Alert archive / Puerto Rico / Flash Flood Warnings in 2017
Flash Flood Warning 126, NWS JSJ
NWS JSJ issued this flash flood warning at Oct 8, 2017, 2:30 PM CDT. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 8, 2017, 2:30 PM CDT (19:30 UTC)
- Expired
- Oct 8, 2017, 5:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS JSJ
- Area
- Storm-based polygon
- Flood severity
- None
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The text
As transmitted.
552
WGCA52 TJSJ 081930
FFWSJU
PRC017-054-091-143-145-082100-
/O.NEW.TJSJ.FF.W.0126.171008T1930Z-171008T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
330 PM AST SUN OCT 8 2017
The National Weather Service in San Juan has issued a
* Flash Flood Warning for...
Vega Baja Municipality in Puerto Rico...
Florida Municipality in Puerto Rico...
Barceloneta Municipality in Puerto Rico...
Vega Alta Municipality in Puerto Rico...
Manati Municipality in Puerto Rico...
* Until 500 PM AST
* At 328 PM AST, emergency management reported flooding in Vega
Alta, Road 2 impassable between Barceloneta and Manati, and minor
flooding along road 690. Flash flooding is already occurring.
* Some locations that will experience flooding include...
Florida, Vega Alta, Manati, Vega Baja, Barceloneta, Miranda,
Pajonal, Imbery, Monserrate, Coto Norte, La Luisa, Brenas,
Tiburones, Sabana, Bufalo, Tierras Nuevas Pon, Garrochales and
Tierras Nuevas Poniente.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 1849 6631 1845 6632 1843 6630 1839 6630
1837 6632 1836 6635 1833 6636 1835 6639
1837 6640 1838 6642 1834 6659 1845 6658
1848 6659 1851 6656
$$2 follow-up statements
671
WGCA52 TJSJ 082055
FFWSJU
PRC017-054-091-143-145-082200-
/O.EXT.TJSJ.FF.W.0126.000000T0000Z-171008T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
455 PM AST SUN OCT 8 2017
The National Weather Service in San Juan has extended the
* Flash Flood Warning for...
Vega Baja Municipality in Puerto Rico...
Florida Municipality in Puerto Rico...
Barceloneta Municipality in Puerto Rico...
Vega Alta Municipality in Puerto Rico...
Manati Municipality in Puerto Rico...
* Until 600 PM AST
* At 454 PM AST, heavy rainfall continues to fall across the warned
area. Flash flooding is still ongoing.
* Some locations that will experience flooding include...
Florida, Vega Alta, Manati, Vega Baja, Barceloneta, Miranda,
Pajonal, Imbery, Monserrate, Coto Norte, La Luisa, Brenas,
Tiburones, Sabana, Bufalo, Tierras Nuevas Pon, Garrochales and
Tierras Nuevas Poniente.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 1849 6631 1845 6632 1843 6630 1839 6630
1837 6632 1836 6635 1833 6636 1835 6639
1837 6640 1838 6642 1834 6659 1845 6658
1848 6659 1851 6656
$$054
WGCA72 TJSJ 082206
FFSSJU
Flash Flood Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
606 PM AST SUN OCT 8 2017
PRC017-054-091-143-145-082216-
/O.EXP.TJSJ.FF.W.0126.000000T0000Z-171008T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vega Baja PR-Florida PR-Barceloneta PR-Vega Alta PR-Manati PR-
606 PM AST SUN OCT 8 2017
...THE FLASH FLOOD WARNING FOR VEGA BAJA...FLORIDA...BARCELONETA...
VEGA ALTA AND MANATI MUNICIPALITIES HAS EXPIRED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 1849 6631 1845 6632 1843 6630 1839 6630
1837 6632 1836 6635 1833 6636 1835 6639
1837 6640 1838 6642 1834 6659 1845 6658
1848 6659 1851 6656
$$
HernandezWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS JSJ wrote its last area forecast discussion before this flash flood warning went out at Oct 8, 12:49 PM CDT, 1 hour 41 minutes earlier.
