Flood Warning
Flood Statement
National Weather Service San Juan PR
504 PM AST Wed Apr 30 2025
.Rio Loco at Las Latas is almost at moderate flood stage now.
Emergency Managers indicated that road PR-332, near Hacienda La
Igualdad is now closed due to flooding from this river.
PRC055-121-153-010130-
/O.CON.TJSJ.FA.W.0013.000000T0000Z-250501T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Guanica PR-Sabana Grande PR-Yauco PR-
504 PM AST Wed Apr 30 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM AST THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues.
* WHERE...Guanica, Sabana Grande and Yauco.
* WHEN...Until 930 PM AST.
* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring.
* ADDITIONAL DETAILS...
- At 502 PM AST, Doppler radar indicated slow moving
thunderstorms with very heavy rainfall across the warned
area. Between 1 and 3 inches of rain have fallen.
- Additional rainfall amounts of 1 to 2 inches are possible in
the warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 1801 6691 1801 6689 1802 6690 1804 6690
1804 6688 1799 6685 1799 6686 1799 6691
$$
ERG
Flood Warning
National Weather Service San Juan PR
441 PM AST Wed Apr 30 2025
.Rio Grande de Manati continues to rise due to excessive runoff in
Ciales. This flooding will likely impact PR-2 in Manati, and La Boca
in Barceloneta later this evening.
PRC017-039-091-010600-
/O.NEW.TJSJ.FA.W.0014.250430T2041Z-250501T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barceloneta PR-Ciales PR-Manati PR-
441 PM AST Wed Apr 30 2025
...FLOOD WARNING IN EFFECT UNTIL 2 AM AST THURSDAY...
* WHAT...Flooding caused by excessive runoff is expected.
* WHERE...Along Rio Grande de Manati in Barceloneta, Ciales and
Manati.
* WHEN...Until 200 AM AST Thursday.
* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring. Streams
continue to rise due to excess runoff from earlier rainfall.
* ADDITIONAL DETAILS...
- At 439 PM AST, USGS river sensor indicate that Rio Grande de
Manati is rising, and almost at flood stage in Ciales.
Flooding is ongoing or expected to begin shortly in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 1848 6651 1839 6647 1837 6646 1836 6646
1835 6646 1834 6646 1832 6645 1831 6647
1841 6652 1843 6655 1849 6655
$$
ERG
Flood Watch
Flood Watch
National Weather Service San Juan PR
320 PM AST Wed Apr 30 2025
...THE FLOOD THREAT CONTINUES ACROSS PUERTO RICO....
An extremely wet pattern will prevail during the next several days
due to the combination of abundant tropical moisture and a series of
upper level troughs. Showers and thunderstorms will now impact the
western, interior and southern sections of PR. Based on the latest
guidance, widespread shower and thunderstorms activity will continue
tonight and Thursday, with coverage and intensity of showers
decreasing somewhat at least during the upcoming weekend.
Rainfall totals are expected to range from 2 to 4 inches, with
locally higher amounts of 5 inches each day particularly mainly
across mountains areas in Puerto Rico tomorrow. Elsewhere, expect
rainfall amounts around 1 to 2 inches.
Due to already saturated soils and rivers and tributaries running
well above normal values; the threat for flood continues at least
through Friday. Any prolonged period of heavy rainfall will result
in urban and flash flooding, river flooding and mudslides
particularly across central Puerto Rico where rains have been
abundant in the last couple of days.
PRZ001>013-010330-
/O.CON.TJSJ.FA.A.0001.000000T0000Z-250502T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North
Central-Central Interior-Ponce and Vicinity-Northwest-Western
Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
Including the cities of Luquillo, Arecibo, Guayama, Guayanilla,
Ceiba, Aguas Buenas, Catano, Humacao, Rio Grande, Adjuntas,
Culebra, Toa Baja, Trujillo Alto, Aguada, Naguabo, Maricao,
Aibonito, Santa Isabel, Hatillo, Cabo Rojo, Vieques, Comerio,
Guanica, Naranjito, San Juan, San Sebastian, Moca, Aguadilla,
Guaynabo, Barranquitas, Rincon, Manati, Fajardo, Ciales,
Orocovis, Hormigueros, Yabucoa, Penuelas, Villalba, Isabela,
Arroyo, Toa Alta, Vega Alta, Vega Baja, Camuy, Florida, Gurabo,
Loiza, Cidra, Ponce, Caguas, Coamo, Lares, Maunabo, Dorado,
Corozal, Juana Diaz, Quebradillas, Mayaguez, Canovanas, Morovis,
Patillas, Utuado, Yauco, Barceloneta, Bayamon, San Lorenzo,
Jayuya, Juncos, Cayey, San German, Salinas, Lajas, Las Marias,
Las Piedras, Carolina, Anasco, and Sabana Grande
320 PM AST Wed Apr 30 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Puerto Rico, including the following areas,
Central Interior, Culebra, Eastern Interior, Mayaguez and
Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity,
San Juan and Vicinity, Southeast, Southwest, Vieques and Western
Interior.
