Alert archive / Puerto Rico / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS JSJ
NWS JSJ issued this flash flood watch at Aug 14, 2021, 3:43 AM CDT. It took effect at Aug 15, 2021, 10:00 AM CDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 2021, 3:43 AM CDT (08:43 UTC)
- In effect from
- Aug 15, 2021, 10:00 AM CDT
- Expired
- Aug 16, 2021, 1:13 AM CDT
- In force
- 15 hr
- Issued by
- NWS JSJ
- Flood severity
- None
The text
As transmitted.
729 WGCA62 TJSJ 140843 FFASJU Flood Watch National Weather Service San Juan PR 443 AM AST Sat Aug 14 2021 .There is an increasing risk for flooding Sunday morning thru Monday evening. PRZ001>013-VIZ001-002-141645- /O.NEW.TJSJ.FF.A.0002.210815T1500Z-210817T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Morovis, Santa Isabel, Toa Alta, Las Piedras, Cabo Rojo, Lajas, Trujillo Alto, Yabucoa, Arecibo, Mayaguez, Maunabo, Anna's Retreat, San Sebastian, Aibonito, Guayama, Corozal, Charlotte Amalie, Naguabo, Maricao, Charlotte Amalie West, San Juan, Jayuya, Gurabo, Hormigueros, Carolina, Aguada, Rincon, Adjuntas, Vega Alta, Vieques, Christiansted, Lares, Loiza, Florida, Manati, Aguadilla, Cidra, Canovanas, Sabana Grande, Orocovis, Luquillo, Isabela, Arroyo, Ponce, Moca, Juncos, Vega Baja, Camuy, Aguas Buenas, Guanica, Culebra, Bayamon, Guayanilla, Cruz Bay, San German, Catano, Ceiba, Ciales, Juana Diaz, Quebradillas, Frederiksted Southeast, Yauco, Rio Grande, Utuado, Las Marias, San Lorenzo, Humacao, Villalba, Baranquitas, Caguas, Charlotte Amalie East, Penuelas, Coamo, Hatillo, Naranjito, Guaynabo, Comerio, Frederiksted, Dorado, Grove Place, Toa Baja, Barceloneta, Anasco, Cayey, Fajardo, Patillas, and Salinas 443 AM AST Sat Aug 14 2021 ...FLASH FLOOD WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... The National Weather Service in San Juan has issued a * Flash Flood Watch for Portions of Puerto Rico, including the following , Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques and Western Interior. Portions of Virgin Islands, including the following , St Croix and St.Thomas...St. John...and Adjacent Islands. * From Sunday morning through Monday evening. * Tropical Storm Grace located 420 miles east of Leeward Islands is expected to track west in the general direction towards the U.S. Virgin Islands and Puerto Rico. The most likely time period for the heaviest rainfall activity associated with this approaching Tropical Storm is Sunday afternoon into Monday, while the areas most likely to receive the highest rainfall accumulations are portions of the southern and eastern Puerto Rico as well as the U.S. Virgin Islands. * Expect rainfall accumulations between 3 and 6 inches, particularly across the U.S. Virgin Islands and southern and eastern Puerto Rico. As a result, there is an increasing potential for urban and small stream flooding and flash flooding, which could lead to mudslides as well as rapid river rises Sunday afternoon thru Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ OMS
6 follow-up statements
507 WGCA62 TJSJ 141528 FFASJU FLASH FLOOD WATCH National Weather Service San Juan PR 1128 AM AST Sat Aug 14 2021 .There is a a risk of flooding from Sunday morning through Monday evening. PRZ001>013-VIZ001-002-150330- /O.CON.TJSJ.FF.A.0002.210815T1500Z-210817T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior- North Central-Central Interior-Ponce and Vicinity-Northwest- Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, Trujillo Alto, Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, Rio Grande, Arroyo, Guayama, Maunabo, Patillas, Salinas, Yabucoa, Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, San Lorenzo, Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, Vega Baja, Aibonito, Baranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, Villalba, Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, Santa Isabel, Aguadilla, Camuy, Hatillo, Isabela, Quebradillas, Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, Utuado, Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, San German, Cabo Rojo, Guanica, Lajas, Culebra, Vieques, Anna's Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, Cruz Bay, Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 1128 AM AST Sat Aug 14 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... The Flash Flood Watch continues for * Portions of Puerto Rico and