Area forecast discussion, Oct 8, 12:49 PM CDT, 1 hour 41 minutes before
Area Forecast Discussion National Weather Service San Juan PR Issued by National Weather Service Miami FL 149 PM AST Sun Oct 8 2017 .AVIATION... Showers and thunderstorms have begun to develop across northern portions of Puerto Rico. These will likely continue to develop and intensify throughout the afternoon before diminishing later this evening. A generally quiet night is in store with another round of convection expected tomorrow. Generally E winds become more southeasterly tomorrow. VFR conditions are expected outside of showers/storms. && .PREV DISCUSSION... /issued Issued by National Weather Service Miami FL/ UPDATE... No major changes were made to the previous forecast. Still expecting passing showers this morning across the eastern portions of the area with widespread showers and thunderstorms expected over interior portions of Puerto Rico this afternoon. Locally heavy rainfall will be possible with these showers and storms, which may cause urban and small stream flooding and mudslides, especially over the interior portions of the island. && PREV DISCUSSION... /issued 519 AM AST Sun Oct 8 2017/ SHORT TERM...Sunday through Tuesday. Partly to variably cloudy skies prevailed across Puerto Rico and the US Virgin Islands during the overnight and early morning hours. Some light passing showers were detected over the local waters, with a few reaching the coastal areas. Overnight temperatures ranged from the upper 60s to mid 70s across higher elevations with upper 70s to low 8-s across lower elevations. Winds were light and variable. A moist southeast wind flow will continue to prevail across the local area today. As a result, showers and thunderstorms are expected to develop this afternoon along and north of the Cordillera Central of Puerto Rico. The afternoon convection will spread over the western interior and northwest sections of Puerto Rico. Shower and thunderstorm activity over portions of the San Juan Metro area cannot be ruled out. Soils are already saturated, therefore, any prolonged period of heavy rainfall may result in urban and stream flooding. For Monday and Tuesday, a deep upper level trough will retrograde southwestward and will be located in a favorable area to induce the development of scattered to numerous showers with scattered thunderstorms across most of Puerto Rico and the US Virgin Islands both days. This will result in period of very heavy rainfall across the region at times. With soils saturated and many rivers and small streams running above normal levels, there is a high risk of river and small stream flooding as well as mudslides in areas of steep terrain through Tuesday. LONG TERM... A mid to upper level ridge is expected to build from the east by late in the work week. Therefore, a more seasonal weather pattern is then expected. However, lingering moisture will combine with strong daytime heating and orographic lifting to produce some showers and thunderstorms mainly each afternoon across the local islands. && MARINE... Light to gentle E/SE breeze will prevail on the south side of the subtropical ridge located across the northern Atlantic. Showers and thunderstorms will occur each day as deep tropical moisture remains in place. North to northeast swells will continue to enhance local seas on the Atlantic side of the islands through Saturday night. && .PRELIMINARY POINT TEMPS/POPS... SJU 84 79 83 78 / 40 30 70 30 STT 82 80 82 80 / 30 20 50 30 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...None. VI...None. AM...None. && SHORT TERM...99 LONG TERM....99
Hazardous weather outlook, Oct 8, 5:59 AM CDT, 8 hours 31 minutes before
Perspectivas sobre condiciones peligrosas del tiempo Servicio Nacional de Meteorologia San Juan PR Emitido por Servicio Nacional de Meteorologia Miami FL 651 AM AST domingo 8 de octubre de 2017 AMZ710>745-PRZ001>013-091100- San Juan y Vecindad-Noreste-Sureste-Este Interior-Norte Central- Interior Central-Ponce y Vecindad-Noroeste-Oeste Interior- Mayaguez y Vecindad-Suroeste-Culebra-Vieques- Aguas cercanas y lejanas a la costa del Atlantico y Caribe- 651 AM AST domingo 8 de octubre de 2017 Esta perspectiva sobre las condiciones peligrosas del tiempo es para Puerto Rico y las aguas costeras adyacentes del Atlantico. .Dia Uno...Hoy y Esta Noche Aguaceros y tronadas con lluvias fuertes y vientos en rafagas breves son posibles principalmente a traves del centro y oeste interior de Puerto Rico esta tarde. Cualquier lluvia fuerte adicional podria causar impactos adicionales de inundaciones repentinas incluyendo deslizamientos, especialmente sobre porciones del interior de la isla. Existe un riesgo moderado de corrientes marinas a lo largo de la costa norte de Puerto Rico. Oleaje de hasta 6 pies es posible sobre las aguas lejanas a la costa del Atlantico al norte de PuertoRico, principalmente bajo una marejada del noreste. .Dias Dos a Siete...lunes a sabado La combinacion de onda tropical con un disturbio en las capas altas aumentara el potencial de inundaciones fuertes sobre Puerto Rico el lunes y martes, lo que causara impactos adicionales de inundaciones repentinas, incluyendo deslizamientos. Es probable que un riesgo elevado de corrientes marinas continue temprano la semana proxima a lo largo de la costa norte. .Comunicado sobre informacion reportada por observadores... No se anticipa activacion amplia de observadores, sin embargo, se les exhorta a los observadores individuales a reportar inundaciones o corrientes marinas al Servicio Nacional de Meteorologia en San Juan. AMZ715-725-VIZ001-002-091100- San Tomas, San John e Islas Adyacentes-Santa Cruz- Aguas cercanas del Atlantico y aguas costeras adyacentes del Caribe- 651 AM AST domingo 8 de octubre de 2017 Esta perspectiva sobre las condiciones del tiempo peligrosas es para Puerto Rico y las aguas costeras adyacentes del Atlantico. .Dia Uno...Hoy y Esta Noche Existe un riesgo moderado de corrientes marinas para la mayoria de las playas de Santa Cruz hoy. .Dias Dos a Siete...lunes a sabado Es probable que un riesgo elevado de corrientes marinas continue hasta el domingo para Santa Cruz. .Comunicado sobre informacion reportada por observadores... Activacion de observadores no sera necesaria.
