Alert archive / Puerto Rico / Flash Flood Warnings in 2017
Flash Flood Warning 124, NWS JSJ
NWS JSJ issued this flash flood warning at Oct 7, 2017, 2:14 PM CDT. It was in force for 4 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 7, 2017, 2:14 PM CDT (19:14 UTC)
- Expired
- Oct 7, 2017, 6:15 PM CDT
- In force
- 4 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.
624
WGCA52 TJSJ 071914
FFWSJU
PRC001-073-141-072315-
/O.NEW.TJSJ.FF.W.0124.171007T1914Z-171007T2315Z/
/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
314 PM AST SAT OCT 7 2017
The National Weather Service in San Juan has issued a
* Flash Flood Warning for...
Jayuya Municipality in Puerto Rico...
Utuado Municipality in Puerto Rico...
Adjuntas Municipality in Puerto Rico...
* Until 715 PM AST
* At 313 PM AST, emergency management reported flash flooding across
the warned area. Flash flooding is already occurring including the
collapse of Carretera 10 near Utuado. Water was also reported to
be entering homes near Urban San Jose in Utuado and around
Adjuntas.
* Some locations that will experience flooding include...
Jayuya, Adjuntas, Utuado and Cayuco.
Excessive rainfall over the warned area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation
and other loose materials.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 1832 6672 1833 6662 1832 6658 1824 6656
1820 6653 1818 6653 1815 6655 1817 6659
1815 6663 1816 6666 1813 6668 1813 6672
1811 6673 1813 6677 1813 6680 1819 6684
1824 6682 1832 6682 1832 6677 1835 6674
$$
RAG1 follow-up statement
480
WGCA72 TJSJ 071951
FFSSJU
Flash Flood Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
351 PM AST SAT OCT 7 2017
PRC001-073-141-072315-
/O.CON.TJSJ.FF.W.0124.000000T0000Z-171007T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jayuya PR-Utuado PR-Adjuntas PR-
351 PM AST SAT OCT 7 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM AST FOR
JAYUYA...UTUADO AND ADJUNTAS MUNICIPALITIES...
At 350 PM AST, emergency management reported flash flooding in
Utuado and Adjuntas. Carretera 10 has collapsed in front of
Ferreteria Amador at kilometer 42.0 and both directions of the
highway are closed as they are impassable. Flood waters have also
been reported to be entering homes in the warned area.
Excessive rainfall over the warned area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation and
other loose materials.
Some locations that will experience flooding include...
Jayuya, Adjuntas, Utuado and Cayuco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 1832 6672 1833 6662 1832 6658 1824 6656
1820 6653 1818 6653 1815 6655 1817 6659
1815 6663 1816 6666 1813 6668 1813 6672
1811 6673 1813 6677 1813 6680 1819 6684
1824 6682 1832 6682 1832 6677 1835 6674
$$What 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 7, 12:44 PM CDT, 1 hour 30 minutes earlier.
Area forecast discussion, Oct 7, 12:44 PM CDT, 1 hour 30 minutes before
Area Forecast Discussion National Weather Service San Juan PR Issued by National Weather Service Miami FL 144 PM AST Sat Oct 7 2017 .AVIATION... A cluster of thunderstorms has developed across western Puerto Rico and will continue to slowly push westward throughout the afternoon and evening. Gusty winds near 30 knots, frequent lightning, and reduced visibilities/ceilings are possible with these storms. Another round of showers/thunderstorms are likely across the main island of Puerto Rico tomorrow, primarily after 15Z. Outside of the convection, VFR conditions are expected throughout the period. && PREV DISCUSSION... /issued Issued by National Weather Service Miami FL/ SHORT TERM...Saturday through Monday Partly to variably cloudy skies prevailed across Puerto Rico and the US Virgin Islands during the overnight and early morning hours. Overnight temperatures ranged from the upper 60s to mid 70s across higher elevations with upper 70s to low 80s across lower elevations. Winds were light and variable. Although low level moisture is expected to erode somewhat during the weekend under a weak mid to upper level ridge, still expect induced showers and thunderstorms across portions of Puerto Rico each afternoon. The aforementioned activity is expected over central and northwest Puerto Rico as well as portions of the San Juan Metro Area. In addition, overnight passing showers across windward areas cannot be ruled out. Soils are already saturated, therefore,. any prolonged period of heavy rainfall may result in urban and stream flooding. LONG TERM...Tuesday through Sunday. A broad mid to upper level trough is expected to prevail across the central Atlantic and into the eastern Caribbean Monday through Wednesday. This feature will allow deep tropical moisture to pool across the forecast area. As the trough aloft moves westward, a mid to upper level ridge is then expected to build from the east. Therefore, Monday through at least Wednesday under trofiness aloft and plenty of tropical moisture, expect unsettled weather conditions across the forecast area with periods of heavy rainfall. Soils are already saturated and many of the rivers and small streams are running above normal levels. Therefore, there is a high risk of river and small stream flooding as well as mudslides in areas of steep terrain early next week. A more seasonal weather pattern is then expected by the end of the workweek and into the weekend as a ridge pattern builds aloft. 