Virgin Islands, including the following areas, in Puerto Rico, Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques, and Western Interior. In Virgin Islands, St Croix and St.Thomas...St. John...and Adjacent Islands. * From Sunday morning through Monday evening * Tropical Storm Grace located 265 miles east of Leeward Islands is expected to track west in the general direction towards the U.S. Virgin Islands and Puerto Rico. The most likely time period for the heaviest rainfall activity associated with this approaching Tropical Storm is Sunday afternoon into Monday, while the areas most likely to receive the highest rainfall accumulations are portions of southern and eastern Puerto Rico as well as the U.S. Virgin Islands. * Expect rainfall accumulations between 3 and 6 inches, particularly across the U.S. Virgin Islands, as well as southern and eastern Puerto Rico where isolated amounts up to 8 inches are possible. As a result, there is a potential for urban and small stream flooding and flash flooding, which could lead to mudslides as well as rapid river rises Sunday afternoon through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
354 WGCA62 TJSJ 142129 FFASJU Flood Watch National Weather Service San Juan PR 529 PM AST Sat Aug 14 2021 .There is a a risk of flooding from Sunday morning through Monday evening. PRZ001>013-VIZ001-002-150400- /O.EXT.TJSJ.FF.A.0002.210815T1500Z-210817T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Morovis, Santa Isabel, Toa Alta, Las Piedras, Cabo Rojo, Lajas, Trujillo Alto, Yabucoa, Arecibo, Mayaguez, Maunabo, Anna's Retreat, San Sebastian, Aibonito, Guayama, Corozal, Charlotte Amalie, Naguabo, Maricao, Charlotte Amalie West, San Juan, Jayuya, Gurabo, Hormigueros, Carolina, Aguada, Rincon, Adjuntas, Vega Alta, Vieques, Christiansted, Lares, Loiza, Florida, Manati, Aguadilla, Cidra, Canovanas, Sabana Grande, Orocovis, Luquillo, Isabela, Arroyo, Ponce, Moca, Juncos, Vega Baja, Camuy, Aguas Buenas, Guanica, Culebra, Bayamon, Guayanilla, Cruz Bay, San German, Catano, Ceiba, Ciales, Juana Diaz, Quebradillas, Frederiksted Southeast, Yauco, Rio Grande, Utuado, Las Marias, San Lorenzo, Humacao, Villalba, Baranquitas, Caguas, Charlotte Amalie East, Penuelas, Coamo, Hatillo, Naranjito, Guaynabo, Comerio, Frederiksted, Dorado, Grove Place, Toa Baja, Barceloneta, Anasco, Cayey, Fajardo, Patillas, and Salinas 529 PM AST Sat Aug 14 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY EVENING... The Flash Flood Watch is now in effect for * Portions of Puerto Rico, including the following , Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques and Western Interior. Portions of Virgin Islands, including the following , St Croix and St.Thomas...St. John...and Adjacent Islands. * From Sunday morning through Monday evening. * Tropical Storm Grace located 55 miles east southeast of Guadeloupe and is expected to track west in the general direction towards the U.S. Virgin Islands and Puerto Rico. The most likely time period for the heaviest rainfall activity associated with this approaching Tropical Storm is Sunday afternoon into Monday, while the areas most likely to receive the highest rainfall accumulations are portions of southern and eastern Puerto Rico as well as the U.S. Virgin Islands. * Expect rainfall accumulations between 3 and 6 inches, particularly across the U.S. Virgin Islands, as well as southern and eastern Puerto Rico where isolated amounts up to 8 inches are possible. As a result, there is a potential for urban and small stream and flash flooding, which could lead to mudslides as well as rapid river rises, especially from Sunday afternoon through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JA