In the hours before
Special weather statement, Oct 8, 12:43 PM CDT, 1 hour 47 minutes before
Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
143 PM AST SUN OCT 8 2017
PRZ001-005-006-081830-
San Juan and Vicinity-North Central-Central Interior-
143 PM AST SUN OCT 8 2017
...A STRONG THUNDERSTORM WILL AFFECT VEGA BAJA...NORTHWESTERN SAN
JUAN...NORTHEASTERN MOROVIS...GUAYNABO...NORTHEASTERN NARANJITO...
VEGA ALTA...DORADO...BAYAMON...NORTHERN COROZAL...TOA BAJA...CATANO
AND TOA ALTA MUNICIPALITIES...
At 143 PM AST, a strong thunderstorm was located over Rio Lajas, or
over Toa Alta, moving east at 10 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
San Juan, Guaynabo, Sabana Seca, Catano, Toa Baja, Vega Alta,
Corozal, Naranjito, Morovis, Toa Alta, Vega Baja, Bayamon, Dorado,
Miranda, San Jose, H. Rivera Colon, Galateo, Monserrate, Candelaria
Arenas and Brenas.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 1849 6618 1847 6616 1849 6613 1848 6608
1830 6610 1830 6641 1851 6641
TIME...MOT...LOC 1743Z 267DEG 8KT 1841 6627Special weather statement, Oct 8, 12:46 PM CDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
146 PM AST SUN OCT 8 2017
PRZ005-006-009-081830-
North Central-Central Interior-Western Interior-
146 PM AST SUN OCT 8 2017
...A STRONG THUNDERSTORM WILL AFFECT WESTERN VEGA BAJA...FLORIDA...
BARCELONETA...NORTHWESTERN MOROVIS...ARECIBO...NORTH CENTRAL
JAYUYA...NORTHERN CIALES...NORTHEASTERN UTUADO AND MANATI
MUNICIPALITIES...
At 146 PM AST, a strong thunderstorm was located over Pajonal, or
over Florida. the storm is nearly stationary.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
Arecibo, Florida, Manati, Barceloneta, Ciales, Morovis, Utuado, Vega
Baja, Pajonal, Bajadero, La Alianza, Imbery, Barahona, Coto Norte,
Franquez, La Luisa, Tiburones, Animas, Bufalo and Tierras Nuevas Pon.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 1848 6648 1849 6644 1849 6641 1830 6641
1826 6670 1849 6670 1851 6661
TIME...MOT...LOC 1746Z 089DEG 4KT 1840 6657Special weather statement, Oct 8, 12:58 PM CDT, 1 hour 32 minutes before
Comunicado Especial sobre las Condiciones del Tiempo Servicio Nacional de Meteorologia San Juan PR 143 PM AST domingo 8 de octubre de 2017 PRZ001-005-006-081830- San Juan y Vecindad-Norte Central-Central Interior- 143 PM AST sabado 7 de octubre de 2017 ...UNA TRONADA FUERTE AFECTARA LOS SIGUIENTES MUNICIPIOS DE PUERTO RICO...VEGA BAJA...SAN JUAN...MOROVIS...GUAYNABO...NARANJITO...VEGA ALTA...DORADO...BAYAMON...COROZAL...TOA BAJA...CATANO Y TOA ALTA... A las 1:43 PM AST, una fuerte tronada estaba localizada sobre Rio Lajas, o sobre Toa Alta, moviendose hacia el este a 10 mph. Vientos en rafagas de 30 mph son posibles con esta tronada. Lugares que seran afectados incluyen...San Juan, Guaynabo, Sabana Seca, Catano, Toa Baja, Vega Alta, Corozal, Naranjito, Morovis, Toa Alta, Vega Baja, Bayamon, Dorado, Miranda, San Jose, H. Rivera Colon, Galateo, Monserrate, Candelaria Arenas y Brenas. Lluvias torrenciales tambien estan ocurriendo con estas tormentas, y podrian causar inundaciones localizdas. No intente conducir su vehiculo a traves de carreteras inundadas.