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 81 89 81 88 / 30 40 30 70 STT 82 85 82 84 / 30 30 30 50 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...None. VI...None. AM...None. && SHORT TERM...99 LONG TERM....99
Hazardous weather outlook, Oct 7, 7:44 AM CDT, 6 hours 30 minutes before
Perspectivas sobre condiciones peligrosas del tiempo Servicio Nacional de Meteorologia San Juan PR Emitido por Servicio Nacional de Meteorologia Miami FL 816 AM AST sabado 7 de octubre de 2017 AMZ710>745-PRZ001>013-081230- 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- 816 AM AST sabado 7 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. 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. Operadores de embarcaciones pequenas deben ejercer precaucion. .Dias Dos a Siete...domingo a viernes Aguaceros y tronadas son posibles cada dia con lluvias fuertes localmente temprano la semana proxima, lo cual podria causar impactos adicionales de inundaciones repentinas. 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-VIZ001-002-081230- San Tomas, San John e Islas Adyacentes-Santa Cruz-Aguas cercanas del Atlantico y aguas costeras adyacentes del Caribe- 816 AM AST sabado 7 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...domingo a viernes 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 7, 12:55 PM CDT, 1 hour 19 minutes before
Special Weather Statement National Weather Service San Juan PR Issued by National Weather Service Miami FL 155 PM AST SAT OCT 7 2017 PRZ005-006-009-071845- North Central-Central Interior-Western Interior- 155 PM AST SAT OCT 7 2017 ...A STRONG THUNDERSTORM WILL AFFECT FLORIDA...MOROVIS...VEGA ALTA... EASTERN ARECIBO...CENTRAL OROCOVIS...VEGA BAJA...BARCELONETA... NORTHWESTERN BARRANQUITAS...NORTHERN JAYUYA...CIALES...WESTERN COROZAL...EASTERN UTUADO AND MANATI MUNICIPALITIES... At 155 PM AST, a strong thunderstorm was located over Ciales, moving west at 25 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Jayuya, Vega Alta, Ciales, Morovis, Florida, Manati, Vega Baja, Barceloneta, Orocovis, Corozal, Miranda, Pajonal, La Alianza, Barahona, Monserrate, Coto Norte, Franquez, Bajadero, Imbery and La Luisa. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 1844 6632 1822 6633 1819 6667 1847 6669 TIME...MOT...LOC 1755Z 089DEG 23KT 1832 6649
Special weather statement, Oct 7, 12:57 PM CDT, 1 hour 17 minutes before
Special Weather Statement National Weather Service San Juan PR Issued by National Weather Service Miami FL 157 PM AST SAT OCT 7 2017 PRZ005-007>010-071845- Northwest-North Central-Mayaguez and Vicinity-Western Interior-Ponce and Vicinity- 157 PM AST SAT OCT 7 2017 ...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SABANA GRANDE... LAS MARIAS...LARES...SAN SEBASTIAN...WESTERN ARECIBO...SOUTHEASTERN ISABELA...ADJUNTAS...NORTHWESTERN YAUCO...QUEBRADILLAS...CAMUY... MARICAO...NORTHEASTERN SAN GERMAN...HATILLO AND UTUADO MUNICIPALITIES... At 156 PM AST, a strong thunderstorm was located near Lares, moving west at 15 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Arecibo, Adjuntas, Quebradillas, Utuado, Lares, San Sebastian, Camuy, Hatillo, Rafael Capo, Rafael Gonzalez, Bajadero, Maricao, Juncal, Quebrada, Cayuco, Piedra Gorda, Cacao, Corcovado and Mora. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 1847 6668 1816 6666 1813 6701 1848 6703 TIME...MOT...LOC 1756Z 099DEG 12KT 1830 6683
Special weather statement, Oct 7, 1:45 PM CDT, 29 minutes before
Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
245 PM AST SAT OCT 7 2017
PRZ008>010-071930-
Northwest-Mayaguez and Vicinity-Western Interior-
245 PM AST SAT OCT 7 2017
...A STRONG THUNDERSTORM WILL AFFECT LAS MARIAS...LARES...SAN
SEBASTIAN...SOUTHEASTERN ISABELA...NORTHWESTERN ADJUNTAS...MOCA...
QUEBRADILLAS...EASTERN ANASCO...CAMUY...NORTH CENTRAL MARICAO...
NORTHEASTERN MAYAGUEZ...WESTERN HATILLO...WEST CENTRAL UTUADO AND
EASTERN AGUADA MUNICIPALITIES...
At 245 PM AST, a strong thunderstorm was located over San Sebastian,
moving east at 5 mph.
Winds in excess of 40 mph are possible with this storm.
Locations impacted include...
