Flash Flood Warning 70, NWS JSJ

449 
WGCA52 TJSJ 261920
FFWSJU
VIC020-030-262230-
/O.EXT.TJSJ.FF.W.0070.000000T0000Z-221026T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
320 PM AST Wed Oct 26 2022

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Saint John County in Virgin Islands...
  Saint Thomas County in Virgin Islands...

* Until 630 PM AST.

* At 320 PM AST, Doppler radar and automated rain gauges indicated 
  thunderstorms and bands of heavy rains continued to stream 
  northwards across the warned area. Between 1 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding and excessive runoff caused by
           thunderstorms and shower activity.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas. Mudslides and
           rock fall possible in areas of steep terrain.

* Some locations that will experience flash flooding include...
  Charlotte Amalie West, St John, Anna's Retreat, Charlotte Amalie 
  East, Charlotte Amalie and Cruz Bay.

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 1834 6509 1841 6505 1838 6506 1838 6496
      1836 6493 1841 6491 1835 6489 1837 6475
      1833 6465 1830 6470 1835 6487 1830 6481
      1832 6488 1827 6489 1832 6496 1834 6494

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

RAM

094 
WGCA72 TJSJ 262225
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
625 PM AST Wed Oct 26 2022

VIC020-030-262235-
/O.EXP.TJSJ.FF.W.0070.000000T0000Z-221026T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Saint John VI-Saint Thomas VI-
625 PM AST Wed Oct 26 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 630 PM AST THIS EVENING FOR 
SAINT JOHN AND SAINT THOMAS COUNTIES...

Flood waters continue to recede and the heavy rain has ended. 
Flooding is no longer expected to pose a threat at this time. 
However please continue to heed to any road closures and remain 
alert to ponded water on roads especially during the nighttime.

A Flood Watch remains in effect until 800 PM AST Thursday for 
portions of Puerto Rico and U.S. Virgin Islands as intervals of 
additional heavy rains will remain possible later tonight and early 
Thursday.

LAT...LON 1834 6509 1841 6505 1838 6506 1838 6496
      1836 6493 1841 6491 1835 6489 1837 6475
      1833 6465 1830 6470 1835 6487 1830 6481
      1832 6488 1827 6489 1832 6496 1834 6494

$$

RAM

Area Forecast Discussion
National Weather Service San Juan PR
1128 AM AST Wed Oct 26 2022

...New UPDATE, AVIATION, MARINE...

.UPDATE...
Issued at 1121 AM AST Wed Oct 26 2022

A Flash Flood Watch continues in effect through Thursday evening
due to the interaction between an upper-level trough and a
tropical wave. Since midnight the Doppler Radar estimated rainfall
totals ranged between 1 and 3 inches, with local maxima between 4
and 5 inches. We received several flooding reports, mainly across
the eastern third of Puerto Rico and near the Rio Guanajibo.

&&

.SYNOPSIS...
Issued at 457 AM AST Wed Oct 26 2022

An upper level trough has created an active band of convergence
with showers and thunderstorms that will move across Puerto Rico
today and into the U.S. Virgin Islands. A tropical wave will also
move into the area from the east creating very wet conditions over
most of the area. A flash Flood Watch is in effect for Puerto Rico
and the U.S. Virgin Islands. Conditions will improve somewhat
through the rest of the week but both Puerto Rico and the U.S.
Virgin Islands are expected to be wet through at least Friday,
with showers and thunderstorms in rich moisture carrying on well
into next week.

&&

.SHORT TERM...Today through Friday...

The short term forecast remains on track. An upper-level low and the
associated surface trough in combination with a tropical wave will
maintain wet and unstable weather conditions today and tomorrow.
This will cause widespread shower activity along with thunderstorms
across the region. As a result, a Flash Flood Watch was issued for
all of Puerto Rico and the U.S. Virgin Islands, where urban and
flash flooding impacts are likely, including mudslides in areas of
steep terrain. With the activity of today and tomorrow, rainfall
accumulations will range between 6 and 8 inches with isolated
maximum amounts of 10 inches over the eastern third of Puerto Rico
and between 2 to 6 inches, elsewhere. Residents and visitors
should remain alert for flooding in urban areas and water surges
in the local rivers.