306 WGCA62 TJSJ 150818 FFASJU Flood Watch National Weather Service San Juan PR 418 AM AST Sun Aug 15 2021 .There is a risk of flooding through Monday evening. PRZ001>013-VIZ001-002-152000- /O.CON.TJSJ.FF.A.0002.210815T1500Z-210817T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Morovis, Santa Isabel, Toa Alta, Las Piedras, Cabo Rojo, Lajas, Trujillo Alto, Yabucoa, Arecibo, Mayaguez, Maunabo, Anna's Retreat, San Sebastian, Aibonito, Guayama, Corozal, Charlotte Amalie, Naguabo, Maricao, Charlotte Amalie West, San Juan, Jayuya, Gurabo, Hormigueros, Carolina, Aguada, Rincon, Adjuntas, Vega Alta, Vieques, Christiansted, Lares, Loiza, Florida, Manati, Aguadilla, Cidra, Canovanas, Sabana Grande, Orocovis, Luquillo, Isabela, Arroyo, Ponce, Moca, Juncos, Vega Baja, Camuy, Aguas Buenas, Guanica, Culebra, Bayamon, Guayanilla, Cruz Bay, San German, Catano, Ceiba, Ciales, Juana Diaz, Quebradillas, Frederiksted Southeast, Yauco, Rio Grande, Utuado, Las Marias, San Lorenzo, Humacao, Villalba, Baranquitas, Caguas, Charlotte Amalie East, Penuelas, Coamo, Hatillo, Naranjito, Guaynabo, Comerio, Frederiksted, Dorado, Grove Place, Toa Baja, Barceloneta, Anasco, Cayey, Fajardo, Patillas, and Salinas 418 AM AST Sun Aug 15 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY EVENING... The Flash Flood Watch continues for * Portions of Puerto Rico, including the following , Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques and Western Interior. Portions of Virgin Islands, including the following , St Croix and St.Thomas...St. John...and Adjacent Islands. * From 11 AM AST this morning through Monday evening. * Tropical Storm Grace will continue to move across the local islands today into Monday bringing periods of heavy rain, with the potential for life-threatening flash flooding and mudslides, as well as rapid river flooding. The most likely time period for the heaviest rainfall is late this morning into early Monday, while the areas most likely to receive the highest rainfall accumulations are portions of southern and eastern Puerto Rico as well as the U.S. Virgin Islands. * Expect rainfall accumulations between 3 and 6 inches, particularly across the U.S. Virgin Islands, as well as southern and eastern Puerto Rico where isolated amounts up to 8 inches are possible. As a result, there is a risk for urban and small stream and flash flooding, which could lead to mudslides as well as rapid river rises, through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
560 WGCA62 TJSJ 151542 FFASJU Flood Watch National Weather Service San Juan PR 1142 AM AST Sun Aug 15 2021 .There is a risk of flooding through Monday evening. PRZ001>013-VIZ001-002-160300- /O.CON.TJSJ.FF.A.0002.000000T0000Z-210817T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Morovis, Santa Isabel, Toa Alta, Las Piedras, Cabo Rojo, Lajas, Trujillo Alto, Yabucoa, Arecibo, Mayaguez, Maunabo, Anna's Retreat, San Sebastian, Aibonito, Guayama, Corozal, Charlotte Amalie, Naguabo, Maricao, Charlotte Amalie West, San Juan, Jayuya, Gurabo, Hormigueros, Carolina, Aguada, Rincon, Adjuntas, Vega Alta, Vieques, Christiansted, Lares, Loiza, Florida, Manati, Aguadilla, Cidra, Canovanas, Sabana Grande, Orocovis, Luquillo, Isabela, Arroyo, Ponce, Moca, Juncos, Vega Baja, Camuy, Aguas Buenas, Guanica, Culebra, Bayamon, Guayanilla, Cruz Bay, San German, Catano, Ceiba, Ciales, Juana Diaz, Quebradillas, Frederiksted Southeast, Yauco, Rio Grande, Utuado, Las Marias, San Lorenzo, Humacao, Villalba, Baranquitas, Caguas, Charlotte Amalie East, Penuelas, Coamo, Hatillo, Naranjito, Guaynabo, Comerio, Frederiksted, Dorado, Grove Place, Toa Baja, Barceloneta, Anasco, Cayey, Fajardo, Patillas, and Salinas 1142 AM AST Sun Aug 15 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY EVENING... The Flash Flood Watch continues for * Portions of Puerto Rico, including the following , Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques and Western Interior. Portions of Virgin Islands, including the following , St Croix and St.Thomas...St. John...and Adjacent Islands. * Through Monday evening. * The center of Tropical Storm Grace is south of the local islands, tracking to the west-northwest, with rainbands pushing over the local islands. This storm will continue to bring periods of heavy rain. There is the potential for life-threatening flash flooding and mudslides, as well as rapid river flooding. The heaviest rainfall is likely to occur from now into early Monday. Areas most likely to be affected by highest rainfall accumulations are portions of eastern and southern Puerto Rico, as well as the U.S. Virgin Islands. * Expect total rainfall accumulations between 3 and 6 inches, particularly across the U.S. Virgin Islands, as well as southern and eastern Puerto Rico, with locally higher amounts possible. As a result, there is a risk for urban and small stream and flash flooding, which could lead to mudslides as well as rapid river rises, through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CRS
