Alert archive / Puerto Rico / Flash Flood Warnings in 2016

Flash Flood Warning 25, NWS JSJ

November 4, 2016

NWS JSJ issued this flash flood warning at Nov 4, 2016, 7:46 PM CDT. It was in force for 3 hr. 1 report 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: Nov 4, 2016, 7:46 PM CDT (00:46 UTC)
Expired: Nov 4, 2016, 10:45 PM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 12 km from the middle of the area, began a volume at 00:45 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
Nov 4, 8:47 PM CDT	FLOOD	Arroyo, PR	URBAN FLOODING WAS REPORTED AT CUATRO CALLES SECTOR AND BARRIO ANCONES.

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

The text

As transmitted.

321 
WGCA52 TJSJ 050046
FFWSJU
PRC015-057-109-050345-
/O.NEW.TJSJ.FF.W.0025.161105T0046Z-161105T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
846 PM AST FRI NOV 4 2016

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GUAYAMA MUNICIPALITY IN PUERTO RICO...
  ARROYO MUNICIPALITY IN PUERTO RICO...
  PATILLAS MUNICIPALITY IN PUERTO RICO...

* UNTIL 1145 PM AST
    
* AT 842 PM AST...DOPPLER RADAR INDICATED TORRENTIAL RAINFALL
  AFFECTING GUAYAMA, ARROYO, AND PATILLAS AND ADDITIONAL AREAS OF
  TORRENTIAL RAINFALL WILL AFFECT THESE MUNICIPALITIES THROUGH AT
  LEAST 1145PM. THEREFORE...FLASH FLOODING IS IMMINENT OR IS ALREADY
  OCCURRING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 1794 6619 1795 6618 1795 6619 1804 6615
      1804 6613 1806 6612 1810 6613 1810 6602
      1807 6601 1806 6599 1803 6597 1803 6596
      1800 6595 1798 6592 1797 6598 1798 6602
      1795 6605 1797 6608 1793 6616

$$

CASTRO

1 follow-up statement

408 
WGCA72 TJSJ 050337
FFSSJU

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1137 PM AST FRI NOV 4 2016

PRC015-057-109-050346-
/O.EXP.TJSJ.FF.W.0025.000000T0000Z-161105T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUAYAMA PR-ARROYO PR-PATILLAS PR-
1137 PM AST FRI NOV 4 2016

...THE FLASH FLOOD WARNING FOR GUAYAMA...ARROYO AND PATILLAS
MUNICIPALITIES WILL EXPIRE AT 1145 PM AST...

FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. THE HEAVY RAIN HAS ENDED FOR THE NIGHT
ALTHOUGH THERE MAY BE A FEW LIGHT SHOWERS. PLEASE CONTINUE TO HEED
ANY ROAD CLOSURES.

LAT...LON 1794 6619 1795 6618 1795 6619 1804 6615
      1804 6613 1806 6612 1810 6613 1810 6602
      1807 6601 1806 6599 1803 6597 1803 6596
      1800 6595 1798 6592 1797 6598 1798 6602
      1795 6605 1797 6608 1793 6616

$$

SNELL

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
Nov 4, 7:31 PM CDT	Areal Flood Advisory	JSJ	3 hr
Nov 4, 7:36 PM CDT	Special Marine Warning	JSJ	54 min
Nov 4, 8:29 PM CDT	Special Marine Warning	JSJ	91 min
Nov 4, 8:39 PM CDT	Areal Flood Advisory	JSJ	2 hr
Nov 4, 8:54 PM CDT	Special Weather Statement	JSJ	66 min
Nov 4, 10:47 PM CDT	Flash Flood Warning	JSJ	3 hr
Nov 4, 10:50 PM CDT	Areal Flood Advisory	JSJ	3 hr
Nov 4, 11:45 PM CDT	Areal Flood Warning	JSJ	12 hr
Nov 5, 10:27 AM CDT	Special Weather Statement	JSJ	48 min

Nearby

Flash Flood Warnings in Puerto Rico, 2016 Every flash flood warning in 2016

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.