On Friday, as the upper-level low and associated surface trough
moves northward, the wind pattern at the surface will turn from the
southeast, setting up low-level convergence over the area. This will
promote moisture pooling across the forecast area with plenty of
tropical moisture increasing precipitable water values above
climatological normals. Therefore, expect an active weather day,
especially in the afternoon hours with enhancement of local and
diurnal effects. Continued flood impacts are also likely on
Friday.

.LONG TERM...Saturday through Thursday...

The upper level trough to our northwest will move northeast
Saturday and Sunday, but some influence will still be felt. As it
goes by, the 700 mb high in the central Atlantic will be able to
push some drier air into the area and this will reduce the over
all precipitable water values--though not below 2 inches. But, a
tropical wave currently near 50 west and 8 degrees north will move
into the southeastern Caribbean Sea on Friday and there is a fair
probability at this time that it will initiate cyclogenesis near
the coast of Venezuela. By Saturday night, the southeast flow
diverted around this low will already be bringing another surge of
moisture into the area that will continue the wet pattern through
at least Monday night. Currently, the GFS does not develop this
low substantially until Tuesday night or Wednesday and this will
allow modestly moist air to replace the supercharged tropical
airmass that the system will have brought up Saturday night
through Monday. Actually, with one minor exception Sunday morning,
precipitable water values will remain above 2 inches through
Tuesday morning of next week where normal is around 1.7 inches.
This continued moisture in modestly unstable air (500 mb
temperatures remain between minus 5 and minus 6 degrees the whole
time) will bring scattered showers and thunderstorms with local
urban and small stream flooding each day in an easterly windflow
pattern. Because of the already saturated soils, flooding and
mudslides will continue to be a risk throughout the period.

&&

.LONG TERM...Saturday through Thursday...

The upper level trough to our northwest will move northeast
Saturday and Sunday, but some influence will still be felt. As it
goes by, the 700 mb high in the central Atlantic will be able to
push some drier air into the area and this will reduce the over
all precipitable water values--though not below 2 inches. But, a
tropical wave currently near 50 west and 8 degrees north will move
into the southeastern Caribbean Sea on Friday and there is a fair
probability at this time that it will initiate cyclogenesis near
the coast of Venezuela. By Saturday night, the southeast flow
diverted around this low will already be bringing another surge of
moisture into the area that will continue the wet pattern through
at least Monday night. Currently, the GFS does not develop this
low substantially until Tuesday night or Wednesday and this will
allow modestly moist air to replace the supercharged tropical
airmass that the system will have brought up Saturday night
through Monday. Actually, with one minor exception Sunday morning,
precipitable water values will remain above 2 inches through
Tuesday morning of next week where normal is around 1.7 inches.
This continued moisture in modestly unstable air (500 mb
temperatures remain between minus 5 and minus 6 degrees the whole
time) will bring scattered showers and thunderstorms with local
urban and small stream flooding each day in an easterly windflow
pattern. Because of the already saturated soils, flooding and
mudslides will continue to be a risk throughout the period.

&&

.AVIATION...
(18Z TAFS)
Issued at 1121 AM AST Wed Oct 26 2022

Unsettled weather conditions will continue across the local
region. Therefore, MVFR conditions across local terminals will
remain possible throughout this afternoon. JSJ/IST/ISX can expect
TSRA/SHRA at times, especially between 26/15-20z. Another round
with +TSRA/+SHRA will return after 27/04z, and may impact JPS.
Winds will continue from the E/ESE at 10-15 knots and locally
higher near SHRA/TSRA.