Special weather statement, Oct 8, 1:00 PM CDT, 1 hour 30 minutes before
Comunicado Especial sobre las Condiciones del Tiempo Servicio Nacional de Meteorologia San Juan PR 146 PM AST domingo 8 de octubre de 2017 PRZ005-006-009-081830- Norte Central-Central Interior-Western Interior- 146 PM AST sabado 7 de octubre de 2017 ...UNA TRONADA FUERTE AFECTARA LOS SIGUIENTES MUNICIPIOS DE PUERTO RICO...VEGA BAJA...FLORIDA...BARCELONETA...MOROVIS...ARECIBO... JAYUYA...CIALES...UTUADO Y MANATI... A las 1:46 PM AST, una fuerte tronada estaba localizada sobre Pajonal, o sobre Florida. La tormenta esta casi estacionaria. Vientos en rafagas de 30 mph son posibles con esta tronada. Lugares que seran afectados incluyen...San Juan, Guaynabo, Sabana Seca, Catano, Toa Baja, Vega Alta, Corozal, Naranjito, Morovis, Toa Alta, Vega Baja, Bayamon, Dorado, Miranda, San Jose, H. Rivera Colon, Galateo, Monserrate, Candelaria Arenas y Brenas. Lluvias torrenciales tambien estan ocurriendo con estas tormentas, y podrian causar inundaciones localizdas. No intente conducir su vehiculo a traves de carreteras inundadas.
Special weather statement, Oct 8, 1:25 PM CDT, 1 hour 5 minutes before
Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
225 PM AST SUN OCT 8 2017
PRZ001-002-004-005-081915-
San Juan and Vicinity-North Central-Northeast-Eastern Interior-
225 PM AST SUN OCT 8 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CAROLINA...
NORTHWESTERN LOIZA...NORTH CENTRAL CAGUAS...NORTHEASTERN NARANJITO...
BAYAMON...EASTERN TOA BAJA...TRUJILLO ALTO...SAN JUAN...NORTHWESTERN
GURABO...GUAYNABO...NORTHEASTERN DORADO...CATANO AND SOUTHEASTERN TOA
ALTA MUNICIPALITIES...
At 225 PM AST, a strong thunderstorm was located over Catano, moving
east at 5 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
San Juan, Trujillo Alto, Carolina, Guaynabo, Sabana Seca, Catano,
Bayamon, Levittown, Candelaria Arenas and Candelaria.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 1847 6597 1847 6596 1830 6597 1831 6621
1848 6621 1849 6617 1847 6616 1849 6614
1849 6613
TIME...MOT...LOC 1825Z 270DEG 6KT 1842 6614The office that day
Everything else NWS JSJ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 7:40 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 7, 8:07 PM CDT | Areal Flood Warning | JSJ | 3 hr | |
| Oct 7, 8:13 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 7, 10:01 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 8, 12:43 PM CDT | Special Weather Statement | JSJ | 47 min | |
| Oct 8, 12:46 PM CDT | Special Weather Statement | JSJ | 44 min | |
| Oct 8, 1:25 PM CDT | Special Weather Statement | JSJ | 50 min | |
| Oct 8, 2:13 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 8, 2:38 PM CDT | Special Weather Statement | JSJ | 52 min | |
| Oct 8, 2:47 PM CDT | Special Weather Statement | JSJ | 43 min | |
| Oct 8, 3:57 PM CDT | Areal Flood Advisory | JSJ | 5 hr | |
| Oct 8, 4:19 PM CDT | Flash Flood Warning | JSJ | 86 min | |
| Oct 8, 4:33 PM CDT | Flash Flood Warning | JSJ | 87 min |
Nearby
Flash Flood Warnings in Puerto Rico, 2017Every flash flood warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.