741 WGCA62 TJSJ 152116 FFASJU URGENT - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WATCH National Weather Service San Juan PR 516 PM AST Sun Aug 15 2021 .The risk of flooding continues into the first part of Monday. PRZ001>013-VIZ001-002-161000- /O.EXT.TJSJ.FF.A.0002.000000T0000Z-210816T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior- North Central-Central Interior-Ponce and Vicinity-Northwest- Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, Trujillo Alto, Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, Rio Grande, Arroyo, Guayama, Maunabo, Patillas, Salinas, Yabucoa, Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, San Lorenzo, Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, Vega Baja, Aibonito, Baranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, Villalba, Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, Santa Isabel, Aguadilla, Camuy, Hatillo, Isabela, Quebradillas, Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, Utuado, Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, San German, Cabo Rojo, Guanica, Lajas, Culebra, Vieques, Anna's Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, Cruz Bay, Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 516 PM AST Sun Aug 15 2021 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH MONDAY AFTERNOON... The Flash Flood Watch is now in effect for * Portions of Puerto Rico and Virgin Islands, including the following areas, in Puerto Rico, Central Interior, Culebra, Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, Southwest, Vieques, and Western Interior. In Virgin Islands, St Croix and St.Thomas...St. John...and Adjacent Islands. * Through Monday afternoon * The center of Tropical Depression Grace is south of the local islands, tracking to the west-northwest, with rainbands pushing over the local islands. This storm will continue to bring periods of heavy rain. The potential for life-threatening flash flooding and mudslides continues, as well as rapid river flooding. The heavy rainfall activity will continue into early Monday, with southern and eastern Puerto Rico having the best chance of observing the heaviest rainfall activity. * Expect additional rainfall amounts of 1 to 3 inches with locally higher amounts, particularly across southern and eastern Puerto Rico. As a result, there is a risk for urban and small stream and flash flooding, which could lead to mudslides as well as rapid river rises, through the first part of Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
702 WGCA62 TJSJ 160613 FFASJU Flood Watch National Weather Service San Juan PR 213 AM AST Mon Aug 16 2021 PRZ001>013-VIZ001-002-160715- /O.CAN.TJSJ.FF.A.0002.000000T0000Z-210816T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Morovis, Santa Isabel, Toa Alta, Las Piedras, Cabo Rojo, Lajas, Trujillo Alto, Yabucoa, Arecibo, Mayaguez, Maunabo, Anna's Retreat, San Sebastian, Aibonito, Guayama, Corozal, Charlotte Amalie, Naguabo, Maricao, Charlotte Amalie West, San Juan, Jayuya, Gurabo, Hormigueros, Carolina, Aguada, Rincon, Adjuntas, Vega Alta, Vieques, Christiansted, Lares, Loiza, Florida, Manati, Aguadilla, Cidra, Canovanas, Sabana Grande, Orocovis, Luquillo, Isabela, Arroyo, Ponce, Moca, Juncos, Vega Baja, Camuy, Aguas Buenas, Guanica, Culebra, Bayamon, Guayanilla, Cruz Bay, San German, Catano, Ceiba, Ciales, Juana Diaz, Quebradillas, Frederiksted Southeast, Yauco, Rio Grande, Utuado, Las Marias, San Lorenzo, Humacao, Villalba, Baranquitas, Caguas, Charlotte Amalie East, Penuelas, Coamo, Hatillo, Naranjito, Guaynabo, Comerio, Frederiksted, Dorado, Grove Place, Toa Baja, Barceloneta, Anasco, Cayey, Fajardo, Patillas, and Salinas 213 AM AST Mon Aug 16 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for Puerto Rico and the US Virgin Islands has been cancelled. The Flood Watch is cancelled. Widespread flooding is no longer expected to pose a threat. $$
The office that day
Everything else NWS JSJ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 3:49 AM CDT | Tropical Storm Warning | JSJ | 36 hr | |
| Aug 14, 10:10 AM CDT | Rip Current Statement | JSJ | 41 hr | |
| Aug 14, 2:08 PM CDT | Areal Flood Advisory | JSJ | 3 hr |
Nearby
Flash Flood Watches in Puerto Rico, 2021Flash Flood Watches in U.S. Virgin Islands, 2021Every flash flood watch in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.