Alert archive / Puerto Rico / Flash Flood Warnings in 2021

Flash Flood Warning 6, NWS JSJ

June 10, 2021

NWS JSJ issued this flash flood warning at Jun 10, 2021, 9:17 AM CDT. It was in force for 3 hr. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 10, 2021, 9:17 AM CDT (14:17 UTC)
Expired: Jun 10, 2021, 12:00 PM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 32 km from the middle of the area, began a volume at 14:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 10, 9:30 AM CDT	FLOOD	San Juan, PR	FLOODING REPORTED IN OCEAN PARK-AVE MCLEARY, CALLE LOIZA ACROSS FROM A FIRESTATION AND THE SHELL GAS STATION, CALLE MONSINTA, CALLE CACIQUE, CALLE TAFT, CALLE BUCARE IN PUNTA LAS MARIAS, AND RESIDENCIAL LUIS LLORENS TORRES.
Jun 10, 9:30 AM CDT	FLOOD	San Juan, PR	SEVERAL ROADS WERE FLOODED IN THE AREA OF CONDADO-CALLE WILSON, CALLE CARIBE Y ACROSS FROM HOTEL MARIOTT.
Jun 10, 9:30 AM CDT	FLASH FLOOD	San Juan, PR	FLOODING REPORTED ALONG CALLE BETANCE IN SANTURCE WITH PEOPLE TRAPPED.
Jun 10, 9:30 AM CDT	FLASH FLOOD	San Juan, PR	SIGNIFICANT FLOODING REPORTED ALONG EXPRESSO BARDORIOTY NEAR TUNEL MINILLAS.
Jun 10, 9:47 AM CDT	FLOOD	Carolina, PR	FLOODING REPORTED ALONG CALLE HERMANOS RODRIGUEZ EMMA.
Jun 10, 9:48 AM CDT	FLOOD	3 Se San Juan, PR	WATER ENTERING A BUSINESS IN CONDADO
Jun 10, 9:48 AM CDT	FLASH FLOOD	Carolina, PR	FLOODING REPORTED ALONG CALLE EL PALMAR IN THE AREA OF ISLA VERDE WITH WATER ENTERING RESIDENCES.
Jun 10, 9:48 AM CDT	FLASH FLOOD	San Juan, PR	FLOODING REPORTED IN CALLE PALACIOS IN SANTURCE FLOODING A HOUSE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

As transmitted.

212 
WGCA52 TJSJ 101417
FFWSJU
PRC031-127-101530-
/O.NEW.TJSJ.FF.W.0006.210610T1417Z-210610T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
1017 AM AST Thu Jun 10 2021

The National Weather Service in San Juan has issued a

* Flash Flood Warning for...
  Carolina in Puerto Rico...
  San Juan in Puerto Rico...

* Until 1130 AM AST.

* At 1017 AM AST, Emergency management and doppler radar reported 
  thunderstorms producing heavy rain across the warned area. Up to 1 
  inch of rain has fallen. Additional rainfall amounts of 1 to 2 
  inches are possible in the warned area. Urban and Flash flooding 
  is ongoing or expected to begin shortly.Flood Advisory for 
  Carolina and San Juan has been replaced by a Flash Flood Warning.

  HAZARD...Flash flooding caused by heavy rains with strong
           thunderstorms.

  SOURCE...Emergency management reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  San Juan, Trujillo Alto, Carolina, Guaynabo and Lomas.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

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 1847 6613 1844 6602 1846 6598 1843 6598
      1843 6593 1827 6591 1838 6600 1838 6603
      1837 6604 1830 6605 1830 6608 1838 6609
      1839 6609 1841 6609 1843 6611 1841 6608
      1844 6608 1843 6604

FLASH FLOOD...OBSERVED

$$

RAM

2 follow-up statements

121 
WGCA52 TJSJ 101524
FFWSJU
PRC031-127-101700-
/O.EXT.TJSJ.FF.W.0006.000000T0000Z-210610T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
1124 AM AST Thu Jun 10 2021

The National Weather Service in San Juan has extended the

* Flash Flood Warning for...
  Carolina in Puerto Rico...
  San Juan in Puerto Rico...

* Until 100 PM AST.

* At 1124 AM AST, Emergency management reported thunderstorms 
  producing heavy rain across the warned area. Between 1 and 3 
  inches of rain have fallen. Additional rainfall amounts of 1 to 2 
  inches are possible in the warned area. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  San Juan, Trujillo Alto, Carolina, Guaynabo and Lomas.

Tunel Minillas, Baldorioty de Castro and Ocean Park.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

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 1847 6613 1844 6602 1846 6598 1843 6598
      1843 6593 1827 6591 1838 6600 1838 6603
      1837 6604 1830 6605 1830 6608 1838 6609
      1839 6609 1841 6609 1843 6611 1841 6608
      1844 6608 1843 6604

FLASH FLOOD...OBSERVED

$$

RAM

548 
WGCA72 TJSJ 101651
FFSSJU

Flash Flood Statement
National Weather Service San Juan PR
1251 PM AST Thu Jun 10 2021

PRC031-127-101701-
/O.EXP.TJSJ.FF.W.0006.000000T0000Z-210610T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carolina PR-San Juan PR-
1251 PM AST Thu Jun 10 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 1 PM AST THIS AFTERNOON FOR 
CAROLINA AND SAN JUAN...

The heavy rain has ended. Please continue to heed remaining road 
closures.

LAT...LON 1847 6613 1844 6602 1846 6598 1843 6598
      1843 6593 1827 6591 1838 6600 1838 6603
      1837 6604 1830 6605 1830 6608 1838 6609
      1839 6609 1841 6609 1843 6611 1841 6608
      1844 6608 1843 6604

$$

OMS

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Jun 10, 8:38 AM CDT	Areal Flood Advisory	JSJ	39 min
Jun 10, 9:05 AM CDT	Areal Flood Advisory	JSJ	39 min
Jun 10, 9:44 AM CDT	Flash Flood Warning	JSJ	2 hr
Jun 10, 10:39 AM CDT	Areal Flood Advisory	JSJ	89 min
Jun 10, 10:55 AM CDT	Areal Flood Advisory	JSJ	73 min
Jun 10, 11:20 AM CDT	Flash Flood Warning Considerable damage threat	JSJ	2 hr
Jun 10, 11:26 AM CDT	Special Marine Warning	JSJ	94 min
Jun 10, 11:49 AM CDT	Areal Flood Advisory	JSJ	3 hr
Jun 10, 11:53 AM CDT	Areal Flood Advisory	JSJ	97 min
Jun 10, 12:17 PM CDT	Areal Flood Advisory	JSJ	3 hr
Jun 10, 1:22 PM CDT	Areal Flood Advisory	JSJ	2 hr
Jun 10, 1:23 PM CDT	Flash Flood Warning	JSJ	2 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2021 Every flash flood warning 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; local storm reports from the same archive; radar from the NEXRAD Level II archive.