Alert archive / Puerto Rico / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS JSJ

May 10, 2014

NWS JSJ issued this flash flood warning at May 10, 2014, 7:55 AM CDT. It was in force for 5 hr. 5 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: May 10, 2014, 7:55 AM CDT (12:55 UTC)
Expired: May 10, 2014, 1:15 PM CDT
In force: 5 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 43 km from the middle of the area, began a volume at 12:58 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
May 10, 9:00 AM CDT	FLOOD	Naguabo, PR	LANDSLIDE ROAD PR-53 INTERSECTION WITH PR-192.
May 10, 9:00 AM CDT	FLASH FLOOD	Luquillo, PR	CAR SWEPT AWAY AT PR-3 NEAR RESIDENCIAL EL CEMI.
May 10, 9:00 AM CDT	FLASH FLOOD	Luquillo, PR	ROAD 988 AND 983 IMPASSABLE.
May 10, 9:00 AM CDT	FLASH FLOOD	Naguabo, PR	ROAD PR-31 AT SECTOR LA FE IMPASSABLE.
May 10, 9:00 AM CDT	FLASH FLOOD	Rio Grande, PR	LANDSLIDE ROAD PR-191. CAR SWEPT WAY AT RIO ESPIRITU SANTO.

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

The text

As transmitted, in the capitals the NWS used until 2016.

801 
WGCA52 TJSJ 101255 RRA
FFWSJU
PRC037-053-089-103-119-101545-
/O.NEW.TJSJ.FF.W.0004.140510T1255Z-140510T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
855 AM AST SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CEIBA
     NAGUABO
     FAJARDO
     LUQUILLO
     RIO GRANDE

* UNTIL 1145 AM AST

* AT 849 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH HEAVY RAIN OVER NORTHEAST PUERTO RICO. IN 
ADDITION...RIO FAJARDO AND RIO ESPIRITU SANTO ARE APPROACHING FLOOD 
STAGE AND RISING...WHILE RIO BLANCO IS NOW OVER ITS FLOOD STAGE. 
ADDITIONAL HEAVY RAIN IS EXPECTED...CAUSING EVEN MORE FLOODING OF 
THAT AREA FOR THE NEXT FEW HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1842 6576 1839 6574 1840 6572 1837 6568
      1839 6561 1827 6562 1826 6559 1820 6560
      1818 6572 1822 6582 1826 6582 1827 6583
      1833 6585 1843 6585

$$

JJA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

3 follow-up statements

302 
WGCA52 TJSJ 101538
FFWSJU
PRC037-053-089-103-119-101715-
/O.EXT.TJSJ.FF.W.0004.000000T0000Z-140510T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
1138 AM AST SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CEIBA
     NAGUABO
     FAJARDO
     LUQUILLO
     RIO GRANDE

* UNTIL 115 PM AST

* AT 1127 AM AST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES 
TO INDICATE MODERATE RAINFALL OVER THE WARNED AREA. IN 
ADDITION...LOCAL EMERGENCY MANAGERS HAVE REPORTED THE AREA RIVERS TO 
BE FLOODED AND ALSO LOCAL ROADS TO BE COMPLETELY 
IMPASSABLE...CAUSING LIFE THREATENING SITUATIONS. THEREFORE THE 
FLASH FLOOD WARNING WAS EXTENDED UNTIL 115 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 1842 6576 1839 6574 1840 6572 1837 6568
      1839 6561 1827 6562 1826 6559 1820 6560
      1818 6572 1822 6582 1826 6582 1827 6583
      1833 6585 1843 6585

$$

JJA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

588 
WGCA52 TJSJ 101711
FFWSJU
PRC037-053-089-103-119-101815-
/O.EXT.TJSJ.FF.W.0004.000000T0000Z-140510T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
111 PM AST SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CEIBA
     NAGUABO
     FAJARDO
     LUQUILLO
     RIO GRANDE

* UNTIL 215 PM AST

* AT 100 PM AST...LOCAL EMERGENCY MANAGERS REPORTED LIFE THREATENING 
FLOODING OVER THE WARNED AREA. EXCESSIVE RUNOFF FROM THE PREVIOUS 
SHOWERS AND ADDITIONAL LIGHT TO MODERATE SHOWERS MOVING INTO THE 
AREA WILL AGGRAVATE THE CURRENT FLOODING SITUATION AND ALSO CAUSE 
MUDSLIDES IN AREAS OF STEEP TERRAIN. FOR THAT REASON THE FLASH FLOOD 
WARNING WAS EXTENDED UNTIL 215 PM AST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 1842 6576 1839 6574 1840 6572 1837 6568
      1839 6561 1827 6562 1826 6559 1820 6560
      1818 6572 1822 6582 1826 6582 1827 6583
      1833 6585 1843 6585

$$

JJA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

461 
WGCA72 TJSJ 101814
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
214 PM AST SAT MAY 10 2014

PRC037-053-089-103-119-101819-
/O.EXP.TJSJ.FF.W.0004.000000T0000Z-140510T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CEIBA PR-NAGUABO PR-FAJARDO PR-LUQUILLO PR-RIO GRANDE PR-
214 PM AST SAT MAY 10 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 215 PM AST FOR RIO
GRANDE...LUQUILLO...FAJARDO...NAGUABO AND CEIBA MUNICIPALITIES...

HEAVY RAIN THAT AFFECTED THE AREA HAS MOSTLY DISSIPATED AND ONLY 
LIGHT RAIN REMAINS. HOWEVER...LOCAL EMERGENCY MANAGERS INDICATED 
THAT THERE ARE ROADS IN THE AREA THAT ARE COMPLETELY FLOODED AND 
IMPASSABLE. EXCESSIVE RUNOFF WILL KEEP THE ROADS FLOODED FOR THE 
NEXT SEVERAL HOURS. EVEN THOUGH THE FLASH FLOOD WARNING WILL BE 
ALLOWED TO EXPIRE AT 215 PM AST...A FLOOD ADVISORY FOR URBAN  AND 
POOR DRAINAGE AREAS WILL REMAIN IN EFFECT.

LAT...LON 1842 6576 1839 6574 1840 6572 1837 6568
      1839 6561 1827 6562 1826 6559 1820 6560
      1818 6572 1822 6582 1826 6582 1827 6583
      1833 6585 1843 6585

$$

JJA

ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
     HTTP://WWW.WEATHER.GOV/SANJUAN

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
May 10, 5:45 AM CDT	Areal Flood Advisory	JSJ	5 hr
May 10, 5:48 AM CDT	Areal Flood Advisory	JSJ	5 hr
May 10, 6:30 AM CDT	Areal Flood Advisory	JSJ	3 hr
May 10, 7:55 AM CDT	Flash Flood Warning	JSJ	110 min
May 10, 8:16 AM CDT	Areal Flood Advisory	JSJ	119 min
May 10, 9:27 AM CDT	Areal Flood Advisory	JSJ	6 hr
May 10, 10:47 AM CDT	Areal Flood Advisory	JSJ	118 min
May 10, 10:51 AM CDT	Areal Flood Advisory	JSJ	114 min

Nearby

Flash Flood Warnings in Puerto Rico, 2014 Every flash flood warning in 2014

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.