&&

.AVIATION...
(06Z TAFS)
Issued at 457 AM AST Wed Oct 26 2022
Poor weather conditions will persist through the forecast period.
Sct-Num SHRA and TSRA will continue thru 26/18z across the most
of PR and the USVI resulting in periods of MVFR conds across all
TAF sites. Additionally, +SHRA with VCTS & TSRA are expected over
the north coast of PR affecting the regional waters and the local
flying area. SFC winds will remain from the E-SE at 10 kt with
higher gusts near the thunderstorms, increasing to 10- 15 kt
around 26/14Z with sea breeze variations. Maximum winds 30-45 kt veering
from SSW at FL220 to WSW at FL500. Strongest winds at FL350, 400
and 470.

&&

.MARINE...
Issued at 1121 AM AST Wed Oct 26 2022

Mariners should exercise caution across the local waters due to
thunderstorm activity. This activity may produce frequent
lightning, sudden waterspout and strong winds.

&&

.MARINE...
Issued at 457 AM AST Wed Oct 26 2022

Marine conditions will remain generally southeast 10 to 15 knots,
but will be variable around showers and thunderstorms and in the
vicinity of a north-south oriented trough currently over the
western third of Puerto Rico. This trough will move across Puerto
Rico and the waters north and south of it today and stall around
the U.S. Virgin Islands tonight through Friday. Locally stronger
winds will bring seas up to 6 feet in the activity. Winds turn
toward the east on Saturday as the trough returns to the west will
and remain easterly through Wednesday.

&&

.HYDROLOGY...
Issued at 457 AM AST Wed Oct 26 2022

A very wet period across Puerto Rico and the U.S. Virgin Islands
has begun. Rainfall amounts over the local waters have exceeded 5
inches in the last 12 hours, and since midnight, 3.5 inches have
fallen over the eastern part of Guayama. Much of the south coast
has received over one half inch. Many areas this week have
received considerable rainfall and will be subject to debris flows
including boulders that can drop onto roads without warning.
Residents are urged to exercise extreme caution if they must
travel today and tomorrow. For more details please see the Flash
Flood Watch issued by the National Weather Service.

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...Flood Watch through Thursday evening for PRZ001>013.

VI...Flood Watch through Thursday evening for VIZ001-002.

&&

SHORT TERM...CAM
LONG TERM....MRR
PUBLIC DESK...CVB

Perspectivas sobre las Condiciones Peligrosas del Tiempo
Servicio Nacional de Meteorologia en San Juan PR
545 AM AST miercoles 26 de octubre de 2022

AMZ710>745-PRZ001>013-260915-
San Juan y Vecindad-Noreste-Sureste-
Este Interior-Norte Central-Interior Central-Ponce y Vecindad-
Noroeste-Oeste Interior-Mayaguez y Vecindad-Suroeste-Culebra-Vieques-
Las aguas costeras cercanas y lejanas a la costa del Atlantico y del
Caribe-
545 AM AST miercoles 26 de octubre de 2022

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Puerto Rico y las aguas costeras adyacentes.

.Rayos...Tronadas de aisladas a dispersas se esperan a traves de las
islas. Este atento a las tronadas en su area y este preparado para
refugiarse.

.Lluvia Excesiva...Una Vigilancia de Inundaciones repentinas esta en
efecto hasta el jueves temprano en la noche. Inundaciones de areas
urbanas, carreteras, riachuelos y arroyos. Inundaciones repentinas
aisladas son posibles.

. Vientos...Se esperan condiciones ventosas a traves de las aguas
locales y cerca de Culebra. Asegure objetos que esten sueltos.

.Corrientes Marinas...Las corrientes marinas amenazantes a la vida
son posibles en las zonas de olas rompientes, particularmente a
traves de la costa norte, sureste, este y oeste de Puerto Rico, al
igual que las playas en Vieques y Culebra.

