WWA Summary for All Issued by SJU

Flood Advisory

Flood Advisory
National Weather Service San Juan PR
207 PM AST Sun Apr 19 2026

PRC021-051-135-137-192100-
/O.NEW.TJSJ.FA.Y.0140.260419T1807Z-260419T2100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bayamon PR-Dorado PR-Toa Alta PR-Toa Baja PR-
207 PM AST Sun Apr 19 2026

...FLOOD ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

* WHAT...Urban and small stream flooding caused by excessive
  rainfall is expected.

* WHERE...Bayamon, Dorado, Toa Alta and Toa Baja.

* WHEN...Until 500 PM AST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Water over roadways. Overflowing poor drainage areas. Some
  low-water crossings may become impassable.

* ADDITIONAL DETAILS...
  - At 207 PM AST, Doppler radar indicated heavy rain due to
    thunderstorms. This will cause urban and small stream
    flooding. Between 1 and 2 inches of rain have fallen.
  - Additional rainfall amounts of 1 to 2 inches are expected
    over the area. This additional rain will result in minor
    flooding.
  - Some locations that will experience flooding include...
    Toa Alta, Sabana Seca, Toa Baja, Bayamon, Dorado, Vega Alta,
    Guaynabo, Candelaria, Candelaria Arenas, Campanilla, San
    Jose, Rio Lajas, Ingenio, Galateo, San Antonio and
    Mucarabones.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 1840 6613 1838 6613 1838 6614 1837 6614
      1836 6614 1835 6614 1834 6614 1839 6630
      1842 6630 1843 6630 1848 6630


$$

ICP

Flood Advisory
National Weather Service San Juan PR
142 PM AST Sun Apr 19 2026

PRC003-005-011-083-099-117-131-192100-
/O.NEW.TJSJ.FA.Y.0139.260419T1742Z-260419T2100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aguada PR-Aguadilla PR-Anasco PR-Las Marias PR-Moca PR-Rincon PR-
San Sebastian PR-
142 PM AST Sun Apr 19 2026

...FLOOD ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Aguada, Aguadilla, Anasco, Las Marias, Moca, Rincon and
  San Sebastian.

* WHEN...Until 500 PM AST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Rises in small streams and normally dry arroyos. Dangerous flows
  over low-water crossings. Water over roadways. Overflowing poor
  drainage areas. Some low-water crossings may become impassable.
  River or stream flows are elevated. Ponding of water in urban or
  other areas is occurring or is imminent.

* ADDITIONAL DETAILS...
  - At 140 PM AST, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area. Between 1 and 2 inches of rain
    have fallen.
  - Additional rainfall amounts of 1 to 2 inches are expected
    over the area. This additional rain will result and/or
    exharcebate flooding conditions across the area, particularly
    along Rio Culebrinas in Aguada, where a separate Flood
    Advisory remains in effect due to standing water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 1835 6728 1838 6726 1843 6718 1848 6718
      1832 6691 1820 6692 1825 6708 1825 6709
      1831 6725


$$

ICP

Flood Advisory
National Weather Service San Juan PR
133 PM AST Sun Apr 19 2026

PRC121-125-192100-
/O.NEW.TJSJ.FA.Y.0138.260419T1733Z-260419T2100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sabana Grande PR-San German PR-
133 PM AST Sun Apr 19 2026

...FLOOD ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

* WHAT...Small stream flooding caused by excessive rainfall is
  expected.

* WHERE...Sabana Grande and San German.

* WHEN...Until 500 PM AST.

* IMPACTS...Rises in small streams and normally dry arroyos.
  Dangerous flows over low-water crossings. Overflowing poor
  drainage areas. Some low-water crossings may become impassable.

* ADDITIONAL DETAILS...
  - At 131 PM AST, Doppler radar indicated heavy rain due to
    thunderstorms. This will cause small stream flooding, along
    the Rio Guanajibo basin. Up to 3 inches of rain have fallen.
  - Additional rainfall amounts of 1 to 2 inches are expected
    over the area. This additional rain will result in minor
    flooding.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 1817 6701 1816 6701 1816 6700 1815 6699
      1814 6697 1815 6696 1815 6695 1814 6693
      1806 6696 1807 6704 1808 6710 1811 6710
      1811 6709 1811 6708 1812 6708 1812 6709
      1817 6706


$$

ICP

Flood Advisory
National Weather Service San Juan PR
1153 AM AST Sun Apr 19 2026

PRC003-192200-
/O.NEW.TJSJ.FA.Y.0137.260419T1553Z-260419T2200Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aguada PR-
1153 AM AST Sun Apr 19 2026

...FLOOD ADVISORY IN EFFECT UNTIL 6 PM AST THIS EVENING...
...REPLACES FLOOD WARNING...

* WHAT...Flooding caused by standing water in roads along Rio
  Culebrinas.

* WHERE...Aguada.

* WHEN...Until 600 PM AST Sunday.

* IMPACTS...Minor flooding in poor drainage areas. Water over
  roadways. Some low-water crossings remain impassable.

* ADDITIONAL DETAILS...
  - At 1146 AM AST, emergency managers indicated that roads
    PR-418, PR-439, and PR-115 along Rio Culebrinas in Aguada
    remain with slow moving or standing water. These roads are
    still impassable and remain closed. This advisory will remain
    in place while the threat continues, and may be upgraded to a
    warning, if conditions warrant, with the onset of the
    afternoon convection over northwestern Puerto Rico.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 1841 6716 1840 6715 1839 6715 1839 6714
      1839 6713 1838 6713 1838 6714 1836 6715
      1839 6720


$$

ICP