* WHEN...Through Friday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Area creeks and streams are running high and could flood with more
heavy rain.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
CAM
Marine Weather Statement
Marine Weather Statement
National Weather Service San Juan PR
623 PM AST Wed Apr 30 2025
AMZ733-741-010030-
623 PM AST Wed Apr 30 2025
...STRONG THUNDERSTORMS OVER THE WATERS...
The areas affected include...
Caribbean Waters of Puerto Rico from 10 NM to 17N, including the
Coastal Waters of Saint Croix...
Mona Passage Southward to 17N...
At 622 PM AST, Doppler radar indicated strong thunderstorms, capable
of producing winds to around 30 knots. These thunderstorms were
located along a line about 80 miles south of Puerto Rico, or 75
miles southeast of St. Croix. The thunderstorms were nearly
stationary.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners can expect gusty winds to around 30 knots, locally higher
waves, lightning strikes, and heavy downpours. Boaters should seek
safe harbor immediately until these storms pass.
&&
LAT...LON 1779 6757 1765 6644 1758 6495 1700 6492
1701 6660 1701 6788
$$
ERG
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service San Juan PR
512 AM AST Wed Apr 30 2025
AMZ711>745-PRZ001>013-010915-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Northwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
512 AM AST Wed Apr 30 2025
This Hazardous Weather Outlook is for portions of Puerto Rico.
.DAY ONE...Today and Tonight
.Lightning...Isolated to scattered thunderstorms, particularly
across central Puerto Rico. Be prepared to stop all outdoor
activities and seek shelter if storms develop.
.Excessive Rainfall...Life-threatening flash flooding, which may
enter structures and cut off neighborhoods, especially in flood-
prone areas across mountainous areas. Elsewhere, prepare for
ponding of water on roads and in poorly drained areas, and
flooding in urban areas, roads, small streams, and washes. Stay
alert for rising water.
.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across the north-facing beaches. Isolated
stronger rip currents may occur elsewhere, especially near piers,
jetties, and channels.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
An unstable and wet weather pattern will result in shower and
thunderstorm development each afternoon through the end of the
week, increasing the risk of flash flooding and the potential for
frequent lightning and gusty winds with the expected thunderstorms,
particularly on Thursday. A moderate rip current risk will prevail
across the north facing beaches of the islands through the weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.
$$
Hazardous Weather Outlook
National Weather Service San Juan PR
512 AM AST Wed Apr 30 2025
AMZ716-726-VIZ001-002-010915-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
512 AM AST Wed Apr 30 2025
This Hazardous Weather Outlook is for portions of USVI.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms expected at times. Stay alert
and be prepared to take shelter if storms develop.
.Excessive Rainfall...Ponding of water in roads and poorly drained
areas expected. There is a low chance of localized urban
flooding.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Shower and thunderstorm development is expected to continue
through the end of the week, increasing the risk of urban
flooding and the potential for lightning activity and gusty winds,
particularly on Thursday. A moderate rip current risk is expected
on Thursday and Friday across the northern islands.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is encouraged. Please relay any information
about flooding, winds, waves, and rip currents to the National
Weather Service in San Juan.
$$
Hydrologic Outlook
Hydrologic Outlook
PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031-
033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-063-065-
067-069-071-073-075-077-079-081-083-085-087-089-091-093-095-097-099-
101-103-105-107-109-111-113-115-117-119-121-123-125-127-129-131-133-
135-137-139-141-143-145-147-149-151-153-VIC010-020-030-012200-
Hydrologic Outlook
National Weather Service San Juan PR
1135 AM AST Tue Apr 29 2025
...FLOODING THREAT CONTINUES THROUGH THE END OF THE WORKWEEK...
Increasing moisture and instability from a nearby trough will
maintain the potential for heavy showers and thunderstorms through
the end of the workweek.
Since rains have been abundant in the last couple of days in Puerto
Rico, soils are saturated and rivers are running high. Therefore,
there is an elevated to significant threat of flooding for most of
the area. Showers will again develop today, but the activity is
expected to be even more widespread on Wednesday and Thursday.
Additionally, winds are light, so any rain that develops will be
long-lasting.
The areas of highest risk are the interior, north, west and portions
of eastern Puerto Rico, where rainfall accumulations are expected to
be from 2 to 4 inches each day, with isolated higher amounts.
Coastal sectors, Vieques, Culebra, and the Virgin Islands are
expected to see occasional showers and thunderstorms as well.
The main threats are urban and river flooding, and isolated flash
flooding too. Mudslides in areas of steep terrain are expected too.
Conditions will gradually improve by the weekend, but showers and
thunderstorms will still develop each afternoon mostly for the
interior and west of Puerto Rico.
Please stay tuned to our flood advisories and warnings, especially
if you live in flood prone areas, or drive through flood prone
roads. This product will be updated if necessary.
$$
ERG