.DIAS DOS A SIETE...jueves a martes

El peligro por inundaciones y rayos continua elevado el jueves. Por
lo tanto, sigue en efecto una Vigilancia de inundaciones repentinas
hasta el jueves temprano en la noche. Luego se espera que prevalezca
un riesgo elevado a traves de sectores del interior y oeste de
Puerto Rico durante el periodo. El viento y las condiciones
maritimas se espera aumenten ligeramente el jueves. Los indices de
calor podrian llegar a los 102 grados el sabado al domingo a traves
del norte central de la isla.

.Comunicado sobre informacion reportada por observadores...

Se recomienda a los observadores a reportar. Por favor, brinde toda
la informacion relacionada a inundaciones al Servicio Nacional de
Meteorologia.

AMZ715-725-VIZ001-002-250845-
San Tomas, San John e Islas Adyacentes-
Santa Cruz-Aguas cercanas del Atlantico y aguas costeras adyacentes
del Caribe-
545 AM AST miercoles 26 de octubre de 2022

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Islas Virgenes Estadounidenses y las aguas costeras adyacentes.

.DIA UNO...Hoy y Esta Noche

.Rayos... Se esperan tronadas de aisladas a dispersas a traves de
las islas el dia de hoy . Revise su plan para sus actividades al
aire libre. Este atento a las tronadas en su area y este preparado
para refugiarse.

.Lluvia Excesiva...Una Vigilancia de Inundaciones repentinas esta en
efecto hasta el jueves temprano en la noche. Inundaciones de areas
urbanas, carreteras, riachuelos y arroyos. Inundaciones repentinas
aisladas son posibles.

. Vientos...Se esperan condiciones ventosas a traves de las aguas
locales. Asegure objetos que esten sueltos.

.Corrientes Marinas...Las corrientes marinas amenazantes a la vida
son posibles en las zonas de olas rompientes, particularmente a
traves de las playas orientadas el extremo este de Santa Cruz.

.DIAS DOS A SIETE...jueves a martes

El peligro por inundaciones y rayos continua elevado el jueves. Por
lo tanto, sigue en efecto una Vigilancia de inundaciones repentinas
hasta el jueves temprano en la noche. El viento y las condiciones
maritimas se espera aumenten ligeramente el jueves.
.Comunicado sobre informacion reportada por observadores...

Se recomienda a los observadores a reportar. Por favor, brinde toda
la informacion relacionada a inundaciones al Servicio Nacional de
Meteorologia.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
1056 AM AST WED OCT 26 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1011 AM     HEAVY RAIN       4 ENE ESPERANZA         18.12N 65.42W
10/26/2022  M2.59 INCH       VIEQUES            PR   MESONET

            MESONET STATION VIEP4 VIEQUES.

1000 AM     HEAVY RAIN       2 ENE YAUREL            18.03N 66.03W
10/26/2022  M2.47 INCH       PATILLAS           PR   MESONET

            MESONET STATION PATP4 1.7 E YAUREL.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
1139 AM AST WED OCT 26 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     FLOOD            DAGUAO                  18.22N 65.69W
10/26/2022                   NAGUABO            PR   EMERGENCY MNGR

            THE EMERGENCY MANAGER FROM HUMACAO ZONE
            REPORTED THAT PR-3 WAS FLOODED BY BA.
            DAGUAO.

&&

CVB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
1145 AM AST WED OCT 26 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     FLASH FLOOD      2 W NAGUABO             18.21N 65.76W
10/26/2022                   NAGUABO            PR   EMERGENCY MNGR

            EMERGENCY MANAGERS FROM HUMACAO ZONE
            REPORTED THAT A SECTION OF PR-31 IN BA. LA
            PITINA IS IMPASSABLE CLOSE TO THE EXIT #22
            IN PR-53.

&&

CVB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
1150 AM AST WED OCT 26 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 AM     FLOOD            2 WNW DAGUAO            18.24N 65.71W
10/26/2022                   NAGUABO            PR   EMERGENCY MNGR

            EMERGENCY MANAGERS FROM HUMACAO ZONE
            REPORTED THAT PR-973 IN BA. MARIANA WAS
            FLOODED.

&&

CVB