through late tonight for St Croix.

High Surf Advisory until 6 PM AST this evening for St Croix.

AM . Small Craft Advisory until 8 PM AST this evening for Caribbean Waters of Puerto Rico from 10 NM to 17N-Anegada Passage Southward to 17N.

Small Craft Advisory until 11 AM AST Monday for Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-Coastal Waters of Northern Puerto Rico out 10 NM-Coastal Waters of Northern USVI and Culebra out 10 NM-Coastal Waters of Northwestern Puerto Rico out 10 NM-Mona Passage Southward to 17N.

Small Craft Advisory until 2 PM AST this afternoon for Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out 10 NM.



SHORT TERM . TW LONG TERM . DSR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ESPP4 - 9752695 - Esperanza, PR 2 mi59 min N 1 G 1.9 86°F1010.7 hPa (-0.0)
41056 10 mi59 min NW 3.9 G 3.9 82°F 86°F4 ft1009.5 hPa (-0.0)
CLBP4 - 9752235 - Culebra, PR 15 mi59 min 76°F 86°F1010.2 hPa (+0.0)
CHAV3 - 9751639 - Charlotte Amalie, VI 32 mi59 min 79°F 1010.3 hPa (-0.0)
41052 - South of St. John, Virgin Islands 38 mi59 min NW 1.9 G 3.9 83°F 86°F2 ft1009.3 hPa (-0.0)
LAMV3 41 mi59 min 76°F 86°F
41053 - San Juan, PR 42 mi59 min SSW 5.8 G 9.7 80°F 87°F1009.3 hPa (-0.3)
JOXP4 - Jobos Bay Reserve, Puerto Rico 42 mi74 min Calm 74°F 1012 hPa70°F
SJNP4 - 9755371 - San Juan, PR 42 mi59 min SSW 4.1 G 5.1 79°F 87°F1010.5 hPa (+0.0)
CHSV3 - 9751364 - Christiansted Harbor, Virgin Islands 48 mi59 min ESE 4.1 G 5.1 79°F 85°F1010 hPa (+0.0)
LTBV3 - 9751401 - Lime Tree Bay, VI 48 mi59 min NE 1.9 G 2.9 80°F 87°F1011.2 hPa (+0.0)

Wind History for Esperanza, Vieques Island, PR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Juan, Luis Munoz Marin International Airport, PR36 mi63 minN 010.00 miFair79°F73°F82%1010.4 hPa

Link to 5 minute data for TJSJ

Wind History from JSJ (wind in knots)
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Last 24hrCalmW4CalmNW6NW5NW7NW9N8N8N8N5N6N5CalmS5S3SW3CalmS4CalmCalmSW3SW3Calm
1 day agoCalmSW3S33NW4N5N9N9N9N9N9NE7NE6NE6N6NE6NE5NE4N3CalmCalmS4SW3SW3
2 days agoN7N8N9NE11N11N11N9NE14NE9NE10NE11NE10NE9NE7NE10NE8E8E8E9E5SE4CalmCalmCalm

Tide / Current Tables for Puerto Ferro, Isla de Vieques, Puerto Rico
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Puerto Ferro
Click for Map
Sun -- 04:24 AM AST     0.15 feet Low Tide
Sun -- 06:10 AM AST     Sunrise
Sun -- 09:20 AM AST     Moonrise
Sun -- 10:29 AM AST     0.98 feet High Tide
Sun -- 05:01 PM AST     0.73 feet Low Tide
Sun -- 06:19 PM AST     Sunset
Sun -- 08:21 PM AST     0.88 feet High Tide
Sun -- 09:08 PM AST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.40.30.20.20.20.30.50.70.9110.90.90.80.80.70.70.80.80.90.90.80.8

Tide / Current Tables for Vieques Passage, Puerto Rico Current (2)
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Vieques Passage
Click for Map
Sun -- 01:02 AM AST     0.67 knots Max Flood
Sun -- 03:53 AM AST     -0.00 knots Slack
Sun -- 06:11 AM AST     Sunrise
Sun -- 06:56 AM AST     -0.74 knots Max Ebb
Sun -- 09:21 AM AST     Moonrise
Sun -- 09:51 AM AST     0.00 knots Slack
Sun -- 01:12 PM AST     0.95 knots Max Flood
Sun -- 04:25 PM AST     -0.00 knots Slack
Sun -- 06:19 PM AST     Sunset
Sun -- 07:45 PM AST     -0.99 knots Max Ebb
Sun -- 09:09 PM AST     Moonset
Sun -- 11:17 PM AST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.70.60.3-0-0.4-0.7-0.7-0.6-0.30.10.50.80.90.90.60.2-0.3-0.7-0.9-1-0.8-0.5-0.1

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Puerto Rico,Virgin Islands
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