Lares, Hatillo, San Sebastian, Camuy, Moca, Quebradillas, Hato
Arriba, Juncal, Quebrada, Piedra Gorda, Cacao and Espino.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 1850 6680 1820 6680 1819 6712 1839 6713
1850 6683
TIME...MOT...LOC 1845Z 256DEG 6KT 1834 6695Special weather statement, Oct 7, 1:48 PM CDT, 26 minutes before
Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
248 PM AST SAT OCT 7 2017
PRZ005-006-008-009-071930-
Northwest-North Central-Central Interior-Western Interior-
248 PM AST SAT OCT 7 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN VEGA BAJA...
FLORIDA...BARCELONETA...NORTHWESTERN MOROVIS...ARECIBO...NORTHEASTERN
JAYUYA...CIALES...NORTHWESTERN OROCOVIS...HATILLO...UTUADO...
NORTHWESTERN ADJUNTAS AND MANATI MUNICIPALITIES...
At 247 PM AST, a strong thunderstorm was located over La Alianza, or
near Florida. the storm is nearly stationary.
Winds in excess of 40 mph are possible with this storm.
Locations impacted include...
Arecibo, Ciales, Florida, Manati, Utuado, Barceloneta, Pajonal, La
Alianza, Coto Norte, Rafael Capo, Bajadero, Imbery, La Luisa, Rafael
Gonzalez, Barahona, Tiburones, Animas, Carrizales, Garrochales and
Sabana Hoyos.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 1848 6648 1849 6643 1826 6646 1820 6681
1850 6681 1849 6671 1851 6661
TIME...MOT...LOC 1847Z 000DEG 0KT 1841 6664Special weather statement, Oct 7, 1:56 PM CDT, 18 minutes before
Comunicado Especial sobre las Condiciones del Tiempo Servicio Nacional de Meteorologia San Juan PR 157 PM AST sabado 7 de octubre de 2017 PRZ005-007>010-071845- Noroeste-Norte Central-Mayaguez y Vecindad-Oeste Interior-Ponce y Vecindad- 157 PM AST sabado 7 de octubre de 2017 ...UNA TRONADA FUERTE AFECTARA LOS SIGUIENTES MUNICIPIOS DE PUERTO RICO...SABANA GRANDE...LAS MARIAS...LARES...SAN SEBASTIAN... ARECIBO...ISABELA...ADJUNTAS...YAUCO...QUEBRADILLAS...CAMUY... MARICAO...SAN GERMAN...HATILLO Y UTUADO... A las 1:56 PM AST, una fuerte tronada estaba localizada sobre Lares, moviendose hacia el oeste a 15 mph. Vientos en rafagas de 40 mph son posibles con esta tronada. Lugares que seran afectados incluyen... Arecibo, Adjuntas, Quebradillas, Utuado, Lares, San Sebastian, Camuy, Hatillo, Rafael Capo, Rafael Gonzalez, Bajadero, Maricao, Juncal, Quebrada, Cayuco, Piedra Gorda, Cacao, Corcovado y Mora. Lluvias torrenciales tambien estan ocurriendo con estas tormentas, y podrian causar inundaciones localizdas. No intente conducir su vehiculo a traves de carreteras inundadas. Rayos frecuentes de nube a suelo estan ocurriendo con esta tormenta. Los rayos pueden afectar a 10 millas de distancia de la tronada. Busque refugio seguro dentro de un vehiculo o edificio.
Local storm report, Oct 7, 2:08 PM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
308 PM AST SAT OCT 07 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0305 PM FLASH FLOOD UTUADO 18.27N 66.71W
10/07/2017 UTUADO PR EMERGENCY MNGR
FLASH FLOODING AND MUDSLIDES REPORTED IN UTUADO, 10
HOUSES AFFECTED IN URB SAN JOSE AND THE UTUADO HOSPITAL
IS CURRENTLY FLOODED. ALSO, ROAD 10 FROM UTUADO TO
ADJUNTAS WAS IMPACTED BY MUDSLIDE AND ROAD IS IMPASSABLE.
&&
DSANCHEZThe office that day
Everything else NWS JSJ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 8:10 PM CDT | Areal Flood Warning | JSJ | 3 hr | |
| Oct 7, 11:42 AM CDT | Special Weather Statement | JSJ | 48 min | |
| Oct 7, 12:10 PM CDT | Special Weather Statement | JSJ | 50 min | |
| Oct 7, 12:32 PM CDT | Special Weather Statement | JSJ | 28 min | |
| Oct 7, 12:55 PM CDT | Special Weather Statement | JSJ | 50 min | |
| Oct 7, 12:57 PM CDT | Special Weather Statement | JSJ | 48 min | |
| Oct 7, 1:34 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 7, 1:45 PM CDT | Special Weather Statement | JSJ | 45 min | |
| Oct 7, 1:48 PM CDT | Special Weather Statement | JSJ | 42 min | |
| Oct 7, 2:13 PM CDT | Areal Flood Advisory | JSJ | 6 hr | |
| Oct 7, 2:20 PM CDT | Areal Flood Advisory | JSJ | 3 hr | |
| Oct 7, 2:59 PM CDT | Flash Flood Warning | JSJ | 3 hr | |
| Oct 7, 5:16 PM CDT | Areal Flood Advisory | JSJ | 3 hr |
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.