National Weather Service United States Department of Commerce

Severe Thunderstorms and Flash Flooding Threats Continue Saturday in the Plains and Midwest; Hot Holiday for the Southeast

Another day with severe storms, some significant with very large hail and tornadoes, and very heavy rain are expected through Saturday across the Plains and Midwest. In the Ohio Valley, isolated severe thunderstorms with damaging winds and large hail is possible. Heavy rain may produce flooding for the interior Northeast and in the northern California mountains. Building heat wave in the Southeast Read More >

Hydrology and River Information


Understanding Floods

Urban and Small Stream Flood Advisory

 

            Carolina, PR

Urban and Small Stream Advisory

Inundaciones Urbanas y de Pequeños Riachuelos

What is it? Flooding of small streams, streets and low lying areas.

What to do? Stay away from areas that are prone to flooding.  Stay clear of rapidly moving water.

¿Qué es? Inundaciones de quebradas, calles y áreas bajas.

¿Qué hacer? Mantenerse lejos de áreas propensas a inundaciones.  Manténgase lejos de agua en movimiento.

 

Flash Flood Warning

            Utuado, PR

Flash Flood Warning

Avisos de Inundaciones Repentinas

What is it? Flood impacts are occurring or imminent.

What to do? Stay alert for inundated roadways and follow instructions from authorities. Additional impacts include structures that could become flooded and need to be evacuated.

¿Qué es? Inundaciones están ocurriendo o son inminentes.

¿Qué hacer? Manténgase informado sobre carreteras inundadas y siga las instrucciones de las autoridades. Impactos adicionales incluyen estructuras que podrían inundarse y podrían ser evacuadas.

 

Flash Flood Emergency

                         Comerio, PR

Flash Flood Emergency

Emergencia de Inundaciones Repentinas

What is it? Flash flood situations that represent extreme danger.

What to do? Immediately reach higher ground by any means possible.

¿Qué es? Inundaciones repentinas que representan extremo peligro.

¿Qué hacer? Muévase a terreno alto inmediatamente.

 

Flash Flood Watch

Flash Flood Watch

Vigilancia Inundaciones Repentinas

What is it? Flooding is possible – typically within 6 to 48 hours.

What to do? Stay informed and prepare for water rises along rivers that could affect nearby roads and buildings.

¿Qué es? Inundaciones son posibles típicamente dentro de 6 a 48 horas.

¿Qué hacer? Mantenerse informado y prepararse para aumento de niveles de ríos, que pudieran alcanzar carreteras y estructuras.

 


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Observed Rainfall

1-day rainfall 7-day rainfall 14-day rainfall

 

Departure from Normal Rainfall

7-day rainfall deficit 30-day rainfall deficit 60-day rainfall deficit

 

Advanced Hydrologic Prediction Services (AHPS)


Rainfall Forecast

24 hr Rainfall Forecast Total Today

 

24 hr Rainfall Forecast Total Tomorrow

Soil Saturation

Latest Volumetric Soil Moisture Image

 

Latest Soil Saturation

 

Puerto Rico Agricultural Water Management


Streamflows Statistics

Today 7- Day Average

 

14- Day Average  28- Day Average

 

United States Geological Survey (USGS) Water Watch


Flood Conditions

Water Data by Puerto Rico River Basin Grouping

Río Cibuco-Guajataca Basin

Rio Cibuco Rio Manati near Ciales Rio Manati near Manati
 
Rio Grande Arecibo blw Utuado Lago Dos Bocas Rio Grande Arecibo abv Arecibo

 

Río Patillas-Loco Basin

Rio Coamo Rio Cerrillos Rio Portugues

 

Río Guanajibo-Culebrinas Basin

Rio Grande de Añasco Rio Culebrinas near Moca Rio Culebrinas Aguada
 
Rio Rosario Rio Guanajibo

 

Río de la Plata-Maunabo Basin

Rio de La Plata nr Toa Alta Rio de la Plata blw La Plata Dam Rio de La Plata Aibonito
 
Rio Grande de Loiza at Aibonito Rio Grande de Loiza at Caguas Lago Loiza nr Trujillo Alto
 
Rio Piedras at Hato Rey Rio Gurabo

 

Advanced Hydrologic Prediction Services (AHPS)


Flood Threat

 

**En Español**                                                      


000
FLCA42 TJSJ 250907
HWOSJU

Hazardous Weather Outlook
National Weather Service San Juan PR
507 AM AST Sat May 25 2019

AMZ710>745-PRZ001>013-261000-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Nortwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
507 AM AST Sat May 25 2019

This Hazardous Weather Outlook is for Puerto Rico and the adjacent
Atlantic Coastal Waters.

.Day One...Today and Tonight

.Thunderstorms...There is a chance of thunderstorms with heavy
rainfall and brief gusty winds this afternoon across portions of
central, north central, western and northwestern Puerto Rico, which
could produce strong gusty winds.

.Flooding...Heavy rains could lead to urban and small stream
flooding.

.Rip Currents...There is a moderate risk of rip currents for
the northwest to northeast beaches of Puerto Rico as well as the
northern beaches of Vieques and Culebra.

.Days Two through Seven...Sunday through Friday

Showers and thunderstorms are expected each afternoon for the next
several days. At least some urban and small stream flooding is tom be
expected in the afternoon hours each day. Moderate risk of rip
currents is expected over the next several days as well.

.Spotter information statement...

Widespread spotter activation is not anticipated, however individual
spotter are encouraged to report rip currents to the National Weather
Service in San Juan.

$$

AMZ715-725-VIZ001-002-261000-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
507 AM AST Sat May 25 2019

This Hazardous Weather Outlook is for the U.S. Virgin Islands and the
adjacent Coastal Waters.

.Day One...Today and Tonight

.Rip Currents...There is a moderate risk of rip currents for
northern beaches of Saint Thomas.

.Days Two through Seven...Sunday through Friday

Moderate risk of rip currents is possible for the beaches of north
Saint Thomas for the next several days.

.Spotter information statement...

Widespread spotter activation is not anticipated, however individual
spotter are encouraged to report rip currents to the National Weather
Service in San Juan.

$$